./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 8026e8fad442d359c5ad25f6b8e6c64a8eb4f5fda678822051ba0bded2a5b47e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 23:43:22,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 23:43:22,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-12 23:43:22,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 23:43:22,708 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 23:43:22,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 23:43:22,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 23:43:22,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 23:43:22,740 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 23:43:22,742 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 23:43:22,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 23:43:22,742 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 23:43:22,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 23:43:22,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 23:43:22,744 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 23:43:22,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 23:43:22,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 23:43:22,746 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 23:43:22,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 23:43:22,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 23:43:22,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 23:43:22,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 23:43:22,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 23:43:22,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 23:43:22,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 23:43:22,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 23:43:22,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 23:43:22,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 23:43:22,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 23:43:22,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:43:22,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 23:43:22,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 23:43:22,754 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 23:43:22,754 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 23:43:22,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 23:43:22,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 23:43:22,755 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 23:43:22,755 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 23:43:22,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 23:43:22,756 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8026e8fad442d359c5ad25f6b8e6c64a8eb4f5fda678822051ba0bded2a5b47e [2024-10-12 23:43:23,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 23:43:23,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 23:43:23,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 23:43:23,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 23:43:23,108 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 23:43:23,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p2.c [2024-10-12 23:43:24,546 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 23:43:24,926 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 23:43:24,926 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p2.c [2024-10-12 23:43:24,950 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74794aecf/88afe14943ac4f69a5f0f49444704a6f/FLAG2d6f827b9 [2024-10-12 23:43:24,970 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74794aecf/88afe14943ac4f69a5f0f49444704a6f [2024-10-12 23:43:24,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 23:43:24,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 23:43:24,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 23:43:24,977 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 23:43:24,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 23:43:24,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:43:24" (1/1) ... [2024-10-12 23:43:24,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eb4a6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:24, skipping insertion in model container [2024-10-12 23:43:24,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:43:24" (1/1) ... [2024-10-12 23:43:25,052 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 23:43:25,280 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p2.c[1257,1270] [2024-10-12 23:43:25,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:43:25,665 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 23:43:25,676 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p2.c[1257,1270] [2024-10-12 23:43:25,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:43:25,883 INFO L204 MainTranslator]: Completed translation [2024-10-12 23:43:25,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25 WrapperNode [2024-10-12 23:43:25,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 23:43:25,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 23:43:25,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 23:43:25,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 23:43:25,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25" (1/1) ... [2024-10-12 23:43:25,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25" (1/1) ... [2024-10-12 23:43:26,318 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3697 [2024-10-12 23:43:26,319 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 23:43:26,320 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 23:43:26,320 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 23:43:26,320 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 23:43:26,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25" (1/1) ... [2024-10-12 23:43:26,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25" (1/1) ... [2024-10-12 23:43:26,629 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25" (1/1) ... [2024-10-12 23:43:26,838 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]. [2024-10-12 23:43:26,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25" (1/1) ... [2024-10-12 23:43:26,838 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25" (1/1) ... [2024-10-12 23:43:27,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25" (1/1) ... [2024-10-12 23:43:27,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25" (1/1) ... [2024-10-12 23:43:27,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25" (1/1) ... [2024-10-12 23:43:27,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25" (1/1) ... [2024-10-12 23:43:27,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 23:43:27,219 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 23:43:27,219 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 23:43:27,219 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 23:43:27,220 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25" (1/1) ... [2024-10-12 23:43:27,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:43:27,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 23:43:27,258 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) [2024-10-12 23:43:27,262 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 [2024-10-12 23:43:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 23:43:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 23:43:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 23:43:27,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 23:43:27,670 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 23:43:27,672 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 23:43:31,158 INFO L? ?]: Removed 2341 outVars from TransFormulas that were not future-live. [2024-10-12 23:43:31,158 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 23:43:31,255 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 23:43:31,256 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 23:43:31,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:43:31 BoogieIcfgContainer [2024-10-12 23:43:31,257 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 23:43:31,259 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 23:43:31,259 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 23:43:31,262 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 23:43:31,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:43:24" (1/3) ... [2024-10-12 23:43:31,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d128875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:43:31, skipping insertion in model container [2024-10-12 23:43:31,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:43:25" (2/3) ... [2024-10-12 23:43:31,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d128875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:43:31, skipping insertion in model container [2024-10-12 23:43:31,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:43:31" (3/3) ... [2024-10-12 23:43:31,266 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_two_p2.c [2024-10-12 23:43:31,282 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 23:43:31,283 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 23:43:31,385 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 23:43:31,392 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;@3cc16330, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 23:43:31,393 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 23:43:31,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 1038 states, 1036 states have (on average 1.5038610038610039) internal successors, (1558), 1037 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:31,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-12 23:43:31,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:43:31,416 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] [2024-10-12 23:43:31,417 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:43:31,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:43:31,423 INFO L85 PathProgramCache]: Analyzing trace with hash 911811097, now seen corresponding path program 1 times [2024-10-12 23:43:31,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:43:31,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995608066] [2024-10-12 23:43:31,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:43:31,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:43:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:43:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:43:33,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:43:33,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995608066] [2024-10-12 23:43:33,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995608066] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:43:33,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:43:33,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:43:33,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566507241] [2024-10-12 23:43:33,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:43:33,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:43:33,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:43:33,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:43:33,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:43:33,990 INFO L87 Difference]: Start difference. First operand has 1038 states, 1036 states have (on average 1.5038610038610039) internal successors, (1558), 1037 states have internal predecessors, (1558), 0 states have call successors, (0), 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 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:34,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:43:34,146 INFO L93 Difference]: Finished difference Result 2036 states and 3058 transitions. [2024-10-12 23:43:34,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:43:34,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2024-10-12 23:43:34,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:43:34,177 INFO L225 Difference]: With dead ends: 2036 [2024-10-12 23:43:34,177 INFO L226 Difference]: Without dead ends: 1039 [2024-10-12 23:43:34,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:43:34,193 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 0 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4654 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 23:43:34,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4654 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 23:43:34,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-10-12 23:43:34,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1039. [2024-10-12 23:43:34,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 1038 states have (on average 1.5009633911368014) internal successors, (1558), 1038 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:34,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1558 transitions. [2024-10-12 23:43:34,298 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1558 transitions. Word has length 154 [2024-10-12 23:43:34,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:43:34,300 INFO L471 AbstractCegarLoop]: Abstraction has 1039 states and 1558 transitions. [2024-10-12 23:43:34,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:34,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1558 transitions. [2024-10-12 23:43:34,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-12 23:43:34,304 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:43:34,305 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] [2024-10-12 23:43:34,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 23:43:34,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:43:34,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:43:34,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1796930902, now seen corresponding path program 1 times [2024-10-12 23:43:34,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:43:34,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507908813] [2024-10-12 23:43:34,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:43:34,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:43:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:43:35,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:43:35,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:43:35,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507908813] [2024-10-12 23:43:35,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507908813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:43:35,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:43:35,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:43:35,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17719556] [2024-10-12 23:43:35,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:43:35,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:43:35,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:43:35,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:43:35,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:43:35,425 INFO L87 Difference]: Start difference. First operand 1039 states and 1558 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:43:35,484 INFO L93 Difference]: Finished difference Result 2039 states and 3058 transitions. [2024-10-12 23:43:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:43:35,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2024-10-12 23:43:35,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:43:35,492 INFO L225 Difference]: With dead ends: 2039 [2024-10-12 23:43:35,493 INFO L226 Difference]: Without dead ends: 1041 [2024-10-12 23:43:35,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:43:35,496 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 0 mSDsluCounter, 3098 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4651 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 23:43:35,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4651 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 23:43:35,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-10-12 23:43:35,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1041. [2024-10-12 23:43:35,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1040 states have (on average 1.5) internal successors, (1560), 1040 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:35,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1560 transitions. [2024-10-12 23:43:35,520 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1560 transitions. Word has length 155 [2024-10-12 23:43:35,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:43:35,523 INFO L471 AbstractCegarLoop]: Abstraction has 1041 states and 1560 transitions. [2024-10-12 23:43:35,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:35,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1560 transitions. [2024-10-12 23:43:35,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-12 23:43:35,529 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:43:35,529 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] [2024-10-12 23:43:35,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 23:43:35,530 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:43:35,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:43:35,530 INFO L85 PathProgramCache]: Analyzing trace with hash -968248046, now seen corresponding path program 1 times [2024-10-12 23:43:35,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:43:35,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916748255] [2024-10-12 23:43:35,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:43:35,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:43:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:43:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:43:44,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:43:44,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916748255] [2024-10-12 23:43:44,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916748255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:43:44,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:43:44,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:43:44,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560891073] [2024-10-12 23:43:44,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:43:44,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:43:44,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:43:44,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:43:44,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:43:44,033 INFO L87 Difference]: Start difference. First operand 1041 states and 1560 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:44,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:43:44,783 INFO L93 Difference]: Finished difference Result 2497 states and 3742 transitions. [2024-10-12 23:43:44,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 23:43:44,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2024-10-12 23:43:44,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:43:44,789 INFO L225 Difference]: With dead ends: 2497 [2024-10-12 23:43:44,789 INFO L226 Difference]: Without dead ends: 1497 [2024-10-12 23:43:44,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:43:44,792 INFO L432 NwaCegarLoop]: 1394 mSDtfsCounter, 699 mSDsluCounter, 4163 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 5557 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 23:43:44,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 5557 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 23:43:44,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2024-10-12 23:43:44,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1083. [2024-10-12 23:43:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1082 states have (on average 1.4990757855822552) internal successors, (1622), 1082 states have internal predecessors, (1622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:44,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1622 transitions. [2024-10-12 23:43:44,816 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1622 transitions. Word has length 156 [2024-10-12 23:43:44,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:43:44,816 INFO L471 AbstractCegarLoop]: Abstraction has 1083 states and 1622 transitions. [2024-10-12 23:43:44,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:44,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1622 transitions. [2024-10-12 23:43:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-12 23:43:44,818 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:43:44,818 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] [2024-10-12 23:43:44,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 23:43:44,819 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:43:44,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:43:44,820 INFO L85 PathProgramCache]: Analyzing trace with hash -417684768, now seen corresponding path program 1 times [2024-10-12 23:43:44,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:43:44,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343439289] [2024-10-12 23:43:44,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:43:44,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:43:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:43:49,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:43:49,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:43:49,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343439289] [2024-10-12 23:43:49,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343439289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:43:49,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:43:49,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:43:49,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190767619] [2024-10-12 23:43:49,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:43:49,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:43:49,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:43:49,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:43:49,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:43:49,447 INFO L87 Difference]: Start difference. First operand 1083 states and 1622 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:50,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:43:50,203 INFO L93 Difference]: Finished difference Result 2569 states and 3849 transitions. [2024-10-12 23:43:50,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 23:43:50,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2024-10-12 23:43:50,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:43:50,211 INFO L225 Difference]: With dead ends: 2569 [2024-10-12 23:43:50,212 INFO L226 Difference]: Without dead ends: 1569 [2024-10-12 23:43:50,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:43:50,216 INFO L432 NwaCegarLoop]: 1391 mSDtfsCounter, 805 mSDsluCounter, 4148 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 5539 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 23:43:50,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 5539 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 23:43:50,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2024-10-12 23:43:50,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1084. [2024-10-12 23:43:50,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1083 states have (on average 1.4986149584487534) internal successors, (1623), 1083 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:50,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1623 transitions. [2024-10-12 23:43:50,247 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1623 transitions. Word has length 157 [2024-10-12 23:43:50,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:43:50,248 INFO L471 AbstractCegarLoop]: Abstraction has 1084 states and 1623 transitions. [2024-10-12 23:43:50,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:50,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1623 transitions. [2024-10-12 23:43:50,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-12 23:43:50,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:43:50,249 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] [2024-10-12 23:43:50,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 23:43:50,250 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:43:50,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:43:50,251 INFO L85 PathProgramCache]: Analyzing trace with hash 325253423, now seen corresponding path program 1 times [2024-10-12 23:43:50,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:43:50,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488493989] [2024-10-12 23:43:50,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:43:50,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:43:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:43:55,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:43:55,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:43:55,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488493989] [2024-10-12 23:43:55,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488493989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:43:55,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:43:55,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 23:43:55,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675917648] [2024-10-12 23:43:55,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:43:55,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:43:55,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:43:55,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:43:55,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:43:55,235 INFO L87 Difference]: Start difference. First operand 1084 states and 1623 transitions. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 5 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:55,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:43:55,949 INFO L93 Difference]: Finished difference Result 2683 states and 4018 transitions. [2024-10-12 23:43:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:43:55,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 5 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2024-10-12 23:43:55,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:43:55,956 INFO L225 Difference]: With dead ends: 2683 [2024-10-12 23:43:55,957 INFO L226 Difference]: Without dead ends: 1683 [2024-10-12 23:43:55,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 23:43:55,962 INFO L432 NwaCegarLoop]: 1489 mSDtfsCounter, 951 mSDsluCounter, 5759 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 7248 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 23:43:55,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 7248 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 23:43:55,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2024-10-12 23:43:55,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1116. [2024-10-12 23:43:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.4977578475336324) internal successors, (1670), 1115 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:55,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1670 transitions. [2024-10-12 23:43:55,987 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1670 transitions. Word has length 158 [2024-10-12 23:43:55,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:43:55,987 INFO L471 AbstractCegarLoop]: Abstraction has 1116 states and 1670 transitions. [2024-10-12 23:43:55,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 5 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:43:55,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1670 transitions. [2024-10-12 23:43:55,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-12 23:43:55,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:43:55,990 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] [2024-10-12 23:43:55,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 23:43:55,991 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:43:55,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:43:55,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1835768122, now seen corresponding path program 1 times [2024-10-12 23:43:55,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:43:55,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834983722] [2024-10-12 23:43:55,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:43:55,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:43:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:44:00,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:44:00,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:44:00,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834983722] [2024-10-12 23:44:00,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834983722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:44:00,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:44:00,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:44:00,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750479733] [2024-10-12 23:44:00,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:44:00,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:44:00,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:44:00,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:44:00,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:44:00,539 INFO L87 Difference]: Start difference. First operand 1116 states and 1670 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:01,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:44:01,219 INFO L93 Difference]: Finished difference Result 2649 states and 3967 transitions. [2024-10-12 23:44:01,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 23:44:01,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2024-10-12 23:44:01,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:44:01,226 INFO L225 Difference]: With dead ends: 2649 [2024-10-12 23:44:01,227 INFO L226 Difference]: Without dead ends: 1649 [2024-10-12 23:44:01,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:44:01,229 INFO L432 NwaCegarLoop]: 1391 mSDtfsCounter, 905 mSDsluCounter, 4146 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 5537 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 23:44:01,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 5537 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 23:44:01,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2024-10-12 23:44:01,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1117. [2024-10-12 23:44:01,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 1116 states have (on average 1.4973118279569892) internal successors, (1671), 1116 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:01,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1671 transitions. [2024-10-12 23:44:01,255 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1671 transitions. Word has length 159 [2024-10-12 23:44:01,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:44:01,255 INFO L471 AbstractCegarLoop]: Abstraction has 1117 states and 1671 transitions. [2024-10-12 23:44:01,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:01,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1671 transitions. [2024-10-12 23:44:01,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-12 23:44:01,262 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:44:01,262 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] [2024-10-12 23:44:01,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 23:44:01,262 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:44:01,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:44:01,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1327403116, now seen corresponding path program 1 times [2024-10-12 23:44:01,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:44:01,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688709892] [2024-10-12 23:44:01,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:44:01,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:44:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:44:05,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:44:05,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:44:05,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688709892] [2024-10-12 23:44:05,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688709892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:44:05,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:44:05,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 23:44:05,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093958231] [2024-10-12 23:44:05,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:44:05,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:44:05,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:44:05,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:44:05,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:44:05,140 INFO L87 Difference]: Start difference. First operand 1117 states and 1671 transitions. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:05,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:44:05,851 INFO L93 Difference]: Finished difference Result 2755 states and 4124 transitions. [2024-10-12 23:44:05,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:44:05,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-10-12 23:44:05,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:44:05,858 INFO L225 Difference]: With dead ends: 2755 [2024-10-12 23:44:05,858 INFO L226 Difference]: Without dead ends: 1755 [2024-10-12 23:44:05,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 23:44:05,861 INFO L432 NwaCegarLoop]: 1491 mSDtfsCounter, 1039 mSDsluCounter, 5761 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 7252 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 23:44:05,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 7252 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 23:44:05,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2024-10-12 23:44:05,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1149. [2024-10-12 23:44:05,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 1148 states have (on average 1.4965156794425087) internal successors, (1718), 1148 states have internal predecessors, (1718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:05,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1718 transitions. [2024-10-12 23:44:05,884 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1718 transitions. Word has length 160 [2024-10-12 23:44:05,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:44:05,885 INFO L471 AbstractCegarLoop]: Abstraction has 1149 states and 1718 transitions. [2024-10-12 23:44:05,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:05,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1718 transitions. [2024-10-12 23:44:05,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-12 23:44:05,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:44:05,887 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] [2024-10-12 23:44:05,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 23:44:05,887 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:44:05,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:44:05,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1587110284, now seen corresponding path program 1 times [2024-10-12 23:44:05,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:44:05,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860262562] [2024-10-12 23:44:05,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:44:05,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:44:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:44:09,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:44:09,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:44:09,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860262562] [2024-10-12 23:44:09,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860262562] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:44:09,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:44:09,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 23:44:09,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279482317] [2024-10-12 23:44:09,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:44:09,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:44:09,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:44:09,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:44:09,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:44:09,732 INFO L87 Difference]: Start difference. First operand 1149 states and 1718 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:10,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:44:10,448 INFO L93 Difference]: Finished difference Result 2835 states and 4243 transitions. [2024-10-12 23:44:10,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:44:10,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2024-10-12 23:44:10,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:44:10,455 INFO L225 Difference]: With dead ends: 2835 [2024-10-12 23:44:10,456 INFO L226 Difference]: Without dead ends: 1835 [2024-10-12 23:44:10,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 23:44:10,459 INFO L432 NwaCegarLoop]: 1490 mSDtfsCounter, 1147 mSDsluCounter, 5760 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 7250 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 23:44:10,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 7250 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 23:44:10,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2024-10-12 23:44:10,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1170. [2024-10-12 23:44:10,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 1169 states have (on average 1.4961505560307955) internal successors, (1749), 1169 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1749 transitions. [2024-10-12 23:44:10,490 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1749 transitions. Word has length 161 [2024-10-12 23:44:10,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:44:10,490 INFO L471 AbstractCegarLoop]: Abstraction has 1170 states and 1749 transitions. [2024-10-12 23:44:10,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:10,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1749 transitions. [2024-10-12 23:44:10,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-12 23:44:10,492 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:44:10,492 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] [2024-10-12 23:44:10,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 23:44:10,492 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:44:10,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:44:10,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1662733540, now seen corresponding path program 1 times [2024-10-12 23:44:10,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:44:10,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210818686] [2024-10-12 23:44:10,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:44:10,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:44:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:44:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:44:13,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:44:13,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210818686] [2024-10-12 23:44:13,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210818686] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:44:13,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:44:13,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:44:13,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023784199] [2024-10-12 23:44:13,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:44:13,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:44:13,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:44:13,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:44:13,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:44:13,416 INFO L87 Difference]: Start difference. First operand 1170 states and 1749 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:14,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:44:14,082 INFO L93 Difference]: Finished difference Result 2801 states and 4192 transitions. [2024-10-12 23:44:14,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 23:44:14,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2024-10-12 23:44:14,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:44:14,091 INFO L225 Difference]: With dead ends: 2801 [2024-10-12 23:44:14,091 INFO L226 Difference]: Without dead ends: 1801 [2024-10-12 23:44:14,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:44:14,094 INFO L432 NwaCegarLoop]: 1392 mSDtfsCounter, 1101 mSDsluCounter, 4144 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 5536 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 23:44:14,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 5536 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 23:44:14,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2024-10-12 23:44:14,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1171. [2024-10-12 23:44:14,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1170 states have (on average 1.4957264957264957) internal successors, (1750), 1170 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:14,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1750 transitions. [2024-10-12 23:44:14,125 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1750 transitions. Word has length 162 [2024-10-12 23:44:14,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:44:14,125 INFO L471 AbstractCegarLoop]: Abstraction has 1171 states and 1750 transitions. [2024-10-12 23:44:14,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:14,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1750 transitions. [2024-10-12 23:44:14,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-12 23:44:14,127 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:44:14,128 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] [2024-10-12 23:44:14,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 23:44:14,128 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:44:14,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:44:14,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1974922025, now seen corresponding path program 1 times [2024-10-12 23:44:14,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:44:14,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225525417] [2024-10-12 23:44:14,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:44:14,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:44:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:44:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:44:17,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:44:17,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225525417] [2024-10-12 23:44:17,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225525417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:44:17,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:44:17,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:44:17,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197362167] [2024-10-12 23:44:17,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:44:17,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:44:17,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:44:17,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:44:17,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:44:17,005 INFO L87 Difference]: Start difference. First operand 1171 states and 1750 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:17,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:44:17,588 INFO L93 Difference]: Finished difference Result 2741 states and 4100 transitions. [2024-10-12 23:44:17,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 23:44:17,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2024-10-12 23:44:17,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:44:17,595 INFO L225 Difference]: With dead ends: 2741 [2024-10-12 23:44:17,595 INFO L226 Difference]: Without dead ends: 1721 [2024-10-12 23:44:17,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:44:17,598 INFO L432 NwaCegarLoop]: 1395 mSDtfsCounter, 991 mSDsluCounter, 4146 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 5541 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 23:44:17,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 5541 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 23:44:17,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2024-10-12 23:44:17,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1171. [2024-10-12 23:44:17,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1170 states have (on average 1.494871794871795) internal successors, (1749), 1170 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:17,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1749 transitions. [2024-10-12 23:44:17,639 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1749 transitions. Word has length 163 [2024-10-12 23:44:17,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:44:17,640 INFO L471 AbstractCegarLoop]: Abstraction has 1171 states and 1749 transitions. [2024-10-12 23:44:17,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:17,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1749 transitions. [2024-10-12 23:44:17,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-12 23:44:17,645 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:44:17,645 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] [2024-10-12 23:44:17,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 23:44:17,645 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:44:17,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:44:17,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1291116250, now seen corresponding path program 1 times [2024-10-12 23:44:17,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:44:17,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480011893] [2024-10-12 23:44:17,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:44:17,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:44:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:44:21,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:44:21,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:44:21,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480011893] [2024-10-12 23:44:21,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480011893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:44:21,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:44:21,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 23:44:21,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262907668] [2024-10-12 23:44:21,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:44:21,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:44:21,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:44:21,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:44:21,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:44:21,087 INFO L87 Difference]: Start difference. First operand 1171 states and 1749 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:21,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:44:21,608 INFO L93 Difference]: Finished difference Result 2787 states and 4165 transitions. [2024-10-12 23:44:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:44:21,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2024-10-12 23:44:21,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:44:21,616 INFO L225 Difference]: With dead ends: 2787 [2024-10-12 23:44:21,617 INFO L226 Difference]: Without dead ends: 1755 [2024-10-12 23:44:21,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 23:44:21,622 INFO L432 NwaCegarLoop]: 1495 mSDtfsCounter, 1968 mSDsluCounter, 4423 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 5918 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 23:44:21,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1968 Valid, 5918 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 23:44:21,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2024-10-12 23:44:21,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1171. [2024-10-12 23:44:21,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1170 states have (on average 1.494017094017094) internal successors, (1748), 1170 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:21,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1748 transitions. [2024-10-12 23:44:21,654 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1748 transitions. Word has length 164 [2024-10-12 23:44:21,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:44:21,654 INFO L471 AbstractCegarLoop]: Abstraction has 1171 states and 1748 transitions. [2024-10-12 23:44:21,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:21,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1748 transitions. [2024-10-12 23:44:21,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-12 23:44:21,659 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:44:21,659 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] [2024-10-12 23:44:21,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 23:44:21,660 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:44:21,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:44:21,660 INFO L85 PathProgramCache]: Analyzing trace with hash 783699419, now seen corresponding path program 1 times [2024-10-12 23:44:21,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:44:21,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242879286] [2024-10-12 23:44:21,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:44:21,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:44:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:44:24,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:44:24,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:44:24,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242879286] [2024-10-12 23:44:24,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242879286] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:44:24,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:44:24,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:44:24,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119669497] [2024-10-12 23:44:24,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:44:24,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:44:24,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:44:24,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:44:24,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:44:24,453 INFO L87 Difference]: Start difference. First operand 1171 states and 1748 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:25,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:44:25,059 INFO L93 Difference]: Finished difference Result 2753 states and 4114 transitions. [2024-10-12 23:44:25,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 23:44:25,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2024-10-12 23:44:25,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:44:25,066 INFO L225 Difference]: With dead ends: 2753 [2024-10-12 23:44:25,066 INFO L226 Difference]: Without dead ends: 1721 [2024-10-12 23:44:25,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:44:25,068 INFO L432 NwaCegarLoop]: 1397 mSDtfsCounter, 995 mSDsluCounter, 4146 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 5543 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 23:44:25,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 5543 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 23:44:25,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2024-10-12 23:44:25,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1171. [2024-10-12 23:44:25,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1170 states have (on average 1.4931623931623932) internal successors, (1747), 1170 states have internal predecessors, (1747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:25,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1747 transitions. [2024-10-12 23:44:25,096 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1747 transitions. Word has length 165 [2024-10-12 23:44:25,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:44:25,096 INFO L471 AbstractCegarLoop]: Abstraction has 1171 states and 1747 transitions. [2024-10-12 23:44:25,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:44:25,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1747 transitions. [2024-10-12 23:44:25,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-12 23:44:25,098 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:44:25,098 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] [2024-10-12 23:44:25,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 23:44:25,099 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:44:25,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:44:25,099 INFO L85 PathProgramCache]: Analyzing trace with hash 635725283, now seen corresponding path program 1 times [2024-10-12 23:44:25,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:44:25,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341070913] [2024-10-12 23:44:25,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:44:25,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms