./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.circular_pointer_top_w128_d64_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d64_e0.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 ff4eead42fe5c3232d9549669a622d0a23554d4f2d3afdf105ae081b78416ec8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 03:54:52,888 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 03:54:52,945 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 03:54:52,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 03:54:52,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 03:54:52,978 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 03:54:52,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 03:54:52,979 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 03:54:52,980 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 03:54:52,980 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 03:54:52,980 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 03:54:52,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 03:54:52,981 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 03:54:52,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 03:54:52,982 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 03:54:52,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 03:54:52,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 03:54:52,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 03:54:52,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 03:54:52,983 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 03:54:52,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 03:54:52,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 03:54:52,986 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 03:54:52,987 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 03:54:52,987 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 03:54:52,987 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 03:54:52,987 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 03:54:52,988 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 03:54:52,988 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 03:54:52,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:54:52,988 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 03:54:52,988 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 03:54:52,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 03:54:52,989 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 03:54:52,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 03:54:52,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 03:54:52,989 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 03:54:52,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 03:54:52,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 03:54:52,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff4eead42fe5c3232d9549669a622d0a23554d4f2d3afdf105ae081b78416ec8 [2024-10-24 03:54:53,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 03:54:53,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 03:54:53,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 03:54:53,249 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 03:54:53,250 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 03:54:53,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d64_e0.c [2024-10-24 03:54:54,636 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 03:54:54,909 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 03:54:54,909 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d64_e0.c [2024-10-24 03:54:54,933 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d32357e9/285fa2cc106548eb92ee94c3f5304d74/FLAG929f7862d [2024-10-24 03:54:54,948 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d32357e9/285fa2cc106548eb92ee94c3f5304d74 [2024-10-24 03:54:54,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 03:54:54,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 03:54:54,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 03:54:54,954 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 03:54:54,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 03:54:54,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:54:54" (1/1) ... [2024-10-24 03:54:54,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b496b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:54, skipping insertion in model container [2024-10-24 03:54:54,960 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:54:54" (1/1) ... [2024-10-24 03:54:55,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 03:54:55,235 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.circular_pointer_top_w128_d64_e0.c[1335,1348] [2024-10-24 03:54:55,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:54:55,507 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 03:54:55,516 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.circular_pointer_top_w128_d64_e0.c[1335,1348] [2024-10-24 03:54:55,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:54:55,653 INFO L204 MainTranslator]: Completed translation [2024-10-24 03:54:55,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55 WrapperNode [2024-10-24 03:54:55,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 03:54:55,655 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 03:54:55,655 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 03:54:55,655 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 03:54:55,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55" (1/1) ... [2024-10-24 03:54:55,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55" (1/1) ... [2024-10-24 03:54:56,261 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5533 [2024-10-24 03:54:56,261 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 03:54:56,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 03:54:56,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 03:54:56,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 03:54:56,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55" (1/1) ... [2024-10-24 03:54:56,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55" (1/1) ... [2024-10-24 03:54:56,391 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55" (1/1) ... [2024-10-24 03:54:56,553 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]. [2024-10-24 03:54:56,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55" (1/1) ... [2024-10-24 03:54:56,553 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55" (1/1) ... [2024-10-24 03:54:56,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55" (1/1) ... [2024-10-24 03:54:56,682 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55" (1/1) ... [2024-10-24 03:54:56,703 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55" (1/1) ... [2024-10-24 03:54:56,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55" (1/1) ... [2024-10-24 03:54:56,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 03:54:56,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 03:54:56,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 03:54:56,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 03:54:56,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55" (1/1) ... [2024-10-24 03:54:56,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:54:56,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:54:56,802 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) [2024-10-24 03:54:56,805 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 [2024-10-24 03:54:56,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 03:54:56,837 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 03:54:56,838 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 03:54:56,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 03:54:56,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 03:54:56,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 03:54:57,179 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 03:54:57,181 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 03:55:01,985 INFO L? ?]: Removed 3109 outVars from TransFormulas that were not future-live. [2024-10-24 03:55:01,986 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 03:55:02,073 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 03:55:02,075 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 03:55:02,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:55:02 BoogieIcfgContainer [2024-10-24 03:55:02,076 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 03:55:02,078 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 03:55:02,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 03:55:02,081 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 03:55:02,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:54:54" (1/3) ... [2024-10-24 03:55:02,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa1d149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:55:02, skipping insertion in model container [2024-10-24 03:55:02,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:55" (2/3) ... [2024-10-24 03:55:02,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa1d149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:55:02, skipping insertion in model container [2024-10-24 03:55:02,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:55:02" (3/3) ... [2024-10-24 03:55:02,083 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w128_d64_e0.c [2024-10-24 03:55:02,098 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 03:55:02,098 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 03:55:02,194 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 03:55:02,199 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;@6b127ded, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 03:55:02,199 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 03:55:02,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 1509 states, 1503 states have (on average 1.4990019960079841) internal successors, (2253), 1504 states have internal predecessors, (2253), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:02,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-10-24 03:55:02,238 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:02,239 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:02,240 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:02,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:02,244 INFO L85 PathProgramCache]: Analyzing trace with hash 189766823, now seen corresponding path program 1 times [2024-10-24 03:55:02,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:02,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077181850] [2024-10-24 03:55:02,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:02,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:02,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:02,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:02,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:02,807 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:02,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:02,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077181850] [2024-10-24 03:55:02,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077181850] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:02,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:02,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 03:55:02,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666457351] [2024-10-24 03:55:02,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:02,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 03:55:02,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:02,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 03:55:02,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 03:55:02,845 INFO L87 Difference]: Start difference. First operand has 1509 states, 1503 states have (on average 1.4990019960079841) internal successors, (2253), 1504 states have internal predecessors, (2253), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:55:02,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:02,989 INFO L93 Difference]: Finished difference Result 2724 states and 4082 transitions. [2024-10-24 03:55:02,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 03:55:02,996 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 340 [2024-10-24 03:55:02,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:03,013 INFO L225 Difference]: With dead ends: 2724 [2024-10-24 03:55:03,013 INFO L226 Difference]: Without dead ends: 1508 [2024-10-24 03:55:03,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 03:55:03,020 INFO L432 NwaCegarLoop]: 2255 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:03,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2255 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:55:03,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2024-10-24 03:55:03,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1508. [2024-10-24 03:55:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1508 states, 1503 states have (on average 1.4970059880239521) internal successors, (2250), 1503 states have internal predecessors, (2250), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 2256 transitions. [2024-10-24 03:55:03,095 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 2256 transitions. Word has length 340 [2024-10-24 03:55:03,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:03,096 INFO L471 AbstractCegarLoop]: Abstraction has 1508 states and 2256 transitions. [2024-10-24 03:55:03,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:55:03,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 2256 transitions. [2024-10-24 03:55:03,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-10-24 03:55:03,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:03,102 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:03,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 03:55:03,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:03,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:03,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1984797727, now seen corresponding path program 1 times [2024-10-24 03:55:03,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:03,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287196375] [2024-10-24 03:55:03,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:03,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:04,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:04,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:04,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:04,899 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:04,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:04,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287196375] [2024-10-24 03:55:04,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287196375] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:04,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:04,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:55:04,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594506154] [2024-10-24 03:55:04,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:04,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:55:04,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:04,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:55:04,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:55:04,906 INFO L87 Difference]: Start difference. First operand 1508 states and 2256 transitions. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:04,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:04,957 INFO L93 Difference]: Finished difference Result 1512 states and 2260 transitions. [2024-10-24 03:55:04,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:04,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 340 [2024-10-24 03:55:04,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:04,966 INFO L225 Difference]: With dead ends: 1512 [2024-10-24 03:55:04,966 INFO L226 Difference]: Without dead ends: 1510 [2024-10-24 03:55:04,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:55:04,968 INFO L432 NwaCegarLoop]: 2253 mSDtfsCounter, 0 mSDsluCounter, 4501 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6754 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 [2024-10-24 03:55:04,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6754 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:55:04,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2024-10-24 03:55:04,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1510. [2024-10-24 03:55:04,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1505 states have (on average 1.496345514950166) internal successors, (2252), 1505 states have internal predecessors, (2252), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:04,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2258 transitions. [2024-10-24 03:55:04,992 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2258 transitions. Word has length 340 [2024-10-24 03:55:04,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:04,995 INFO L471 AbstractCegarLoop]: Abstraction has 1510 states and 2258 transitions. [2024-10-24 03:55:04,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:04,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2258 transitions. [2024-10-24 03:55:04,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-10-24 03:55:04,998 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:04,998 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:04,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 03:55:04,999 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:04,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:04,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1397490167, now seen corresponding path program 1 times [2024-10-24 03:55:04,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:05,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671468373] [2024-10-24 03:55:05,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:05,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:05,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:05,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:05,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:05,922 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:05,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:05,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671468373] [2024-10-24 03:55:05,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671468373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:05,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:05,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:05,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453454294] [2024-10-24 03:55:05,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:05,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:05,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:05,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:05,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:05,926 INFO L87 Difference]: Start difference. First operand 1510 states and 2258 transitions. Second operand has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:06,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:06,638 INFO L93 Difference]: Finished difference Result 3770 states and 5640 transitions. [2024-10-24 03:55:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:55:06,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 341 [2024-10-24 03:55:06,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:06,643 INFO L225 Difference]: With dead ends: 3770 [2024-10-24 03:55:06,643 INFO L226 Difference]: Without dead ends: 1510 [2024-10-24 03:55:06,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:55:06,647 INFO L432 NwaCegarLoop]: 2251 mSDtfsCounter, 4786 mSDsluCounter, 4079 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4786 SdHoareTripleChecker+Valid, 6330 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:06,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4786 Valid, 6330 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:55:06,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2024-10-24 03:55:06,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1510. [2024-10-24 03:55:06,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1505 states have (on average 1.4956810631229236) internal successors, (2251), 1505 states have internal predecessors, (2251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:06,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2257 transitions. [2024-10-24 03:55:06,671 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2257 transitions. Word has length 341 [2024-10-24 03:55:06,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:06,671 INFO L471 AbstractCegarLoop]: Abstraction has 1510 states and 2257 transitions. [2024-10-24 03:55:06,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:06,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2257 transitions. [2024-10-24 03:55:06,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-10-24 03:55:06,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:06,674 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:06,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 03:55:06,675 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:06,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:06,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1929197203, now seen corresponding path program 1 times [2024-10-24 03:55:06,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:06,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796680351] [2024-10-24 03:55:06,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:06,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:07,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:07,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:07,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:07,548 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:07,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:07,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796680351] [2024-10-24 03:55:07,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796680351] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:07,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:07,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:55:07,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776211873] [2024-10-24 03:55:07,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:07,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:55:07,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:07,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:55:07,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:55:07,551 INFO L87 Difference]: Start difference. First operand 1510 states and 2257 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:07,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:07,595 INFO L93 Difference]: Finished difference Result 2729 states and 4078 transitions. [2024-10-24 03:55:07,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:07,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 342 [2024-10-24 03:55:07,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:07,600 INFO L225 Difference]: With dead ends: 2729 [2024-10-24 03:55:07,600 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:07,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:55:07,602 INFO L432 NwaCegarLoop]: 2252 mSDtfsCounter, 0 mSDsluCounter, 4496 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6748 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 [2024-10-24 03:55:07,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6748 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:55:07,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:07,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:07,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4950232249502322) internal successors, (2253), 1507 states have internal predecessors, (2253), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:07,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2259 transitions. [2024-10-24 03:55:07,621 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2259 transitions. Word has length 342 [2024-10-24 03:55:07,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:07,622 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2259 transitions. [2024-10-24 03:55:07,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:07,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2259 transitions. [2024-10-24 03:55:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-10-24 03:55:07,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:07,625 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:07,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 03:55:07,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:07,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:07,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1422392720, now seen corresponding path program 1 times [2024-10-24 03:55:07,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:07,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488317143] [2024-10-24 03:55:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:07,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:08,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:08,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:08,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:08,623 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:08,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:08,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488317143] [2024-10-24 03:55:08,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488317143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:08,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:08,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:55:08,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434565725] [2024-10-24 03:55:08,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:08,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:55:08,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:08,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:55:08,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:55:08,627 INFO L87 Difference]: Start difference. First operand 1512 states and 2259 transitions. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:08,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:08,815 INFO L93 Difference]: Finished difference Result 2731 states and 4079 transitions. [2024-10-24 03:55:08,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:08,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 343 [2024-10-24 03:55:08,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:08,820 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:08,821 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:08,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:08,824 INFO L432 NwaCegarLoop]: 2212 mSDtfsCounter, 2052 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 4426 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:08,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2052 Valid, 4426 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:55:08,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:08,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:08,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4943596549435965) internal successors, (2252), 1507 states have internal predecessors, (2252), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:08,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2258 transitions. [2024-10-24 03:55:08,852 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2258 transitions. Word has length 343 [2024-10-24 03:55:08,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:08,853 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2258 transitions. [2024-10-24 03:55:08,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2258 transitions. [2024-10-24 03:55:08,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-10-24 03:55:08,859 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:08,859 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:08,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 03:55:08,860 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:08,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:08,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1352511067, now seen corresponding path program 1 times [2024-10-24 03:55:08,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:08,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478577175] [2024-10-24 03:55:08,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:08,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:09,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:09,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:09,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:09,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:09,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478577175] [2024-10-24 03:55:09,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478577175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:09,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:09,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:09,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760219707] [2024-10-24 03:55:09,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:09,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:09,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:09,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:09,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:09,689 INFO L87 Difference]: Start difference. First operand 1512 states and 2258 transitions. Second operand has 5 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:09,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:09,884 INFO L93 Difference]: Finished difference Result 2731 states and 4077 transitions. [2024-10-24 03:55:09,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:09,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 344 [2024-10-24 03:55:09,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:09,890 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:09,890 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:09,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:09,894 INFO L432 NwaCegarLoop]: 2212 mSDtfsCounter, 4289 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4292 SdHoareTripleChecker+Valid, 4426 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:09,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4292 Valid, 4426 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:55:09,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:09,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:09,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.493696084936961) internal successors, (2251), 1507 states have internal predecessors, (2251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:09,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2257 transitions. [2024-10-24 03:55:09,923 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2257 transitions. Word has length 344 [2024-10-24 03:55:09,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:09,923 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2257 transitions. [2024-10-24 03:55:09,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:09,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2257 transitions. [2024-10-24 03:55:09,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-10-24 03:55:09,927 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:09,928 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:09,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 03:55:09,928 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:09,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:09,929 INFO L85 PathProgramCache]: Analyzing trace with hash -649362615, now seen corresponding path program 1 times [2024-10-24 03:55:09,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:09,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712637104] [2024-10-24 03:55:09,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:09,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:10,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:10,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:10,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:10,795 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:10,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:10,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712637104] [2024-10-24 03:55:10,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712637104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:10,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:10,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:10,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377997012] [2024-10-24 03:55:10,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:10,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:10,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:10,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:10,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:10,798 INFO L87 Difference]: Start difference. First operand 1512 states and 2257 transitions. Second operand has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:10,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:10,919 INFO L93 Difference]: Finished difference Result 2731 states and 4075 transitions. [2024-10-24 03:55:10,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:10,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 345 [2024-10-24 03:55:10,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:10,924 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:10,925 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:10,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:10,927 INFO L432 NwaCegarLoop]: 2212 mSDtfsCounter, 2239 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 4432 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:10,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2242 Valid, 4432 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:55:10,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:10,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:10,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4930325149303252) internal successors, (2250), 1507 states have internal predecessors, (2250), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:10,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2256 transitions. [2024-10-24 03:55:10,955 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2256 transitions. Word has length 345 [2024-10-24 03:55:10,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:10,955 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2256 transitions. [2024-10-24 03:55:10,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:10,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2256 transitions. [2024-10-24 03:55:10,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-10-24 03:55:10,960 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:10,960 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:10,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 03:55:10,960 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:10,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:10,961 INFO L85 PathProgramCache]: Analyzing trace with hash 221600414, now seen corresponding path program 1 times [2024-10-24 03:55:10,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:10,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999463629] [2024-10-24 03:55:10,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:10,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:11,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:11,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:11,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:11,650 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:11,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:11,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999463629] [2024-10-24 03:55:11,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999463629] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:11,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:11,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:11,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490276136] [2024-10-24 03:55:11,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:11,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:11,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:11,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:11,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:11,653 INFO L87 Difference]: Start difference. First operand 1512 states and 2256 transitions. Second operand has 5 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:11,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:11,766 INFO L93 Difference]: Finished difference Result 2731 states and 4073 transitions. [2024-10-24 03:55:11,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:11,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 346 [2024-10-24 03:55:11,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:11,771 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:11,771 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:11,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:11,776 INFO L432 NwaCegarLoop]: 2212 mSDtfsCounter, 4273 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4276 SdHoareTripleChecker+Valid, 4426 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:11,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4276 Valid, 4426 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:55:11,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:11,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:11,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4923689449236894) internal successors, (2249), 1507 states have internal predecessors, (2249), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:11,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2255 transitions. [2024-10-24 03:55:11,804 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2255 transitions. Word has length 346 [2024-10-24 03:55:11,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:11,804 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2255 transitions. [2024-10-24 03:55:11,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:11,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2255 transitions. [2024-10-24 03:55:11,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-10-24 03:55:11,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:11,808 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:11,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 03:55:11,808 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:11,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:11,809 INFO L85 PathProgramCache]: Analyzing trace with hash 924847266, now seen corresponding path program 1 times [2024-10-24 03:55:11,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:11,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240916371] [2024-10-24 03:55:11,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:11,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:12,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:12,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:12,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:12,680 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:12,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:12,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240916371] [2024-10-24 03:55:12,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240916371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:12,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:12,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:55:12,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716339051] [2024-10-24 03:55:12,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:12,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:55:12,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:12,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:55:12,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:55:12,683 INFO L87 Difference]: Start difference. First operand 1512 states and 2255 transitions. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:13,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:13,156 INFO L93 Difference]: Finished difference Result 2731 states and 4071 transitions. [2024-10-24 03:55:13,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:13,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 347 [2024-10-24 03:55:13,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:13,162 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:13,163 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:13,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:13,166 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 1926 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1926 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:13,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1926 Valid, 3858 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:13,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:13,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:13,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4917053749170537) internal successors, (2248), 1507 states have internal predecessors, (2248), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:13,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2254 transitions. [2024-10-24 03:55:13,193 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2254 transitions. Word has length 347 [2024-10-24 03:55:13,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:13,194 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2254 transitions. [2024-10-24 03:55:13,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:13,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2254 transitions. [2024-10-24 03:55:13,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-10-24 03:55:13,198 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:13,199 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:13,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 03:55:13,199 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:13,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:13,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1729084054, now seen corresponding path program 1 times [2024-10-24 03:55:13,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:13,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274490500] [2024-10-24 03:55:13,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:13,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:13,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:13,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:13,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:13,883 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:13,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:13,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274490500] [2024-10-24 03:55:13,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274490500] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:13,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:13,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:13,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426811601] [2024-10-24 03:55:13,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:13,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:13,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:13,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:13,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:13,886 INFO L87 Difference]: Start difference. First operand 1512 states and 2254 transitions. Second operand has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:14,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:14,311 INFO L93 Difference]: Finished difference Result 2793 states and 4161 transitions. [2024-10-24 03:55:14,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:55:14,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 348 [2024-10-24 03:55:14,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:14,316 INFO L225 Difference]: With dead ends: 2793 [2024-10-24 03:55:14,316 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:14,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:55:14,318 INFO L432 NwaCegarLoop]: 2212 mSDtfsCounter, 2049 mSDsluCounter, 4145 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 6357 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:14,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2049 Valid, 6357 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:14,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:14,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:14,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4910418049104182) internal successors, (2247), 1507 states have internal predecessors, (2247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:14,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2253 transitions. [2024-10-24 03:55:14,338 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2253 transitions. Word has length 348 [2024-10-24 03:55:14,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:14,339 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2253 transitions. [2024-10-24 03:55:14,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:14,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2253 transitions. [2024-10-24 03:55:14,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-10-24 03:55:14,341 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:14,341 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:14,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 03:55:14,341 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:14,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:14,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1549587049, now seen corresponding path program 1 times [2024-10-24 03:55:14,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:14,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754509856] [2024-10-24 03:55:14,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:14,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:14,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:14,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:14,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:14,865 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:14,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:14,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754509856] [2024-10-24 03:55:14,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754509856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:14,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:14,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:14,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849280294] [2024-10-24 03:55:14,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:14,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:14,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:14,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:14,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:14,867 INFO L87 Difference]: Start difference. First operand 1512 states and 2253 transitions. Second operand has 5 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:15,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:15,305 INFO L93 Difference]: Finished difference Result 2731 states and 4067 transitions. [2024-10-24 03:55:15,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:15,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 349 [2024-10-24 03:55:15,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:15,310 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:15,310 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:15,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:15,312 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2238 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:15,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2241 Valid, 3864 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:15,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:15,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:15,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4903782349037824) internal successors, (2246), 1507 states have internal predecessors, (2246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:15,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2252 transitions. [2024-10-24 03:55:15,333 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2252 transitions. Word has length 349 [2024-10-24 03:55:15,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:15,333 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2252 transitions. [2024-10-24 03:55:15,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:15,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2252 transitions. [2024-10-24 03:55:15,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-10-24 03:55:15,335 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:15,336 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:15,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 03:55:15,336 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:15,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:15,336 INFO L85 PathProgramCache]: Analyzing trace with hash 798180061, now seen corresponding path program 1 times [2024-10-24 03:55:15,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:15,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058799315] [2024-10-24 03:55:15,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:15,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:15,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:15,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:15,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:15,961 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:15,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:15,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058799315] [2024-10-24 03:55:15,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058799315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:15,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:15,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:15,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696115340] [2024-10-24 03:55:15,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:15,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:15,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:15,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:15,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:15,963 INFO L87 Difference]: Start difference. First operand 1512 states and 2252 transitions. Second operand has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:16,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:16,452 INFO L93 Difference]: Finished difference Result 2731 states and 4065 transitions. [2024-10-24 03:55:16,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:16,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 350 [2024-10-24 03:55:16,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:16,461 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:16,461 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:16,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:16,468 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4211 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4214 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:16,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4214 Valid, 3858 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:16,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:16,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:16,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4897146648971467) internal successors, (2245), 1507 states have internal predecessors, (2245), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:16,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2251 transitions. [2024-10-24 03:55:16,487 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2251 transitions. Word has length 350 [2024-10-24 03:55:16,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:16,488 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2251 transitions. [2024-10-24 03:55:16,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:16,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2251 transitions. [2024-10-24 03:55:16,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-10-24 03:55:16,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:16,490 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:16,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 03:55:16,490 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:16,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:16,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1462518640, now seen corresponding path program 1 times [2024-10-24 03:55:16,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:16,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526864530] [2024-10-24 03:55:16,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:16,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:17,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:17,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:17,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:17,148 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:17,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:17,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526864530] [2024-10-24 03:55:17,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526864530] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:17,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:17,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:17,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183956601] [2024-10-24 03:55:17,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:17,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:17,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:17,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:17,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:17,154 INFO L87 Difference]: Start difference. First operand 1512 states and 2251 transitions. Second operand has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:17,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:17,638 INFO L93 Difference]: Finished difference Result 2731 states and 4063 transitions. [2024-10-24 03:55:17,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:17,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 351 [2024-10-24 03:55:17,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:17,643 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:17,643 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:17,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:17,645 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2230 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2233 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:17,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2233 Valid, 3864 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:17,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:17,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:17,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.489051094890511) internal successors, (2244), 1507 states have internal predecessors, (2244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:17,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2250 transitions. [2024-10-24 03:55:17,667 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2250 transitions. Word has length 351 [2024-10-24 03:55:17,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:17,667 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2250 transitions. [2024-10-24 03:55:17,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:17,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2250 transitions. [2024-10-24 03:55:17,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-10-24 03:55:17,669 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:17,669 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:17,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 03:55:17,670 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:17,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:17,670 INFO L85 PathProgramCache]: Analyzing trace with hash 21762724, now seen corresponding path program 1 times [2024-10-24 03:55:17,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:17,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186415365] [2024-10-24 03:55:17,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:17,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:18,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:18,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:18,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:18,244 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:18,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:18,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186415365] [2024-10-24 03:55:18,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186415365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:18,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:18,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:18,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552075879] [2024-10-24 03:55:18,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:18,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:18,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:18,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:18,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:18,247 INFO L87 Difference]: Start difference. First operand 1512 states and 2250 transitions. Second operand has 5 states, 5 states have (on average 68.0) internal successors, (340), 5 states have internal predecessors, (340), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:18,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:18,679 INFO L93 Difference]: Finished difference Result 2731 states and 4061 transitions. [2024-10-24 03:55:18,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:18,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.0) internal successors, (340), 5 states have internal predecessors, (340), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 352 [2024-10-24 03:55:18,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:18,684 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:18,684 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:18,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:18,686 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2226 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:18,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2229 Valid, 3864 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:18,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:18,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:18,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4883875248838752) internal successors, (2243), 1507 states have internal predecessors, (2243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:18,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2249 transitions. [2024-10-24 03:55:18,707 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2249 transitions. Word has length 352 [2024-10-24 03:55:18,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:18,707 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2249 transitions. [2024-10-24 03:55:18,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.0) internal successors, (340), 5 states have internal predecessors, (340), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:18,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2249 transitions. [2024-10-24 03:55:18,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-10-24 03:55:18,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:18,710 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:18,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 03:55:18,710 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:18,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:18,711 INFO L85 PathProgramCache]: Analyzing trace with hash -165853641, now seen corresponding path program 1 times [2024-10-24 03:55:18,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:18,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673179122] [2024-10-24 03:55:18,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:18,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:19,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:19,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:19,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:19,975 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:19,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:19,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673179122] [2024-10-24 03:55:19,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673179122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:19,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:19,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:19,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991203516] [2024-10-24 03:55:19,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:19,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:19,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:19,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:19,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:19,982 INFO L87 Difference]: Start difference. First operand 1512 states and 2249 transitions. Second operand has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:20,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:20,487 INFO L93 Difference]: Finished difference Result 2731 states and 4059 transitions. [2024-10-24 03:55:20,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:20,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 353 [2024-10-24 03:55:20,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:20,493 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:20,493 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:20,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:20,495 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2222 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2225 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:20,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2225 Valid, 3864 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:20,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:20,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:20,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4877239548772396) internal successors, (2242), 1507 states have internal predecessors, (2242), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:20,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2248 transitions. [2024-10-24 03:55:20,532 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2248 transitions. Word has length 353 [2024-10-24 03:55:20,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:20,533 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2248 transitions. [2024-10-24 03:55:20,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:20,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2248 transitions. [2024-10-24 03:55:20,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-10-24 03:55:20,540 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:20,540 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:20,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 03:55:20,541 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:20,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:20,541 INFO L85 PathProgramCache]: Analyzing trace with hash 959900139, now seen corresponding path program 1 times [2024-10-24 03:55:20,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:20,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962963092] [2024-10-24 03:55:20,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:20,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:21,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:21,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:21,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:21,387 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:21,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:21,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962963092] [2024-10-24 03:55:21,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962963092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:21,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:21,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:21,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882544738] [2024-10-24 03:55:21,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:21,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:21,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:21,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:21,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:21,392 INFO L87 Difference]: Start difference. First operand 1512 states and 2248 transitions. Second operand has 5 states, 5 states have (on average 68.4) internal successors, (342), 5 states have internal predecessors, (342), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:21,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:21,847 INFO L93 Difference]: Finished difference Result 2731 states and 4057 transitions. [2024-10-24 03:55:21,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:21,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.4) internal successors, (342), 5 states have internal predecessors, (342), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 354 [2024-10-24 03:55:21,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:21,852 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:21,852 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:21,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:21,854 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4179 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4182 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:21,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4182 Valid, 3858 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:21,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:21,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:21,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4870603848706039) internal successors, (2241), 1507 states have internal predecessors, (2241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:21,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2247 transitions. [2024-10-24 03:55:21,879 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2247 transitions. Word has length 354 [2024-10-24 03:55:21,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:21,880 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2247 transitions. [2024-10-24 03:55:21,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.4) internal successors, (342), 5 states have internal predecessors, (342), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:21,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2247 transitions. [2024-10-24 03:55:21,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-10-24 03:55:21,883 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:21,883 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:21,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 03:55:21,883 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:21,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:21,884 INFO L85 PathProgramCache]: Analyzing trace with hash 48770910, now seen corresponding path program 1 times [2024-10-24 03:55:21,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:21,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795238836] [2024-10-24 03:55:21,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:21,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:22,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:22,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:22,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:22,575 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:22,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:22,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795238836] [2024-10-24 03:55:22,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795238836] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:22,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:22,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:22,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129051721] [2024-10-24 03:55:22,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:22,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:22,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:22,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:22,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:22,578 INFO L87 Difference]: Start difference. First operand 1512 states and 2247 transitions. Second operand has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:23,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:23,020 INFO L93 Difference]: Finished difference Result 2731 states and 4055 transitions. [2024-10-24 03:55:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:23,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 355 [2024-10-24 03:55:23,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:23,026 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:23,033 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:23,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:23,035 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2214 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2217 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:23,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2217 Valid, 3864 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:23,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:23,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:23,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4863968148639681) internal successors, (2240), 1507 states have internal predecessors, (2240), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:23,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2246 transitions. [2024-10-24 03:55:23,073 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2246 transitions. Word has length 355 [2024-10-24 03:55:23,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:23,074 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2246 transitions. [2024-10-24 03:55:23,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:23,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2246 transitions. [2024-10-24 03:55:23,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-10-24 03:55:23,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:23,078 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:23,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 03:55:23,079 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:23,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:23,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1500547250, now seen corresponding path program 1 times [2024-10-24 03:55:23,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:23,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781945429] [2024-10-24 03:55:23,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:23,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:23,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:23,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:23,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:23,643 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:23,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:23,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781945429] [2024-10-24 03:55:23,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781945429] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:23,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:23,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:23,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623246785] [2024-10-24 03:55:23,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:23,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:23,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:23,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:23,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:23,645 INFO L87 Difference]: Start difference. First operand 1512 states and 2246 transitions. Second operand has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:23,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:23,989 INFO L93 Difference]: Finished difference Result 2731 states and 4053 transitions. [2024-10-24 03:55:23,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:23,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 356 [2024-10-24 03:55:23,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:23,994 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:23,994 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:23,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:23,996 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2210 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:23,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2213 Valid, 3864 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:55:23,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:24,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:24,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4857332448573324) internal successors, (2239), 1507 states have internal predecessors, (2239), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:24,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2245 transitions. [2024-10-24 03:55:24,015 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2245 transitions. Word has length 356 [2024-10-24 03:55:24,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:24,016 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2245 transitions. [2024-10-24 03:55:24,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:24,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2245 transitions. [2024-10-24 03:55:24,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-10-24 03:55:24,018 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:24,018 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:24,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 03:55:24,018 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:24,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:24,019 INFO L85 PathProgramCache]: Analyzing trace with hash 579024901, now seen corresponding path program 1 times [2024-10-24 03:55:24,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:24,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119575923] [2024-10-24 03:55:24,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:24,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:24,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:24,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:24,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:24,527 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:24,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:24,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119575923] [2024-10-24 03:55:24,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119575923] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:24,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:24,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:24,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489627393] [2024-10-24 03:55:24,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:24,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:24,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:24,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:24,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:24,530 INFO L87 Difference]: Start difference. First operand 1512 states and 2245 transitions. Second operand has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:24,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:24,870 INFO L93 Difference]: Finished difference Result 2731 states and 4051 transitions. [2024-10-24 03:55:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:24,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 357 [2024-10-24 03:55:24,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:24,873 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:24,873 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:24,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:24,880 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2206 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:24,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2209 Valid, 3864 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:55:24,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:24,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:24,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4850696748506969) internal successors, (2238), 1507 states have internal predecessors, (2238), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:24,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2244 transitions. [2024-10-24 03:55:24,895 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2244 transitions. Word has length 357 [2024-10-24 03:55:24,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:24,895 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2244 transitions. [2024-10-24 03:55:24,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:24,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2244 transitions. [2024-10-24 03:55:24,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-10-24 03:55:24,897 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:24,897 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:24,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 03:55:24,898 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:24,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:24,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1765125881, now seen corresponding path program 1 times [2024-10-24 03:55:24,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:24,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539094766] [2024-10-24 03:55:24,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:24,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:25,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:25,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:25,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:25,457 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:25,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:25,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539094766] [2024-10-24 03:55:25,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539094766] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:25,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:25,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:25,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058857364] [2024-10-24 03:55:25,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:25,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:25,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:25,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:25,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:25,460 INFO L87 Difference]: Start difference. First operand 1512 states and 2244 transitions. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:26,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:26,207 INFO L93 Difference]: Finished difference Result 2731 states and 4049 transitions. [2024-10-24 03:55:26,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:26,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 358 [2024-10-24 03:55:26,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:26,211 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:26,211 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:26,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:26,213 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4147 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4150 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:26,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4150 Valid, 3858 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 03:55:26,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:26,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:26,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.484406104844061) internal successors, (2237), 1507 states have internal predecessors, (2237), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2243 transitions. [2024-10-24 03:55:26,249 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2243 transitions. Word has length 358 [2024-10-24 03:55:26,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:26,249 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2243 transitions. [2024-10-24 03:55:26,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:26,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2243 transitions. [2024-10-24 03:55:26,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-10-24 03:55:26,252 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:26,252 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:26,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 03:55:26,253 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:26,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:26,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1126358996, now seen corresponding path program 1 times [2024-10-24 03:55:26,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:26,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819520737] [2024-10-24 03:55:26,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:26,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:26,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:26,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:26,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:26,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:26,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819520737] [2024-10-24 03:55:26,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819520737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:26,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:26,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:26,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775990646] [2024-10-24 03:55:26,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:26,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:26,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:26,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:26,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:26,774 INFO L87 Difference]: Start difference. First operand 1512 states and 2243 transitions. Second operand has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:27,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:27,188 INFO L93 Difference]: Finished difference Result 2731 states and 4047 transitions. [2024-10-24 03:55:27,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:27,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 359 [2024-10-24 03:55:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:27,191 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:27,191 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:27,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:27,194 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4139 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4142 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:27,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4142 Valid, 3858 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:27,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:27,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:27,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4837425348374254) internal successors, (2236), 1507 states have internal predecessors, (2236), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:27,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2242 transitions. [2024-10-24 03:55:27,224 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2242 transitions. Word has length 359 [2024-10-24 03:55:27,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:27,225 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2242 transitions. [2024-10-24 03:55:27,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2242 transitions. [2024-10-24 03:55:27,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-10-24 03:55:27,228 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:27,228 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:27,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 03:55:27,228 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:27,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:27,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1424170176, now seen corresponding path program 1 times [2024-10-24 03:55:27,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:27,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897875820] [2024-10-24 03:55:27,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:27,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:27,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:27,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:27,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:27,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:27,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897875820] [2024-10-24 03:55:27,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897875820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:27,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:27,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:27,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952372732] [2024-10-24 03:55:27,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:27,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:27,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:27,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:27,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:27,757 INFO L87 Difference]: Start difference. First operand 1512 states and 2242 transitions. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:28,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:28,153 INFO L93 Difference]: Finished difference Result 2731 states and 4045 transitions. [2024-10-24 03:55:28,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:28,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 360 [2024-10-24 03:55:28,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:28,155 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:28,155 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:28,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:28,157 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4131 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4134 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:28,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4134 Valid, 3858 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:28,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:28,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:28,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4830789648307896) internal successors, (2235), 1507 states have internal predecessors, (2235), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:28,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2241 transitions. [2024-10-24 03:55:28,172 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2241 transitions. Word has length 360 [2024-10-24 03:55:28,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:28,172 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2241 transitions. [2024-10-24 03:55:28,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:28,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2241 transitions. [2024-10-24 03:55:28,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-10-24 03:55:28,174 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:28,174 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:28,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 03:55:28,174 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:28,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:28,175 INFO L85 PathProgramCache]: Analyzing trace with hash -830167085, now seen corresponding path program 1 times [2024-10-24 03:55:28,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:28,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883185984] [2024-10-24 03:55:28,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:28,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:28,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:28,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:28,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:28,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:28,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883185984] [2024-10-24 03:55:28,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883185984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:28,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:28,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:28,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597414592] [2024-10-24 03:55:28,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:28,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:28,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:28,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:28,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:28,658 INFO L87 Difference]: Start difference. First operand 1512 states and 2241 transitions. Second operand has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:29,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:29,055 INFO L93 Difference]: Finished difference Result 2731 states and 4043 transitions. [2024-10-24 03:55:29,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:29,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 361 [2024-10-24 03:55:29,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:29,058 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:29,058 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:29,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:29,060 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4123 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4126 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:29,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4126 Valid, 3858 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:29,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:29,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:29,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4824153948241539) internal successors, (2234), 1507 states have internal predecessors, (2234), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:29,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2240 transitions. [2024-10-24 03:55:29,076 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2240 transitions. Word has length 361 [2024-10-24 03:55:29,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:29,076 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2240 transitions. [2024-10-24 03:55:29,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:29,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2240 transitions. [2024-10-24 03:55:29,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-10-24 03:55:29,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:29,078 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:29,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 03:55:29,078 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:29,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:29,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1307939335, now seen corresponding path program 1 times [2024-10-24 03:55:29,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:29,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480304516] [2024-10-24 03:55:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:29,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:29,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:29,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:29,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:29,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:29,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480304516] [2024-10-24 03:55:29,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480304516] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:29,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:29,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:29,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899884254] [2024-10-24 03:55:29,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:29,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:29,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:29,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:29,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:29,576 INFO L87 Difference]: Start difference. First operand 1512 states and 2240 transitions. Second operand has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:29,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:29,971 INFO L93 Difference]: Finished difference Result 2731 states and 4041 transitions. [2024-10-24 03:55:29,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:29,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 362 [2024-10-24 03:55:29,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:29,974 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:29,974 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:29,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:29,976 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4115 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4118 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:29,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4118 Valid, 3858 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:29,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:29,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:29,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4817518248175183) internal successors, (2233), 1507 states have internal predecessors, (2233), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:29,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2239 transitions. [2024-10-24 03:55:29,991 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2239 transitions. Word has length 362 [2024-10-24 03:55:29,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:29,992 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2239 transitions. [2024-10-24 03:55:29,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:29,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2239 transitions. [2024-10-24 03:55:29,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-10-24 03:55:29,994 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:29,994 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:29,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 03:55:29,994 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:29,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:29,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1755877114, now seen corresponding path program 1 times [2024-10-24 03:55:29,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:29,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526851796] [2024-10-24 03:55:29,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:29,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:30,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:30,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:30,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:30,489 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:30,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:30,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526851796] [2024-10-24 03:55:30,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526851796] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:30,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:30,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:30,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456708215] [2024-10-24 03:55:30,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:30,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:30,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:30,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:30,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:30,492 INFO L87 Difference]: Start difference. First operand 1512 states and 2239 transitions. Second operand has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:30,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:30,891 INFO L93 Difference]: Finished difference Result 2731 states and 4039 transitions. [2024-10-24 03:55:30,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:30,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 363 [2024-10-24 03:55:30,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:30,894 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:30,894 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:30,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:30,896 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4107 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4110 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:30,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4110 Valid, 3858 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:30,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:30,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:30,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4810882548108826) internal successors, (2232), 1507 states have internal predecessors, (2232), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:30,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2238 transitions. [2024-10-24 03:55:30,912 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2238 transitions. Word has length 363 [2024-10-24 03:55:30,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:30,913 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2238 transitions. [2024-10-24 03:55:30,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:30,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2238 transitions. [2024-10-24 03:55:30,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-10-24 03:55:30,915 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:30,915 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:30,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 03:55:30,915 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:30,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:30,915 INFO L85 PathProgramCache]: Analyzing trace with hash 722063054, now seen corresponding path program 1 times [2024-10-24 03:55:30,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:30,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028183166] [2024-10-24 03:55:30,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:30,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:31,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:31,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:31,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:31,526 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:31,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:31,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028183166] [2024-10-24 03:55:31,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028183166] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:31,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:31,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:31,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643555746] [2024-10-24 03:55:31,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:31,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:31,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:31,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:31,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:31,532 INFO L87 Difference]: Start difference. First operand 1512 states and 2238 transitions. Second operand has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:31,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:31,911 INFO L93 Difference]: Finished difference Result 2731 states and 4037 transitions. [2024-10-24 03:55:31,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:31,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 364 [2024-10-24 03:55:31,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:31,914 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:31,914 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:31,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:31,915 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4099 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4102 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:31,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4102 Valid, 3858 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:55:31,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:31,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:31,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4804246848042468) internal successors, (2231), 1507 states have internal predecessors, (2231), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:31,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2237 transitions. [2024-10-24 03:55:31,931 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2237 transitions. Word has length 364 [2024-10-24 03:55:31,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:31,931 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2237 transitions. [2024-10-24 03:55:31,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:31,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2237 transitions. [2024-10-24 03:55:31,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-10-24 03:55:31,933 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:31,933 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:31,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 03:55:31,933 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:31,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:31,934 INFO L85 PathProgramCache]: Analyzing trace with hash 823629217, now seen corresponding path program 1 times [2024-10-24 03:55:31,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:31,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546192287] [2024-10-24 03:55:31,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:31,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:32,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:32,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:32,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:32,454 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:32,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:32,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546192287] [2024-10-24 03:55:32,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546192287] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:32,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:32,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:32,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890409898] [2024-10-24 03:55:32,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:32,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:32,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:32,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:32,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:32,456 INFO L87 Difference]: Start difference. First operand 1512 states and 2237 transitions. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:32,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:32,852 INFO L93 Difference]: Finished difference Result 2731 states and 4035 transitions. [2024-10-24 03:55:32,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:32,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 365 [2024-10-24 03:55:32,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:32,855 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:32,855 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:32,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:32,856 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2174 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2177 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:32,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2177 Valid, 3864 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:32,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:32,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:32,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.479761114797611) internal successors, (2230), 1507 states have internal predecessors, (2230), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:32,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2236 transitions. [2024-10-24 03:55:32,871 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2236 transitions. Word has length 365 [2024-10-24 03:55:32,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:32,872 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2236 transitions. [2024-10-24 03:55:32,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:32,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2236 transitions. [2024-10-24 03:55:32,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-10-24 03:55:32,873 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:32,874 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:32,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 03:55:32,874 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:32,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:32,874 INFO L85 PathProgramCache]: Analyzing trace with hash -941845739, now seen corresponding path program 1 times [2024-10-24 03:55:32,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:32,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013243260] [2024-10-24 03:55:32,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:32,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:33,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:33,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:33,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:33,376 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:33,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:33,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013243260] [2024-10-24 03:55:33,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013243260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:33,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:33,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:33,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728426288] [2024-10-24 03:55:33,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:33,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:33,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:33,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:33,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:33,379 INFO L87 Difference]: Start difference. First operand 1512 states and 2236 transitions. Second operand has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:33,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:33,780 INFO L93 Difference]: Finished difference Result 2731 states and 4033 transitions. [2024-10-24 03:55:33,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:33,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 366 [2024-10-24 03:55:33,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:33,784 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:33,784 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:33,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:33,786 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4083 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4086 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:33,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4086 Valid, 3858 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:33,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:33,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:33,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4790975447909755) internal successors, (2229), 1507 states have internal predecessors, (2229), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:33,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2235 transitions. [2024-10-24 03:55:33,804 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2235 transitions. Word has length 366 [2024-10-24 03:55:33,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:33,805 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2235 transitions. [2024-10-24 03:55:33,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:33,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2235 transitions. [2024-10-24 03:55:33,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-10-24 03:55:33,806 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:33,807 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:33,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 03:55:33,807 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:33,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:33,807 INFO L85 PathProgramCache]: Analyzing trace with hash -499090488, now seen corresponding path program 1 times [2024-10-24 03:55:33,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:33,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537931772] [2024-10-24 03:55:33,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:33,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:34,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:34,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:34,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:34,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:34,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:34,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537931772] [2024-10-24 03:55:34,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537931772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:34,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:34,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:34,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078721626] [2024-10-24 03:55:34,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:34,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:34,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:34,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:34,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:34,343 INFO L87 Difference]: Start difference. First operand 1512 states and 2235 transitions. Second operand has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:34,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:34,747 INFO L93 Difference]: Finished difference Result 2731 states and 4031 transitions. [2024-10-24 03:55:34,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:34,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 367 [2024-10-24 03:55:34,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:34,750 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:34,750 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:34,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:34,751 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4075 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4078 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:34,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4078 Valid, 3858 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:34,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:34,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:34,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4784339747843398) internal successors, (2228), 1507 states have internal predecessors, (2228), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:34,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2234 transitions. [2024-10-24 03:55:34,765 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2234 transitions. Word has length 367 [2024-10-24 03:55:34,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:34,765 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2234 transitions. [2024-10-24 03:55:34,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:34,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2234 transitions. [2024-10-24 03:55:34,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-10-24 03:55:34,767 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:34,767 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:34,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 03:55:34,767 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:34,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:34,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1699389148, now seen corresponding path program 1 times [2024-10-24 03:55:34,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:34,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633219050] [2024-10-24 03:55:34,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:34,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:35,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:35,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:35,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:35,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:35,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633219050] [2024-10-24 03:55:35,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633219050] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:35,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:35,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:35,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903247968] [2024-10-24 03:55:35,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:35,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:35,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:35,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:35,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:35,349 INFO L87 Difference]: Start difference. First operand 1512 states and 2234 transitions. Second operand has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:35,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:35,734 INFO L93 Difference]: Finished difference Result 2731 states and 4029 transitions. [2024-10-24 03:55:35,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:35,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 368 [2024-10-24 03:55:35,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:35,737 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:35,737 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:35,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:35,739 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2162 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:35,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2165 Valid, 3864 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:35,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:35,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:35,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.477770404777704) internal successors, (2227), 1507 states have internal predecessors, (2227), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:35,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2233 transitions. [2024-10-24 03:55:35,752 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2233 transitions. Word has length 368 [2024-10-24 03:55:35,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:35,752 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2233 transitions. [2024-10-24 03:55:35,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:35,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2233 transitions. [2024-10-24 03:55:35,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-10-24 03:55:35,754 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:35,754 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:35,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 03:55:35,755 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:35,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:35,755 INFO L85 PathProgramCache]: Analyzing trace with hash -885915281, now seen corresponding path program 1 times [2024-10-24 03:55:35,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:35,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556969499] [2024-10-24 03:55:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:35,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:36,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:36,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:36,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:36,269 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:36,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:36,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556969499] [2024-10-24 03:55:36,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556969499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:36,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:36,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:36,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257555303] [2024-10-24 03:55:36,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:36,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:36,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:36,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:36,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:36,271 INFO L87 Difference]: Start difference. First operand 1512 states and 2233 transitions. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:36,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:36,657 INFO L93 Difference]: Finished difference Result 2731 states and 4027 transitions. [2024-10-24 03:55:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:36,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 369 [2024-10-24 03:55:36,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:36,660 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:36,660 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:36,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:36,662 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2158 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:36,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 3864 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:36,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:36,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:36,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4771068347710683) internal successors, (2226), 1507 states have internal predecessors, (2226), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:36,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2232 transitions. [2024-10-24 03:55:36,675 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2232 transitions. Word has length 369 [2024-10-24 03:55:36,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:36,676 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2232 transitions. [2024-10-24 03:55:36,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:36,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2232 transitions. [2024-10-24 03:55:36,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2024-10-24 03:55:36,677 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:36,678 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:36,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 03:55:36,678 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:36,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:36,679 INFO L85 PathProgramCache]: Analyzing trace with hash 156283427, now seen corresponding path program 1 times [2024-10-24 03:55:36,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:36,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640157868] [2024-10-24 03:55:36,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:36,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:37,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:37,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:37,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:37,188 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:37,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:37,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640157868] [2024-10-24 03:55:37,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640157868] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:37,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:37,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:37,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981664658] [2024-10-24 03:55:37,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:37,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:37,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:37,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:37,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:37,190 INFO L87 Difference]: Start difference. First operand 1512 states and 2232 transitions. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:37,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:37,571 INFO L93 Difference]: Finished difference Result 2731 states and 4025 transitions. [2024-10-24 03:55:37,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:37,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 370 [2024-10-24 03:55:37,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:37,574 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:37,574 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:37,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:37,576 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2154 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2157 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:37,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2157 Valid, 3864 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:37,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:37,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:37,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4764432647644326) internal successors, (2225), 1507 states have internal predecessors, (2225), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:37,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2231 transitions. [2024-10-24 03:55:37,590 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2231 transitions. Word has length 370 [2024-10-24 03:55:37,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:37,591 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2231 transitions. [2024-10-24 03:55:37,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:37,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2231 transitions. [2024-10-24 03:55:37,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2024-10-24 03:55:37,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:37,593 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:37,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 03:55:37,593 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:37,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:37,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1335551638, now seen corresponding path program 1 times [2024-10-24 03:55:37,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:37,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046739631] [2024-10-24 03:55:37,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:37,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:38,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:38,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:38,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:38,130 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:38,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:38,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046739631] [2024-10-24 03:55:38,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046739631] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:38,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:38,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:38,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580272763] [2024-10-24 03:55:38,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:38,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:38,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:38,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:38,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:38,132 INFO L87 Difference]: Start difference. First operand 1512 states and 2231 transitions. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:38,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:38,522 INFO L93 Difference]: Finished difference Result 2731 states and 4023 transitions. [2024-10-24 03:55:38,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:38,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 371 [2024-10-24 03:55:38,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:38,526 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:38,526 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:38,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:38,529 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2150 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2153 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:38,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2153 Valid, 3864 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:38,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:38,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:38,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.475779694757797) internal successors, (2224), 1507 states have internal predecessors, (2224), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:38,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2230 transitions. [2024-10-24 03:55:38,542 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2230 transitions. Word has length 371 [2024-10-24 03:55:38,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:38,543 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2230 transitions. [2024-10-24 03:55:38,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:38,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2230 transitions. [2024-10-24 03:55:38,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-10-24 03:55:38,544 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:38,544 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:38,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 03:55:38,545 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:38,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:38,545 INFO L85 PathProgramCache]: Analyzing trace with hash -552891158, now seen corresponding path program 1 times [2024-10-24 03:55:38,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:38,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021713482] [2024-10-24 03:55:38,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:38,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:39,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:39,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:39,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:39,116 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:39,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:39,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021713482] [2024-10-24 03:55:39,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021713482] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:39,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:39,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:39,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005627966] [2024-10-24 03:55:39,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:39,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:39,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:39,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:39,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:39,118 INFO L87 Difference]: Start difference. First operand 1512 states and 2230 transitions. Second operand has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:39,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:39,514 INFO L93 Difference]: Finished difference Result 2731 states and 4021 transitions. [2024-10-24 03:55:39,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:39,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 372 [2024-10-24 03:55:39,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:39,517 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:39,517 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:39,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:39,518 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4035 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4038 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:39,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4038 Valid, 3858 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:39,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:39,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:39,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4751161247511613) internal successors, (2223), 1507 states have internal predecessors, (2223), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:39,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2229 transitions. [2024-10-24 03:55:39,534 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2229 transitions. Word has length 372 [2024-10-24 03:55:39,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:39,535 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2229 transitions. [2024-10-24 03:55:39,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:39,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2229 transitions. [2024-10-24 03:55:39,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-10-24 03:55:39,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:39,536 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:39,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-24 03:55:39,537 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:39,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:39,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1741286205, now seen corresponding path program 1 times [2024-10-24 03:55:39,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:39,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961024318] [2024-10-24 03:55:39,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:39,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:40,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:40,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:40,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:40,057 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:40,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:40,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961024318] [2024-10-24 03:55:40,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961024318] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:40,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:40,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:40,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286942420] [2024-10-24 03:55:40,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:40,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:40,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:40,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:40,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:40,059 INFO L87 Difference]: Start difference. First operand 1512 states and 2229 transitions. Second operand has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:40,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:40,454 INFO L93 Difference]: Finished difference Result 2731 states and 4019 transitions. [2024-10-24 03:55:40,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:40,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 373 [2024-10-24 03:55:40,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:40,457 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:40,457 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:40,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:40,459 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4027 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4030 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:40,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4030 Valid, 3858 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:40,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:40,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:40,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4744525547445255) internal successors, (2222), 1507 states have internal predecessors, (2222), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:40,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2228 transitions. [2024-10-24 03:55:40,472 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2228 transitions. Word has length 373 [2024-10-24 03:55:40,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:40,472 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2228 transitions. [2024-10-24 03:55:40,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:40,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2228 transitions. [2024-10-24 03:55:40,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2024-10-24 03:55:40,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:40,474 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:40,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-24 03:55:40,474 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:40,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:40,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1766330575, now seen corresponding path program 1 times [2024-10-24 03:55:40,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:40,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017176798] [2024-10-24 03:55:40,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:40,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:40,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:40,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:40,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:40,979 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:40,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:40,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017176798] [2024-10-24 03:55:40,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017176798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:40,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:40,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:40,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066054754] [2024-10-24 03:55:40,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:40,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:40,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:40,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:40,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:40,981 INFO L87 Difference]: Start difference. First operand 1512 states and 2228 transitions. Second operand has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:41,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:41,358 INFO L93 Difference]: Finished difference Result 2731 states and 4017 transitions. [2024-10-24 03:55:41,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:41,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 374 [2024-10-24 03:55:41,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:41,360 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:41,360 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:41,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:41,362 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2138 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2141 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:41,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2141 Valid, 3864 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:55:41,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:41,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:41,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4737889847378898) internal successors, (2221), 1507 states have internal predecessors, (2221), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:41,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2227 transitions. [2024-10-24 03:55:41,379 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2227 transitions. Word has length 374 [2024-10-24 03:55:41,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:41,380 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2227 transitions. [2024-10-24 03:55:41,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:41,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2227 transitions. [2024-10-24 03:55:41,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-10-24 03:55:41,381 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:41,381 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:41,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-24 03:55:41,382 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:41,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:41,382 INFO L85 PathProgramCache]: Analyzing trace with hash 548261732, now seen corresponding path program 1 times [2024-10-24 03:55:41,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:41,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218516880] [2024-10-24 03:55:41,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:41,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:41,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:41,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:41,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:41,903 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:41,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:41,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218516880] [2024-10-24 03:55:41,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218516880] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:41,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:41,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:41,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910555151] [2024-10-24 03:55:41,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:41,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:41,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:41,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:41,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:41,905 INFO L87 Difference]: Start difference. First operand 1512 states and 2227 transitions. Second operand has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:42,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:42,289 INFO L93 Difference]: Finished difference Result 2731 states and 4015 transitions. [2024-10-24 03:55:42,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:42,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 375 [2024-10-24 03:55:42,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:42,291 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:42,291 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:42,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:42,293 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4011 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4014 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:42,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4014 Valid, 3858 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:42,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:42,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:42,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4731254147312542) internal successors, (2220), 1507 states have internal predecessors, (2220), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:42,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2226 transitions. [2024-10-24 03:55:42,307 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2226 transitions. Word has length 375 [2024-10-24 03:55:42,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:42,307 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2226 transitions. [2024-10-24 03:55:42,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:42,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2226 transitions. [2024-10-24 03:55:42,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-10-24 03:55:42,309 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:42,309 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:42,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-24 03:55:42,309 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:42,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:42,309 INFO L85 PathProgramCache]: Analyzing trace with hash -978151176, now seen corresponding path program 1 times [2024-10-24 03:55:42,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:42,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063897906] [2024-10-24 03:55:42,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:42,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:42,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:42,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:42,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:42,861 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:42,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:42,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063897906] [2024-10-24 03:55:42,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063897906] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:42,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:42,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:42,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518391133] [2024-10-24 03:55:42,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:42,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:42,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:42,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:42,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:42,863 INFO L87 Difference]: Start difference. First operand 1512 states and 2226 transitions. Second operand has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:43,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:43,247 INFO L93 Difference]: Finished difference Result 2731 states and 4013 transitions. [2024-10-24 03:55:43,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:43,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 376 [2024-10-24 03:55:43,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:43,249 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:43,249 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:43,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:43,251 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4003 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4006 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:43,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4006 Valid, 3858 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:55:43,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:43,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:43,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4724618447246185) internal successors, (2219), 1507 states have internal predecessors, (2219), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:43,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2225 transitions. [2024-10-24 03:55:43,265 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2225 transitions. Word has length 376 [2024-10-24 03:55:43,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:43,265 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2225 transitions. [2024-10-24 03:55:43,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:43,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2225 transitions. [2024-10-24 03:55:43,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-10-24 03:55:43,267 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:43,267 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:43,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-24 03:55:43,267 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:43,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:43,267 INFO L85 PathProgramCache]: Analyzing trace with hash 466965259, now seen corresponding path program 1 times [2024-10-24 03:55:43,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:43,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407566676] [2024-10-24 03:55:43,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:43,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:43,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:43,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:43,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:43,782 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:43,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:43,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407566676] [2024-10-24 03:55:43,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407566676] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:43,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:43,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:43,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959862923] [2024-10-24 03:55:43,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:43,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:43,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:43,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:43,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:43,786 INFO L87 Difference]: Start difference. First operand 1512 states and 2225 transitions. Second operand has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:44,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:44,159 INFO L93 Difference]: Finished difference Result 2731 states and 4011 transitions. [2024-10-24 03:55:44,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:44,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 377 [2024-10-24 03:55:44,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:44,162 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:44,162 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:44,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:44,163 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2126 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:44,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2129 Valid, 3864 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:55:44,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:44,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:44,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4717982747179827) internal successors, (2218), 1507 states have internal predecessors, (2218), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:44,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2224 transitions. [2024-10-24 03:55:44,178 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2224 transitions. Word has length 377 [2024-10-24 03:55:44,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:44,178 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2224 transitions. [2024-10-24 03:55:44,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:44,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2224 transitions. [2024-10-24 03:55:44,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-10-24 03:55:44,180 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:44,180 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:44,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-24 03:55:44,180 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:44,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:44,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1182288447, now seen corresponding path program 1 times [2024-10-24 03:55:44,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:44,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029186284] [2024-10-24 03:55:44,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:44,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:44,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:44,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:44,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:44,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:44,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029186284] [2024-10-24 03:55:44,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029186284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:44,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:44,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:44,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827387253] [2024-10-24 03:55:44,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:44,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:44,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:44,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:44,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:44,702 INFO L87 Difference]: Start difference. First operand 1512 states and 2224 transitions. Second operand has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:45,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:45,077 INFO L93 Difference]: Finished difference Result 2731 states and 4009 transitions. [2024-10-24 03:55:45,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:45,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 378 [2024-10-24 03:55:45,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:45,079 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:45,079 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:45,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:45,081 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2122 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2125 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:45,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2125 Valid, 3864 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:55:45,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:45,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:45,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.471134704711347) internal successors, (2217), 1507 states have internal predecessors, (2217), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:45,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2223 transitions. [2024-10-24 03:55:45,096 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2223 transitions. Word has length 378 [2024-10-24 03:55:45,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:45,096 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2223 transitions. [2024-10-24 03:55:45,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:45,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2223 transitions. [2024-10-24 03:55:45,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-10-24 03:55:45,098 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:45,098 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:45,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-24 03:55:45,098 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:45,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:45,099 INFO L85 PathProgramCache]: Analyzing trace with hash 258946610, now seen corresponding path program 1 times [2024-10-24 03:55:45,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:45,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223135996] [2024-10-24 03:55:45,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:45,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:45,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:45,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:45,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:45,848 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:45,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:45,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223135996] [2024-10-24 03:55:45,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223135996] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:45,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:45,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:55:45,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330126814] [2024-10-24 03:55:45,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:45,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:55:45,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:45,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:55:45,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:55:45,850 INFO L87 Difference]: Start difference. First operand 1512 states and 2223 transitions. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:46,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:46,073 INFO L93 Difference]: Finished difference Result 2731 states and 4007 transitions. [2024-10-24 03:55:46,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:46,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 379 [2024-10-24 03:55:46,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:46,075 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:46,075 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:46,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:46,077 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 1958 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 4114 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:46,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1958 Valid, 4114 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:46,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:46,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:46,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4704711347047112) internal successors, (2216), 1507 states have internal predecessors, (2216), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:46,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2222 transitions. [2024-10-24 03:55:46,090 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2222 transitions. Word has length 379 [2024-10-24 03:55:46,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:46,090 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2222 transitions. [2024-10-24 03:55:46,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:46,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2222 transitions. [2024-10-24 03:55:46,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-10-24 03:55:46,092 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:46,092 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:46,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-24 03:55:46,093 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:46,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:46,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1647630598, now seen corresponding path program 1 times [2024-10-24 03:55:46,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:46,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828952257] [2024-10-24 03:55:46,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:46,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:46,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:46,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:46,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:46,596 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:46,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:46,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828952257] [2024-10-24 03:55:46,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828952257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:46,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:46,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:46,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105484722] [2024-10-24 03:55:46,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:46,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:46,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:46,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:46,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:46,599 INFO L87 Difference]: Start difference. First operand 1512 states and 2222 transitions. Second operand has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:46,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:46,801 INFO L93 Difference]: Finished difference Result 2761 states and 4049 transitions. [2024-10-24 03:55:46,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:55:46,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 380 [2024-10-24 03:55:46,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:46,803 INFO L225 Difference]: With dead ends: 2761 [2024-10-24 03:55:46,803 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:46,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:55:46,806 INFO L432 NwaCegarLoop]: 2196 mSDtfsCounter, 2017 mSDsluCounter, 4257 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2017 SdHoareTripleChecker+Valid, 6453 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:46,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2017 Valid, 6453 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:46,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:46,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:46,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4698075646980757) internal successors, (2215), 1507 states have internal predecessors, (2215), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:46,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2221 transitions. [2024-10-24 03:55:46,824 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2221 transitions. Word has length 380 [2024-10-24 03:55:46,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:46,824 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2221 transitions. [2024-10-24 03:55:46,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:46,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2221 transitions. [2024-10-24 03:55:46,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2024-10-24 03:55:46,827 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:46,828 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:46,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-24 03:55:46,828 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:46,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:46,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1686170519, now seen corresponding path program 1 times [2024-10-24 03:55:46,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:46,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196963954] [2024-10-24 03:55:46,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:46,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:47,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:47,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:47,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:47,347 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:47,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:47,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196963954] [2024-10-24 03:55:47,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196963954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:47,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:47,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:47,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535367366] [2024-10-24 03:55:47,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:47,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:47,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:47,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:47,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:47,349 INFO L87 Difference]: Start difference. First operand 1512 states and 2221 transitions. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:47,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:47,577 INFO L93 Difference]: Finished difference Result 2731 states and 4003 transitions. [2024-10-24 03:55:47,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:47,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 381 [2024-10-24 03:55:47,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:47,579 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:47,579 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:47,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:47,580 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 2206 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:47,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2209 Valid, 4120 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:47,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:47,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:47,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.46914399469144) internal successors, (2214), 1507 states have internal predecessors, (2214), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2220 transitions. [2024-10-24 03:55:47,594 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2220 transitions. Word has length 381 [2024-10-24 03:55:47,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:47,595 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2220 transitions. [2024-10-24 03:55:47,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2220 transitions. [2024-10-24 03:55:47,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-10-24 03:55:47,596 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:47,596 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:47,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-24 03:55:47,597 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:47,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:47,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1194990413, now seen corresponding path program 1 times [2024-10-24 03:55:47,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:47,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258125627] [2024-10-24 03:55:47,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:47,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:48,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:48,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:48,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:48,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:48,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258125627] [2024-10-24 03:55:48,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258125627] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:48,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:48,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:48,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183203343] [2024-10-24 03:55:48,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:48,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:48,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:48,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:48,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:48,105 INFO L87 Difference]: Start difference. First operand 1512 states and 2220 transitions. Second operand has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:48,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:48,338 INFO L93 Difference]: Finished difference Result 2731 states and 4001 transitions. [2024-10-24 03:55:48,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:48,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 382 [2024-10-24 03:55:48,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:48,340 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:48,340 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:48,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:48,341 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 2202 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:48,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 4120 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:48,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:48,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:48,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4684804246848042) internal successors, (2213), 1507 states have internal predecessors, (2213), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:48,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2219 transitions. [2024-10-24 03:55:48,354 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2219 transitions. Word has length 382 [2024-10-24 03:55:48,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:48,355 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2219 transitions. [2024-10-24 03:55:48,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:48,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2219 transitions. [2024-10-24 03:55:48,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2024-10-24 03:55:48,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:48,356 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:48,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-24 03:55:48,357 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:48,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:48,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1008211088, now seen corresponding path program 1 times [2024-10-24 03:55:48,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:48,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79052055] [2024-10-24 03:55:48,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:48,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:49,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:49,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:49,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:49,013 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:49,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:49,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79052055] [2024-10-24 03:55:49,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79052055] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:49,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:49,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:49,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964473145] [2024-10-24 03:55:49,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:49,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:49,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:49,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:49,015 INFO L87 Difference]: Start difference. First operand 1512 states and 2219 transitions. Second operand has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:49,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:49,250 INFO L93 Difference]: Finished difference Result 2731 states and 3999 transitions. [2024-10-24 03:55:49,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:49,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 383 [2024-10-24 03:55:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:49,253 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:49,253 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:49,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:49,255 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 2198 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:49,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 4120 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:49,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:49,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:49,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4678168546781685) internal successors, (2212), 1507 states have internal predecessors, (2212), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:49,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2218 transitions. [2024-10-24 03:55:49,272 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2218 transitions. Word has length 383 [2024-10-24 03:55:49,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:49,272 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2218 transitions. [2024-10-24 03:55:49,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:49,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2218 transitions. [2024-10-24 03:55:49,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-10-24 03:55:49,274 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:49,274 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:49,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-10-24 03:55:49,275 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:49,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:49,275 INFO L85 PathProgramCache]: Analyzing trace with hash 2070160660, now seen corresponding path program 1 times [2024-10-24 03:55:49,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:49,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404404381] [2024-10-24 03:55:49,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:49,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:49,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:49,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:49,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:49,845 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:49,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:49,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404404381] [2024-10-24 03:55:49,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404404381] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:49,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:49,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:49,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098864396] [2024-10-24 03:55:49,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:49,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:49,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:49,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:49,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:49,847 INFO L87 Difference]: Start difference. First operand 1512 states and 2218 transitions. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:50,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:50,079 INFO L93 Difference]: Finished difference Result 2731 states and 3997 transitions. [2024-10-24 03:55:50,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:50,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 384 [2024-10-24 03:55:50,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:50,081 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:50,081 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:50,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:50,083 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 2194 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2197 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:50,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2197 Valid, 4120 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:50,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:50,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:50,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.467153284671533) internal successors, (2211), 1507 states have internal predecessors, (2211), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:50,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2217 transitions. [2024-10-24 03:55:50,095 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2217 transitions. Word has length 384 [2024-10-24 03:55:50,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:50,096 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2217 transitions. [2024-10-24 03:55:50,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:50,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2217 transitions. [2024-10-24 03:55:50,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-10-24 03:55:50,097 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:50,097 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:50,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-10-24 03:55:50,098 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:50,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:50,098 INFO L85 PathProgramCache]: Analyzing trace with hash 575419447, now seen corresponding path program 1 times [2024-10-24 03:55:50,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:50,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418767111] [2024-10-24 03:55:50,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:50,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:50,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:50,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:50,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:50,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:50,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418767111] [2024-10-24 03:55:50,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418767111] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:50,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:50,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:50,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645566353] [2024-10-24 03:55:50,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:50,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:50,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:50,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:50,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:50,621 INFO L87 Difference]: Start difference. First operand 1512 states and 2217 transitions. Second operand has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:50,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:50,845 INFO L93 Difference]: Finished difference Result 2731 states and 3995 transitions. [2024-10-24 03:55:50,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:50,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 385 [2024-10-24 03:55:50,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:50,847 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:50,847 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:50,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:50,848 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 4155 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4158 SdHoareTripleChecker+Valid, 4114 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:50,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4158 Valid, 4114 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:50,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:50,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4664897146648972) internal successors, (2210), 1507 states have internal predecessors, (2210), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:50,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2216 transitions. [2024-10-24 03:55:50,861 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2216 transitions. Word has length 385 [2024-10-24 03:55:50,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:50,861 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2216 transitions. [2024-10-24 03:55:50,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:50,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2216 transitions. [2024-10-24 03:55:50,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-10-24 03:55:50,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:50,863 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:50,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-10-24 03:55:50,863 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:50,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:50,863 INFO L85 PathProgramCache]: Analyzing trace with hash -925911461, now seen corresponding path program 1 times [2024-10-24 03:55:50,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:50,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797464579] [2024-10-24 03:55:50,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:50,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:51,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:51,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:51,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:51,375 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:51,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:51,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797464579] [2024-10-24 03:55:51,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797464579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:51,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:51,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:51,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776763983] [2024-10-24 03:55:51,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:51,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:51,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:51,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:51,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:51,377 INFO L87 Difference]: Start difference. First operand 1512 states and 2216 transitions. Second operand has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:51,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:51,603 INFO L93 Difference]: Finished difference Result 2731 states and 3993 transitions. [2024-10-24 03:55:51,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:51,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 386 [2024-10-24 03:55:51,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:51,606 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:51,606 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:51,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:51,607 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 4147 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4150 SdHoareTripleChecker+Valid, 4114 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:51,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4150 Valid, 4114 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:51,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:51,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:51,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4658261446582614) internal successors, (2209), 1507 states have internal predecessors, (2209), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2215 transitions. [2024-10-24 03:55:51,620 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2215 transitions. Word has length 386 [2024-10-24 03:55:51,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:51,620 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2215 transitions. [2024-10-24 03:55:51,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:51,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2215 transitions. [2024-10-24 03:55:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-10-24 03:55:51,621 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:51,622 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:51,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-10-24 03:55:51,622 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:51,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:51,622 INFO L85 PathProgramCache]: Analyzing trace with hash -408276130, now seen corresponding path program 1 times [2024-10-24 03:55:51,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:51,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235949339] [2024-10-24 03:55:51,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:51,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:52,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:52,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:52,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:52,203 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:52,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:52,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235949339] [2024-10-24 03:55:52,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235949339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:52,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:52,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:52,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133101704] [2024-10-24 03:55:52,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:52,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:52,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:52,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:52,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:52,205 INFO L87 Difference]: Start difference. First operand 1512 states and 2215 transitions. Second operand has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:52,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:52,424 INFO L93 Difference]: Finished difference Result 2731 states and 3991 transitions. [2024-10-24 03:55:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:52,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 387 [2024-10-24 03:55:52,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:52,426 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:52,426 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:52,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:52,428 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 4139 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4142 SdHoareTripleChecker+Valid, 4114 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:52,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4142 Valid, 4114 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:52,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:52,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:52,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4651625746516257) internal successors, (2208), 1507 states have internal predecessors, (2208), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:52,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2214 transitions. [2024-10-24 03:55:52,441 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2214 transitions. Word has length 387 [2024-10-24 03:55:52,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:52,442 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2214 transitions. [2024-10-24 03:55:52,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:52,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2214 transitions. [2024-10-24 03:55:52,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-10-24 03:55:52,443 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:52,443 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:52,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-10-24 03:55:52,444 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:52,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:52,444 INFO L85 PathProgramCache]: Analyzing trace with hash -692482270, now seen corresponding path program 1 times [2024-10-24 03:55:52,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:52,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789892621] [2024-10-24 03:55:52,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:52,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:52,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:52,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:52,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:52,959 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:52,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:52,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789892621] [2024-10-24 03:55:52,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789892621] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:52,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:52,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:52,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481785633] [2024-10-24 03:55:52,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:52,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:52,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:52,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:52,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:52,961 INFO L87 Difference]: Start difference. First operand 1512 states and 2214 transitions. Second operand has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:53,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:53,170 INFO L93 Difference]: Finished difference Result 2731 states and 3989 transitions. [2024-10-24 03:55:53,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:53,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 388 [2024-10-24 03:55:53,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:53,172 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:53,172 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:53,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:53,174 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 2178 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:53,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2181 Valid, 4120 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:53,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:53,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:53,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.46449900464499) internal successors, (2207), 1507 states have internal predecessors, (2207), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:53,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2213 transitions. [2024-10-24 03:55:53,186 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2213 transitions. Word has length 388 [2024-10-24 03:55:53,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:53,186 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2213 transitions. [2024-10-24 03:55:53,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:53,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2213 transitions. [2024-10-24 03:55:53,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-10-24 03:55:53,188 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:53,188 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:53,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-10-24 03:55:53,188 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:53,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:53,189 INFO L85 PathProgramCache]: Analyzing trace with hash 39899653, now seen corresponding path program 1 times [2024-10-24 03:55:53,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:53,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472952535] [2024-10-24 03:55:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:53,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:53,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:53,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:53,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:53,711 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:53,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:53,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472952535] [2024-10-24 03:55:53,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472952535] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:53,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:53,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:53,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000827105] [2024-10-24 03:55:53,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:53,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:53,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:53,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:53,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:53,713 INFO L87 Difference]: Start difference. First operand 1512 states and 2213 transitions. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:53,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:53,933 INFO L93 Difference]: Finished difference Result 2731 states and 3987 transitions. [2024-10-24 03:55:53,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:53,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 389 [2024-10-24 03:55:53,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:53,936 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:53,936 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:53,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:53,937 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 4123 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4126 SdHoareTripleChecker+Valid, 4114 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:53,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4126 Valid, 4114 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:53,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:53,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:53,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4638354346383544) internal successors, (2206), 1507 states have internal predecessors, (2206), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:53,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2212 transitions. [2024-10-24 03:55:53,951 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2212 transitions. Word has length 389 [2024-10-24 03:55:53,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:53,951 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2212 transitions. [2024-10-24 03:55:53,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:53,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2212 transitions. [2024-10-24 03:55:53,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-10-24 03:55:53,953 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:53,953 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:53,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-10-24 03:55:53,953 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:53,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:53,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1988202647, now seen corresponding path program 1 times [2024-10-24 03:55:53,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:53,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857020848] [2024-10-24 03:55:53,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:53,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:54,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:54,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:54,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:54,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:54,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857020848] [2024-10-24 03:55:54,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857020848] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:54,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:54,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:54,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942640219] [2024-10-24 03:55:54,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:54,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:54,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:54,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:54,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:54,489 INFO L87 Difference]: Start difference. First operand 1512 states and 2212 transitions. Second operand has 5 states, 5 states have (on average 75.6) internal successors, (378), 5 states have internal predecessors, (378), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:54,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:54,705 INFO L93 Difference]: Finished difference Result 2731 states and 3985 transitions. [2024-10-24 03:55:54,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:54,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 75.6) internal successors, (378), 5 states have internal predecessors, (378), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 390 [2024-10-24 03:55:54,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:54,707 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:54,707 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:54,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:54,708 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 4115 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4118 SdHoareTripleChecker+Valid, 4114 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:54,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4118 Valid, 4114 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:54,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:54,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:54,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4631718646317187) internal successors, (2205), 1507 states have internal predecessors, (2205), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:54,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2211 transitions. [2024-10-24 03:55:54,722 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2211 transitions. Word has length 390 [2024-10-24 03:55:54,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:54,722 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2211 transitions. [2024-10-24 03:55:54,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.6) internal successors, (378), 5 states have internal predecessors, (378), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:54,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2211 transitions. [2024-10-24 03:55:54,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-10-24 03:55:54,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:54,724 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:54,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-10-24 03:55:54,724 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:54,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:54,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1161744428, now seen corresponding path program 1 times [2024-10-24 03:55:54,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:54,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354700601] [2024-10-24 03:55:54,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:54,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:55,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:55,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:55,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:55,360 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:55,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:55,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354700601] [2024-10-24 03:55:55,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354700601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:55,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:55,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:55,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167404226] [2024-10-24 03:55:55,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:55,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:55,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:55,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:55,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:55,363 INFO L87 Difference]: Start difference. First operand 1512 states and 2211 transitions. Second operand has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:55,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:55,570 INFO L93 Difference]: Finished difference Result 2731 states and 3983 transitions. [2024-10-24 03:55:55,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:55,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 391 [2024-10-24 03:55:55,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:55,572 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:55,572 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:55,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:55,573 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 2166 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2169 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:55,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2169 Valid, 4120 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:55,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:55,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:55,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.462508294625083) internal successors, (2204), 1507 states have internal predecessors, (2204), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:55,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2210 transitions. [2024-10-24 03:55:55,586 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2210 transitions. Word has length 391 [2024-10-24 03:55:55,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:55,586 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2210 transitions. [2024-10-24 03:55:55,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:55,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2210 transitions. [2024-10-24 03:55:55,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-10-24 03:55:55,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:55,588 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:55,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-10-24 03:55:55,589 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:55,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:55,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1654331184, now seen corresponding path program 1 times [2024-10-24 03:55:55,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:55,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382978978] [2024-10-24 03:55:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:55,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:56,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:56,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:56,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:56,128 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:56,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:56,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382978978] [2024-10-24 03:55:56,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382978978] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:56,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:56,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:56,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671553070] [2024-10-24 03:55:56,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:56,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:56,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:56,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:56,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:56,129 INFO L87 Difference]: Start difference. First operand 1512 states and 2210 transitions. Second operand has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:56,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:56,339 INFO L93 Difference]: Finished difference Result 2731 states and 3981 transitions. [2024-10-24 03:55:56,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:56,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 392 [2024-10-24 03:55:56,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:56,341 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:56,341 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:56,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:56,343 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 2162 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:56,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2165 Valid, 4120 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:56,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:56,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:56,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4618447246184472) internal successors, (2203), 1507 states have internal predecessors, (2203), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:56,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2209 transitions. [2024-10-24 03:55:56,357 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2209 transitions. Word has length 392 [2024-10-24 03:55:56,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:56,357 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2209 transitions. [2024-10-24 03:55:56,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:56,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2209 transitions. [2024-10-24 03:55:56,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-10-24 03:55:56,359 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:56,359 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:56,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-10-24 03:55:56,359 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:56,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:56,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1605561811, now seen corresponding path program 1 times [2024-10-24 03:55:56,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:56,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980600183] [2024-10-24 03:55:56,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:56,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:56,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:56,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:56,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:56,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:56,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980600183] [2024-10-24 03:55:56,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980600183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:56,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:56,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:56,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408058908] [2024-10-24 03:55:56,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:56,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:56,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:56,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:56,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:56,905 INFO L87 Difference]: Start difference. First operand 1512 states and 2209 transitions. Second operand has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:57,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:57,122 INFO L93 Difference]: Finished difference Result 2731 states and 3979 transitions. [2024-10-24 03:55:57,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:57,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 393 [2024-10-24 03:55:57,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:57,124 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:57,124 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:57,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:57,126 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 4091 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4094 SdHoareTripleChecker+Valid, 4114 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:57,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4094 Valid, 4114 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:57,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:57,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:57,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4611811546118116) internal successors, (2202), 1507 states have internal predecessors, (2202), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:57,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2208 transitions. [2024-10-24 03:55:57,139 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2208 transitions. Word has length 393 [2024-10-24 03:55:57,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:57,140 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2208 transitions. [2024-10-24 03:55:57,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:57,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2208 transitions. [2024-10-24 03:55:57,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-10-24 03:55:57,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:57,141 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:57,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-10-24 03:55:57,142 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:57,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:57,142 INFO L85 PathProgramCache]: Analyzing trace with hash -525580681, now seen corresponding path program 1 times [2024-10-24 03:55:57,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:57,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235287853] [2024-10-24 03:55:57,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:57,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:57,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:57,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:57,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:57,685 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:57,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:57,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235287853] [2024-10-24 03:55:57,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235287853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:57,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:57,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:57,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705545915] [2024-10-24 03:55:57,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:57,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:57,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:57,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:57,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:57,687 INFO L87 Difference]: Start difference. First operand 1512 states and 2208 transitions. Second operand has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:57,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:57,897 INFO L93 Difference]: Finished difference Result 2731 states and 3977 transitions. [2024-10-24 03:55:57,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:57,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 394 [2024-10-24 03:55:57,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:57,899 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:57,899 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:57,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:57,900 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 2154 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2157 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:57,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2157 Valid, 4120 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:57,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:57,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:57,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.460517584605176) internal successors, (2201), 1507 states have internal predecessors, (2201), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:57,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2207 transitions. [2024-10-24 03:55:57,914 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2207 transitions. Word has length 394 [2024-10-24 03:55:57,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:57,915 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2207 transitions. [2024-10-24 03:55:57,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:57,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2207 transitions. [2024-10-24 03:55:57,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-10-24 03:55:57,916 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:57,917 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:57,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-10-24 03:55:57,917 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:57,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:57,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1573645050, now seen corresponding path program 1 times [2024-10-24 03:55:57,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:57,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597964819] [2024-10-24 03:55:57,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:57,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:58,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:58,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:58,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:58,805 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:58,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:58,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597964819] [2024-10-24 03:55:58,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597964819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:58,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:58,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:55:58,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646793370] [2024-10-24 03:55:58,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:58,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:55:58,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:58,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:55:58,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:55:58,806 INFO L87 Difference]: Start difference. First operand 1512 states and 2207 transitions. Second operand has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:58,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:58,992 INFO L93 Difference]: Finished difference Result 2731 states and 3975 transitions. [2024-10-24 03:55:58,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:58,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 395 [2024-10-24 03:55:58,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:58,994 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:58,994 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:58,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:58,997 INFO L432 NwaCegarLoop]: 2120 mSDtfsCounter, 1988 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 4242 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:58,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1988 Valid, 4242 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:55:58,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:59,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:59,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4598540145985401) internal successors, (2200), 1507 states have internal predecessors, (2200), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:59,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2206 transitions. [2024-10-24 03:55:59,012 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2206 transitions. Word has length 395 [2024-10-24 03:55:59,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:59,012 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2206 transitions. [2024-10-24 03:55:59,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:59,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2206 transitions. [2024-10-24 03:55:59,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-10-24 03:55:59,014 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:59,014 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:59,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-10-24 03:55:59,015 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:59,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:59,015 INFO L85 PathProgramCache]: Analyzing trace with hash -284896145, now seen corresponding path program 1 times [2024-10-24 03:55:59,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:59,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171839160] [2024-10-24 03:55:59,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:59,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:55:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:59,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:55:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:59,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:55:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:59,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:55:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:55:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:55:59,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:55:59,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171839160] [2024-10-24 03:55:59,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171839160] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:55:59,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:55:59,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:55:59,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060840603] [2024-10-24 03:55:59,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:55:59,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:55:59,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:55:59,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:55:59,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:55:59,775 INFO L87 Difference]: Start difference. First operand 1512 states and 2206 transitions. Second operand has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:59,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:55:59,886 INFO L93 Difference]: Finished difference Result 2731 states and 3973 transitions. [2024-10-24 03:55:59,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:55:59,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 396 [2024-10-24 03:55:59,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:55:59,888 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:55:59,888 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:55:59,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:55:59,890 INFO L432 NwaCegarLoop]: 2120 mSDtfsCounter, 4173 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4176 SdHoareTripleChecker+Valid, 4242 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:55:59,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4176 Valid, 4242 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:55:59,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:55:59,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:55:59,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4591904445919044) internal successors, (2199), 1507 states have internal predecessors, (2199), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:55:59,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2205 transitions. [2024-10-24 03:55:59,904 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2205 transitions. Word has length 396 [2024-10-24 03:55:59,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:55:59,904 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2205 transitions. [2024-10-24 03:55:59,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:55:59,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2205 transitions. [2024-10-24 03:55:59,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2024-10-24 03:55:59,906 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:55:59,906 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:55:59,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-10-24 03:55:59,907 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:55:59,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:55:59,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1707456813, now seen corresponding path program 1 times [2024-10-24 03:55:59,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:55:59,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806616174] [2024-10-24 03:55:59,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:55:59,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:00,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:00,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:00,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:00,456 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:00,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:00,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806616174] [2024-10-24 03:56:00,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806616174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:00,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:00,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:00,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229532893] [2024-10-24 03:56:00,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:00,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:00,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:00,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:00,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:00,458 INFO L87 Difference]: Start difference. First operand 1512 states and 2205 transitions. Second operand has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:00,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:00,612 INFO L93 Difference]: Finished difference Result 2731 states and 3971 transitions. [2024-10-24 03:56:00,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:00,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 397 [2024-10-24 03:56:00,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:00,615 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:00,615 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:00,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:00,616 INFO L432 NwaCegarLoop]: 2120 mSDtfsCounter, 2187 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2190 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:00,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2190 Valid, 4248 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:56:00,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:00,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:00,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4585268745852686) internal successors, (2198), 1507 states have internal predecessors, (2198), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:00,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2204 transitions. [2024-10-24 03:56:00,632 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2204 transitions. Word has length 397 [2024-10-24 03:56:00,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:00,632 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2204 transitions. [2024-10-24 03:56:00,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:00,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2204 transitions. [2024-10-24 03:56:00,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-10-24 03:56:00,635 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:00,635 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:56:00,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-10-24 03:56:00,635 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:00,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:00,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1974487144, now seen corresponding path program 1 times [2024-10-24 03:56:00,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:00,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661565041] [2024-10-24 03:56:00,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:00,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:01,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:01,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:01,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:01,247 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:01,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:01,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661565041] [2024-10-24 03:56:01,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661565041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:01,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:01,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:01,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448491540] [2024-10-24 03:56:01,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:01,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:01,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:01,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:01,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:01,249 INFO L87 Difference]: Start difference. First operand 1512 states and 2204 transitions. Second operand has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:01,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:01,375 INFO L93 Difference]: Finished difference Result 2731 states and 3969 transitions. [2024-10-24 03:56:01,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:01,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 398 [2024-10-24 03:56:01,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:01,378 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:01,378 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:01,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:01,379 INFO L432 NwaCegarLoop]: 2120 mSDtfsCounter, 2183 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2186 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:01,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2186 Valid, 4248 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:56:01,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:01,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:01,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4578633045786331) internal successors, (2197), 1507 states have internal predecessors, (2197), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:01,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2203 transitions. [2024-10-24 03:56:01,393 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2203 transitions. Word has length 398 [2024-10-24 03:56:01,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:01,394 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2203 transitions. [2024-10-24 03:56:01,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:01,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2203 transitions. [2024-10-24 03:56:01,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-10-24 03:56:01,395 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:01,396 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:56:01,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-10-24 03:56:01,396 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:01,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:01,396 INFO L85 PathProgramCache]: Analyzing trace with hash 383593260, now seen corresponding path program 1 times [2024-10-24 03:56:01,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:01,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037213271] [2024-10-24 03:56:01,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:01,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:01,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:01,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:01,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:01,941 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:01,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:01,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037213271] [2024-10-24 03:56:01,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037213271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:01,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:01,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:01,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809676180] [2024-10-24 03:56:01,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:01,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:01,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:01,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:01,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:01,943 INFO L87 Difference]: Start difference. First operand 1512 states and 2203 transitions. Second operand has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:02,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:02,077 INFO L93 Difference]: Finished difference Result 2731 states and 3967 transitions. [2024-10-24 03:56:02,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:02,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 399 [2024-10-24 03:56:02,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:02,079 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:02,079 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:02,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:02,080 INFO L432 NwaCegarLoop]: 2120 mSDtfsCounter, 4149 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4152 SdHoareTripleChecker+Valid, 4242 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:02,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4152 Valid, 4242 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:56:02,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:02,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:02,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4571997345719974) internal successors, (2196), 1507 states have internal predecessors, (2196), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:02,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2202 transitions. [2024-10-24 03:56:02,094 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2202 transitions. Word has length 399 [2024-10-24 03:56:02,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:02,094 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2202 transitions. [2024-10-24 03:56:02,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:02,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2202 transitions. [2024-10-24 03:56:02,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-10-24 03:56:02,096 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:02,096 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:56:02,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-10-24 03:56:02,096 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:02,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:02,096 INFO L85 PathProgramCache]: Analyzing trace with hash 460483809, now seen corresponding path program 1 times [2024-10-24 03:56:02,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:02,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215450833] [2024-10-24 03:56:02,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:02,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:02,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:02,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:02,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:02,659 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:02,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:02,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215450833] [2024-10-24 03:56:02,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215450833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:02,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:02,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:02,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201556008] [2024-10-24 03:56:02,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:02,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:02,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:02,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:02,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:02,661 INFO L87 Difference]: Start difference. First operand 1512 states and 2202 transitions. Second operand has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:02,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:02,791 INFO L93 Difference]: Finished difference Result 2731 states and 3965 transitions. [2024-10-24 03:56:02,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:02,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 400 [2024-10-24 03:56:02,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:02,794 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:02,794 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:02,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:02,796 INFO L432 NwaCegarLoop]: 2120 mSDtfsCounter, 4141 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4144 SdHoareTripleChecker+Valid, 4242 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:02,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4144 Valid, 4242 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:56:02,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:02,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:02,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4565361645653616) internal successors, (2195), 1507 states have internal predecessors, (2195), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:02,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2201 transitions. [2024-10-24 03:56:02,809 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2201 transitions. Word has length 400 [2024-10-24 03:56:02,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:02,810 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2201 transitions. [2024-10-24 03:56:02,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:02,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2201 transitions. [2024-10-24 03:56:02,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-10-24 03:56:02,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:02,811 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:56:02,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-10-24 03:56:02,812 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:02,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:02,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1167075323, now seen corresponding path program 1 times [2024-10-24 03:56:02,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:02,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572695203] [2024-10-24 03:56:02,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:02,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:03,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:03,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:03,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:03,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:03,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572695203] [2024-10-24 03:56:03,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572695203] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:03,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:03,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:03,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218811345] [2024-10-24 03:56:03,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:03,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:03,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:03,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:03,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:03,364 INFO L87 Difference]: Start difference. First operand 1512 states and 2201 transitions. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:03,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:03,496 INFO L93 Difference]: Finished difference Result 2731 states and 3963 transitions. [2024-10-24 03:56:03,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:03,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 401 [2024-10-24 03:56:03,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:03,498 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:03,498 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:03,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:03,499 INFO L432 NwaCegarLoop]: 2120 mSDtfsCounter, 2171 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:03,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2174 Valid, 4248 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:56:03,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:03,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:03,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4558725945587259) internal successors, (2194), 1507 states have internal predecessors, (2194), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:03,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2200 transitions. [2024-10-24 03:56:03,513 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2200 transitions. Word has length 401 [2024-10-24 03:56:03,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:03,514 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2200 transitions. [2024-10-24 03:56:03,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:03,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2200 transitions. [2024-10-24 03:56:03,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-10-24 03:56:03,515 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:03,516 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:56:03,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-10-24 03:56:03,516 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:03,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:03,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1904967206, now seen corresponding path program 1 times [2024-10-24 03:56:03,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:03,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670680870] [2024-10-24 03:56:03,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:03,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:04,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:04,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:04,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:04,232 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:04,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:04,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670680870] [2024-10-24 03:56:04,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670680870] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:04,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:04,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:04,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331971010] [2024-10-24 03:56:04,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:04,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:04,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:04,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:04,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:04,234 INFO L87 Difference]: Start difference. First operand 1512 states and 2200 transitions. Second operand has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:04,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:04,374 INFO L93 Difference]: Finished difference Result 2731 states and 3961 transitions. [2024-10-24 03:56:04,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:04,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 402 [2024-10-24 03:56:04,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:04,377 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:04,377 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:04,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:04,378 INFO L432 NwaCegarLoop]: 2120 mSDtfsCounter, 4125 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4128 SdHoareTripleChecker+Valid, 4242 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:04,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4128 Valid, 4242 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:56:04,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:04,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:04,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4552090245520903) internal successors, (2193), 1507 states have internal predecessors, (2193), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:04,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2199 transitions. [2024-10-24 03:56:04,392 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2199 transitions. Word has length 402 [2024-10-24 03:56:04,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:04,393 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2199 transitions. [2024-10-24 03:56:04,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:04,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2199 transitions. [2024-10-24 03:56:04,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-10-24 03:56:04,395 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:04,395 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:56:04,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-10-24 03:56:04,395 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:04,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:04,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1903325858, now seen corresponding path program 1 times [2024-10-24 03:56:04,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:04,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816249192] [2024-10-24 03:56:04,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:04,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:05,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:05,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:05,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:05,145 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:05,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:05,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816249192] [2024-10-24 03:56:05,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816249192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:05,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:05,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:56:05,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376354859] [2024-10-24 03:56:05,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:05,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:56:05,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:05,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:56:05,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:56:05,147 INFO L87 Difference]: Start difference. First operand 1512 states and 2199 transitions. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:56:05,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:05,207 INFO L93 Difference]: Finished difference Result 2731 states and 3959 transitions. [2024-10-24 03:56:05,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:05,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 403 [2024-10-24 03:56:05,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:05,209 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:05,209 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:05,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:05,211 INFO L432 NwaCegarLoop]: 2178 mSDtfsCounter, 2033 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 4358 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:05,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 4358 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:56:05,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:05,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:05,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4545454545454546) internal successors, (2192), 1507 states have internal predecessors, (2192), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:05,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2198 transitions. [2024-10-24 03:56:05,225 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2198 transitions. Word has length 403 [2024-10-24 03:56:05,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:05,226 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2198 transitions. [2024-10-24 03:56:05,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:56:05,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2198 transitions. [2024-10-24 03:56:05,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-10-24 03:56:05,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:05,227 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:56:05,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-10-24 03:56:05,228 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:05,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:05,228 INFO L85 PathProgramCache]: Analyzing trace with hash -657950866, now seen corresponding path program 1 times [2024-10-24 03:56:05,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:05,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333131414] [2024-10-24 03:56:05,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:05,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:06,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:06,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-24 03:56:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:06,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-24 03:56:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:06,045 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:06,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:06,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333131414] [2024-10-24 03:56:06,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333131414] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:06,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:06,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:56:06,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636823222] [2024-10-24 03:56:06,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:06,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:56:06,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:06,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:56:06,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:56:06,047 INFO L87 Difference]: Start difference. First operand 1512 states and 2198 transitions. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:06,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:06,105 INFO L93 Difference]: Finished difference Result 2731 states and 3957 transitions. [2024-10-24 03:56:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:06,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 404 [2024-10-24 03:56:06,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:06,108 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:06,108 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:06,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:06,109 INFO L432 NwaCegarLoop]: 2171 mSDtfsCounter, 1993 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 4344 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:06,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1993 Valid, 4344 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:56:06,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:06,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:06,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.453218314532183) internal successors, (2190), 1507 states have internal predecessors, (2190), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:06,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2196 transitions. [2024-10-24 03:56:06,123 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2196 transitions. Word has length 404 [2024-10-24 03:56:06,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:06,124 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2196 transitions. [2024-10-24 03:56:06,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:06,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2196 transitions. [2024-10-24 03:56:06,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-10-24 03:56:06,126 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:06,126 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:56:06,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-10-24 03:56:06,126 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:06,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:06,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1071036651, now seen corresponding path program 1 times [2024-10-24 03:56:06,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:06,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167739465] [2024-10-24 03:56:06,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:06,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:06,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:06,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-24 03:56:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:06,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-24 03:56:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:06,825 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:06,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:06,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167739465] [2024-10-24 03:56:06,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167739465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:06,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:06,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:06,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121036444] [2024-10-24 03:56:06,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:06,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:06,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:06,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:06,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:06,827 INFO L87 Difference]: Start difference. First operand 1512 states and 2196 transitions. Second operand has 5 states, 5 states have (on average 78.8) internal successors, (394), 5 states have internal predecessors, (394), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:06,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:06,890 INFO L93 Difference]: Finished difference Result 2731 states and 3953 transitions. [2024-10-24 03:56:06,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:06,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 78.8) internal successors, (394), 5 states have internal predecessors, (394), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 406 [2024-10-24 03:56:06,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:06,892 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:06,892 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:06,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:06,893 INFO L432 NwaCegarLoop]: 2171 mSDtfsCounter, 4166 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4169 SdHoareTripleChecker+Valid, 4344 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:06,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4169 Valid, 4344 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:56:06,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:06,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:06,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4525547445255473) internal successors, (2189), 1507 states have internal predecessors, (2189), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2195 transitions. [2024-10-24 03:56:06,908 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2195 transitions. Word has length 406 [2024-10-24 03:56:06,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:06,909 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2195 transitions. [2024-10-24 03:56:06,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.8) internal successors, (394), 5 states have internal predecessors, (394), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2195 transitions. [2024-10-24 03:56:06,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-10-24 03:56:06,910 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:06,911 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:56:06,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-10-24 03:56:06,911 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:06,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:06,911 INFO L85 PathProgramCache]: Analyzing trace with hash 921260205, now seen corresponding path program 1 times [2024-10-24 03:56:06,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:06,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940607877] [2024-10-24 03:56:06,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:06,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:07,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:07,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-24 03:56:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:07,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-24 03:56:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:07,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:07,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940607877] [2024-10-24 03:56:07,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940607877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:07,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:07,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:56:07,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25063636] [2024-10-24 03:56:07,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:07,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:56:07,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:07,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:56:07,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:56:07,730 INFO L87 Difference]: Start difference. First operand 1512 states and 2195 transitions. Second operand has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:56:07,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:07,790 INFO L93 Difference]: Finished difference Result 2731 states and 3951 transitions. [2024-10-24 03:56:07,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:07,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 407 [2024-10-24 03:56:07,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:07,792 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:07,792 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:07,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:07,793 INFO L432 NwaCegarLoop]: 2175 mSDtfsCounter, 2028 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 4352 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:07,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 4352 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:56:07,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:07,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:07,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4518911745189118) internal successors, (2188), 1507 states have internal predecessors, (2188), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:07,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2194 transitions. [2024-10-24 03:56:07,807 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2194 transitions. Word has length 407 [2024-10-24 03:56:07,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:07,807 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2194 transitions. [2024-10-24 03:56:07,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:56:07,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2194 transitions. [2024-10-24 03:56:07,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-10-24 03:56:07,809 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:07,809 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:56:07,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-10-24 03:56:07,810 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:07,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:07,810 INFO L85 PathProgramCache]: Analyzing trace with hash 158004890, now seen corresponding path program 1 times [2024-10-24 03:56:07,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:07,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513556613] [2024-10-24 03:56:07,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:07,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:08,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:08,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 03:56:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:08,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-24 03:56:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:08,921 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:08,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:08,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513556613] [2024-10-24 03:56:08,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513556613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:08,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:08,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:08,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562612769] [2024-10-24 03:56:08,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:08,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:08,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:08,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:08,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:08,922 INFO L87 Difference]: Start difference. First operand 1512 states and 2194 transitions. Second operand has 5 states, 5 states have (on average 79.2) internal successors, (396), 5 states have internal predecessors, (396), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:09,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:09,162 INFO L93 Difference]: Finished difference Result 2731 states and 3949 transitions. [2024-10-24 03:56:09,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:09,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 79.2) internal successors, (396), 5 states have internal predecessors, (396), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 408 [2024-10-24 03:56:09,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:09,164 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:09,164 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:09,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:09,165 INFO L432 NwaCegarLoop]: 2043 mSDtfsCounter, 1947 mSDsluCounter, 2045 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1947 SdHoareTripleChecker+Valid, 4088 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:09,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1947 Valid, 4088 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:56:09,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:09,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:09,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.451227604512276) internal successors, (2187), 1507 states have internal predecessors, (2187), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:09,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2193 transitions. [2024-10-24 03:56:09,180 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2193 transitions. Word has length 408 [2024-10-24 03:56:09,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:09,180 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2193 transitions. [2024-10-24 03:56:09,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.2) internal successors, (396), 5 states have internal predecessors, (396), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:09,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2193 transitions. [2024-10-24 03:56:09,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-10-24 03:56:09,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:09,182 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:56:09,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-10-24 03:56:09,182 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:09,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:09,182 INFO L85 PathProgramCache]: Analyzing trace with hash 719030234, now seen corresponding path program 1 times [2024-10-24 03:56:09,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:09,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504663875] [2024-10-24 03:56:09,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:09,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:10,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:10,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 03:56:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:10,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-24 03:56:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:10,240 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:10,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:10,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504663875] [2024-10-24 03:56:10,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504663875] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:10,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:10,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:10,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470715682] [2024-10-24 03:56:10,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:10,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:10,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:10,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:10,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:10,242 INFO L87 Difference]: Start difference. First operand 1512 states and 2193 transitions. Second operand has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:10,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:10,494 INFO L93 Difference]: Finished difference Result 2731 states and 3947 transitions. [2024-10-24 03:56:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:10,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 409 [2024-10-24 03:56:10,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:10,496 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:10,496 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:10,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:10,498 INFO L432 NwaCegarLoop]: 2043 mSDtfsCounter, 1943 mSDsluCounter, 2051 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 4094 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:10,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 4094 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:56:10,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:10,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:10,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4505640345056403) internal successors, (2186), 1507 states have internal predecessors, (2186), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:10,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2192 transitions. [2024-10-24 03:56:10,512 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2192 transitions. Word has length 409 [2024-10-24 03:56:10,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:10,513 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2192 transitions. [2024-10-24 03:56:10,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:10,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2192 transitions. [2024-10-24 03:56:10,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-10-24 03:56:10,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:10,514 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:56:10,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-10-24 03:56:10,515 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:10,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:10,515 INFO L85 PathProgramCache]: Analyzing trace with hash 275836571, now seen corresponding path program 1 times [2024-10-24 03:56:10,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:10,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943471932] [2024-10-24 03:56:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:10,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:11,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:11,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 03:56:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:11,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-24 03:56:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:11,428 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:11,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:11,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943471932] [2024-10-24 03:56:11,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943471932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:11,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:11,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:11,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822923205] [2024-10-24 03:56:11,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:11,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:11,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:11,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:11,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:11,430 INFO L87 Difference]: Start difference. First operand 1512 states and 2192 transitions. Second operand has 5 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:11,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:11,672 INFO L93 Difference]: Finished difference Result 2731 states and 3945 transitions. [2024-10-24 03:56:11,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:11,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 410 [2024-10-24 03:56:11,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:11,674 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:11,674 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:11,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:11,676 INFO L432 NwaCegarLoop]: 2043 mSDtfsCounter, 3876 mSDsluCounter, 2045 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3876 SdHoareTripleChecker+Valid, 4088 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:11,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3876 Valid, 4088 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:56:11,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:11,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:11,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4499004644990046) internal successors, (2185), 1507 states have internal predecessors, (2185), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:11,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2191 transitions. [2024-10-24 03:56:11,690 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2191 transitions. Word has length 410 [2024-10-24 03:56:11,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:11,691 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2191 transitions. [2024-10-24 03:56:11,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:11,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2191 transitions. [2024-10-24 03:56:11,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-10-24 03:56:11,692 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:11,692 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:56:11,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-10-24 03:56:11,693 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:11,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:11,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1833863271, now seen corresponding path program 1 times [2024-10-24 03:56:11,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:11,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767634690] [2024-10-24 03:56:11,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:11,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms