./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../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 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 17:11:12,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 17:11:12,912 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 17:11:12,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 17:11:12,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 17:11:12,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 17:11:12,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 17:11:12,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 17:11:12,948 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 17:11:12,949 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 17:11:12,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 17:11:12,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 17:11:12,951 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 17:11:12,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 17:11:12,952 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 17:11:12,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 17:11:12,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 17:11:12,953 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 17:11:12,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 17:11:12,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 17:11:12,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 17:11:12,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 17:11:12,955 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 17:11:12,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 17:11:12,956 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 17:11:12,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 17:11:12,957 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 17:11:12,957 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 17:11:12,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 17:11:12,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:11:12,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 17:11:12,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 17:11:12,959 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 17:11:12,959 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 17:11:12,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 17:11:12,960 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 17:11:12,960 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 17:11:12,961 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 17:11:12,961 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 17:11:12,961 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff4eead42fe5c3232d9549669a622d0a23554d4f2d3afdf105ae081b78416ec8 [2024-11-18 17:11:13,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 17:11:13,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 17:11:13,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 17:11:13,252 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 17:11:13,253 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 17:11:13,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d64_e0.c [2024-11-18 17:11:14,642 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 17:11:15,032 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 17:11:15,033 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d64_e0.c [2024-11-18 17:11:15,080 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fcc0afef/b1b92cd3528643f3b59e89782fb84f6a/FLAG3f0436757 [2024-11-18 17:11:15,094 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fcc0afef/b1b92cd3528643f3b59e89782fb84f6a [2024-11-18 17:11:15,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 17:11:15,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 17:11:15,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 17:11:15,099 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 17:11:15,103 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 17:11:15,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:15,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@617eb827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15, skipping insertion in model container [2024-11-18 17:11:15,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:15,157 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 17:11:15,385 WARN L250 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] [2024-11-18 17:11:15,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:11:15,721 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 17:11:15,729 WARN L250 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] [2024-11-18 17:11:15,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:11:15,889 INFO L204 MainTranslator]: Completed translation [2024-11-18 17:11:15,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15 WrapperNode [2024-11-18 17:11:15,890 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 17:11:15,891 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 17:11:15,891 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 17:11:15,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 17:11:15,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:15,970 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:16,445 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5533 [2024-11-18 17:11:16,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 17:11:16,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 17:11:16,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 17:11:16,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 17:11:16,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:16,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:16,573 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:16,672 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]. [2024-11-18 17:11:16,673 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:16,673 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:16,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:16,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:16,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:16,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:17,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 17:11:17,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 17:11:17,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 17:11:17,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 17:11:17,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15" (1/1) ... [2024-11-18 17:11:17,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:11:17,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:11:17,153 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) [2024-11-18 17:11:17,162 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 [2024-11-18 17:11:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 17:11:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 17:11:17,201 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 17:11:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 17:11:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 17:11:17,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 17:11:17,527 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 17:11:17,529 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 17:11:23,470 INFO L? ?]: Removed 3109 outVars from TransFormulas that were not future-live. [2024-11-18 17:11:23,470 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 17:11:23,507 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 17:11:23,508 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 17:11:23,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:11:23 BoogieIcfgContainer [2024-11-18 17:11:23,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 17:11:23,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 17:11:23,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 17:11:23,516 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 17:11:23,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:11:15" (1/3) ... [2024-11-18 17:11:23,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f2f389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:11:23, skipping insertion in model container [2024-11-18 17:11:23,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:11:15" (2/3) ... [2024-11-18 17:11:23,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f2f389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:11:23, skipping insertion in model container [2024-11-18 17:11:23,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:11:23" (3/3) ... [2024-11-18 17:11:23,518 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w128_d64_e0.c [2024-11-18 17:11:23,548 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 17:11:23,548 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 17:11:23,625 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 17:11:23,630 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;@7faed45b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 17:11:23,631 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 17:11:23,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 1512 states, 1506 states have (on average 1.49800796812749) internal successors, (2256), 1507 states have internal predecessors, (2256), 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) [2024-11-18 17:11:23,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-18 17:11:23,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:23,667 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] [2024-11-18 17:11:23,667 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:23,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:23,672 INFO L85 PathProgramCache]: Analyzing trace with hash 2128564416, now seen corresponding path program 1 times [2024-11-18 17:11:23,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:23,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328984379] [2024-11-18 17:11:23,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:23,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:24,674 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 17:11:24,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:24,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328984379] [2024-11-18 17:11:24,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328984379] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 17:11:24,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185023256] [2024-11-18 17:11:24,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:24,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 17:11:24,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:11:24,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 17:11:24,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 17:11:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:25,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 2377 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 17:11:25,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:11:25,593 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 17:11:25,593 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 17:11:25,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185023256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:25,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 17:11:25,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 17:11:25,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478236904] [2024-11-18 17:11:25,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:25,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 17:11:25,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:25,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 17:11:25,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 17:11:25,624 INFO L87 Difference]: Start difference. First operand has 1512 states, 1506 states have (on average 1.49800796812749) internal successors, (2256), 1507 states have internal predecessors, (2256), 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 165.5) internal successors, (331), 2 states have internal predecessors, (331), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 17:11:25,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:25,705 INFO L93 Difference]: Finished difference Result 2727 states and 4085 transitions. [2024-11-18 17:11:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 17:11:25,707 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 165.5) internal successors, (331), 2 states have internal predecessors, (331), 2 states have call successors, (3), 2 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 341 [2024-11-18 17:11:25,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:25,724 INFO L225 Difference]: With dead ends: 2727 [2024-11-18 17:11:25,725 INFO L226 Difference]: Without dead ends: 1509 [2024-11-18 17:11:25,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 17:11:25,737 INFO L432 NwaCegarLoop]: 2257 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2257 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:25,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2257 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:11:25,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-18 17:11:25,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2024-11-18 17:11:25,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1504 states have (on average 1.4966755319148937) internal successors, (2251), 1504 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) [2024-11-18 17:11:25,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2257 transitions. [2024-11-18 17:11:25,823 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2257 transitions. Word has length 341 [2024-11-18 17:11:25,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:25,824 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2257 transitions. [2024-11-18 17:11:25,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 165.5) internal successors, (331), 2 states have internal predecessors, (331), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 17:11:25,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2257 transitions. [2024-11-18 17:11:25,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-18 17:11:25,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:25,829 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] [2024-11-18 17:11:25,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 17:11:26,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 17:11:26,031 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:26,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:26,032 INFO L85 PathProgramCache]: Analyzing trace with hash -46000134, now seen corresponding path program 1 times [2024-11-18 17:11:26,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:26,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098551978] [2024-11-18 17:11:26,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:26,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:28,299 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:28,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:28,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098551978] [2024-11-18 17:11:28,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098551978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:28,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:28,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:11:28,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497079082] [2024-11-18 17:11:28,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:28,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:11:28,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:28,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:11:28,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:11:28,307 INFO L87 Difference]: Start difference. First operand 1509 states and 2257 transitions. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 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) [2024-11-18 17:11:28,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:28,374 INFO L93 Difference]: Finished difference Result 1513 states and 2261 transitions. [2024-11-18 17:11:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:28,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 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 [2024-11-18 17:11:28,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:28,382 INFO L225 Difference]: With dead ends: 1513 [2024-11-18 17:11:28,382 INFO L226 Difference]: Without dead ends: 1511 [2024-11-18 17:11:28,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:11:28,385 INFO L432 NwaCegarLoop]: 2255 mSDtfsCounter, 0 mSDsluCounter, 4504 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6759 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:28,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6759 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:11:28,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2024-11-18 17:11:28,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1511. [2024-11-18 17:11:28,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1506 states have (on average 1.49601593625498) internal successors, (2253), 1506 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) [2024-11-18 17:11:28,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2259 transitions. [2024-11-18 17:11:28,412 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2259 transitions. Word has length 341 [2024-11-18 17:11:28,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:28,414 INFO L471 AbstractCegarLoop]: Abstraction has 1511 states and 2259 transitions. [2024-11-18 17:11:28,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 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) [2024-11-18 17:11:28,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2259 transitions. [2024-11-18 17:11:28,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-18 17:11:28,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:28,418 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] [2024-11-18 17:11:28,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 17:11:28,418 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:28,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:28,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1424306928, now seen corresponding path program 1 times [2024-11-18 17:11:28,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:28,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163410115] [2024-11-18 17:11:28,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:28,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:29,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:29,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163410115] [2024-11-18 17:11:29,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163410115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:29,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:29,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:29,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867406755] [2024-11-18 17:11:29,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:29,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:29,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:29,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:29,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:29,472 INFO L87 Difference]: Start difference. First operand 1511 states and 2259 transitions. Second operand has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 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) [2024-11-18 17:11:30,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:30,565 INFO L93 Difference]: Finished difference Result 3771 states and 5641 transitions. [2024-11-18 17:11:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 17:11:30,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 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 [2024-11-18 17:11:30,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:30,573 INFO L225 Difference]: With dead ends: 3771 [2024-11-18 17:11:30,574 INFO L226 Difference]: Without dead ends: 1511 [2024-11-18 17:11:30,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-18 17:11:30,578 INFO L432 NwaCegarLoop]: 2253 mSDtfsCounter, 4786 mSDsluCounter, 4082 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4786 SdHoareTripleChecker+Valid, 6335 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:30,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4786 Valid, 6335 Invalid, 723 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [85 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 17:11:30,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2024-11-18 17:11:30,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1511. [2024-11-18 17:11:30,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1506 states have (on average 1.49535192563081) internal successors, (2252), 1506 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) [2024-11-18 17:11:30,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2258 transitions. [2024-11-18 17:11:30,615 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2258 transitions. Word has length 342 [2024-11-18 17:11:30,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:30,616 INFO L471 AbstractCegarLoop]: Abstraction has 1511 states and 2258 transitions. [2024-11-18 17:11:30,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 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) [2024-11-18 17:11:30,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2258 transitions. [2024-11-18 17:11:30,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-18 17:11:30,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:30,623 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] [2024-11-18 17:11:30,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 17:11:30,623 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:30,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:30,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1097877612, now seen corresponding path program 1 times [2024-11-18 17:11:30,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:30,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859010981] [2024-11-18 17:11:30,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:30,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:32,201 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:32,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:32,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859010981] [2024-11-18 17:11:32,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859010981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:32,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:32,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:11:32,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874935615] [2024-11-18 17:11:32,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:32,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:11:32,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:32,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:11:32,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:11:32,211 INFO L87 Difference]: Start difference. First operand 1511 states and 2258 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) [2024-11-18 17:11:32,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:32,325 INFO L93 Difference]: Finished difference Result 2730 states and 4079 transitions. [2024-11-18 17:11:32,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:32,326 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 [2024-11-18 17:11:32,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:32,333 INFO L225 Difference]: With dead ends: 2730 [2024-11-18 17:11:32,334 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:32,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:11:32,340 INFO L432 NwaCegarLoop]: 2254 mSDtfsCounter, 0 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6752 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:32,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6752 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:11:32,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:32,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:32,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4946949602122015) internal successors, (2254), 1508 states have internal predecessors, (2254), 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) [2024-11-18 17:11:32,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2260 transitions. [2024-11-18 17:11:32,392 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2260 transitions. Word has length 343 [2024-11-18 17:11:32,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:32,397 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2260 transitions. [2024-11-18 17:11:32,397 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) [2024-11-18 17:11:32,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2260 transitions. [2024-11-18 17:11:32,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-18 17:11:32,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:32,405 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] [2024-11-18 17:11:32,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 17:11:32,406 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:32,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:32,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1423496265, now seen corresponding path program 1 times [2024-11-18 17:11:32,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:32,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341956841] [2024-11-18 17:11:32,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:32,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:33,698 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:33,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:33,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341956841] [2024-11-18 17:11:33,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341956841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:33,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:33,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:11:33,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887595467] [2024-11-18 17:11:33,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:33,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:11:33,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:33,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:11:33,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:11:33,701 INFO L87 Difference]: Start difference. First operand 1513 states and 2260 transitions. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 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) [2024-11-18 17:11:34,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:34,175 INFO L93 Difference]: Finished difference Result 2732 states and 4080 transitions. [2024-11-18 17:11:34,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:34,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 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 [2024-11-18 17:11:34,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:34,180 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:34,181 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:34,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:34,183 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 1946 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:34,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1946 Valid, 3870 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:34,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:34,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:34,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4940318302387268) internal successors, (2253), 1508 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) [2024-11-18 17:11:34,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2259 transitions. [2024-11-18 17:11:34,206 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2259 transitions. Word has length 344 [2024-11-18 17:11:34,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:34,207 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2259 transitions. [2024-11-18 17:11:34,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 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) [2024-11-18 17:11:34,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2259 transitions. [2024-11-18 17:11:34,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-18 17:11:34,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:34,210 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] [2024-11-18 17:11:34,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 17:11:34,211 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:34,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:34,212 INFO L85 PathProgramCache]: Analyzing trace with hash 600042379, now seen corresponding path program 1 times [2024-11-18 17:11:34,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:34,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492258205] [2024-11-18 17:11:34,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:34,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:35,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:35,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492258205] [2024-11-18 17:11:35,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492258205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:35,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:35,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:35,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451850663] [2024-11-18 17:11:35,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:35,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:35,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:35,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:35,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:35,013 INFO L87 Difference]: Start difference. First operand 1513 states and 2259 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) [2024-11-18 17:11:35,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:35,423 INFO L93 Difference]: Finished difference Result 2782 states and 4152 transitions. [2024-11-18 17:11:35,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:11:35,426 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 [2024-11-18 17:11:35,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:35,431 INFO L225 Difference]: With dead ends: 2782 [2024-11-18 17:11:35,431 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:35,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:11:35,433 INFO L432 NwaCegarLoop]: 2224 mSDtfsCounter, 2045 mSDsluCounter, 4162 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2045 SdHoareTripleChecker+Valid, 6386 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:35,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2045 Valid, 6386 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:35,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:35,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:35,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.493368700265252) internal successors, (2252), 1508 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) [2024-11-18 17:11:35,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2258 transitions. [2024-11-18 17:11:35,459 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2258 transitions. Word has length 345 [2024-11-18 17:11:35,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:35,459 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2258 transitions. [2024-11-18 17:11:35,460 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) [2024-11-18 17:11:35,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2258 transitions. [2024-11-18 17:11:35,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-18 17:11:35,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:35,462 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] [2024-11-18 17:11:35,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 17:11:35,463 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:35,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:35,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1695552088, now seen corresponding path program 1 times [2024-11-18 17:11:35,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:35,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351954874] [2024-11-18 17:11:35,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:35,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:36,100 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:36,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:36,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351954874] [2024-11-18 17:11:36,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351954874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:36,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:36,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:36,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356750940] [2024-11-18 17:11:36,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:36,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:36,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:36,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:36,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:36,103 INFO L87 Difference]: Start difference. First operand 1513 states and 2258 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) [2024-11-18 17:11:36,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:36,570 INFO L93 Difference]: Finished difference Result 2732 states and 4076 transitions. [2024-11-18 17:11:36,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:36,571 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 [2024-11-18 17:11:36,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:36,575 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:36,575 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:36,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:36,577 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2242 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2245 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:36,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2245 Valid, 3877 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:36,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:36,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:36,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.492705570291777) internal successors, (2251), 1508 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) [2024-11-18 17:11:36,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2257 transitions. [2024-11-18 17:11:36,601 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2257 transitions. Word has length 346 [2024-11-18 17:11:36,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:36,601 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2257 transitions. [2024-11-18 17:11:36,602 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) [2024-11-18 17:11:36,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2257 transitions. [2024-11-18 17:11:36,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-18 17:11:36,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:36,604 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] [2024-11-18 17:11:36,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 17:11:36,605 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:36,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:36,605 INFO L85 PathProgramCache]: Analyzing trace with hash 673496338, now seen corresponding path program 1 times [2024-11-18 17:11:36,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:36,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145312490] [2024-11-18 17:11:36,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:36,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:38,065 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:38,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:38,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145312490] [2024-11-18 17:11:38,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145312490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:38,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:38,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:38,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588729652] [2024-11-18 17:11:38,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:38,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:38,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:38,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:38,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:38,067 INFO L87 Difference]: Start difference. First operand 1513 states and 2257 transitions. Second operand has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 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) [2024-11-18 17:11:38,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:38,547 INFO L93 Difference]: Finished difference Result 2732 states and 4074 transitions. [2024-11-18 17:11:38,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:38,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 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 [2024-11-18 17:11:38,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:38,553 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:38,553 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:38,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:38,555 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2238 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:38,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2241 Valid, 3877 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:38,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:38,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4920424403183024) internal successors, (2250), 1508 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) [2024-11-18 17:11:38,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2256 transitions. [2024-11-18 17:11:38,576 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2256 transitions. Word has length 347 [2024-11-18 17:11:38,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:38,576 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2256 transitions. [2024-11-18 17:11:38,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 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) [2024-11-18 17:11:38,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2256 transitions. [2024-11-18 17:11:38,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-18 17:11:38,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:38,578 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] [2024-11-18 17:11:38,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 17:11:38,579 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:38,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:38,579 INFO L85 PathProgramCache]: Analyzing trace with hash 657634959, now seen corresponding path program 1 times [2024-11-18 17:11:38,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:38,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080767153] [2024-11-18 17:11:38,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:38,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:39,194 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:39,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:39,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080767153] [2024-11-18 17:11:39,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080767153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:39,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:39,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:39,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934554491] [2024-11-18 17:11:39,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:39,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:39,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:39,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:39,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:39,196 INFO L87 Difference]: Start difference. First operand 1513 states and 2256 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) [2024-11-18 17:11:39,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:39,644 INFO L93 Difference]: Finished difference Result 2732 states and 4072 transitions. [2024-11-18 17:11:39,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:39,644 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 [2024-11-18 17:11:39,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:39,649 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:39,649 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:39,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:39,651 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2234 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:39,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2237 Valid, 3877 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:39,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:39,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:39,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4913793103448276) internal successors, (2249), 1508 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) [2024-11-18 17:11:39,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2255 transitions. [2024-11-18 17:11:39,671 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2255 transitions. Word has length 348 [2024-11-18 17:11:39,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:39,671 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2255 transitions. [2024-11-18 17:11:39,671 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) [2024-11-18 17:11:39,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2255 transitions. [2024-11-18 17:11:39,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-18 17:11:39,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:39,673 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] [2024-11-18 17:11:39,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 17:11:39,673 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:39,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:39,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1282570727, now seen corresponding path program 1 times [2024-11-18 17:11:39,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:39,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117259360] [2024-11-18 17:11:39,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:39,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:40,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:40,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:40,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117259360] [2024-11-18 17:11:40,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117259360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:40,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:40,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:40,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922960873] [2024-11-18 17:11:40,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:40,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:40,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:40,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:40,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:40,555 INFO L87 Difference]: Start difference. First operand 1513 states and 2255 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) [2024-11-18 17:11:41,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:41,126 INFO L93 Difference]: Finished difference Result 2732 states and 4070 transitions. [2024-11-18 17:11:41,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:41,127 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 [2024-11-18 17:11:41,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:41,133 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:41,133 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:41,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:41,136 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4207 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4210 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:41,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4210 Valid, 3870 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 17:11:41,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:41,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:41,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.490716180371353) internal successors, (2248), 1508 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) [2024-11-18 17:11:41,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2254 transitions. [2024-11-18 17:11:41,169 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2254 transitions. Word has length 349 [2024-11-18 17:11:41,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:41,170 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2254 transitions. [2024-11-18 17:11:41,170 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) [2024-11-18 17:11:41,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2254 transitions. [2024-11-18 17:11:41,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-18 17:11:41,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:41,175 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] [2024-11-18 17:11:41,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 17:11:41,175 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:41,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:41,176 INFO L85 PathProgramCache]: Analyzing trace with hash -255103242, now seen corresponding path program 1 times [2024-11-18 17:11:41,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:41,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483524795] [2024-11-18 17:11:41,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:41,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:41,989 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:41,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:41,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483524795] [2024-11-18 17:11:41,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483524795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:41,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:41,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:41,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157306713] [2024-11-18 17:11:41,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:41,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:41,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:41,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:41,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:41,993 INFO L87 Difference]: Start difference. First operand 1513 states and 2254 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) [2024-11-18 17:11:42,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:42,507 INFO L93 Difference]: Finished difference Result 2732 states and 4068 transitions. [2024-11-18 17:11:42,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:42,507 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 [2024-11-18 17:11:42,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:42,512 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:42,512 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:42,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:42,514 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2226 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:42,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2229 Valid, 3877 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 17:11:42,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:42,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:42,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.490053050397878) internal successors, (2247), 1508 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) [2024-11-18 17:11:42,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2253 transitions. [2024-11-18 17:11:42,543 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2253 transitions. Word has length 350 [2024-11-18 17:11:42,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:42,544 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2253 transitions. [2024-11-18 17:11:42,544 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) [2024-11-18 17:11:42,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2253 transitions. [2024-11-18 17:11:42,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-18 17:11:42,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:42,548 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] [2024-11-18 17:11:42,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 17:11:42,548 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:42,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:42,549 INFO L85 PathProgramCache]: Analyzing trace with hash -116455776, now seen corresponding path program 1 times [2024-11-18 17:11:42,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:42,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298274776] [2024-11-18 17:11:42,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:42,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:43,495 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:43,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:43,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298274776] [2024-11-18 17:11:43,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298274776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:43,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:43,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:43,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721916948] [2024-11-18 17:11:43,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:43,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:43,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:43,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:43,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:43,499 INFO L87 Difference]: Start difference. First operand 1513 states and 2253 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) [2024-11-18 17:11:44,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:44,018 INFO L93 Difference]: Finished difference Result 2732 states and 4066 transitions. [2024-11-18 17:11:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:44,019 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 [2024-11-18 17:11:44,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:44,025 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:44,025 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:44,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:44,027 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4191 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4194 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:44,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4194 Valid, 3870 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 17:11:44,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:44,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:44,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4893899204244032) internal successors, (2246), 1508 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) [2024-11-18 17:11:44,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2252 transitions. [2024-11-18 17:11:44,054 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2252 transitions. Word has length 351 [2024-11-18 17:11:44,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:44,054 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2252 transitions. [2024-11-18 17:11:44,055 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) [2024-11-18 17:11:44,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2252 transitions. [2024-11-18 17:11:44,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-18 17:11:44,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:44,057 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] [2024-11-18 17:11:44,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 17:11:44,058 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:44,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:44,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1563109667, now seen corresponding path program 1 times [2024-11-18 17:11:44,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:44,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593795570] [2024-11-18 17:11:44,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:44,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:44,654 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:44,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:44,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593795570] [2024-11-18 17:11:44,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593795570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:44,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:44,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:44,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623188635] [2024-11-18 17:11:44,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:44,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:44,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:44,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:44,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:44,657 INFO L87 Difference]: Start difference. First operand 1513 states and 2252 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) [2024-11-18 17:11:45,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:45,146 INFO L93 Difference]: Finished difference Result 2732 states and 4064 transitions. [2024-11-18 17:11:45,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:45,147 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 [2024-11-18 17:11:45,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:45,153 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:45,153 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:45,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:45,155 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2218 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:45,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 3877 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:45,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:45,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:45,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4887267904509285) internal successors, (2245), 1508 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) [2024-11-18 17:11:45,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2251 transitions. [2024-11-18 17:11:45,176 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2251 transitions. Word has length 352 [2024-11-18 17:11:45,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:45,177 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2251 transitions. [2024-11-18 17:11:45,177 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) [2024-11-18 17:11:45,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2251 transitions. [2024-11-18 17:11:45,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-18 17:11:45,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:45,179 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] [2024-11-18 17:11:45,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 17:11:45,180 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:45,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:45,180 INFO L85 PathProgramCache]: Analyzing trace with hash 467271335, now seen corresponding path program 1 times [2024-11-18 17:11:45,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:45,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71764133] [2024-11-18 17:11:45,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:45,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:45,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:45,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71764133] [2024-11-18 17:11:45,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71764133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:45,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:45,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:45,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581920876] [2024-11-18 17:11:45,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:45,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:45,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:45,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:45,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:45,960 INFO L87 Difference]: Start difference. First operand 1513 states and 2251 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) [2024-11-18 17:11:46,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:46,454 INFO L93 Difference]: Finished difference Result 2732 states and 4062 transitions. [2024-11-18 17:11:46,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:46,454 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 [2024-11-18 17:11:46,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:46,460 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:46,460 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:46,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:46,462 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4175 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4178 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:46,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4178 Valid, 3870 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 17:11:46,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:46,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:46,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4880636604774535) internal successors, (2244), 1508 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) [2024-11-18 17:11:46,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2250 transitions. [2024-11-18 17:11:46,483 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2250 transitions. Word has length 353 [2024-11-18 17:11:46,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:46,484 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2250 transitions. [2024-11-18 17:11:46,484 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) [2024-11-18 17:11:46,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2250 transitions. [2024-11-18 17:11:46,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-18 17:11:46,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:46,487 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] [2024-11-18 17:11:46,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 17:11:46,487 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:46,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:46,488 INFO L85 PathProgramCache]: Analyzing trace with hash 302624324, now seen corresponding path program 1 times [2024-11-18 17:11:46,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:46,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14843276] [2024-11-18 17:11:46,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:46,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:47,154 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:47,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:47,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14843276] [2024-11-18 17:11:47,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14843276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:47,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:47,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:47,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770643360] [2024-11-18 17:11:47,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:47,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:47,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:47,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:47,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:47,158 INFO L87 Difference]: Start difference. First operand 1513 states and 2250 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) [2024-11-18 17:11:47,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:47,592 INFO L93 Difference]: Finished difference Result 2732 states and 4060 transitions. [2024-11-18 17:11:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:47,593 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 [2024-11-18 17:11:47,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:47,598 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:47,598 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:47,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:47,601 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2210 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:47,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2213 Valid, 3877 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:47,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:47,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:47,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4874005305039788) internal successors, (2243), 1508 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) [2024-11-18 17:11:47,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2249 transitions. [2024-11-18 17:11:47,618 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2249 transitions. Word has length 354 [2024-11-18 17:11:47,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:47,618 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2249 transitions. [2024-11-18 17:11:47,619 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) [2024-11-18 17:11:47,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2249 transitions. [2024-11-18 17:11:47,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-18 17:11:47,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:47,620 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] [2024-11-18 17:11:47,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 17:11:47,621 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:47,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:47,621 INFO L85 PathProgramCache]: Analyzing trace with hash -817942994, now seen corresponding path program 1 times [2024-11-18 17:11:47,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:47,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148266214] [2024-11-18 17:11:47,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:47,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:48,276 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:48,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:48,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148266214] [2024-11-18 17:11:48,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148266214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:48,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:48,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:48,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799455730] [2024-11-18 17:11:48,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:48,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:48,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:48,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:48,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:48,278 INFO L87 Difference]: Start difference. First operand 1513 states and 2249 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) [2024-11-18 17:11:48,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:48,722 INFO L93 Difference]: Finished difference Result 2732 states and 4058 transitions. [2024-11-18 17:11:48,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:48,723 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 [2024-11-18 17:11:48,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:48,734 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:48,734 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:48,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:48,736 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4159 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4162 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:48,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4162 Valid, 3870 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:48,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:48,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.486737400530504) internal successors, (2242), 1508 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) [2024-11-18 17:11:48,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2248 transitions. [2024-11-18 17:11:48,780 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2248 transitions. Word has length 355 [2024-11-18 17:11:48,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:48,781 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2248 transitions. [2024-11-18 17:11:48,781 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) [2024-11-18 17:11:48,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2248 transitions. [2024-11-18 17:11:48,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-18 17:11:48,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:48,787 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] [2024-11-18 17:11:48,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 17:11:48,788 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:48,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:48,788 INFO L85 PathProgramCache]: Analyzing trace with hash 2093266219, now seen corresponding path program 1 times [2024-11-18 17:11:48,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:48,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115394331] [2024-11-18 17:11:48,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:48,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:49,553 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:49,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:49,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115394331] [2024-11-18 17:11:49,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115394331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:49,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:49,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:49,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230989970] [2024-11-18 17:11:49,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:49,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:49,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:49,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:49,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:49,555 INFO L87 Difference]: Start difference. First operand 1513 states and 2248 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) [2024-11-18 17:11:50,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:50,238 INFO L93 Difference]: Finished difference Result 2732 states and 4056 transitions. [2024-11-18 17:11:50,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:50,239 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 [2024-11-18 17:11:50,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:50,244 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:50,244 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:50,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:50,251 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4151 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4154 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:50,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4154 Valid, 3870 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 17:11:50,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:50,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:50,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4860742705570291) internal successors, (2241), 1508 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) [2024-11-18 17:11:50,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2247 transitions. [2024-11-18 17:11:50,303 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2247 transitions. Word has length 356 [2024-11-18 17:11:50,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:50,306 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2247 transitions. [2024-11-18 17:11:50,306 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) [2024-11-18 17:11:50,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2247 transitions. [2024-11-18 17:11:50,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-18 17:11:50,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:50,309 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] [2024-11-18 17:11:50,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 17:11:50,309 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:50,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:50,310 INFO L85 PathProgramCache]: Analyzing trace with hash -156281547, now seen corresponding path program 1 times [2024-11-18 17:11:50,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:50,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716618187] [2024-11-18 17:11:50,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:50,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:51,014 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:51,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:51,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716618187] [2024-11-18 17:11:51,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716618187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:51,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:51,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:51,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206491605] [2024-11-18 17:11:51,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:51,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:51,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:51,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:51,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:51,018 INFO L87 Difference]: Start difference. First operand 1513 states and 2247 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) [2024-11-18 17:11:51,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:51,546 INFO L93 Difference]: Finished difference Result 2732 states and 4054 transitions. [2024-11-18 17:11:51,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:51,547 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 [2024-11-18 17:11:51,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:51,552 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:51,552 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:51,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:51,556 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4143 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4146 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:51,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4146 Valid, 3870 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 17:11:51,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:51,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:51,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4854111405835544) internal successors, (2240), 1508 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) [2024-11-18 17:11:51,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2246 transitions. [2024-11-18 17:11:51,578 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2246 transitions. Word has length 357 [2024-11-18 17:11:51,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:51,578 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2246 transitions. [2024-11-18 17:11:51,579 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) [2024-11-18 17:11:51,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2246 transitions. [2024-11-18 17:11:51,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-18 17:11:51,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:51,581 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] [2024-11-18 17:11:51,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 17:11:51,582 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:51,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:51,582 INFO L85 PathProgramCache]: Analyzing trace with hash -889148526, now seen corresponding path program 1 times [2024-11-18 17:11:51,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:51,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123898285] [2024-11-18 17:11:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:51,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:52,337 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:52,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:52,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123898285] [2024-11-18 17:11:52,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123898285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:52,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:52,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:52,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405340678] [2024-11-18 17:11:52,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:52,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:52,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:52,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:52,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:52,340 INFO L87 Difference]: Start difference. First operand 1513 states and 2246 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) [2024-11-18 17:11:52,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:52,784 INFO L93 Difference]: Finished difference Result 2732 states and 4052 transitions. [2024-11-18 17:11:52,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:52,785 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 [2024-11-18 17:11:52,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:52,788 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:52,788 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:52,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:52,790 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4135 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4138 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:52,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4138 Valid, 3870 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:52,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:52,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:52,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4847480106100797) internal successors, (2239), 1508 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) [2024-11-18 17:11:52,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2245 transitions. [2024-11-18 17:11:52,813 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2245 transitions. Word has length 358 [2024-11-18 17:11:52,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:52,813 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2245 transitions. [2024-11-18 17:11:52,813 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) [2024-11-18 17:11:52,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2245 transitions. [2024-11-18 17:11:52,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-18 17:11:52,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:52,817 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] [2024-11-18 17:11:52,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 17:11:52,817 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:52,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:52,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1169896380, now seen corresponding path program 1 times [2024-11-18 17:11:52,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:52,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391126478] [2024-11-18 17:11:52,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:52,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:53,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:53,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391126478] [2024-11-18 17:11:53,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391126478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:53,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:53,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:53,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392517505] [2024-11-18 17:11:53,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:53,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:53,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:53,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:53,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:53,587 INFO L87 Difference]: Start difference. First operand 1513 states and 2245 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) [2024-11-18 17:11:54,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:54,016 INFO L93 Difference]: Finished difference Result 2732 states and 4050 transitions. [2024-11-18 17:11:54,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:54,017 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 [2024-11-18 17:11:54,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:54,019 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:54,019 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:54,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:54,021 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2190 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2193 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:54,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2193 Valid, 3877 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:54,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:54,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:54,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4840848806366047) internal successors, (2238), 1508 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) [2024-11-18 17:11:54,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2244 transitions. [2024-11-18 17:11:54,040 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2244 transitions. Word has length 359 [2024-11-18 17:11:54,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:54,041 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2244 transitions. [2024-11-18 17:11:54,042 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) [2024-11-18 17:11:54,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2244 transitions. [2024-11-18 17:11:54,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-11-18 17:11:54,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:54,045 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] [2024-11-18 17:11:54,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 17:11:54,045 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:54,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:54,046 INFO L85 PathProgramCache]: Analyzing trace with hash -833072775, now seen corresponding path program 1 times [2024-11-18 17:11:54,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:54,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738490699] [2024-11-18 17:11:54,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:54,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:54,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:54,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738490699] [2024-11-18 17:11:54,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738490699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:54,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:54,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:54,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985466500] [2024-11-18 17:11:54,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:54,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:54,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:54,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:54,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:54,606 INFO L87 Difference]: Start difference. First operand 1513 states and 2244 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) [2024-11-18 17:11:55,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:55,060 INFO L93 Difference]: Finished difference Result 2732 states and 4048 transitions. [2024-11-18 17:11:55,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:55,061 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 [2024-11-18 17:11:55,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:55,064 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:55,064 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:55,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:55,066 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4119 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4122 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:55,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4122 Valid, 3870 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:55,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:55,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:55,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.48342175066313) internal successors, (2237), 1508 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) [2024-11-18 17:11:55,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2243 transitions. [2024-11-18 17:11:55,085 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2243 transitions. Word has length 360 [2024-11-18 17:11:55,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:55,086 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2243 transitions. [2024-11-18 17:11:55,086 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) [2024-11-18 17:11:55,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2243 transitions. [2024-11-18 17:11:55,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-18 17:11:55,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:55,089 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] [2024-11-18 17:11:55,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 17:11:55,089 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:55,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:55,089 INFO L85 PathProgramCache]: Analyzing trace with hash -535590461, now seen corresponding path program 1 times [2024-11-18 17:11:55,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:55,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601907047] [2024-11-18 17:11:55,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:55,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:55,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:55,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601907047] [2024-11-18 17:11:55,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601907047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:55,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:55,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:55,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776802131] [2024-11-18 17:11:55,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:55,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:55,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:55,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:55,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:55,583 INFO L87 Difference]: Start difference. First operand 1513 states and 2243 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) [2024-11-18 17:11:55,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:55,967 INFO L93 Difference]: Finished difference Result 2732 states and 4046 transitions. [2024-11-18 17:11:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:55,968 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 [2024-11-18 17:11:55,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:55,970 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:55,970 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:55,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:55,974 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4111 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4114 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:55,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4114 Valid, 3870 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:55,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:55,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:55,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4827586206896552) internal successors, (2236), 1508 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) [2024-11-18 17:11:55,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2242 transitions. [2024-11-18 17:11:55,991 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2242 transitions. Word has length 361 [2024-11-18 17:11:55,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:55,991 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2242 transitions. [2024-11-18 17:11:55,991 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) [2024-11-18 17:11:55,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2242 transitions. [2024-11-18 17:11:55,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-11-18 17:11:55,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:55,993 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] [2024-11-18 17:11:55,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 17:11:55,994 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:55,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:55,994 INFO L85 PathProgramCache]: Analyzing trace with hash -2113509664, now seen corresponding path program 1 times [2024-11-18 17:11:55,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:55,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720741491] [2024-11-18 17:11:55,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:55,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:56,704 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:56,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:56,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720741491] [2024-11-18 17:11:56,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720741491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:56,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:56,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:56,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108148171] [2024-11-18 17:11:56,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:56,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:56,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:56,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:56,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:56,706 INFO L87 Difference]: Start difference. First operand 1513 states and 2242 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) [2024-11-18 17:11:57,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:57,199 INFO L93 Difference]: Finished difference Result 2732 states and 4044 transitions. [2024-11-18 17:11:57,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:57,200 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 [2024-11-18 17:11:57,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:57,202 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:57,202 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:57,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:57,204 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4103 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4106 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:57,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4106 Valid, 3870 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 17:11:57,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:57,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:57,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4820954907161803) internal successors, (2235), 1508 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) [2024-11-18 17:11:57,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2241 transitions. [2024-11-18 17:11:57,216 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2241 transitions. Word has length 362 [2024-11-18 17:11:57,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:57,216 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2241 transitions. [2024-11-18 17:11:57,217 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) [2024-11-18 17:11:57,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2241 transitions. [2024-11-18 17:11:57,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-11-18 17:11:57,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:57,219 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] [2024-11-18 17:11:57,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 17:11:57,219 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:57,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:57,219 INFO L85 PathProgramCache]: Analyzing trace with hash -108456118, now seen corresponding path program 1 times [2024-11-18 17:11:57,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:57,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181908373] [2024-11-18 17:11:57,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:57,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:57,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:57,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181908373] [2024-11-18 17:11:57,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181908373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:57,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:57,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:57,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985705270] [2024-11-18 17:11:57,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:57,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:57,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:57,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:57,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:57,760 INFO L87 Difference]: Start difference. First operand 1513 states and 2241 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) [2024-11-18 17:11:58,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:58,223 INFO L93 Difference]: Finished difference Result 2732 states and 4042 transitions. [2024-11-18 17:11:58,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:58,224 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 [2024-11-18 17:11:58,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:58,228 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:58,229 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:58,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:58,232 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2174 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2177 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:58,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2177 Valid, 3877 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:58,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:58,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:58,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4814323607427056) internal successors, (2234), 1508 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) [2024-11-18 17:11:58,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2240 transitions. [2024-11-18 17:11:58,249 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2240 transitions. Word has length 363 [2024-11-18 17:11:58,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:58,250 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2240 transitions. [2024-11-18 17:11:58,250 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) [2024-11-18 17:11:58,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2240 transitions. [2024-11-18 17:11:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-18 17:11:58,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:58,252 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, 1, 1, 1, 1, 1] [2024-11-18 17:11:58,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 17:11:58,252 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:58,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:58,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1256565703, now seen corresponding path program 1 times [2024-11-18 17:11:58,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:58,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113842972] [2024-11-18 17:11:58,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:58,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:58,732 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:58,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:58,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113842972] [2024-11-18 17:11:58,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113842972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:58,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:58,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:58,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989673552] [2024-11-18 17:11:58,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:58,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:58,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:58,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:58,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:58,734 INFO L87 Difference]: Start difference. First operand 1513 states and 2240 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) [2024-11-18 17:11:59,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:11:59,136 INFO L93 Difference]: Finished difference Result 2732 states and 4040 transitions. [2024-11-18 17:11:59,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:11:59,136 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 [2024-11-18 17:11:59,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:11:59,139 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:11:59,140 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:11:59,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:11:59,142 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4087 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4090 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:11:59,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4090 Valid, 3870 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:11:59,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:11:59,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:11:59,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4807692307692308) internal successors, (2233), 1508 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) [2024-11-18 17:11:59,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2239 transitions. [2024-11-18 17:11:59,161 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2239 transitions. Word has length 364 [2024-11-18 17:11:59,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:11:59,161 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2239 transitions. [2024-11-18 17:11:59,162 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) [2024-11-18 17:11:59,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2239 transitions. [2024-11-18 17:11:59,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-18 17:11:59,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:11:59,164 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] [2024-11-18 17:11:59,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 17:11:59,164 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:11:59,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:11:59,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1980537937, now seen corresponding path program 1 times [2024-11-18 17:11:59,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:11:59,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828103476] [2024-11-18 17:11:59,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:11:59,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:11:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:11:59,724 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:11:59,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:11:59,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828103476] [2024-11-18 17:11:59,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828103476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:11:59,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:11:59,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:11:59,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248583728] [2024-11-18 17:11:59,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:11:59,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:11:59,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:11:59,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:11:59,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:11:59,726 INFO L87 Difference]: Start difference. First operand 1513 states and 2239 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) [2024-11-18 17:12:00,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:00,127 INFO L93 Difference]: Finished difference Result 2732 states and 4038 transitions. [2024-11-18 17:12:00,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:00,128 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 [2024-11-18 17:12:00,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:00,131 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:00,131 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:00,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:00,133 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4079 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4082 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:00,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4082 Valid, 3870 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:12:00,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:00,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:00,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4801061007957559) internal successors, (2232), 1508 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) [2024-11-18 17:12:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2238 transitions. [2024-11-18 17:12:00,151 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2238 transitions. Word has length 365 [2024-11-18 17:12:00,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:00,152 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2238 transitions. [2024-11-18 17:12:00,152 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) [2024-11-18 17:12:00,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2238 transitions. [2024-11-18 17:12:00,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-18 17:12:00,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:00,155 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] [2024-11-18 17:12:00,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 17:12:00,155 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:00,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:00,156 INFO L85 PathProgramCache]: Analyzing trace with hash 930144302, now seen corresponding path program 1 times [2024-11-18 17:12:00,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:00,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043745481] [2024-11-18 17:12:00,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:00,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:00,746 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:00,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:00,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043745481] [2024-11-18 17:12:00,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043745481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:00,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:00,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:00,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564911876] [2024-11-18 17:12:00,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:00,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:00,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:00,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:00,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:00,748 INFO L87 Difference]: Start difference. First operand 1513 states and 2238 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) [2024-11-18 17:12:01,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:01,191 INFO L93 Difference]: Finished difference Result 2732 states and 4036 transitions. [2024-11-18 17:12:01,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:01,192 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 [2024-11-18 17:12:01,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:01,195 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:01,195 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:01,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:01,198 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4071 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4074 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:01,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4074 Valid, 3870 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:12:01,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:01,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:01,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4794429708222812) internal successors, (2231), 1508 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) [2024-11-18 17:12:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2237 transitions. [2024-11-18 17:12:01,215 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2237 transitions. Word has length 366 [2024-11-18 17:12:01,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:01,216 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2237 transitions. [2024-11-18 17:12:01,216 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) [2024-11-18 17:12:01,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2237 transitions. [2024-11-18 17:12:01,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-18 17:12:01,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:01,218 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] [2024-11-18 17:12:01,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 17:12:01,219 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:01,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:01,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1985029928, now seen corresponding path program 1 times [2024-11-18 17:12:01,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:01,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201910197] [2024-11-18 17:12:01,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:01,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:01,795 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:01,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:01,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201910197] [2024-11-18 17:12:01,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201910197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:01,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:01,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:01,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353315848] [2024-11-18 17:12:01,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:01,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:01,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:01,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:01,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:01,797 INFO L87 Difference]: Start difference. First operand 1513 states and 2237 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) [2024-11-18 17:12:02,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:02,189 INFO L93 Difference]: Finished difference Result 2732 states and 4034 transitions. [2024-11-18 17:12:02,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:02,190 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 [2024-11-18 17:12:02,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:02,192 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:02,192 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:02,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:02,194 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2158 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:02,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 3877 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:12:02,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:02,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:02,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4787798408488064) internal successors, (2230), 1508 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) [2024-11-18 17:12:02,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2236 transitions. [2024-11-18 17:12:02,206 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2236 transitions. Word has length 367 [2024-11-18 17:12:02,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:02,206 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2236 transitions. [2024-11-18 17:12:02,207 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) [2024-11-18 17:12:02,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2236 transitions. [2024-11-18 17:12:02,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-18 17:12:02,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:02,208 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] [2024-11-18 17:12:02,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 17:12:02,208 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:02,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:02,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1069728789, now seen corresponding path program 1 times [2024-11-18 17:12:02,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:02,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206790148] [2024-11-18 17:12:02,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:02,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:02,771 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:02,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:02,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206790148] [2024-11-18 17:12:02,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206790148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:02,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:02,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:02,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503264265] [2024-11-18 17:12:02,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:02,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:02,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:02,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:02,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:02,774 INFO L87 Difference]: Start difference. First operand 1513 states and 2236 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) [2024-11-18 17:12:03,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:03,234 INFO L93 Difference]: Finished difference Result 2732 states and 4032 transitions. [2024-11-18 17:12:03,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:03,234 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 [2024-11-18 17:12:03,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:03,236 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:03,236 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:03,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:03,238 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4055 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4058 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:03,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4058 Valid, 3870 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:12:03,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:03,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:03,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4781167108753315) internal successors, (2229), 1508 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) [2024-11-18 17:12:03,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2235 transitions. [2024-11-18 17:12:03,250 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2235 transitions. Word has length 368 [2024-11-18 17:12:03,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:03,251 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2235 transitions. [2024-11-18 17:12:03,251 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) [2024-11-18 17:12:03,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2235 transitions. [2024-11-18 17:12:03,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-18 17:12:03,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:03,253 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] [2024-11-18 17:12:03,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 17:12:03,253 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:03,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:03,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1486916831, now seen corresponding path program 1 times [2024-11-18 17:12:03,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:03,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273495740] [2024-11-18 17:12:03,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:03,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:03,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:03,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:03,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273495740] [2024-11-18 17:12:03,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273495740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:03,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:03,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:03,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747076842] [2024-11-18 17:12:03,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:03,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:03,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:03,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:03,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:03,846 INFO L87 Difference]: Start difference. First operand 1513 states and 2235 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) [2024-11-18 17:12:04,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:04,191 INFO L93 Difference]: Finished difference Result 2732 states and 4030 transitions. [2024-11-18 17:12:04,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:04,192 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 [2024-11-18 17:12:04,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:04,194 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:04,195 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:04,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:04,201 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4047 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4050 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:04,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4050 Valid, 3870 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 17:12:04,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:04,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:04,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4774535809018567) internal successors, (2228), 1508 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) [2024-11-18 17:12:04,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2234 transitions. [2024-11-18 17:12:04,230 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2234 transitions. Word has length 369 [2024-11-18 17:12:04,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:04,230 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2234 transitions. [2024-11-18 17:12:04,230 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) [2024-11-18 17:12:04,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2234 transitions. [2024-11-18 17:12:04,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2024-11-18 17:12:04,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:04,232 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] [2024-11-18 17:12:04,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 17:12:04,232 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:04,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:04,233 INFO L85 PathProgramCache]: Analyzing trace with hash -2053761156, now seen corresponding path program 1 times [2024-11-18 17:12:04,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:04,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679060570] [2024-11-18 17:12:04,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:04,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:04,772 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:04,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:04,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679060570] [2024-11-18 17:12:04,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679060570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:04,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:04,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:04,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622690058] [2024-11-18 17:12:04,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:04,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:04,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:04,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:04,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:04,774 INFO L87 Difference]: Start difference. First operand 1513 states and 2234 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) [2024-11-18 17:12:05,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:05,140 INFO L93 Difference]: Finished difference Result 2732 states and 4028 transitions. [2024-11-18 17:12:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:05,141 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 [2024-11-18 17:12:05,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:05,143 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:05,143 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:05,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:05,145 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4033 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4036 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:05,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4036 Valid, 3870 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 17:12:05,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:05,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:05,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.476790450928382) internal successors, (2227), 1508 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) [2024-11-18 17:12:05,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2233 transitions. [2024-11-18 17:12:05,170 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2233 transitions. Word has length 370 [2024-11-18 17:12:05,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:05,171 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2233 transitions. [2024-11-18 17:12:05,171 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) [2024-11-18 17:12:05,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2233 transitions. [2024-11-18 17:12:05,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2024-11-18 17:12:05,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:05,176 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] [2024-11-18 17:12:05,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-18 17:12:05,177 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:05,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:05,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1362607649, now seen corresponding path program 1 times [2024-11-18 17:12:05,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:05,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352405199] [2024-11-18 17:12:05,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:05,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:05,903 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:05,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:05,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352405199] [2024-11-18 17:12:05,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352405199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:05,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:05,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:05,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786966768] [2024-11-18 17:12:05,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:05,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:05,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:05,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:05,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:05,905 INFO L87 Difference]: Start difference. First operand 1513 states and 2233 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) [2024-11-18 17:12:06,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:06,562 INFO L93 Difference]: Finished difference Result 2732 states and 4026 transitions. [2024-11-18 17:12:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:06,563 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 [2024-11-18 17:12:06,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:06,566 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:06,567 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:06,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:06,569 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2139 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:06,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 3877 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 17:12:06,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:06,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.476127320954907) internal successors, (2226), 1508 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) [2024-11-18 17:12:06,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2232 transitions. [2024-11-18 17:12:06,587 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2232 transitions. Word has length 371 [2024-11-18 17:12:06,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:06,587 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2232 transitions. [2024-11-18 17:12:06,587 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) [2024-11-18 17:12:06,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2232 transitions. [2024-11-18 17:12:06,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-18 17:12:06,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:06,589 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] [2024-11-18 17:12:06,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 17:12:06,589 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:06,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:06,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1558759531, now seen corresponding path program 1 times [2024-11-18 17:12:06,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:06,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377298042] [2024-11-18 17:12:06,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:06,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:07,218 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:07,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:07,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377298042] [2024-11-18 17:12:07,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377298042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:07,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:07,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:07,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042997427] [2024-11-18 17:12:07,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:07,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:07,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:07,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:07,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:07,221 INFO L87 Difference]: Start difference. First operand 1513 states and 2232 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) [2024-11-18 17:12:07,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:07,699 INFO L93 Difference]: Finished difference Result 2732 states and 4024 transitions. [2024-11-18 17:12:07,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:07,700 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 [2024-11-18 17:12:07,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:07,702 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:07,702 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:07,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:07,704 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2135 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2138 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:07,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2138 Valid, 3877 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:12:07,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:07,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:07,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4754641909814323) internal successors, (2225), 1508 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) [2024-11-18 17:12:07,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2231 transitions. [2024-11-18 17:12:07,715 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2231 transitions. Word has length 372 [2024-11-18 17:12:07,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:07,716 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2231 transitions. [2024-11-18 17:12:07,716 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) [2024-11-18 17:12:07,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2231 transitions. [2024-11-18 17:12:07,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-18 17:12:07,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:07,718 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] [2024-11-18 17:12:07,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-18 17:12:07,718 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:07,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:07,718 INFO L85 PathProgramCache]: Analyzing trace with hash 168191640, now seen corresponding path program 1 times [2024-11-18 17:12:07,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:07,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273657355] [2024-11-18 17:12:07,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:07,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:08,439 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:08,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:08,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273657355] [2024-11-18 17:12:08,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273657355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:08,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:08,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:08,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366234280] [2024-11-18 17:12:08,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:08,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:08,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:08,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:08,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:08,442 INFO L87 Difference]: Start difference. First operand 1513 states and 2231 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) [2024-11-18 17:12:08,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:08,753 INFO L93 Difference]: Finished difference Result 2732 states and 4022 transitions. [2024-11-18 17:12:08,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:08,754 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 [2024-11-18 17:12:08,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:08,756 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:08,756 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:08,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:08,759 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4009 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4012 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:08,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4012 Valid, 3870 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 17:12:08,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:08,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:08,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4748010610079576) internal successors, (2224), 1508 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) [2024-11-18 17:12:08,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2230 transitions. [2024-11-18 17:12:08,773 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2230 transitions. Word has length 373 [2024-11-18 17:12:08,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:08,774 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2230 transitions. [2024-11-18 17:12:08,775 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) [2024-11-18 17:12:08,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2230 transitions. [2024-11-18 17:12:08,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2024-11-18 17:12:08,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:08,777 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] [2024-11-18 17:12:08,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-18 17:12:08,777 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:08,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:08,778 INFO L85 PathProgramCache]: Analyzing trace with hash -920539090, now seen corresponding path program 1 times [2024-11-18 17:12:08,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:08,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158065318] [2024-11-18 17:12:08,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:08,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:09,518 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:09,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:09,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158065318] [2024-11-18 17:12:09,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158065318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:09,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:09,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:09,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716707958] [2024-11-18 17:12:09,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:09,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:09,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:09,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:09,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:09,522 INFO L87 Difference]: Start difference. First operand 1513 states and 2230 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) [2024-11-18 17:12:09,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:09,914 INFO L93 Difference]: Finished difference Result 2732 states and 4020 transitions. [2024-11-18 17:12:09,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:09,915 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 [2024-11-18 17:12:09,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:09,917 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:09,918 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:09,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:09,921 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4001 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4004 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:09,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4004 Valid, 3870 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:12:09,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:09,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:09,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4741379310344827) internal successors, (2223), 1508 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) [2024-11-18 17:12:09,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2229 transitions. [2024-11-18 17:12:09,939 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2229 transitions. Word has length 374 [2024-11-18 17:12:09,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:09,940 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2229 transitions. [2024-11-18 17:12:09,940 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) [2024-11-18 17:12:09,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2229 transitions. [2024-11-18 17:12:09,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-11-18 17:12:09,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:09,942 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] [2024-11-18 17:12:09,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-18 17:12:09,942 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:09,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:09,943 INFO L85 PathProgramCache]: Analyzing trace with hash 606006225, now seen corresponding path program 1 times [2024-11-18 17:12:09,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:09,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970139247] [2024-11-18 17:12:09,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:09,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:10,628 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:10,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:10,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970139247] [2024-11-18 17:12:10,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970139247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:10,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:10,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:10,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462918575] [2024-11-18 17:12:10,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:10,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:10,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:10,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:10,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:10,631 INFO L87 Difference]: Start difference. First operand 1513 states and 2229 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) [2024-11-18 17:12:10,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:10,996 INFO L93 Difference]: Finished difference Result 2732 states and 4018 transitions. [2024-11-18 17:12:10,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:10,997 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 [2024-11-18 17:12:10,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:10,999 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:10,999 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:11,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:11,000 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 3993 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3996 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:11,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3996 Valid, 3870 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 17:12:11,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:11,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:11,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.473474801061008) internal successors, (2222), 1508 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) [2024-11-18 17:12:11,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2228 transitions. [2024-11-18 17:12:11,013 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2228 transitions. Word has length 375 [2024-11-18 17:12:11,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:11,013 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2228 transitions. [2024-11-18 17:12:11,013 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) [2024-11-18 17:12:11,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2228 transitions. [2024-11-18 17:12:11,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-18 17:12:11,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:11,015 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] [2024-11-18 17:12:11,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-18 17:12:11,015 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:11,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:11,016 INFO L85 PathProgramCache]: Analyzing trace with hash 434946375, now seen corresponding path program 1 times [2024-11-18 17:12:11,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:11,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802447890] [2024-11-18 17:12:11,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:11,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:11,782 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:11,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:11,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802447890] [2024-11-18 17:12:11,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802447890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:11,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:11,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:12:11,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548297838] [2024-11-18 17:12:11,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:11,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:12:11,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:11,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:12:11,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:11,785 INFO L87 Difference]: Start difference. First operand 1513 states and 2228 transitions. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 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) [2024-11-18 17:12:12,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:12,019 INFO L93 Difference]: Finished difference Result 2732 states and 4016 transitions. [2024-11-18 17:12:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:12,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 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 [2024-11-18 17:12:12,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:12,021 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:12,021 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:12,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:12,024 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 1968 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:12,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1968 Valid, 4126 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:12,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:12,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:12,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4728116710875332) internal successors, (2221), 1508 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) [2024-11-18 17:12:12,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2227 transitions. [2024-11-18 17:12:12,037 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2227 transitions. Word has length 376 [2024-11-18 17:12:12,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:12,038 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2227 transitions. [2024-11-18 17:12:12,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 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) [2024-11-18 17:12:12,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2227 transitions. [2024-11-18 17:12:12,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-11-18 17:12:12,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:12,040 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] [2024-11-18 17:12:12,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-18 17:12:12,040 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:12,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:12,042 INFO L85 PathProgramCache]: Analyzing trace with hash 2066776024, now seen corresponding path program 1 times [2024-11-18 17:12:12,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:12,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444874591] [2024-11-18 17:12:12,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:12,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:12,603 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:12,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:12,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444874591] [2024-11-18 17:12:12,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444874591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:12,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:12,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:12,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444082269] [2024-11-18 17:12:12,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:12,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:12,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:12,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:12,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:12,607 INFO L87 Difference]: Start difference. First operand 1513 states and 2227 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) [2024-11-18 17:12:12,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:12,829 INFO L93 Difference]: Finished difference Result 2760 states and 4055 transitions. [2024-11-18 17:12:12,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:12:12,829 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 [2024-11-18 17:12:12,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:12,831 INFO L225 Difference]: With dead ends: 2760 [2024-11-18 17:12:12,831 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:12,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:12:12,833 INFO L432 NwaCegarLoop]: 2203 mSDtfsCounter, 2023 mSDsluCounter, 4269 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2023 SdHoareTripleChecker+Valid, 6472 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:12,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2023 Valid, 6472 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:12,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:12,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:12,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4721485411140585) internal successors, (2220), 1508 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) [2024-11-18 17:12:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2226 transitions. [2024-11-18 17:12:12,845 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2226 transitions. Word has length 377 [2024-11-18 17:12:12,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:12,846 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2226 transitions. [2024-11-18 17:12:12,846 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) [2024-11-18 17:12:12,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2226 transitions. [2024-11-18 17:12:12,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-18 17:12:12,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:12,847 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] [2024-11-18 17:12:12,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-18 17:12:12,848 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:12,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:12,848 INFO L85 PathProgramCache]: Analyzing trace with hash -796000891, now seen corresponding path program 1 times [2024-11-18 17:12:12,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:12,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161085614] [2024-11-18 17:12:12,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:12,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:13,455 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:13,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:13,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161085614] [2024-11-18 17:12:13,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161085614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:13,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:13,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:13,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853694251] [2024-11-18 17:12:13,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:13,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:13,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:13,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:13,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:13,457 INFO L87 Difference]: Start difference. First operand 1513 states and 2226 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) [2024-11-18 17:12:13,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:13,676 INFO L93 Difference]: Finished difference Result 2732 states and 4012 transitions. [2024-11-18 17:12:13,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:13,677 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 [2024-11-18 17:12:13,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:13,679 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:13,679 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:13,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:13,680 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 2210 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:13,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2213 Valid, 4133 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:13,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:13,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:13,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4714854111405835) internal successors, (2219), 1508 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) [2024-11-18 17:12:13,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2225 transitions. [2024-11-18 17:12:13,693 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2225 transitions. Word has length 378 [2024-11-18 17:12:13,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:13,693 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2225 transitions. [2024-11-18 17:12:13,694 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) [2024-11-18 17:12:13,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2225 transitions. [2024-11-18 17:12:13,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-11-18 17:12:13,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:13,695 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] [2024-11-18 17:12:13,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-18 17:12:13,696 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:13,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:13,696 INFO L85 PathProgramCache]: Analyzing trace with hash -492958881, now seen corresponding path program 1 times [2024-11-18 17:12:13,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:13,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295470451] [2024-11-18 17:12:13,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:13,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:14,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:14,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295470451] [2024-11-18 17:12:14,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295470451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:14,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:14,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:14,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785146859] [2024-11-18 17:12:14,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:14,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:14,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:14,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:14,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:14,185 INFO L87 Difference]: Start difference. First operand 1513 states and 2225 transitions. Second operand has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 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) [2024-11-18 17:12:14,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:14,414 INFO L93 Difference]: Finished difference Result 2732 states and 4010 transitions. [2024-11-18 17:12:14,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:14,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 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 [2024-11-18 17:12:14,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:14,416 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:14,416 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:14,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:14,417 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 4191 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4194 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:14,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4194 Valid, 4126 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:14,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:14,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:14,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4708222811671088) internal successors, (2218), 1508 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) [2024-11-18 17:12:14,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2224 transitions. [2024-11-18 17:12:14,429 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2224 transitions. Word has length 379 [2024-11-18 17:12:14,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:14,430 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2224 transitions. [2024-11-18 17:12:14,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 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) [2024-11-18 17:12:14,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2224 transitions. [2024-11-18 17:12:14,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-11-18 17:12:14,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:14,432 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] [2024-11-18 17:12:14,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-18 17:12:14,432 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:14,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:14,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1002953836, now seen corresponding path program 1 times [2024-11-18 17:12:14,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:14,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353437190] [2024-11-18 17:12:14,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:14,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:14,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:14,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353437190] [2024-11-18 17:12:14,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353437190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:14,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:14,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:14,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554610680] [2024-11-18 17:12:14,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:14,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:14,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:14,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:14,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:14,970 INFO L87 Difference]: Start difference. First operand 1513 states and 2224 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) [2024-11-18 17:12:15,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:15,225 INFO L93 Difference]: Finished difference Result 2732 states and 4008 transitions. [2024-11-18 17:12:15,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:15,225 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 [2024-11-18 17:12:15,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:15,228 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:15,228 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:15,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:15,230 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 2202 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:15,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 4133 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:15,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:15,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:15,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.470159151193634) internal successors, (2217), 1508 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) [2024-11-18 17:12:15,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2223 transitions. [2024-11-18 17:12:15,248 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2223 transitions. Word has length 380 [2024-11-18 17:12:15,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:15,248 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2223 transitions. [2024-11-18 17:12:15,248 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) [2024-11-18 17:12:15,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2223 transitions. [2024-11-18 17:12:15,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2024-11-18 17:12:15,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:15,251 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] [2024-11-18 17:12:15,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-18 17:12:15,251 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:15,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:15,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1606218138, now seen corresponding path program 1 times [2024-11-18 17:12:15,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:15,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249992287] [2024-11-18 17:12:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:15,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:15,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:15,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249992287] [2024-11-18 17:12:15,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249992287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:15,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:15,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:15,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794248310] [2024-11-18 17:12:15,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:15,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:15,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:15,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:15,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:15,818 INFO L87 Difference]: Start difference. First operand 1513 states and 2223 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) [2024-11-18 17:12:16,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:16,075 INFO L93 Difference]: Finished difference Result 2732 states and 4006 transitions. [2024-11-18 17:12:16,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:16,075 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 [2024-11-18 17:12:16,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:16,078 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:16,078 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:16,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:16,080 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 4175 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4178 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:16,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4178 Valid, 4126 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:16,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:16,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:16,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.469496021220159) internal successors, (2216), 1508 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) [2024-11-18 17:12:16,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2222 transitions. [2024-11-18 17:12:16,097 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2222 transitions. Word has length 381 [2024-11-18 17:12:16,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:16,098 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2222 transitions. [2024-11-18 17:12:16,098 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) [2024-11-18 17:12:16,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2222 transitions. [2024-11-18 17:12:16,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-11-18 17:12:16,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:16,100 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] [2024-11-18 17:12:16,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-18 17:12:16,100 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:16,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:16,101 INFO L85 PathProgramCache]: Analyzing trace with hash -941610285, now seen corresponding path program 1 times [2024-11-18 17:12:16,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:16,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338486496] [2024-11-18 17:12:16,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:16,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:16,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:16,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338486496] [2024-11-18 17:12:16,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338486496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:16,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:16,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:16,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111202348] [2024-11-18 17:12:16,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:16,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:16,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:16,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:16,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:16,723 INFO L87 Difference]: Start difference. First operand 1513 states and 2222 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) [2024-11-18 17:12:16,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:16,954 INFO L93 Difference]: Finished difference Result 2732 states and 4004 transitions. [2024-11-18 17:12:16,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:16,954 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 [2024-11-18 17:12:16,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:16,956 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:16,956 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:16,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:16,958 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 4167 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4170 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:16,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4170 Valid, 4126 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:16,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:16,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4688328912466844) internal successors, (2215), 1508 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) [2024-11-18 17:12:16,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2221 transitions. [2024-11-18 17:12:16,970 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2221 transitions. Word has length 382 [2024-11-18 17:12:16,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:16,970 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2221 transitions. [2024-11-18 17:12:16,971 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) [2024-11-18 17:12:16,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2221 transitions. [2024-11-18 17:12:16,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2024-11-18 17:12:16,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:16,972 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] [2024-11-18 17:12:16,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-18 17:12:16,973 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:16,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:16,973 INFO L85 PathProgramCache]: Analyzing trace with hash 72370413, now seen corresponding path program 1 times [2024-11-18 17:12:16,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:16,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425958145] [2024-11-18 17:12:16,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:16,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:17,579 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:17,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:17,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425958145] [2024-11-18 17:12:17,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425958145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:17,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:17,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:17,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660967153] [2024-11-18 17:12:17,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:17,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:17,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:17,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:17,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:17,581 INFO L87 Difference]: Start difference. First operand 1513 states and 2221 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) [2024-11-18 17:12:17,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:17,816 INFO L93 Difference]: Finished difference Result 2732 states and 4002 transitions. [2024-11-18 17:12:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:17,817 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 [2024-11-18 17:12:17,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:17,818 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:17,819 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:17,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:17,820 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 4159 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4162 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:17,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4162 Valid, 4126 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:17,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:17,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:17,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4681697612732096) internal successors, (2214), 1508 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) [2024-11-18 17:12:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2220 transitions. [2024-11-18 17:12:17,832 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2220 transitions. Word has length 383 [2024-11-18 17:12:17,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:17,832 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2220 transitions. [2024-11-18 17:12:17,832 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) [2024-11-18 17:12:17,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2220 transitions. [2024-11-18 17:12:17,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-18 17:12:17,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:17,834 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] [2024-11-18 17:12:17,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-18 17:12:17,834 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:17,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:17,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1255254202, now seen corresponding path program 1 times [2024-11-18 17:12:17,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:17,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766032121] [2024-11-18 17:12:17,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:17,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:18,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:18,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766032121] [2024-11-18 17:12:18,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766032121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:18,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:18,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:18,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653708642] [2024-11-18 17:12:18,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:18,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:18,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:18,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:18,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:18,425 INFO L87 Difference]: Start difference. First operand 1513 states and 2220 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) [2024-11-18 17:12:18,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:18,674 INFO L93 Difference]: Finished difference Result 2732 states and 4000 transitions. [2024-11-18 17:12:18,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:18,675 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 [2024-11-18 17:12:18,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:18,676 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:18,677 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:18,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:18,678 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 2186 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:18,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2189 Valid, 4133 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:18,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:18,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:18,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4675066312997347) internal successors, (2213), 1508 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) [2024-11-18 17:12:18,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2219 transitions. [2024-11-18 17:12:18,690 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2219 transitions. Word has length 384 [2024-11-18 17:12:18,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:18,691 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2219 transitions. [2024-11-18 17:12:18,691 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) [2024-11-18 17:12:18,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2219 transitions. [2024-11-18 17:12:18,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-18 17:12:18,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:18,693 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] [2024-11-18 17:12:18,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-18 17:12:18,693 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:18,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:18,693 INFO L85 PathProgramCache]: Analyzing trace with hash 118913780, now seen corresponding path program 1 times [2024-11-18 17:12:18,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:18,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847450282] [2024-11-18 17:12:18,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:18,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:19,176 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:19,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:19,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847450282] [2024-11-18 17:12:19,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847450282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:19,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:19,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:19,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578019817] [2024-11-18 17:12:19,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:19,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:19,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:19,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:19,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:19,178 INFO L87 Difference]: Start difference. First operand 1513 states and 2219 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) [2024-11-18 17:12:19,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:19,386 INFO L93 Difference]: Finished difference Result 2732 states and 3998 transitions. [2024-11-18 17:12:19,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:19,387 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 [2024-11-18 17:12:19,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:19,388 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:19,388 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:19,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:19,390 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 2182 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:19,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2185 Valid, 4133 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:19,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:19,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:19,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.46684350132626) internal successors, (2212), 1508 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) [2024-11-18 17:12:19,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2218 transitions. [2024-11-18 17:12:19,402 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2218 transitions. Word has length 385 [2024-11-18 17:12:19,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:19,402 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2218 transitions. [2024-11-18 17:12:19,402 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) [2024-11-18 17:12:19,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2218 transitions. [2024-11-18 17:12:19,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-18 17:12:19,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:19,404 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] [2024-11-18 17:12:19,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-18 17:12:19,404 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:19,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:19,404 INFO L85 PathProgramCache]: Analyzing trace with hash 204936737, now seen corresponding path program 1 times [2024-11-18 17:12:19,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:19,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192331517] [2024-11-18 17:12:19,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:19,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:19,909 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:19,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:19,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192331517] [2024-11-18 17:12:19,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192331517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:19,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:19,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:19,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985083845] [2024-11-18 17:12:19,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:19,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:19,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:19,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:19,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:19,912 INFO L87 Difference]: Start difference. First operand 1513 states and 2218 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) [2024-11-18 17:12:20,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:20,139 INFO L93 Difference]: Finished difference Result 2732 states and 3996 transitions. [2024-11-18 17:12:20,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:20,140 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 [2024-11-18 17:12:20,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:20,141 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:20,141 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:20,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:20,143 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 4135 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4138 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:20,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4138 Valid, 4126 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:20,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:20,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:20,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4661803713527852) internal successors, (2211), 1508 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) [2024-11-18 17:12:20,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2217 transitions. [2024-11-18 17:12:20,156 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2217 transitions. Word has length 386 [2024-11-18 17:12:20,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:20,156 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2217 transitions. [2024-11-18 17:12:20,157 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) [2024-11-18 17:12:20,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2217 transitions. [2024-11-18 17:12:20,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-18 17:12:20,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:20,158 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] [2024-11-18 17:12:20,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-18 17:12:20,159 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:20,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:20,159 INFO L85 PathProgramCache]: Analyzing trace with hash -385457029, now seen corresponding path program 1 times [2024-11-18 17:12:20,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:20,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010829521] [2024-11-18 17:12:20,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:20,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:20,747 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:20,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:20,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010829521] [2024-11-18 17:12:20,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010829521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:20,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:20,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:20,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229683770] [2024-11-18 17:12:20,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:20,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:20,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:20,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:20,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:20,750 INFO L87 Difference]: Start difference. First operand 1513 states and 2217 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) [2024-11-18 17:12:20,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:20,992 INFO L93 Difference]: Finished difference Result 2732 states and 3994 transitions. [2024-11-18 17:12:20,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:20,993 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 [2024-11-18 17:12:20,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:20,995 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:20,995 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:20,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:20,996 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 2174 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2177 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:20,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2177 Valid, 4133 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:20,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:21,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:21,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4655172413793103) internal successors, (2210), 1508 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) [2024-11-18 17:12:21,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2216 transitions. [2024-11-18 17:12:21,009 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2216 transitions. Word has length 387 [2024-11-18 17:12:21,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:21,009 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2216 transitions. [2024-11-18 17:12:21,010 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) [2024-11-18 17:12:21,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2216 transitions. [2024-11-18 17:12:21,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-11-18 17:12:21,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:21,011 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] [2024-11-18 17:12:21,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-18 17:12:21,012 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:21,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:21,012 INFO L85 PathProgramCache]: Analyzing trace with hash 88814344, now seen corresponding path program 1 times [2024-11-18 17:12:21,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:21,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794245381] [2024-11-18 17:12:21,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:21,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:21,660 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:21,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:21,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794245381] [2024-11-18 17:12:21,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794245381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:21,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:21,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:21,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262632958] [2024-11-18 17:12:21,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:21,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:21,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:21,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:21,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:21,664 INFO L87 Difference]: Start difference. First operand 1513 states and 2216 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) [2024-11-18 17:12:21,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:21,895 INFO L93 Difference]: Finished difference Result 2732 states and 3992 transitions. [2024-11-18 17:12:21,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:21,896 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 [2024-11-18 17:12:21,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:21,898 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:21,898 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:21,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:21,899 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 2170 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2173 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:21,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2173 Valid, 4133 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:21,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:21,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4648541114058355) internal successors, (2209), 1508 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) [2024-11-18 17:12:21,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2215 transitions. [2024-11-18 17:12:21,911 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2215 transitions. Word has length 388 [2024-11-18 17:12:21,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:21,912 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2215 transitions. [2024-11-18 17:12:21,912 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) [2024-11-18 17:12:21,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2215 transitions. [2024-11-18 17:12:21,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-18 17:12:21,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:21,914 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] [2024-11-18 17:12:21,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-18 17:12:21,914 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:21,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:21,914 INFO L85 PathProgramCache]: Analyzing trace with hash -760167038, now seen corresponding path program 1 times [2024-11-18 17:12:21,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:21,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366064050] [2024-11-18 17:12:21,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:21,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:22,439 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:22,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:22,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366064050] [2024-11-18 17:12:22,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366064050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:22,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:22,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:22,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951551453] [2024-11-18 17:12:22,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:22,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:22,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:22,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:22,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:22,441 INFO L87 Difference]: Start difference. First operand 1513 states and 2215 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) [2024-11-18 17:12:22,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:22,656 INFO L93 Difference]: Finished difference Result 2732 states and 3990 transitions. [2024-11-18 17:12:22,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:22,657 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 [2024-11-18 17:12:22,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:22,658 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:22,658 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:22,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:22,660 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 2166 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2169 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:22,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2169 Valid, 4133 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:22,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:22,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:22,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4641909814323608) internal successors, (2208), 1508 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) [2024-11-18 17:12:22,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2214 transitions. [2024-11-18 17:12:22,673 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2214 transitions. Word has length 389 [2024-11-18 17:12:22,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:22,674 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2214 transitions. [2024-11-18 17:12:22,674 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) [2024-11-18 17:12:22,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2214 transitions. [2024-11-18 17:12:22,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-18 17:12:22,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:22,675 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] [2024-11-18 17:12:22,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-18 17:12:22,676 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:22,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:22,676 INFO L85 PathProgramCache]: Analyzing trace with hash 552124271, now seen corresponding path program 1 times [2024-11-18 17:12:22,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:22,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381097688] [2024-11-18 17:12:22,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:22,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:23,229 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:23,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:23,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381097688] [2024-11-18 17:12:23,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381097688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:23,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:23,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:23,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689011631] [2024-11-18 17:12:23,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:23,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:23,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:23,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:23,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:23,232 INFO L87 Difference]: Start difference. First operand 1513 states and 2214 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) [2024-11-18 17:12:23,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:23,471 INFO L93 Difference]: Finished difference Result 2732 states and 3988 transitions. [2024-11-18 17:12:23,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:23,472 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 [2024-11-18 17:12:23,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:23,473 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:23,473 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:23,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:23,474 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 4103 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4106 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:23,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4106 Valid, 4126 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:23,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:23,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:23,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4635278514588859) internal successors, (2207), 1508 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) [2024-11-18 17:12:23,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2213 transitions. [2024-11-18 17:12:23,486 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2213 transitions. Word has length 390 [2024-11-18 17:12:23,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:23,486 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2213 transitions. [2024-11-18 17:12:23,487 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) [2024-11-18 17:12:23,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2213 transitions. [2024-11-18 17:12:23,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-18 17:12:23,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:23,488 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] [2024-11-18 17:12:23,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-18 17:12:23,488 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:23,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:23,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1959157257, now seen corresponding path program 1 times [2024-11-18 17:12:23,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:23,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317064456] [2024-11-18 17:12:23,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:23,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:24,140 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:24,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:24,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317064456] [2024-11-18 17:12:24,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317064456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:24,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:24,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:24,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506668671] [2024-11-18 17:12:24,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:24,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:24,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:24,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:24,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:24,143 INFO L87 Difference]: Start difference. First operand 1513 states and 2213 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) [2024-11-18 17:12:24,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:24,422 INFO L93 Difference]: Finished difference Result 2732 states and 3986 transitions. [2024-11-18 17:12:24,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:24,423 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 [2024-11-18 17:12:24,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:24,425 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:24,425 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:24,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:24,427 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 4089 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4092 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:24,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4092 Valid, 4126 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:12:24,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:24,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:24,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4628647214854111) internal successors, (2206), 1508 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) [2024-11-18 17:12:24,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2212 transitions. [2024-11-18 17:12:24,445 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2212 transitions. Word has length 391 [2024-11-18 17:12:24,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:24,445 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2212 transitions. [2024-11-18 17:12:24,445 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) [2024-11-18 17:12:24,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2212 transitions. [2024-11-18 17:12:24,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-18 17:12:24,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:24,448 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] [2024-11-18 17:12:24,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-18 17:12:24,448 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:24,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:24,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1480414193, now seen corresponding path program 1 times [2024-11-18 17:12:24,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:24,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707500534] [2024-11-18 17:12:24,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:24,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:25,240 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:25,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:25,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707500534] [2024-11-18 17:12:25,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707500534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:25,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:25,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:12:25,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782552637] [2024-11-18 17:12:25,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:25,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:12:25,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:25,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:12:25,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:25,243 INFO L87 Difference]: Start difference. First operand 1513 states and 2212 transitions. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 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) [2024-11-18 17:12:25,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:25,329 INFO L93 Difference]: Finished difference Result 2732 states and 3984 transitions. [2024-11-18 17:12:25,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:25,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 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 [2024-11-18 17:12:25,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:25,331 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:25,331 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:25,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:25,332 INFO L432 NwaCegarLoop]: 2166 mSDtfsCounter, 2000 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 4334 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:25,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2000 Valid, 4334 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:25,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:25,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:25,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4622015915119364) internal successors, (2205), 1508 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) [2024-11-18 17:12:25,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2211 transitions. [2024-11-18 17:12:25,344 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2211 transitions. Word has length 392 [2024-11-18 17:12:25,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:25,344 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2211 transitions. [2024-11-18 17:12:25,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 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) [2024-11-18 17:12:25,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2211 transitions. [2024-11-18 17:12:25,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-18 17:12:25,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:25,346 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] [2024-11-18 17:12:25,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-18 17:12:25,346 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:25,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:25,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1544915528, now seen corresponding path program 1 times [2024-11-18 17:12:25,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:25,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596305948] [2024-11-18 17:12:25,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:25,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:25,958 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:25,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:25,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596305948] [2024-11-18 17:12:25,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596305948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:25,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:25,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:25,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766198177] [2024-11-18 17:12:25,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:25,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:25,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:25,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:25,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:25,960 INFO L87 Difference]: Start difference. First operand 1513 states and 2211 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) [2024-11-18 17:12:26,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:26,050 INFO L93 Difference]: Finished difference Result 2736 states and 3987 transitions. [2024-11-18 17:12:26,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:12:26,051 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 [2024-11-18 17:12:26,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:26,052 INFO L225 Difference]: With dead ends: 2736 [2024-11-18 17:12:26,053 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:26,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:12:26,054 INFO L432 NwaCegarLoop]: 2199 mSDtfsCounter, 2007 mSDsluCounter, 4369 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 6568 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:26,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2007 Valid, 6568 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:26,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:26,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:26,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4615384615384615) internal successors, (2204), 1508 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) [2024-11-18 17:12:26,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2210 transitions. [2024-11-18 17:12:26,069 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2210 transitions. Word has length 393 [2024-11-18 17:12:26,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:26,070 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2210 transitions. [2024-11-18 17:12:26,070 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) [2024-11-18 17:12:26,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2210 transitions. [2024-11-18 17:12:26,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-11-18 17:12:26,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:26,071 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] [2024-11-18 17:12:26,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-18 17:12:26,072 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:26,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:26,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1534959521, now seen corresponding path program 1 times [2024-11-18 17:12:26,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:26,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794753382] [2024-11-18 17:12:26,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:26,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:26,636 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:26,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:26,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794753382] [2024-11-18 17:12:26,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794753382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:26,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:26,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:26,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265651099] [2024-11-18 17:12:26,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:26,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:26,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:26,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:26,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:26,639 INFO L87 Difference]: Start difference. First operand 1513 states and 2210 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) [2024-11-18 17:12:26,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:26,750 INFO L93 Difference]: Finished difference Result 2732 states and 3980 transitions. [2024-11-18 17:12:26,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:26,750 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 [2024-11-18 17:12:26,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:26,753 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:26,753 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:26,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:26,754 INFO L432 NwaCegarLoop]: 2166 mSDtfsCounter, 2194 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2197 SdHoareTripleChecker+Valid, 4341 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:26,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2197 Valid, 4341 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:26,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:26,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:26,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4608753315649867) internal successors, (2203), 1508 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) [2024-11-18 17:12:26,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2209 transitions. [2024-11-18 17:12:26,773 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2209 transitions. Word has length 394 [2024-11-18 17:12:26,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:26,774 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2209 transitions. [2024-11-18 17:12:26,774 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) [2024-11-18 17:12:26,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2209 transitions. [2024-11-18 17:12:26,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-18 17:12:26,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:26,776 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] [2024-11-18 17:12:26,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-18 17:12:26,777 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:26,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:26,778 INFO L85 PathProgramCache]: Analyzing trace with hash -333195185, now seen corresponding path program 1 times [2024-11-18 17:12:26,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:26,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139092965] [2024-11-18 17:12:26,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:26,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:27,464 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:27,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:27,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139092965] [2024-11-18 17:12:27,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139092965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:27,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:27,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:27,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952143424] [2024-11-18 17:12:27,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:27,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:27,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:27,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:27,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:27,467 INFO L87 Difference]: Start difference. First operand 1513 states and 2209 transitions. Second operand has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 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) [2024-11-18 17:12:27,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:27,581 INFO L93 Difference]: Finished difference Result 2732 states and 3978 transitions. [2024-11-18 17:12:27,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:27,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 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 [2024-11-18 17:12:27,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:27,585 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:27,585 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:27,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:27,587 INFO L432 NwaCegarLoop]: 2166 mSDtfsCounter, 4177 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4180 SdHoareTripleChecker+Valid, 4334 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:27,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4180 Valid, 4334 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:27,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:27,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:27,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.460212201591512) internal successors, (2202), 1508 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) [2024-11-18 17:12:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2208 transitions. [2024-11-18 17:12:27,606 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2208 transitions. Word has length 395 [2024-11-18 17:12:27,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:27,606 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2208 transitions. [2024-11-18 17:12:27,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 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) [2024-11-18 17:12:27,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2208 transitions. [2024-11-18 17:12:27,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-18 17:12:27,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:27,608 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] [2024-11-18 17:12:27,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-18 17:12:27,609 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:27,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:27,609 INFO L85 PathProgramCache]: Analyzing trace with hash 636473025, now seen corresponding path program 1 times [2024-11-18 17:12:27,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:27,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170822773] [2024-11-18 17:12:27,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:27,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:28,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:28,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170822773] [2024-11-18 17:12:28,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170822773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:28,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:28,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:12:28,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903165724] [2024-11-18 17:12:28,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:28,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:12:28,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:28,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:12:28,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:28,379 INFO L87 Difference]: Start difference. First operand 1513 states and 2208 transitions. Second operand has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 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) [2024-11-18 17:12:28,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:28,544 INFO L93 Difference]: Finished difference Result 2732 states and 3976 transitions. [2024-11-18 17:12:28,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:28,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 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 [2024-11-18 17:12:28,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:28,548 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:28,548 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:28,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:28,550 INFO L432 NwaCegarLoop]: 2122 mSDtfsCounter, 1982 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1982 SdHoareTripleChecker+Valid, 4246 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:28,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1982 Valid, 4246 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:28,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:28,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:28,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.459549071618037) internal successors, (2201), 1508 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) [2024-11-18 17:12:28,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2207 transitions. [2024-11-18 17:12:28,570 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2207 transitions. Word has length 396 [2024-11-18 17:12:28,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:28,571 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2207 transitions. [2024-11-18 17:12:28,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 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) [2024-11-18 17:12:28,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2207 transitions. [2024-11-18 17:12:28,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2024-11-18 17:12:28,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:28,573 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] [2024-11-18 17:12:28,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-18 17:12:28,573 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:28,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:28,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1854828531, now seen corresponding path program 1 times [2024-11-18 17:12:28,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:28,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666930231] [2024-11-18 17:12:28,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:28,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:29,326 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:29,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:29,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666930231] [2024-11-18 17:12:29,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666930231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:29,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:29,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:29,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188149677] [2024-11-18 17:12:29,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:29,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:29,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:29,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:29,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:29,328 INFO L87 Difference]: Start difference. First operand 1513 states and 2207 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) [2024-11-18 17:12:29,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:29,464 INFO L93 Difference]: Finished difference Result 2738 states and 3982 transitions. [2024-11-18 17:12:29,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:12:29,465 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 [2024-11-18 17:12:29,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:29,467 INFO L225 Difference]: With dead ends: 2738 [2024-11-18 17:12:29,467 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:29,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:12:29,469 INFO L432 NwaCegarLoop]: 2194 mSDtfsCounter, 1993 mSDsluCounter, 4320 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 6514 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:29,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1993 Valid, 6514 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:29,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:29,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:29,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4588859416445623) internal successors, (2200), 1508 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) [2024-11-18 17:12:29,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2206 transitions. [2024-11-18 17:12:29,484 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2206 transitions. Word has length 397 [2024-11-18 17:12:29,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:29,485 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2206 transitions. [2024-11-18 17:12:29,485 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) [2024-11-18 17:12:29,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2206 transitions. [2024-11-18 17:12:29,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-18 17:12:29,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:29,487 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] [2024-11-18 17:12:29,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-18 17:12:29,488 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:29,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:29,488 INFO L85 PathProgramCache]: Analyzing trace with hash 383004172, now seen corresponding path program 1 times [2024-11-18 17:12:29,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:29,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434871394] [2024-11-18 17:12:29,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:29,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:30,030 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:30,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:30,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434871394] [2024-11-18 17:12:30,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434871394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:30,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:30,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:30,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793736599] [2024-11-18 17:12:30,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:30,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:30,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:30,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:30,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:30,032 INFO L87 Difference]: Start difference. First operand 1513 states and 2206 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) [2024-11-18 17:12:30,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:30,191 INFO L93 Difference]: Finished difference Result 2732 states and 3972 transitions. [2024-11-18 17:12:30,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:30,192 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 [2024-11-18 17:12:30,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:30,194 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:30,194 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:30,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:30,195 INFO L432 NwaCegarLoop]: 2122 mSDtfsCounter, 2190 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2193 SdHoareTripleChecker+Valid, 4253 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:30,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2193 Valid, 4253 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:30,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:30,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:30,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4582228116710876) internal successors, (2199), 1508 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) [2024-11-18 17:12:30,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2205 transitions. [2024-11-18 17:12:30,214 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2205 transitions. Word has length 398 [2024-11-18 17:12:30,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:30,214 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2205 transitions. [2024-11-18 17:12:30,214 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) [2024-11-18 17:12:30,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2205 transitions. [2024-11-18 17:12:30,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-18 17:12:30,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:30,217 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] [2024-11-18 17:12:30,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-18 17:12:30,217 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:30,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:30,218 INFO L85 PathProgramCache]: Analyzing trace with hash 203074810, now seen corresponding path program 1 times [2024-11-18 17:12:30,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:30,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578016049] [2024-11-18 17:12:30,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:30,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:30,936 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:30,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:30,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578016049] [2024-11-18 17:12:30,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578016049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:30,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:30,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:30,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049458764] [2024-11-18 17:12:30,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:30,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:30,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:30,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:30,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:30,939 INFO L87 Difference]: Start difference. First operand 1513 states and 2205 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) [2024-11-18 17:12:31,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:31,113 INFO L93 Difference]: Finished difference Result 2732 states and 3970 transitions. [2024-11-18 17:12:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:31,113 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 [2024-11-18 17:12:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:31,115 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:31,115 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:31,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:31,117 INFO L432 NwaCegarLoop]: 2122 mSDtfsCounter, 4163 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4166 SdHoareTripleChecker+Valid, 4246 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:31,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4166 Valid, 4246 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:31,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:31,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:31,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4575596816976126) internal successors, (2198), 1508 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) [2024-11-18 17:12:31,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2204 transitions. [2024-11-18 17:12:31,134 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2204 transitions. Word has length 399 [2024-11-18 17:12:31,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:31,135 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2204 transitions. [2024-11-18 17:12:31,135 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) [2024-11-18 17:12:31,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2204 transitions. [2024-11-18 17:12:31,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-18 17:12:31,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:31,137 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] [2024-11-18 17:12:31,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-18 17:12:31,137 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:31,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:31,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1622420621, now seen corresponding path program 1 times [2024-11-18 17:12:31,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:31,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821777680] [2024-11-18 17:12:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:31,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:31,798 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:31,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:31,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821777680] [2024-11-18 17:12:31,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821777680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:31,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:31,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:31,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385542365] [2024-11-18 17:12:31,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:31,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:31,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:31,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:31,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:31,800 INFO L87 Difference]: Start difference. First operand 1513 states and 2204 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) [2024-11-18 17:12:31,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:31,938 INFO L93 Difference]: Finished difference Result 2732 states and 3968 transitions. [2024-11-18 17:12:31,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:31,938 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 [2024-11-18 17:12:31,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:31,940 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:31,940 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:31,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:31,941 INFO L432 NwaCegarLoop]: 2122 mSDtfsCounter, 2179 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2182 SdHoareTripleChecker+Valid, 4253 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:31,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2182 Valid, 4253 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:31,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:31,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:31,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.456896551724138) internal successors, (2197), 1508 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) [2024-11-18 17:12:31,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2203 transitions. [2024-11-18 17:12:31,960 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2203 transitions. Word has length 400 [2024-11-18 17:12:31,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:31,961 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2203 transitions. [2024-11-18 17:12:31,961 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) [2024-11-18 17:12:31,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2203 transitions. [2024-11-18 17:12:31,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-18 17:12:31,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:31,963 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] [2024-11-18 17:12:31,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-18 17:12:31,963 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:31,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:31,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1596404358, now seen corresponding path program 1 times [2024-11-18 17:12:31,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:31,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783380023] [2024-11-18 17:12:31,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:31,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:32,514 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:32,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:32,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783380023] [2024-11-18 17:12:32,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783380023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:32,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:32,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:32,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632438055] [2024-11-18 17:12:32,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:32,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:32,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:32,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:32,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:32,517 INFO L87 Difference]: Start difference. First operand 1513 states and 2203 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) [2024-11-18 17:12:32,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:32,654 INFO L93 Difference]: Finished difference Result 2732 states and 3966 transitions. [2024-11-18 17:12:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:32,654 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 [2024-11-18 17:12:32,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:32,656 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:32,656 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:32,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:32,657 INFO L432 NwaCegarLoop]: 2122 mSDtfsCounter, 4141 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4144 SdHoareTripleChecker+Valid, 4246 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:32,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4144 Valid, 4246 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:32,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:32,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:32,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4562334217506632) internal successors, (2196), 1508 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) [2024-11-18 17:12:32,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2202 transitions. [2024-11-18 17:12:32,669 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2202 transitions. Word has length 401 [2024-11-18 17:12:32,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:32,670 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2202 transitions. [2024-11-18 17:12:32,670 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) [2024-11-18 17:12:32,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2202 transitions. [2024-11-18 17:12:32,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-18 17:12:32,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:32,671 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] [2024-11-18 17:12:32,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-18 17:12:32,672 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:32,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:32,672 INFO L85 PathProgramCache]: Analyzing trace with hash -506099060, now seen corresponding path program 1 times [2024-11-18 17:12:32,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:32,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849944475] [2024-11-18 17:12:32,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:32,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:33,271 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:33,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:33,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849944475] [2024-11-18 17:12:33,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849944475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:33,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:33,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:33,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999722877] [2024-11-18 17:12:33,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:33,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:33,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:33,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:33,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:33,274 INFO L87 Difference]: Start difference. First operand 1513 states and 2202 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) [2024-11-18 17:12:33,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:33,417 INFO L93 Difference]: Finished difference Result 2732 states and 3964 transitions. [2024-11-18 17:12:33,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:33,418 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 [2024-11-18 17:12:33,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:33,420 INFO L225 Difference]: With dead ends: 2732 [2024-11-18 17:12:33,420 INFO L226 Difference]: Without dead ends: 1513 [2024-11-18 17:12:33,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:33,422 INFO L432 NwaCegarLoop]: 2122 mSDtfsCounter, 2171 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 4253 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:33,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2174 Valid, 4253 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:33,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-18 17:12:33,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-18 17:12:33,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4555702917771882) internal successors, (2195), 1508 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) [2024-11-18 17:12:33,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2201 transitions. [2024-11-18 17:12:33,444 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2201 transitions. Word has length 402 [2024-11-18 17:12:33,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:33,445 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2201 transitions. [2024-11-18 17:12:33,445 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) [2024-11-18 17:12:33,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2201 transitions. [2024-11-18 17:12:33,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-18 17:12:33,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:33,447 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] [2024-11-18 17:12:33,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-18 17:12:33,448 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:33,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:33,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1405427763, now seen corresponding path program 1 times [2024-11-18 17:12:33,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:33,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788906289] [2024-11-18 17:12:33,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:33,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat