./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d16_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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_d16_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 52aaa0332eefa406b14bf0040bc722ffbb83771cf03ec10c7d17ac8a4e45d63a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 10:49:24,576 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 10:49:24,663 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 10:49:24,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 10:49:24,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 10:49:24,698 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 10:49:24,699 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 10:49:24,699 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 10:49:24,700 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 10:49:24,701 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 10:49:24,702 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 10:49:24,702 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 10:49:24,703 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 10:49:24,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 10:49:24,703 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 10:49:24,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 10:49:24,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 10:49:24,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 10:49:24,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 10:49:24,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 10:49:24,708 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 10:49:24,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 10:49:24,711 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 10:49:24,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 10:49:24,712 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 10:49:24,712 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 10:49:24,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 10:49:24,713 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 10:49:24,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 10:49:24,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:49:24,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 10:49:24,724 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 10:49:24,724 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 10:49:24,725 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 10:49:24,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 10:49:24,725 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 10:49:24,726 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 10:49:24,726 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 10:49:24,726 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 10:49:24,726 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52aaa0332eefa406b14bf0040bc722ffbb83771cf03ec10c7d17ac8a4e45d63a [2024-11-16 10:49:24,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 10:49:25,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 10:49:25,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 10:49:25,013 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 10:49:25,013 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 10:49:25,015 INFO L431 ainManager$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_d16_e0.c [2024-11-16 10:49:26,396 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 10:49:26,614 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 10:49:26,615 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d16_e0.c [2024-11-16 10:49:26,628 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3cb2ee8b/2289a746ec844a0f9c887943637fae8e/FLAGf56ef2e7b [2024-11-16 10:49:26,956 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3cb2ee8b/2289a746ec844a0f9c887943637fae8e [2024-11-16 10:49:26,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 10:49:26,959 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 10:49:26,963 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 10:49:26,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 10:49:26,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 10:49:26,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:49:26" (1/1) ... [2024-11-16 10:49:26,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304163f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:26, skipping insertion in model container [2024-11-16 10:49:26,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:49:26" (1/1) ... [2024-11-16 10:49:27,023 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 10:49:27,208 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_d16_e0.c[1335,1348] [2024-11-16 10:49:27,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:49:27,457 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 10:49:27,470 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_d16_e0.c[1335,1348] [2024-11-16 10:49:27,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:49:27,584 INFO L204 MainTranslator]: Completed translation [2024-11-16 10:49:27,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27 WrapperNode [2024-11-16 10:49:27,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 10:49:27,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 10:49:27,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 10:49:27,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 10:49:27,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27" (1/1) ... [2024-11-16 10:49:27,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27" (1/1) ... [2024-11-16 10:49:27,893 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1976 [2024-11-16 10:49:27,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 10:49:27,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 10:49:27,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 10:49:27,895 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 10:49:27,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27" (1/1) ... [2024-11-16 10:49:27,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27" (1/1) ... [2024-11-16 10:49:28,014 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27" (1/1) ... [2024-11-16 10:49:28,120 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]. [2024-11-16 10:49:28,121 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27" (1/1) ... [2024-11-16 10:49:28,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27" (1/1) ... [2024-11-16 10:49:28,199 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27" (1/1) ... [2024-11-16 10:49:28,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27" (1/1) ... [2024-11-16 10:49:28,223 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27" (1/1) ... [2024-11-16 10:49:28,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27" (1/1) ... [2024-11-16 10:49:28,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 10:49:28,265 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 10:49:28,265 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 10:49:28,266 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 10:49:28,266 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27" (1/1) ... [2024-11-16 10:49:28,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:49:28,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:49:28,299 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) [2024-11-16 10:49:28,304 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 [2024-11-16 10:49:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 10:49:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 10:49:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 10:49:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 10:49:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 10:49:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 10:49:28,575 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 10:49:28,577 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 10:49:30,403 INFO L? ?]: Removed 1091 outVars from TransFormulas that were not future-live. [2024-11-16 10:49:30,403 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 10:49:30,517 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 10:49:30,517 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 10:49:30,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:49:30 BoogieIcfgContainer [2024-11-16 10:49:30,518 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 10:49:30,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 10:49:30,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 10:49:30,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 10:49:30,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:49:26" (1/3) ... [2024-11-16 10:49:30,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63249e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:49:30, skipping insertion in model container [2024-11-16 10:49:30,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:27" (2/3) ... [2024-11-16 10:49:30,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63249e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:49:30, skipping insertion in model container [2024-11-16 10:49:30,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:49:30" (3/3) ... [2024-11-16 10:49:30,528 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w128_d16_e0.c [2024-11-16 10:49:30,544 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 10:49:30,544 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 10:49:30,621 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 10:49:30,631 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;@460fd18b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 10:49:30,631 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 10:49:30,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 555 states, 549 states have (on average 1.4918032786885247) internal successors, (819), 550 states have internal predecessors, (819), 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) [2024-11-16 10:49:30,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 10:49:30,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:30,653 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] [2024-11-16 10:49:30,654 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:30,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:30,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1625409850, now seen corresponding path program 1 times [2024-11-16 10:49:30,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:30,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688565140] [2024-11-16 10:49:30,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:30,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:31,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:31,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:31,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:31,123 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:31,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:31,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688565140] [2024-11-16 10:49:31,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688565140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:31,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:31,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 10:49:31,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537155789] [2024-11-16 10:49:31,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:31,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 10:49:31,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:31,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 10:49:31,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 10:49:31,183 INFO L87 Difference]: Start difference. First operand has 555 states, 549 states have (on average 1.4918032786885247) internal successors, (819), 550 states have internal predecessors, (819), 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 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:49:31,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:31,431 INFO L93 Difference]: Finished difference Result 1003 states and 1497 transitions. [2024-11-16 10:49:31,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 10:49:31,433 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 150 [2024-11-16 10:49:31,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:31,443 INFO L225 Difference]: With dead ends: 1003 [2024-11-16 10:49:31,444 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:49:31,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 10:49:31,450 INFO L432 NwaCegarLoop]: 685 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:31,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 685 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:49:31,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:49:31,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:49:31,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.489908256880734) internal successors, (812), 545 states have internal predecessors, (812), 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) [2024-11-16 10:49:31,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 818 transitions. [2024-11-16 10:49:31,515 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 818 transitions. Word has length 150 [2024-11-16 10:49:31,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:31,516 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 818 transitions. [2024-11-16 10:49:31,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:49:31,516 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 818 transitions. [2024-11-16 10:49:31,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 10:49:31,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:31,520 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] [2024-11-16 10:49:31,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 10:49:31,522 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:31,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:31,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1352422711, now seen corresponding path program 1 times [2024-11-16 10:49:31,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:31,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715326388] [2024-11-16 10:49:31,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:31,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:32,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:32,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:32,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:32,651 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:32,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:32,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715326388] [2024-11-16 10:49:32,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715326388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:32,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:32,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:49:32,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925208556] [2024-11-16 10:49:32,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:32,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:49:32,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:32,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:49:32,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:49:32,657 INFO L87 Difference]: Start difference. First operand 550 states and 818 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:33,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:33,117 INFO L93 Difference]: Finished difference Result 998 states and 1484 transitions. [2024-11-16 10:49:33,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:33,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 150 [2024-11-16 10:49:33,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:33,122 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:49:33,123 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:49:33,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:33,127 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 697 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:33,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1240 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:49:33,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:49:33,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:49:33,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4880733944954128) internal successors, (811), 545 states have internal predecessors, (811), 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) [2024-11-16 10:49:33,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 817 transitions. [2024-11-16 10:49:33,154 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 817 transitions. Word has length 150 [2024-11-16 10:49:33,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:33,156 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 817 transitions. [2024-11-16 10:49:33,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:33,156 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 817 transitions. [2024-11-16 10:49:33,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 10:49:33,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:33,159 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] [2024-11-16 10:49:33,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 10:49:33,160 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:33,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:33,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1158923814, now seen corresponding path program 1 times [2024-11-16 10:49:33,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:33,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128777024] [2024-11-16 10:49:33,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:33,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:33,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:33,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:33,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:33,620 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:33,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:33,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128777024] [2024-11-16 10:49:33,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128777024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:33,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:33,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:33,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283480450] [2024-11-16 10:49:33,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:33,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:33,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:33,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:33,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:33,628 INFO L87 Difference]: Start difference. First operand 550 states and 817 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:34,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:34,028 INFO L93 Difference]: Finished difference Result 1004 states and 1490 transitions. [2024-11-16 10:49:34,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:49:34,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 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 151 [2024-11-16 10:49:34,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:34,032 INFO L225 Difference]: With dead ends: 1004 [2024-11-16 10:49:34,032 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:49:34,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:49:34,035 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 708 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:34,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 1975 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:49:34,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:49:34,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:49:34,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4862385321100917) internal successors, (810), 545 states have internal predecessors, (810), 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) [2024-11-16 10:49:34,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 816 transitions. [2024-11-16 10:49:34,061 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 816 transitions. Word has length 151 [2024-11-16 10:49:34,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:34,062 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 816 transitions. [2024-11-16 10:49:34,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:34,062 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 816 transitions. [2024-11-16 10:49:34,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-16 10:49:34,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:34,066 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] [2024-11-16 10:49:34,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 10:49:34,066 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:34,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:34,067 INFO L85 PathProgramCache]: Analyzing trace with hash 53871960, now seen corresponding path program 1 times [2024-11-16 10:49:34,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:34,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722845640] [2024-11-16 10:49:34,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:34,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:34,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:34,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:34,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:34,457 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:34,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:34,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722845640] [2024-11-16 10:49:34,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722845640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:34,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:34,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:34,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670048051] [2024-11-16 10:49:34,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:34,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:34,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:34,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:34,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:34,460 INFO L87 Difference]: Start difference. First operand 550 states and 816 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:34,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:34,863 INFO L93 Difference]: Finished difference Result 998 states and 1480 transitions. [2024-11-16 10:49:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:34,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 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 152 [2024-11-16 10:49:34,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:34,869 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:49:34,869 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:49:34,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:34,873 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1500 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:34,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1240 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:49:34,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:49:34,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:49:34,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4844036697247707) internal successors, (809), 545 states have internal predecessors, (809), 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) [2024-11-16 10:49:34,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 815 transitions. [2024-11-16 10:49:34,891 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 815 transitions. Word has length 152 [2024-11-16 10:49:34,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:34,892 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 815 transitions. [2024-11-16 10:49:34,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:34,893 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 815 transitions. [2024-11-16 10:49:34,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-16 10:49:34,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:34,895 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] [2024-11-16 10:49:34,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 10:49:34,895 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:34,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:34,896 INFO L85 PathProgramCache]: Analyzing trace with hash -595827019, now seen corresponding path program 1 times [2024-11-16 10:49:34,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:34,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953426715] [2024-11-16 10:49:34,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:34,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:35,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:35,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:35,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:35,272 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:35,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:35,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953426715] [2024-11-16 10:49:35,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953426715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:35,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:35,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:35,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173787243] [2024-11-16 10:49:35,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:35,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:35,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:35,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:35,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:35,275 INFO L87 Difference]: Start difference. First operand 550 states and 815 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:35,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:35,636 INFO L93 Difference]: Finished difference Result 998 states and 1478 transitions. [2024-11-16 10:49:35,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:35,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 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 153 [2024-11-16 10:49:35,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:35,640 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:49:35,640 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:49:35,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:35,642 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1492 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:35,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1240 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:35,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:49:35,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:49:35,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4825688073394496) internal successors, (808), 545 states have internal predecessors, (808), 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) [2024-11-16 10:49:35,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 814 transitions. [2024-11-16 10:49:35,656 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 814 transitions. Word has length 153 [2024-11-16 10:49:35,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:35,657 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 814 transitions. [2024-11-16 10:49:35,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:35,657 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 814 transitions. [2024-11-16 10:49:35,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-16 10:49:35,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:35,660 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] [2024-11-16 10:49:35,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 10:49:35,663 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:35,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:35,663 INFO L85 PathProgramCache]: Analyzing trace with hash -2121565997, now seen corresponding path program 1 times [2024-11-16 10:49:35,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:35,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332110999] [2024-11-16 10:49:35,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:35,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:36,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:36,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:36,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:36,077 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:36,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:36,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332110999] [2024-11-16 10:49:36,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332110999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:36,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:36,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:36,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034112383] [2024-11-16 10:49:36,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:36,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:36,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:36,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:36,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:36,081 INFO L87 Difference]: Start difference. First operand 550 states and 814 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:36,418 INFO L93 Difference]: Finished difference Result 998 states and 1476 transitions. [2024-11-16 10:49:36,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:36,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 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 154 [2024-11-16 10:49:36,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:36,421 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:49:36,421 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:49:36,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:36,423 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1478 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:36,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 1240 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:36,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:49:36,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:49:36,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4807339449541284) internal successors, (807), 545 states have internal predecessors, (807), 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) [2024-11-16 10:49:36,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 813 transitions. [2024-11-16 10:49:36,438 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 813 transitions. Word has length 154 [2024-11-16 10:49:36,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:36,438 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 813 transitions. [2024-11-16 10:49:36,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:36,439 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 813 transitions. [2024-11-16 10:49:36,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 10:49:36,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:36,440 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] [2024-11-16 10:49:36,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 10:49:36,441 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:36,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:36,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1509435477, now seen corresponding path program 1 times [2024-11-16 10:49:36,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:36,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491924032] [2024-11-16 10:49:36,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:36,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:36,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:36,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:36,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:36,851 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:36,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:36,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491924032] [2024-11-16 10:49:36,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491924032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:36,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:36,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:36,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793730550] [2024-11-16 10:49:36,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:36,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:36,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:36,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:36,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:36,855 INFO L87 Difference]: Start difference. First operand 550 states and 813 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:37,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:37,239 INFO L93 Difference]: Finished difference Result 998 states and 1474 transitions. [2024-11-16 10:49:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:37,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 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 155 [2024-11-16 10:49:37,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:37,242 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:49:37,242 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:49:37,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:37,244 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1470 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:37,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 1240 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:37,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:49:37,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:49:37,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4788990825688073) internal successors, (806), 545 states have internal predecessors, (806), 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) [2024-11-16 10:49:37,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 812 transitions. [2024-11-16 10:49:37,263 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 812 transitions. Word has length 155 [2024-11-16 10:49:37,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:37,264 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 812 transitions. [2024-11-16 10:49:37,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:37,264 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 812 transitions. [2024-11-16 10:49:37,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-16 10:49:37,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:37,267 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:49:37,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 10:49:37,267 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:37,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:37,268 INFO L85 PathProgramCache]: Analyzing trace with hash -105156200, now seen corresponding path program 1 times [2024-11-16 10:49:37,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:37,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963101187] [2024-11-16 10:49:37,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:37,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:37,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:37,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:37,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:37,697 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:37,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:37,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963101187] [2024-11-16 10:49:37,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963101187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:37,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:37,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:37,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643181296] [2024-11-16 10:49:37,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:37,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:37,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:37,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:37,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:37,701 INFO L87 Difference]: Start difference. First operand 550 states and 812 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:38,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:38,067 INFO L93 Difference]: Finished difference Result 998 states and 1472 transitions. [2024-11-16 10:49:38,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:38,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 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 156 [2024-11-16 10:49:38,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:38,070 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:49:38,070 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:49:38,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:38,074 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1462 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:38,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 1240 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:38,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:49:38,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:49:38,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4770642201834863) internal successors, (805), 545 states have internal predecessors, (805), 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) [2024-11-16 10:49:38,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 811 transitions. [2024-11-16 10:49:38,090 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 811 transitions. Word has length 156 [2024-11-16 10:49:38,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:38,091 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 811 transitions. [2024-11-16 10:49:38,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:38,091 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 811 transitions. [2024-11-16 10:49:38,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 10:49:38,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:38,093 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] [2024-11-16 10:49:38,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 10:49:38,093 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:38,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:38,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1383970426, now seen corresponding path program 1 times [2024-11-16 10:49:38,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:38,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512436061] [2024-11-16 10:49:38,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:38,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:38,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:38,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:38,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:38,533 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:38,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:38,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512436061] [2024-11-16 10:49:38,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512436061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:38,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:38,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:38,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074766574] [2024-11-16 10:49:38,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:38,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:38,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:38,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:38,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:38,535 INFO L87 Difference]: Start difference. First operand 550 states and 811 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:38,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:38,898 INFO L93 Difference]: Finished difference Result 998 states and 1470 transitions. [2024-11-16 10:49:38,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:38,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 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 157 [2024-11-16 10:49:38,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:38,902 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:49:38,903 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:49:38,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:38,904 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1454 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:38,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 1240 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:38,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:49:38,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:49:38,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4752293577981652) internal successors, (804), 545 states have internal predecessors, (804), 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) [2024-11-16 10:49:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 810 transitions. [2024-11-16 10:49:38,918 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 810 transitions. Word has length 157 [2024-11-16 10:49:38,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:38,919 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 810 transitions. [2024-11-16 10:49:38,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:38,919 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 810 transitions. [2024-11-16 10:49:38,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-16 10:49:38,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:38,921 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] [2024-11-16 10:49:38,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 10:49:38,921 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:38,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:38,922 INFO L85 PathProgramCache]: Analyzing trace with hash 51978461, now seen corresponding path program 1 times [2024-11-16 10:49:38,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:38,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056365390] [2024-11-16 10:49:38,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:38,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:39,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:39,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:39,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:39,434 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:39,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:39,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056365390] [2024-11-16 10:49:39,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056365390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:39,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:39,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:49:39,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884345077] [2024-11-16 10:49:39,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:39,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:49:39,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:39,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:49:39,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:49:39,439 INFO L87 Difference]: Start difference. First operand 550 states and 810 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:39,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:39,700 INFO L93 Difference]: Finished difference Result 555 states and 815 transitions. [2024-11-16 10:49:39,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:39,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 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 158 [2024-11-16 10:49:39,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:39,703 INFO L225 Difference]: With dead ends: 555 [2024-11-16 10:49:39,703 INFO L226 Difference]: Without dead ends: 552 [2024-11-16 10:49:39,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:49:39,704 INFO L432 NwaCegarLoop]: 675 mSDtfsCounter, 0 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:39,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2020 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:49:39,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-16 10:49:39,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-11-16 10:49:39,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4734917733089579) internal successors, (806), 547 states have internal predecessors, (806), 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) [2024-11-16 10:49:39,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 812 transitions. [2024-11-16 10:49:39,717 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 812 transitions. Word has length 158 [2024-11-16 10:49:39,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:39,718 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 812 transitions. [2024-11-16 10:49:39,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:39,718 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 812 transitions. [2024-11-16 10:49:39,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 10:49:39,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:39,720 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] [2024-11-16 10:49:39,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 10:49:39,720 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:39,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:39,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1756386158, now seen corresponding path program 1 times [2024-11-16 10:49:39,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:39,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133342223] [2024-11-16 10:49:39,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:39,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:40,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:40,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:40,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:40,099 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:40,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:40,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133342223] [2024-11-16 10:49:40,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133342223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:40,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:40,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:40,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243475024] [2024-11-16 10:49:40,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:40,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:40,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:40,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:40,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:40,101 INFO L87 Difference]: Start difference. First operand 552 states and 812 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:40,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:40,777 INFO L93 Difference]: Finished difference Result 1373 states and 2019 transitions. [2024-11-16 10:49:40,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:49:40,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 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 159 [2024-11-16 10:49:40,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:40,780 INFO L225 Difference]: With dead ends: 1373 [2024-11-16 10:49:40,780 INFO L226 Difference]: Without dead ends: 552 [2024-11-16 10:49:40,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-16 10:49:40,782 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1587 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:40,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 1947 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 10:49:40,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-16 10:49:40,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-11-16 10:49:40,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4716636197440585) internal successors, (805), 547 states have internal predecessors, (805), 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) [2024-11-16 10:49:40,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 811 transitions. [2024-11-16 10:49:40,797 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 811 transitions. Word has length 159 [2024-11-16 10:49:40,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:40,798 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 811 transitions. [2024-11-16 10:49:40,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:40,798 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 811 transitions. [2024-11-16 10:49:40,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-16 10:49:40,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:40,800 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] [2024-11-16 10:49:40,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 10:49:40,800 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:40,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:40,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1622143185, now seen corresponding path program 1 times [2024-11-16 10:49:40,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:40,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835021058] [2024-11-16 10:49:40,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:40,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:41,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:41,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:41,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:41,164 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:41,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:41,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835021058] [2024-11-16 10:49:41,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835021058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:41,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:41,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:49:41,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581265953] [2024-11-16 10:49:41,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:41,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:49:41,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:41,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:49:41,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:49:41,167 INFO L87 Difference]: Start difference. First operand 552 states and 811 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:41,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:41,427 INFO L93 Difference]: Finished difference Result 1004 states and 1473 transitions. [2024-11-16 10:49:41,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:41,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 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 160 [2024-11-16 10:49:41,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:41,430 INFO L225 Difference]: With dead ends: 1004 [2024-11-16 10:49:41,431 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:49:41,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:49:41,432 INFO L432 NwaCegarLoop]: 674 mSDtfsCounter, 0 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:41,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2014 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:49:41,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:49:41,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:49:41,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.469945355191257) internal successors, (807), 549 states have internal predecessors, (807), 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) [2024-11-16 10:49:41,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 813 transitions. [2024-11-16 10:49:41,445 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 813 transitions. Word has length 160 [2024-11-16 10:49:41,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:41,445 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 813 transitions. [2024-11-16 10:49:41,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:41,446 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 813 transitions. [2024-11-16 10:49:41,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 10:49:41,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:41,447 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] [2024-11-16 10:49:41,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 10:49:41,448 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:41,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:41,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1000412865, now seen corresponding path program 1 times [2024-11-16 10:49:41,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:41,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556430213] [2024-11-16 10:49:41,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:41,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:41,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:41,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:41,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:41,976 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:41,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:41,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556430213] [2024-11-16 10:49:41,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556430213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:41,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:41,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:49:41,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51493534] [2024-11-16 10:49:41,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:41,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:49:41,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:41,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:49:41,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:49:41,979 INFO L87 Difference]: Start difference. First operand 554 states and 813 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:42,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:42,297 INFO L93 Difference]: Finished difference Result 1006 states and 1474 transitions. [2024-11-16 10:49:42,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:42,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 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 161 [2024-11-16 10:49:42,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:42,300 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 10:49:42,301 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:49:42,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:42,303 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 695 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:42,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1286 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:42,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:49:42,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:49:42,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4681238615664844) internal successors, (806), 549 states have internal predecessors, (806), 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) [2024-11-16 10:49:42,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 812 transitions. [2024-11-16 10:49:42,320 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 812 transitions. Word has length 161 [2024-11-16 10:49:42,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:42,320 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 812 transitions. [2024-11-16 10:49:42,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:42,321 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 812 transitions. [2024-11-16 10:49:42,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 10:49:42,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:42,323 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] [2024-11-16 10:49:42,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 10:49:42,323 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:42,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:42,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1310992352, now seen corresponding path program 1 times [2024-11-16 10:49:42,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:42,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898166723] [2024-11-16 10:49:42,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:42,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:42,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:42,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:42,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:42,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:42,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898166723] [2024-11-16 10:49:42,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898166723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:42,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:42,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:42,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337394254] [2024-11-16 10:49:42,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:42,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:42,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:42,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:42,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:42,703 INFO L87 Difference]: Start difference. First operand 554 states and 812 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:43,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:43,053 INFO L93 Difference]: Finished difference Result 1012 states and 1480 transitions. [2024-11-16 10:49:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:49:43,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 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 162 [2024-11-16 10:49:43,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:43,055 INFO L225 Difference]: With dead ends: 1012 [2024-11-16 10:49:43,055 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:49:43,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:49:43,057 INFO L432 NwaCegarLoop]: 667 mSDtfsCounter, 706 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1980 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:43,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1980 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:43,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:49:43,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:49:43,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4663023679417122) internal successors, (805), 549 states have internal predecessors, (805), 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) [2024-11-16 10:49:43,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 811 transitions. [2024-11-16 10:49:43,069 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 811 transitions. Word has length 162 [2024-11-16 10:49:43,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:43,069 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 811 transitions. [2024-11-16 10:49:43,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:43,070 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 811 transitions. [2024-11-16 10:49:43,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-16 10:49:43,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:43,071 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] [2024-11-16 10:49:43,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 10:49:43,072 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:43,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:43,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1066656432, now seen corresponding path program 1 times [2024-11-16 10:49:43,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:43,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387529257] [2024-11-16 10:49:43,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:43,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:43,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:43,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:43,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:43,394 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:43,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:43,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387529257] [2024-11-16 10:49:43,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387529257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:43,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:43,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:43,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863730710] [2024-11-16 10:49:43,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:43,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:43,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:43,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:43,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:43,396 INFO L87 Difference]: Start difference. First operand 554 states and 811 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:43,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:43,728 INFO L93 Difference]: Finished difference Result 1006 states and 1470 transitions. [2024-11-16 10:49:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:43,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 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 163 [2024-11-16 10:49:43,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:43,731 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 10:49:43,731 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:49:43,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:43,734 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 1489 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:43,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1286 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:43,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:49:43,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:49:43,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.46448087431694) internal successors, (804), 549 states have internal predecessors, (804), 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) [2024-11-16 10:49:43,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 810 transitions. [2024-11-16 10:49:43,746 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 810 transitions. Word has length 163 [2024-11-16 10:49:43,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:43,746 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 810 transitions. [2024-11-16 10:49:43,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:43,747 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 810 transitions. [2024-11-16 10:49:43,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-16 10:49:43,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:43,748 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] [2024-11-16 10:49:43,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 10:49:43,749 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:43,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:43,749 INFO L85 PathProgramCache]: Analyzing trace with hash -304199045, now seen corresponding path program 1 times [2024-11-16 10:49:43,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:43,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914048730] [2024-11-16 10:49:43,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:43,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:44,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:44,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:44,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:44,075 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:44,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:44,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914048730] [2024-11-16 10:49:44,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914048730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:44,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:44,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:44,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338986547] [2024-11-16 10:49:44,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:44,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:44,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:44,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:44,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:44,077 INFO L87 Difference]: Start difference. First operand 554 states and 810 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:44,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:44,359 INFO L93 Difference]: Finished difference Result 1006 states and 1468 transitions. [2024-11-16 10:49:44,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:44,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 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 164 [2024-11-16 10:49:44,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:44,362 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 10:49:44,362 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:49:44,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:44,363 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 1481 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:44,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1286 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:44,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:49:44,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:49:44,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4626593806921675) internal successors, (803), 549 states have internal predecessors, (803), 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) [2024-11-16 10:49:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 809 transitions. [2024-11-16 10:49:44,376 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 809 transitions. Word has length 164 [2024-11-16 10:49:44,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:44,377 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 809 transitions. [2024-11-16 10:49:44,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:44,377 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 809 transitions. [2024-11-16 10:49:44,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-16 10:49:44,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:44,379 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] [2024-11-16 10:49:44,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 10:49:44,379 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:44,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:44,379 INFO L85 PathProgramCache]: Analyzing trace with hash 98101707, now seen corresponding path program 1 times [2024-11-16 10:49:44,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:44,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297670875] [2024-11-16 10:49:44,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:44,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:44,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:44,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:44,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:44,812 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:44,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:44,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297670875] [2024-11-16 10:49:44,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297670875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:44,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:44,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:49:44,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071719049] [2024-11-16 10:49:44,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:44,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:49:44,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:44,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:49:44,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:49:44,815 INFO L87 Difference]: Start difference. First operand 554 states and 809 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:45,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:45,071 INFO L93 Difference]: Finished difference Result 1005 states and 1465 transitions. [2024-11-16 10:49:45,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:45,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 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 165 [2024-11-16 10:49:45,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:45,074 INFO L225 Difference]: With dead ends: 1005 [2024-11-16 10:49:45,074 INFO L226 Difference]: Without dead ends: 553 [2024-11-16 10:49:45,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:45,075 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 696 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:45,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1310 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:49:45,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-16 10:49:45,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-16 10:49:45,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4598540145985401) internal successors, (800), 548 states have internal predecessors, (800), 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) [2024-11-16 10:49:45,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 806 transitions. [2024-11-16 10:49:45,087 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 806 transitions. Word has length 165 [2024-11-16 10:49:45,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:45,087 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 806 transitions. [2024-11-16 10:49:45,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:45,087 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 806 transitions. [2024-11-16 10:49:45,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 10:49:45,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:45,089 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] [2024-11-16 10:49:45,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 10:49:45,089 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:45,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:45,090 INFO L85 PathProgramCache]: Analyzing trace with hash 724410902, now seen corresponding path program 1 times [2024-11-16 10:49:45,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:45,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23847241] [2024-11-16 10:49:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:45,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:45,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:45,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:45,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:45,402 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:45,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:45,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23847241] [2024-11-16 10:49:45,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23847241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:45,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:45,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:45,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881615109] [2024-11-16 10:49:45,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:45,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:45,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:45,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:45,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:45,405 INFO L87 Difference]: Start difference. First operand 553 states and 806 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:45,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:45,678 INFO L93 Difference]: Finished difference Result 1006 states and 1462 transitions. [2024-11-16 10:49:45,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:49:45,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (3), 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 166 [2024-11-16 10:49:45,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:45,681 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 10:49:45,681 INFO L226 Difference]: Without dead ends: 553 [2024-11-16 10:49:45,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:49:45,682 INFO L432 NwaCegarLoop]: 664 mSDtfsCounter, 700 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:45,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1986 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:49:45,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-16 10:49:45,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-16 10:49:45,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4580291970802919) internal successors, (799), 548 states have internal predecessors, (799), 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) [2024-11-16 10:49:45,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 805 transitions. [2024-11-16 10:49:45,695 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 805 transitions. Word has length 166 [2024-11-16 10:49:45,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:45,695 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 805 transitions. [2024-11-16 10:49:45,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:45,696 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 805 transitions. [2024-11-16 10:49:45,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-16 10:49:45,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:45,697 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] [2024-11-16 10:49:45,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 10:49:45,697 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:45,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:45,698 INFO L85 PathProgramCache]: Analyzing trace with hash 313438672, now seen corresponding path program 1 times [2024-11-16 10:49:45,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:45,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421870840] [2024-11-16 10:49:45,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:45,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:46,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:46,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:49:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:46,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:49:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:46,147 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:46,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:46,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421870840] [2024-11-16 10:49:46,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421870840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:46,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:46,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:49:46,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605496199] [2024-11-16 10:49:46,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:46,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:49:46,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:46,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:49:46,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:49:46,150 INFO L87 Difference]: Start difference. First operand 553 states and 805 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:49:46,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:46,404 INFO L93 Difference]: Finished difference Result 1004 states and 1458 transitions. [2024-11-16 10:49:46,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:46,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 167 [2024-11-16 10:49:46,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:46,406 INFO L225 Difference]: With dead ends: 1004 [2024-11-16 10:49:46,406 INFO L226 Difference]: Without dead ends: 553 [2024-11-16 10:49:46,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:46,408 INFO L432 NwaCegarLoop]: 656 mSDtfsCounter, 734 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:46,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1314 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:49:46,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-16 10:49:46,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-16 10:49:46,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4562043795620438) internal successors, (798), 548 states have internal predecessors, (798), 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) [2024-11-16 10:49:46,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 804 transitions. [2024-11-16 10:49:46,419 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 804 transitions. Word has length 167 [2024-11-16 10:49:46,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:46,419 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 804 transitions. [2024-11-16 10:49:46,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:49:46,419 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 804 transitions. [2024-11-16 10:49:46,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-16 10:49:46,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:46,421 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] [2024-11-16 10:49:46,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 10:49:46,421 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:46,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:46,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2140638889, now seen corresponding path program 1 times [2024-11-16 10:49:46,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:46,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604802824] [2024-11-16 10:49:46,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:46,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:46,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:46,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 10:49:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:46,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 10:49:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:46,858 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:46,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:46,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604802824] [2024-11-16 10:49:46,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604802824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:46,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:46,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:49:46,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816166265] [2024-11-16 10:49:46,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:46,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:49:46,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:46,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:49:46,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:49:46,861 INFO L87 Difference]: Start difference. First operand 553 states and 804 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:49:47,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:47,115 INFO L93 Difference]: Finished difference Result 1004 states and 1456 transitions. [2024-11-16 10:49:47,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:47,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 168 [2024-11-16 10:49:47,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:47,117 INFO L225 Difference]: With dead ends: 1004 [2024-11-16 10:49:47,117 INFO L226 Difference]: Without dead ends: 553 [2024-11-16 10:49:47,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:47,118 INFO L432 NwaCegarLoop]: 656 mSDtfsCounter, 732 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:47,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1314 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:49:47,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-16 10:49:47,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-16 10:49:47,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4543795620437956) internal successors, (797), 548 states have internal predecessors, (797), 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) [2024-11-16 10:49:47,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 803 transitions. [2024-11-16 10:49:47,130 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 803 transitions. Word has length 168 [2024-11-16 10:49:47,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:47,130 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 803 transitions. [2024-11-16 10:49:47,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:49:47,131 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 803 transitions. [2024-11-16 10:49:47,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-16 10:49:47,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:47,132 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] [2024-11-16 10:49:47,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 10:49:47,132 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:47,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:47,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1423121859, now seen corresponding path program 1 times [2024-11-16 10:49:47,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:47,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932571557] [2024-11-16 10:49:47,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:47,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:47,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:47,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:47,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:47,935 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:47,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:47,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932571557] [2024-11-16 10:49:47,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932571557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:47,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:47,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:47,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141351406] [2024-11-16 10:49:47,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:47,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:47,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:47,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:47,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:47,938 INFO L87 Difference]: Start difference. First operand 553 states and 803 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:48,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:48,434 INFO L93 Difference]: Finished difference Result 1010 states and 1462 transitions. [2024-11-16 10:49:48,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:49:48,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 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 169 [2024-11-16 10:49:48,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:48,438 INFO L225 Difference]: With dead ends: 1010 [2024-11-16 10:49:48,438 INFO L226 Difference]: Without dead ends: 557 [2024-11-16 10:49:48,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:48,441 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 2 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:48,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2493 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:49:48,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-16 10:49:48,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 555. [2024-11-16 10:49:48,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4527272727272726) internal successors, (799), 550 states have internal predecessors, (799), 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) [2024-11-16 10:49:48,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 805 transitions. [2024-11-16 10:49:48,459 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 805 transitions. Word has length 169 [2024-11-16 10:49:48,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:48,460 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 805 transitions. [2024-11-16 10:49:48,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:48,460 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 805 transitions. [2024-11-16 10:49:48,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-16 10:49:48,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:48,461 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] [2024-11-16 10:49:48,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 10:49:48,461 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:48,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:48,463 INFO L85 PathProgramCache]: Analyzing trace with hash 897621475, now seen corresponding path program 1 times [2024-11-16 10:49:48,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:48,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432319524] [2024-11-16 10:49:48,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:48,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:48,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:48,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:48,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:48,987 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:48,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:48,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432319524] [2024-11-16 10:49:48,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432319524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:48,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:48,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:48,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314830730] [2024-11-16 10:49:48,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:48,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:48,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:48,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:48,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:48,989 INFO L87 Difference]: Start difference. First operand 555 states and 805 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:49,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:49,355 INFO L93 Difference]: Finished difference Result 1008 states and 1458 transitions. [2024-11-16 10:49:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:49,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 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 170 [2024-11-16 10:49:49,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:49,360 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:49:49,360 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:49:49,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:49,362 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 675 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:49,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 1220 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:49,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:49:49,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:49:49,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.450909090909091) internal successors, (798), 550 states have internal predecessors, (798), 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) [2024-11-16 10:49:49,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 804 transitions. [2024-11-16 10:49:49,374 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 804 transitions. Word has length 170 [2024-11-16 10:49:49,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:49,375 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 804 transitions. [2024-11-16 10:49:49,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:49,375 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 804 transitions. [2024-11-16 10:49:49,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-16 10:49:49,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:49,376 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] [2024-11-16 10:49:49,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 10:49:49,377 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:49,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:49,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1605742337, now seen corresponding path program 1 times [2024-11-16 10:49:49,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:49,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539698072] [2024-11-16 10:49:49,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:49,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:49,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:49,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:49,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:49,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:49,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539698072] [2024-11-16 10:49:49,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539698072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:49,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:49,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:49,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655485968] [2024-11-16 10:49:49,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:49,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:49,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:49,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:49,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:49,848 INFO L87 Difference]: Start difference. First operand 555 states and 804 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:50,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:50,191 INFO L93 Difference]: Finished difference Result 1008 states and 1456 transitions. [2024-11-16 10:49:50,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:50,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 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 171 [2024-11-16 10:49:50,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:50,194 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:49:50,194 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:49:50,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:50,195 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 671 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:50,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 1227 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:50,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:49:50,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:49:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.449090909090909) internal successors, (797), 550 states have internal predecessors, (797), 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) [2024-11-16 10:49:50,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 803 transitions. [2024-11-16 10:49:50,206 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 803 transitions. Word has length 171 [2024-11-16 10:49:50,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:50,207 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 803 transitions. [2024-11-16 10:49:50,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:50,207 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 803 transitions. [2024-11-16 10:49:50,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 10:49:50,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:50,209 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] [2024-11-16 10:49:50,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 10:49:50,209 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:50,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:50,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1845805341, now seen corresponding path program 1 times [2024-11-16 10:49:50,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:50,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152085048] [2024-11-16 10:49:50,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:50,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:50,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:50,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:50,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:50,696 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:50,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:50,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152085048] [2024-11-16 10:49:50,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152085048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:50,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:50,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:50,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544183202] [2024-11-16 10:49:50,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:50,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:50,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:50,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:50,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:50,699 INFO L87 Difference]: Start difference. First operand 555 states and 803 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:51,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:51,031 INFO L93 Difference]: Finished difference Result 1008 states and 1454 transitions. [2024-11-16 10:49:51,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:51,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 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 172 [2024-11-16 10:49:51,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:51,034 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:49:51,034 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:49:51,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:51,036 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 670 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:51,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 1227 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:51,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:49:51,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:49:51,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4472727272727273) internal successors, (796), 550 states have internal predecessors, (796), 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) [2024-11-16 10:49:51,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 802 transitions. [2024-11-16 10:49:51,048 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 802 transitions. Word has length 172 [2024-11-16 10:49:51,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:51,048 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 802 transitions. [2024-11-16 10:49:51,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:51,049 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 802 transitions. [2024-11-16 10:49:51,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 10:49:51,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:51,050 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] [2024-11-16 10:49:51,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 10:49:51,051 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:51,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:51,051 INFO L85 PathProgramCache]: Analyzing trace with hash 545661202, now seen corresponding path program 1 times [2024-11-16 10:49:51,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:51,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776230588] [2024-11-16 10:49:51,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:51,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:51,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:51,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:51,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:51,495 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:51,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:51,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776230588] [2024-11-16 10:49:51,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776230588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:51,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:51,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:51,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050890993] [2024-11-16 10:49:51,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:51,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:51,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:51,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:51,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:51,498 INFO L87 Difference]: Start difference. First operand 555 states and 802 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:51,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:51,817 INFO L93 Difference]: Finished difference Result 1008 states and 1452 transitions. [2024-11-16 10:49:51,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:51,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 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 173 [2024-11-16 10:49:51,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:51,820 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:49:51,820 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:49:51,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:51,821 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 1326 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:51,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 1220 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:51,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:49:51,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:49:51,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4454545454545455) internal successors, (795), 550 states have internal predecessors, (795), 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) [2024-11-16 10:49:51,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 801 transitions. [2024-11-16 10:49:51,833 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 801 transitions. Word has length 173 [2024-11-16 10:49:51,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:51,833 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 801 transitions. [2024-11-16 10:49:51,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:51,833 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 801 transitions. [2024-11-16 10:49:51,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-16 10:49:51,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:51,835 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] [2024-11-16 10:49:51,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 10:49:51,835 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:51,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:51,835 INFO L85 PathProgramCache]: Analyzing trace with hash 91082309, now seen corresponding path program 1 times [2024-11-16 10:49:51,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:51,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404521489] [2024-11-16 10:49:51,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:51,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:52,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:52,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:52,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:52,339 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:52,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:52,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404521489] [2024-11-16 10:49:52,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404521489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:52,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:52,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:49:52,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974432472] [2024-11-16 10:49:52,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:52,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:49:52,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:52,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:49:52,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:49:52,343 INFO L87 Difference]: Start difference. First operand 555 states and 801 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:52,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:52,657 INFO L93 Difference]: Finished difference Result 1008 states and 1450 transitions. [2024-11-16 10:49:52,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:52,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 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 174 [2024-11-16 10:49:52,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:52,660 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:49:52,660 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:49:52,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:52,661 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 653 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:52,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 1220 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:52,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:49:52,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:49:52,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4436363636363636) internal successors, (794), 550 states have internal predecessors, (794), 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) [2024-11-16 10:49:52,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 800 transitions. [2024-11-16 10:49:52,672 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 800 transitions. Word has length 174 [2024-11-16 10:49:52,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:52,672 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 800 transitions. [2024-11-16 10:49:52,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:52,673 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 800 transitions. [2024-11-16 10:49:52,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 10:49:52,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:52,674 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:49:52,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 10:49:52,674 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:52,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:52,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1429764137, now seen corresponding path program 1 times [2024-11-16 10:49:52,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:52,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089779313] [2024-11-16 10:49:52,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:52,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:53,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:53,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:53,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:53,121 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:53,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:53,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089779313] [2024-11-16 10:49:53,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089779313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:53,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:53,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:53,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067538443] [2024-11-16 10:49:53,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:53,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:53,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:53,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:53,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:53,125 INFO L87 Difference]: Start difference. First operand 555 states and 800 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:53,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:53,430 INFO L93 Difference]: Finished difference Result 1008 states and 1448 transitions. [2024-11-16 10:49:53,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:53,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 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 175 [2024-11-16 10:49:53,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:53,432 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:49:53,432 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:49:53,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:53,433 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 1314 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:53,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 1220 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:53,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:49:53,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:49:53,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4418181818181819) internal successors, (793), 550 states have internal predecessors, (793), 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) [2024-11-16 10:49:53,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 799 transitions. [2024-11-16 10:49:53,467 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 799 transitions. Word has length 175 [2024-11-16 10:49:53,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:53,468 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 799 transitions. [2024-11-16 10:49:53,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:53,468 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 799 transitions. [2024-11-16 10:49:53,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 10:49:53,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:53,470 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] [2024-11-16 10:49:53,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 10:49:53,470 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:53,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:53,471 INFO L85 PathProgramCache]: Analyzing trace with hash -770533007, now seen corresponding path program 1 times [2024-11-16 10:49:53,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:53,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918679929] [2024-11-16 10:49:53,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:53,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:54,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:54,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:54,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:54,032 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:54,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:54,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918679929] [2024-11-16 10:49:54,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918679929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:54,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:54,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:54,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417558844] [2024-11-16 10:49:54,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:54,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:54,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:54,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:54,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:54,034 INFO L87 Difference]: Start difference. First operand 555 states and 799 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:54,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:54,389 INFO L93 Difference]: Finished difference Result 1008 states and 1446 transitions. [2024-11-16 10:49:54,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:54,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 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 176 [2024-11-16 10:49:54,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:54,392 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:49:54,392 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:49:54,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:54,393 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 1308 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:54,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 1220 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:54,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:49:54,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:49:54,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.44) internal successors, (792), 550 states have internal predecessors, (792), 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) [2024-11-16 10:49:54,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 798 transitions. [2024-11-16 10:49:54,408 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 798 transitions. Word has length 176 [2024-11-16 10:49:54,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:54,408 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 798 transitions. [2024-11-16 10:49:54,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:54,409 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 798 transitions. [2024-11-16 10:49:54,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 10:49:54,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:54,410 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] [2024-11-16 10:49:54,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 10:49:54,410 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:54,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:54,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1249659902, now seen corresponding path program 1 times [2024-11-16 10:49:54,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:54,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119093793] [2024-11-16 10:49:54,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:54,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:54,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:54,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:54,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:54,811 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:54,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:54,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119093793] [2024-11-16 10:49:54,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119093793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:54,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:54,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:49:54,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48078866] [2024-11-16 10:49:54,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:54,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:49:54,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:54,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:49:54,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:49:54,813 INFO L87 Difference]: Start difference. First operand 555 states and 798 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:55,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:55,049 INFO L93 Difference]: Finished difference Result 1008 states and 1444 transitions. [2024-11-16 10:49:55,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:55,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 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 177 [2024-11-16 10:49:55,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:55,052 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:49:55,052 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:49:55,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:55,053 INFO L432 NwaCegarLoop]: 645 mSDtfsCounter, 684 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:55,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 1292 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:49:55,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:49:55,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:49:55,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4381818181818182) internal successors, (791), 550 states have internal predecessors, (791), 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) [2024-11-16 10:49:55,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 797 transitions. [2024-11-16 10:49:55,065 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 797 transitions. Word has length 177 [2024-11-16 10:49:55,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:55,065 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 797 transitions. [2024-11-16 10:49:55,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:55,065 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 797 transitions. [2024-11-16 10:49:55,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-16 10:49:55,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:55,067 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] [2024-11-16 10:49:55,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 10:49:55,067 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:55,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:55,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1094741425, now seen corresponding path program 1 times [2024-11-16 10:49:55,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:55,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835713957] [2024-11-16 10:49:55,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:55,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:55,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:55,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:55,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:55,437 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:55,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:55,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835713957] [2024-11-16 10:49:55,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835713957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:55,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:55,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:49:55,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775357927] [2024-11-16 10:49:55,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:55,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:49:55,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:55,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:49:55,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:49:55,440 INFO L87 Difference]: Start difference. First operand 555 states and 797 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:55,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:55,676 INFO L93 Difference]: Finished difference Result 1008 states and 1442 transitions. [2024-11-16 10:49:55,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:55,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 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 178 [2024-11-16 10:49:55,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:55,678 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:49:55,678 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:49:55,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:55,679 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 676 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 1260 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 [2024-11-16 10:49:55,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 1260 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:49:55,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:49:55,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:49:55,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4363636363636363) internal successors, (790), 550 states have internal predecessors, (790), 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) [2024-11-16 10:49:55,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 796 transitions. [2024-11-16 10:49:55,692 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 796 transitions. Word has length 178 [2024-11-16 10:49:55,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:55,693 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 796 transitions. [2024-11-16 10:49:55,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:55,693 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 796 transitions. [2024-11-16 10:49:55,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-16 10:49:55,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:55,694 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] [2024-11-16 10:49:55,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 10:49:55,695 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:55,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:55,695 INFO L85 PathProgramCache]: Analyzing trace with hash 572205561, now seen corresponding path program 1 times [2024-11-16 10:49:55,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:55,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699292019] [2024-11-16 10:49:55,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:55,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:56,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:56,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:56,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:56,075 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:56,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:56,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699292019] [2024-11-16 10:49:56,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699292019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:56,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:56,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:56,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676082345] [2024-11-16 10:49:56,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:56,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:56,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:56,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:56,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:56,078 INFO L87 Difference]: Start difference. First operand 555 states and 796 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:56,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:56,344 INFO L93 Difference]: Finished difference Result 1008 states and 1440 transitions. [2024-11-16 10:49:56,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:56,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 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 179 [2024-11-16 10:49:56,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:56,346 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:49:56,346 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:49:56,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:56,347 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 674 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:56,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 1267 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:49:56,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:49:56,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:49:56,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4345454545454546) internal successors, (789), 550 states have internal predecessors, (789), 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) [2024-11-16 10:49:56,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 795 transitions. [2024-11-16 10:49:56,358 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 795 transitions. Word has length 179 [2024-11-16 10:49:56,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:56,359 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 795 transitions. [2024-11-16 10:49:56,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:56,359 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 795 transitions. [2024-11-16 10:49:56,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-16 10:49:56,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:56,360 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] [2024-11-16 10:49:56,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 10:49:56,361 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:56,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:56,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1992581875, now seen corresponding path program 1 times [2024-11-16 10:49:56,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:56,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937747329] [2024-11-16 10:49:56,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:56,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:56,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:56,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:56,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:56,787 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:56,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:56,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937747329] [2024-11-16 10:49:56,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937747329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:56,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:56,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:56,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233943344] [2024-11-16 10:49:56,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:56,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:56,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:56,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:56,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:56,790 INFO L87 Difference]: Start difference. First operand 555 states and 795 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:57,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:57,074 INFO L93 Difference]: Finished difference Result 1008 states and 1438 transitions. [2024-11-16 10:49:57,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:57,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 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 180 [2024-11-16 10:49:57,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:57,076 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:49:57,076 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:49:57,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:57,077 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 673 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:57,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1267 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:57,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:49:57,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:49:57,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4327272727272726) internal successors, (788), 550 states have internal predecessors, (788), 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) [2024-11-16 10:49:57,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 794 transitions. [2024-11-16 10:49:57,089 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 794 transitions. Word has length 180 [2024-11-16 10:49:57,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:57,089 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 794 transitions. [2024-11-16 10:49:57,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:57,090 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 794 transitions. [2024-11-16 10:49:57,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-16 10:49:57,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:57,091 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] [2024-11-16 10:49:57,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 10:49:57,091 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:57,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:57,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1374731862, now seen corresponding path program 1 times [2024-11-16 10:49:57,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:57,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75052621] [2024-11-16 10:49:57,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:57,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:57,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:57,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:58,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:58,009 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:49:58,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:58,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75052621] [2024-11-16 10:49:58,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75052621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:58,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:58,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:49:58,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243764864] [2024-11-16 10:49:58,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:58,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:49:58,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:58,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:49:58,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:49:58,012 INFO L87 Difference]: Start difference. First operand 555 states and 794 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:58,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:58,564 INFO L93 Difference]: Finished difference Result 1161 states and 1636 transitions. [2024-11-16 10:49:58,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:49:58,565 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 1 states have call successors, (3), 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 181 [2024-11-16 10:49:58,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:58,568 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:49:58,568 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:49:58,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-16 10:49:58,569 INFO L432 NwaCegarLoop]: 644 mSDtfsCounter, 1132 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:58,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 3210 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:49:58,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:49:58,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:49:58,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.4014285714285715) internal successors, (981), 700 states have internal predecessors, (981), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:49:58,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 993 transitions. [2024-11-16 10:49:58,592 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 993 transitions. Word has length 181 [2024-11-16 10:49:58,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:58,592 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 993 transitions. [2024-11-16 10:49:58,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:49:58,592 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 993 transitions. [2024-11-16 10:49:58,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2024-11-16 10:49:58,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:58,595 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:49:58,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-16 10:49:58,596 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:58,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:58,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1513040137, now seen corresponding path program 1 times [2024-11-16 10:49:58,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:58,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023771189] [2024-11-16 10:49:58,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:58,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:49:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:59,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:49:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:59,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:49:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:59,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:49:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:59,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-11-16 10:49:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:59,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-11-16 10:49:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:59,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-11-16 10:49:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:49:59,418 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:49:59,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:49:59,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023771189] [2024-11-16 10:49:59,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023771189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:49:59,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:49:59,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:49:59,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937723447] [2024-11-16 10:49:59,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:49:59,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:49:59,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:49:59,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:49:59,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:49:59,424 INFO L87 Difference]: Start difference. First operand 708 states and 993 transitions. Second operand has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:49:59,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:49:59,745 INFO L93 Difference]: Finished difference Result 1161 states and 1635 transitions. [2024-11-16 10:49:59,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:49:59,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 447 [2024-11-16 10:49:59,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:49:59,748 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:49:59,748 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:49:59,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:49:59,749 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 1326 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:49:59,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 1212 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:49:59,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:49:59,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:49:59,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.4) internal successors, (980), 700 states have internal predecessors, (980), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:49:59,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 992 transitions. [2024-11-16 10:49:59,767 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 992 transitions. Word has length 447 [2024-11-16 10:49:59,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:49:59,767 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 992 transitions. [2024-11-16 10:49:59,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:49:59,768 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 992 transitions. [2024-11-16 10:49:59,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-11-16 10:49:59,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:49:59,772 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:49:59,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-16 10:49:59,772 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:49:59,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:49:59,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2018727349, now seen corresponding path program 1 times [2024-11-16 10:49:59,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:49:59,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585416477] [2024-11-16 10:49:59,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:49:59,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:00,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:00,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:00,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:00,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-11-16 10:50:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:00,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-16 10:50:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:00,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-11-16 10:50:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:00,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:00,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585416477] [2024-11-16 10:50:00,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585416477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:00,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:00,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:00,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699269719] [2024-11-16 10:50:00,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:00,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:00,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:00,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:00,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:00,549 INFO L87 Difference]: Start difference. First operand 708 states and 992 transitions. Second operand has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:00,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:00,861 INFO L93 Difference]: Finished difference Result 1161 states and 1633 transitions. [2024-11-16 10:50:00,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:00,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 448 [2024-11-16 10:50:00,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:00,865 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:00,865 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:00,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:00,866 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 1310 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:00,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1313 Valid, 1212 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:00,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:00,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:00,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3985714285714286) internal successors, (979), 700 states have internal predecessors, (979), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:00,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 991 transitions. [2024-11-16 10:50:00,884 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 991 transitions. Word has length 448 [2024-11-16 10:50:00,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:00,885 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 991 transitions. [2024-11-16 10:50:00,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 991 transitions. [2024-11-16 10:50:00,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-16 10:50:00,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:00,889 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:00,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-16 10:50:00,889 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:00,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:00,890 INFO L85 PathProgramCache]: Analyzing trace with hash -758850216, now seen corresponding path program 1 times [2024-11-16 10:50:00,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:00,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813074841] [2024-11-16 10:50:00,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:00,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:01,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:01,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:01,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:01,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-11-16 10:50:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:01,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-11-16 10:50:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:01,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-16 10:50:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:01,758 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:01,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:01,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813074841] [2024-11-16 10:50:01,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813074841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:01,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:01,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:01,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383575843] [2024-11-16 10:50:01,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:01,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:01,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:01,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:01,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:01,762 INFO L87 Difference]: Start difference. First operand 708 states and 991 transitions. Second operand has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:02,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:02,115 INFO L93 Difference]: Finished difference Result 1161 states and 1631 transitions. [2024-11-16 10:50:02,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:02,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 449 [2024-11-16 10:50:02,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:02,119 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:02,119 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:02,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:02,121 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 708 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:02,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1219 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:02,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:02,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:02,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3971428571428572) internal successors, (978), 700 states have internal predecessors, (978), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:02,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 990 transitions. [2024-11-16 10:50:02,147 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 990 transitions. Word has length 449 [2024-11-16 10:50:02,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:02,148 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 990 transitions. [2024-11-16 10:50:02,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:02,148 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 990 transitions. [2024-11-16 10:50:02,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2024-11-16 10:50:02,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:02,153 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:02,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-16 10:50:02,154 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:02,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:02,155 INFO L85 PathProgramCache]: Analyzing trace with hash -712282076, now seen corresponding path program 1 times [2024-11-16 10:50:02,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:02,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967634263] [2024-11-16 10:50:02,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:02,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:02,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:02,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:02,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:02,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-11-16 10:50:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:03,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-11-16 10:50:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:03,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-11-16 10:50:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:03,004 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:03,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:03,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967634263] [2024-11-16 10:50:03,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967634263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:03,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:03,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:03,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204569705] [2024-11-16 10:50:03,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:03,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:03,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:03,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:03,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:03,008 INFO L87 Difference]: Start difference. First operand 708 states and 990 transitions. Second operand has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:03,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:03,257 INFO L93 Difference]: Finished difference Result 1161 states and 1629 transitions. [2024-11-16 10:50:03,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:03,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 450 [2024-11-16 10:50:03,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:03,260 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:03,261 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:03,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:03,262 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 1278 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:03,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 1212 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:03,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:03,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3957142857142857) internal successors, (977), 700 states have internal predecessors, (977), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:03,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 989 transitions. [2024-11-16 10:50:03,279 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 989 transitions. Word has length 450 [2024-11-16 10:50:03,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:03,279 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 989 transitions. [2024-11-16 10:50:03,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:03,280 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 989 transitions. [2024-11-16 10:50:03,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2024-11-16 10:50:03,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:03,283 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:03,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-16 10:50:03,283 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:03,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:03,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1069820889, now seen corresponding path program 1 times [2024-11-16 10:50:03,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:03,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301380068] [2024-11-16 10:50:03,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:03,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:04,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:04,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:04,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:04,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-11-16 10:50:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:04,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-16 10:50:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:04,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-11-16 10:50:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:04,082 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:04,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:04,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301380068] [2024-11-16 10:50:04,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301380068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:04,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:04,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:04,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728713540] [2024-11-16 10:50:04,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:04,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:04,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:04,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:04,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:04,085 INFO L87 Difference]: Start difference. First operand 708 states and 989 transitions. Second operand has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:04,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:04,341 INFO L93 Difference]: Finished difference Result 1161 states and 1627 transitions. [2024-11-16 10:50:04,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:04,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 451 [2024-11-16 10:50:04,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:04,348 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:04,348 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:04,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:04,350 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 692 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:04,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1219 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:04,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:04,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:04,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3942857142857144) internal successors, (976), 700 states have internal predecessors, (976), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:04,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 988 transitions. [2024-11-16 10:50:04,366 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 988 transitions. Word has length 451 [2024-11-16 10:50:04,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:04,367 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 988 transitions. [2024-11-16 10:50:04,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:04,367 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 988 transitions. [2024-11-16 10:50:04,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2024-11-16 10:50:04,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:04,370 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:04,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-16 10:50:04,371 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:04,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:04,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1242854675, now seen corresponding path program 1 times [2024-11-16 10:50:04,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:04,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103943498] [2024-11-16 10:50:04,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:04,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:05,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:05,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:05,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:05,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-11-16 10:50:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:05,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-11-16 10:50:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:05,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-16 10:50:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:05,108 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:05,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:05,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103943498] [2024-11-16 10:50:05,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103943498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:05,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:05,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:05,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303118481] [2024-11-16 10:50:05,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:05,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:05,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:05,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:05,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:05,111 INFO L87 Difference]: Start difference. First operand 708 states and 988 transitions. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:05,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:05,371 INFO L93 Difference]: Finished difference Result 1161 states and 1625 transitions. [2024-11-16 10:50:05,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:05,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 452 [2024-11-16 10:50:05,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:05,374 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:05,374 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:05,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:05,375 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 684 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:05,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1219 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:05,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:05,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:05,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3928571428571428) internal successors, (975), 700 states have internal predecessors, (975), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:05,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 987 transitions. [2024-11-16 10:50:05,392 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 987 transitions. Word has length 452 [2024-11-16 10:50:05,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:05,392 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 987 transitions. [2024-11-16 10:50:05,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:05,393 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 987 transitions. [2024-11-16 10:50:05,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-11-16 10:50:05,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:05,396 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:05,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-16 10:50:05,396 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:05,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:05,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1081265526, now seen corresponding path program 1 times [2024-11-16 10:50:05,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:05,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511124465] [2024-11-16 10:50:05,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:05,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:06,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:06,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:06,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:06,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-11-16 10:50:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:06,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-11-16 10:50:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:06,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-11-16 10:50:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:06,150 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:06,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:06,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511124465] [2024-11-16 10:50:06,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511124465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:06,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:06,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:06,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238745178] [2024-11-16 10:50:06,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:06,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:06,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:06,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:06,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:06,153 INFO L87 Difference]: Start difference. First operand 708 states and 987 transitions. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:06,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:06,459 INFO L93 Difference]: Finished difference Result 1161 states and 1623 transitions. [2024-11-16 10:50:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:06,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 453 [2024-11-16 10:50:06,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:06,462 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:06,463 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:06,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:06,468 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 676 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:06,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 1219 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:06,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:06,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:06,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3914285714285715) internal successors, (974), 700 states have internal predecessors, (974), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:06,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 986 transitions. [2024-11-16 10:50:06,485 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 986 transitions. Word has length 453 [2024-11-16 10:50:06,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:06,486 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 986 transitions. [2024-11-16 10:50:06,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:06,486 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 986 transitions. [2024-11-16 10:50:06,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-16 10:50:06,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:06,489 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:06,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-16 10:50:06,489 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:06,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:06,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1240783742, now seen corresponding path program 1 times [2024-11-16 10:50:06,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:06,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344155307] [2024-11-16 10:50:06,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:06,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:07,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:07,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:07,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:07,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-11-16 10:50:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:07,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-11-16 10:50:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:07,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-16 10:50:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:07,276 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:07,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:07,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344155307] [2024-11-16 10:50:07,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344155307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:07,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:07,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:07,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303205287] [2024-11-16 10:50:07,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:07,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:07,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:07,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:07,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:07,279 INFO L87 Difference]: Start difference. First operand 708 states and 986 transitions. Second operand has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:07,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:07,560 INFO L93 Difference]: Finished difference Result 1161 states and 1621 transitions. [2024-11-16 10:50:07,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:07,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 454 [2024-11-16 10:50:07,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:07,563 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:07,563 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:07,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:07,564 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 1214 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:07,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 1212 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:07,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:07,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:07,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.39) internal successors, (973), 700 states have internal predecessors, (973), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:07,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 985 transitions. [2024-11-16 10:50:07,580 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 985 transitions. Word has length 454 [2024-11-16 10:50:07,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:07,580 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 985 transitions. [2024-11-16 10:50:07,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:07,581 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 985 transitions. [2024-11-16 10:50:07,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-16 10:50:07,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:07,584 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:07,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-16 10:50:07,584 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:07,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:07,585 INFO L85 PathProgramCache]: Analyzing trace with hash -106395323, now seen corresponding path program 1 times [2024-11-16 10:50:07,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:07,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858537417] [2024-11-16 10:50:07,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:07,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:08,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:08,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:08,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:08,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:08,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-11-16 10:50:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:08,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-11-16 10:50:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:08,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-11-16 10:50:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:08,329 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:08,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:08,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858537417] [2024-11-16 10:50:08,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858537417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:08,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:08,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:08,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883316139] [2024-11-16 10:50:08,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:08,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:08,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:08,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:08,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:08,332 INFO L87 Difference]: Start difference. First operand 708 states and 985 transitions. Second operand has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:08,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:08,571 INFO L93 Difference]: Finished difference Result 1161 states and 1619 transitions. [2024-11-16 10:50:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:08,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 455 [2024-11-16 10:50:08,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:08,575 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:08,578 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:08,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:08,579 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 645 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1251 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 [2024-11-16 10:50:08,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1251 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:08,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:08,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:08,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3885714285714286) internal successors, (972), 700 states have internal predecessors, (972), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:08,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 984 transitions. [2024-11-16 10:50:08,602 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 984 transitions. Word has length 455 [2024-11-16 10:50:08,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:08,602 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 984 transitions. [2024-11-16 10:50:08,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:08,602 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 984 transitions. [2024-11-16 10:50:08,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-16 10:50:08,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:08,607 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:08,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-16 10:50:08,608 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:08,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:08,608 INFO L85 PathProgramCache]: Analyzing trace with hash -160678287, now seen corresponding path program 1 times [2024-11-16 10:50:08,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:08,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922013593] [2024-11-16 10:50:08,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:08,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:09,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:09,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:09,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:09,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-11-16 10:50:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:09,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-16 10:50:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:09,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-11-16 10:50:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:09,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:09,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922013593] [2024-11-16 10:50:09,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922013593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:09,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:09,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:09,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401525033] [2024-11-16 10:50:09,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:09,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:09,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:09,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:09,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:09,334 INFO L87 Difference]: Start difference. First operand 708 states and 984 transitions. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:09,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:09,597 INFO L93 Difference]: Finished difference Result 1161 states and 1617 transitions. [2024-11-16 10:50:09,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:09,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 456 [2024-11-16 10:50:09,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:09,599 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:09,599 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:09,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:09,601 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 637 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 1251 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 [2024-11-16 10:50:09,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 1251 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:09,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:09,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:09,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3871428571428572) internal successors, (971), 700 states have internal predecessors, (971), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:09,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 983 transitions. [2024-11-16 10:50:09,616 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 983 transitions. Word has length 456 [2024-11-16 10:50:09,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:09,617 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 983 transitions. [2024-11-16 10:50:09,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:09,617 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 983 transitions. [2024-11-16 10:50:09,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-16 10:50:09,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:09,621 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:09,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-16 10:50:09,622 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:09,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:09,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1703164012, now seen corresponding path program 1 times [2024-11-16 10:50:09,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:09,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771272234] [2024-11-16 10:50:09,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:09,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:10,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:10,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:10,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:10,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-11-16 10:50:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:10,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-11-16 10:50:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:10,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-11-16 10:50:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:10,276 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:10,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:10,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771272234] [2024-11-16 10:50:10,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771272234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:10,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:10,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:10,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251092847] [2024-11-16 10:50:10,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:10,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:10,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:10,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:10,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:10,278 INFO L87 Difference]: Start difference. First operand 708 states and 983 transitions. Second operand has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:10,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:10,504 INFO L93 Difference]: Finished difference Result 1161 states and 1615 transitions. [2024-11-16 10:50:10,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:10,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 457 [2024-11-16 10:50:10,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:10,507 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:10,507 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:10,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:10,508 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 629 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1251 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 [2024-11-16 10:50:10,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1251 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:10,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:10,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:10,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3857142857142857) internal successors, (970), 700 states have internal predecessors, (970), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:10,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 982 transitions. [2024-11-16 10:50:10,524 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 982 transitions. Word has length 457 [2024-11-16 10:50:10,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:10,524 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 982 transitions. [2024-11-16 10:50:10,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:10,525 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 982 transitions. [2024-11-16 10:50:10,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-16 10:50:10,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:10,528 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:10,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-16 10:50:10,528 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:10,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:10,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1158972128, now seen corresponding path program 1 times [2024-11-16 10:50:10,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:10,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112218625] [2024-11-16 10:50:10,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:10,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:11,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:11,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:11,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:11,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-11-16 10:50:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:11,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-11-16 10:50:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:11,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-11-16 10:50:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:11,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:11,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112218625] [2024-11-16 10:50:11,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112218625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:11,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:11,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:11,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618637712] [2024-11-16 10:50:11,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:11,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:11,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:11,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:11,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:11,165 INFO L87 Difference]: Start difference. First operand 708 states and 982 transitions. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:11,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:11,422 INFO L93 Difference]: Finished difference Result 1161 states and 1613 transitions. [2024-11-16 10:50:11,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:11,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 458 [2024-11-16 10:50:11,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:11,425 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:11,425 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:11,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:11,426 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 1135 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 1244 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 [2024-11-16 10:50:11,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 1244 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:11,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:11,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:11,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3842857142857143) internal successors, (969), 700 states have internal predecessors, (969), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:11,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 981 transitions. [2024-11-16 10:50:11,439 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 981 transitions. Word has length 458 [2024-11-16 10:50:11,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:11,439 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 981 transitions. [2024-11-16 10:50:11,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:11,440 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 981 transitions. [2024-11-16 10:50:11,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-16 10:50:11,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:11,469 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:11,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-16 10:50:11,470 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:11,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:11,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1508591715, now seen corresponding path program 1 times [2024-11-16 10:50:11,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:11,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912093372] [2024-11-16 10:50:11,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:11,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:12,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:12,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:12,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:12,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-11-16 10:50:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:12,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-11-16 10:50:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:12,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-11-16 10:50:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:12,143 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:12,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:12,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912093372] [2024-11-16 10:50:12,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912093372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:12,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:12,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:12,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562243922] [2024-11-16 10:50:12,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:12,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:12,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:12,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:12,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:12,145 INFO L87 Difference]: Start difference. First operand 708 states and 981 transitions. Second operand has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:12,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:12,359 INFO L93 Difference]: Finished difference Result 1161 states and 1611 transitions. [2024-11-16 10:50:12,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:12,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 459 [2024-11-16 10:50:12,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:12,361 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:12,362 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:12,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:12,363 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1112 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:12,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 1262 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:12,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:12,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:12,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3828571428571428) internal successors, (968), 700 states have internal predecessors, (968), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:12,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 980 transitions. [2024-11-16 10:50:12,378 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 980 transitions. Word has length 459 [2024-11-16 10:50:12,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:12,378 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 980 transitions. [2024-11-16 10:50:12,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:12,379 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 980 transitions. [2024-11-16 10:50:12,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-16 10:50:12,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:12,382 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:12,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-16 10:50:12,382 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:12,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:12,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1732202033, now seen corresponding path program 1 times [2024-11-16 10:50:12,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:12,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453919647] [2024-11-16 10:50:12,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:12,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:13,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:13,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:13,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:13,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-11-16 10:50:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:13,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-11-16 10:50:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:13,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-11-16 10:50:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:13,137 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:13,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:13,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453919647] [2024-11-16 10:50:13,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453919647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:13,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:13,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:13,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585013072] [2024-11-16 10:50:13,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:13,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:13,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:13,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:13,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:13,140 INFO L87 Difference]: Start difference. First operand 708 states and 980 transitions. Second operand has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:13,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:13,332 INFO L93 Difference]: Finished difference Result 1161 states and 1609 transitions. [2024-11-16 10:50:13,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:13,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 460 [2024-11-16 10:50:13,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:13,335 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:13,335 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:13,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:13,336 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 598 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:13,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1269 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:13,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:13,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:13,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3814285714285715) internal successors, (967), 700 states have internal predecessors, (967), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:13,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 979 transitions. [2024-11-16 10:50:13,351 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 979 transitions. Word has length 460 [2024-11-16 10:50:13,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:13,351 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 979 transitions. [2024-11-16 10:50:13,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:13,352 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 979 transitions. [2024-11-16 10:50:13,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-16 10:50:13,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:13,354 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:13,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-16 10:50:13,355 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:13,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:13,355 INFO L85 PathProgramCache]: Analyzing trace with hash 2002111410, now seen corresponding path program 1 times [2024-11-16 10:50:13,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:13,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138568401] [2024-11-16 10:50:13,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:13,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:14,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:14,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:14,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:14,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-11-16 10:50:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:14,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-16 10:50:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:14,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-11-16 10:50:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:14,034 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:14,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:14,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138568401] [2024-11-16 10:50:14,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138568401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:14,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:14,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:14,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461733087] [2024-11-16 10:50:14,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:14,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:14,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:14,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:14,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:14,037 INFO L87 Difference]: Start difference. First operand 708 states and 979 transitions. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:14,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:14,454 INFO L93 Difference]: Finished difference Result 1161 states and 1607 transitions. [2024-11-16 10:50:14,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:14,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 461 [2024-11-16 10:50:14,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:14,457 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:14,457 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:14,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:14,460 INFO L432 NwaCegarLoop]: 483 mSDtfsCounter, 584 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:14,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 975 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:50:14,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:14,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:14,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.38) internal successors, (966), 700 states have internal predecessors, (966), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:14,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 978 transitions. [2024-11-16 10:50:14,483 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 978 transitions. Word has length 461 [2024-11-16 10:50:14,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:14,483 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 978 transitions. [2024-11-16 10:50:14,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 978 transitions. [2024-11-16 10:50:14,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-16 10:50:14,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:14,486 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:14,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-16 10:50:14,487 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:14,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:14,488 INFO L85 PathProgramCache]: Analyzing trace with hash 84773694, now seen corresponding path program 1 times [2024-11-16 10:50:14,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:14,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516806718] [2024-11-16 10:50:14,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:14,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:15,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:15,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:15,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:15,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-16 10:50:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:15,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-11-16 10:50:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:15,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-11-16 10:50:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:15,843 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:15,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:15,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516806718] [2024-11-16 10:50:15,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516806718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:15,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:15,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:15,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292662286] [2024-11-16 10:50:15,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:15,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:15,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:15,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:15,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:15,846 INFO L87 Difference]: Start difference. First operand 708 states and 978 transitions. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:16,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:16,041 INFO L93 Difference]: Finished difference Result 1161 states and 1605 transitions. [2024-11-16 10:50:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:16,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 462 [2024-11-16 10:50:16,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:16,044 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:16,044 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:16,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:16,045 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 497 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:16,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1260 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:16,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:16,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:16,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3785714285714286) internal successors, (965), 700 states have internal predecessors, (965), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:16,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 977 transitions. [2024-11-16 10:50:16,059 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 977 transitions. Word has length 462 [2024-11-16 10:50:16,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:16,060 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 977 transitions. [2024-11-16 10:50:16,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 977 transitions. [2024-11-16 10:50:16,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-16 10:50:16,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:16,063 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:16,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-16 10:50:16,063 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:16,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:16,064 INFO L85 PathProgramCache]: Analyzing trace with hash 504579019, now seen corresponding path program 1 times [2024-11-16 10:50:16,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:16,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738564395] [2024-11-16 10:50:16,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:16,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-11-16 10:50:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-11-16 10:50:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-11-16 10:50:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,261 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:17,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:17,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738564395] [2024-11-16 10:50:17,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738564395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:17,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:17,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:17,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325042465] [2024-11-16 10:50:17,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:17,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:17,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:17,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:17,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:17,264 INFO L87 Difference]: Start difference. First operand 708 states and 977 transitions. Second operand has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:17,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:17,507 INFO L93 Difference]: Finished difference Result 1161 states and 1603 transitions. [2024-11-16 10:50:17,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:17,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 463 [2024-11-16 10:50:17,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:17,509 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:17,509 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:17,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:17,510 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 656 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:17,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1243 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:17,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:17,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:17,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3771428571428572) internal successors, (964), 700 states have internal predecessors, (964), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:17,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 976 transitions. [2024-11-16 10:50:17,528 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 976 transitions. Word has length 463 [2024-11-16 10:50:17,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:17,529 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 976 transitions. [2024-11-16 10:50:17,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:17,529 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 976 transitions. [2024-11-16 10:50:17,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-11-16 10:50:17,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:17,531 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:17,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-16 10:50:17,532 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:17,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:17,533 INFO L85 PathProgramCache]: Analyzing trace with hash 2000891741, now seen corresponding path program 1 times [2024-11-16 10:50:17,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:17,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558886583] [2024-11-16 10:50:17,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:17,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:18,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:18,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:18,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:18,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-16 10:50:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:18,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-16 10:50:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:18,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-11-16 10:50:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:18,555 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:18,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:18,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558886583] [2024-11-16 10:50:18,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558886583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:18,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:18,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:18,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90086720] [2024-11-16 10:50:18,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:18,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:18,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:18,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:18,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:18,558 INFO L87 Difference]: Start difference. First operand 708 states and 976 transitions. Second operand has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:18,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:18,842 INFO L93 Difference]: Finished difference Result 1161 states and 1601 transitions. [2024-11-16 10:50:18,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:18,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 464 [2024-11-16 10:50:18,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:18,844 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:18,844 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:18,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:18,845 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 655 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:18,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1243 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:18,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:18,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:18,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3757142857142857) internal successors, (963), 700 states have internal predecessors, (963), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:18,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 975 transitions. [2024-11-16 10:50:18,859 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 975 transitions. Word has length 464 [2024-11-16 10:50:18,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:18,859 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 975 transitions. [2024-11-16 10:50:18,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:18,860 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 975 transitions. [2024-11-16 10:50:18,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-16 10:50:18,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:18,862 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:18,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-16 10:50:18,863 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:18,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:18,863 INFO L85 PathProgramCache]: Analyzing trace with hash -734707022, now seen corresponding path program 1 times [2024-11-16 10:50:18,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:18,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119449918] [2024-11-16 10:50:18,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:18,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-11-16 10:50:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-11-16 10:50:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-11-16 10:50:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,945 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:19,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:19,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119449918] [2024-11-16 10:50:19,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119449918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:19,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:19,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:19,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512372238] [2024-11-16 10:50:19,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:19,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:19,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:19,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:19,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:19,947 INFO L87 Difference]: Start difference. First operand 708 states and 975 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:20,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:20,166 INFO L93 Difference]: Finished difference Result 1161 states and 1599 transitions. [2024-11-16 10:50:20,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:20,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 465 [2024-11-16 10:50:20,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:20,168 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:20,168 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:20,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:20,169 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 506 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:20,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1236 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:20,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3742857142857143) internal successors, (962), 700 states have internal predecessors, (962), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:20,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 974 transitions. [2024-11-16 10:50:20,182 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 974 transitions. Word has length 465 [2024-11-16 10:50:20,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:20,182 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 974 transitions. [2024-11-16 10:50:20,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 974 transitions. [2024-11-16 10:50:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-11-16 10:50:20,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:20,185 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:20,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-16 10:50:20,186 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:20,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:20,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1536655046, now seen corresponding path program 1 times [2024-11-16 10:50:20,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:20,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403605745] [2024-11-16 10:50:20,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:20,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:21,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:21,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:21,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:21,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-11-16 10:50:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:21,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-16 10:50:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:21,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-11-16 10:50:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:21,519 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:21,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:21,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403605745] [2024-11-16 10:50:21,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403605745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:21,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:21,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:21,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189017897] [2024-11-16 10:50:21,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:21,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:21,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:21,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:21,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:21,521 INFO L87 Difference]: Start difference. First operand 708 states and 974 transitions. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:21,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:21,819 INFO L93 Difference]: Finished difference Result 1161 states and 1597 transitions. [2024-11-16 10:50:21,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:21,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 466 [2024-11-16 10:50:21,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:21,821 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:21,821 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:21,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:21,821 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 638 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:21,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1197 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:21,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:21,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:21,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3728571428571428) internal successors, (961), 700 states have internal predecessors, (961), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:21,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 973 transitions. [2024-11-16 10:50:21,831 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 973 transitions. Word has length 466 [2024-11-16 10:50:21,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:21,831 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 973 transitions. [2024-11-16 10:50:21,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:21,832 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 973 transitions. [2024-11-16 10:50:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-16 10:50:21,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:21,834 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:21,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-16 10:50:21,834 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:21,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1980322714, now seen corresponding path program 1 times [2024-11-16 10:50:21,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:21,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926339950] [2024-11-16 10:50:21,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:21,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-16 10:50:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-11-16 10:50:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-11-16 10:50:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,897 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:22,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:22,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926339950] [2024-11-16 10:50:22,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926339950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:22,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:22,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:22,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797063848] [2024-11-16 10:50:22,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:22,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:22,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:22,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:22,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:22,900 INFO L87 Difference]: Start difference. First operand 708 states and 973 transitions. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:23,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:23,168 INFO L93 Difference]: Finished difference Result 1161 states and 1595 transitions. [2024-11-16 10:50:23,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:23,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 467 [2024-11-16 10:50:23,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:23,170 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:23,170 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:23,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:23,171 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 1204 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:23,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 1190 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:23,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:23,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:23,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3714285714285714) internal successors, (960), 700 states have internal predecessors, (960), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:23,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 972 transitions. [2024-11-16 10:50:23,183 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 972 transitions. Word has length 467 [2024-11-16 10:50:23,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:23,184 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 972 transitions. [2024-11-16 10:50:23,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:23,184 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 972 transitions. [2024-11-16 10:50:23,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-16 10:50:23,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:23,186 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:23,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-16 10:50:23,186 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:23,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:23,186 INFO L85 PathProgramCache]: Analyzing trace with hash 760368078, now seen corresponding path program 1 times [2024-11-16 10:50:23,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:23,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2890606] [2024-11-16 10:50:23,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:23,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-11-16 10:50:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-11-16 10:50:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-11-16 10:50:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,463 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:24,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:24,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2890606] [2024-11-16 10:50:24,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2890606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:24,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:24,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:24,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699539783] [2024-11-16 10:50:24,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:24,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:24,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:24,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:24,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:24,466 INFO L87 Difference]: Start difference. First operand 708 states and 972 transitions. Second operand has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:24,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:24,681 INFO L93 Difference]: Finished difference Result 1161 states and 1593 transitions. [2024-11-16 10:50:24,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:24,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 468 [2024-11-16 10:50:24,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:24,683 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:24,683 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:24,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:24,684 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 559 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:24,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 1190 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:24,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:24,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:24,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.37) internal successors, (959), 700 states have internal predecessors, (959), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:24,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 971 transitions. [2024-11-16 10:50:24,699 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 971 transitions. Word has length 468 [2024-11-16 10:50:24,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:24,699 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 971 transitions. [2024-11-16 10:50:24,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:24,700 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 971 transitions. [2024-11-16 10:50:24,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-16 10:50:24,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:24,703 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:24,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-16 10:50:24,703 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:24,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:24,703 INFO L85 PathProgramCache]: Analyzing trace with hash -441947573, now seen corresponding path program 1 times [2024-11-16 10:50:24,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:24,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537988497] [2024-11-16 10:50:24,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:24,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:25,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:25,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:25,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:25,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-11-16 10:50:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:25,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-11-16 10:50:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:25,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-11-16 10:50:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:25,827 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:25,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:25,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537988497] [2024-11-16 10:50:25,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537988497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:25,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:25,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:25,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433824516] [2024-11-16 10:50:25,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:25,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:25,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:25,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:25,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:25,831 INFO L87 Difference]: Start difference. First operand 708 states and 971 transitions. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:26,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:26,121 INFO L93 Difference]: Finished difference Result 1161 states and 1591 transitions. [2024-11-16 10:50:26,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:26,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 469 [2024-11-16 10:50:26,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:26,123 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:26,123 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:26,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:26,124 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 1184 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:26,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 1190 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:26,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:26,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:26,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3685714285714285) internal successors, (958), 700 states have internal predecessors, (958), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:26,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 970 transitions. [2024-11-16 10:50:26,138 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 970 transitions. Word has length 469 [2024-11-16 10:50:26,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:26,138 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 970 transitions. [2024-11-16 10:50:26,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:26,138 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 970 transitions. [2024-11-16 10:50:26,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-11-16 10:50:26,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:26,141 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:26,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-16 10:50:26,141 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:26,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:26,142 INFO L85 PathProgramCache]: Analyzing trace with hash -863600674, now seen corresponding path program 1 times [2024-11-16 10:50:26,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:26,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703203800] [2024-11-16 10:50:26,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:26,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-11-16 10:50:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-11-16 10:50:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-11-16 10:50:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,111 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:27,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:27,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703203800] [2024-11-16 10:50:27,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703203800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:27,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:27,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:27,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267293317] [2024-11-16 10:50:27,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:27,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:27,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:27,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:27,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:27,114 INFO L87 Difference]: Start difference. First operand 708 states and 970 transitions. Second operand has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:27,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:27,369 INFO L93 Difference]: Finished difference Result 1161 states and 1589 transitions. [2024-11-16 10:50:27,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:27,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 470 [2024-11-16 10:50:27,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:27,370 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:27,371 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:27,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:27,371 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 1174 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:27,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1174 Valid, 1190 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:27,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:27,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:27,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3671428571428572) internal successors, (957), 700 states have internal predecessors, (957), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:27,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 969 transitions. [2024-11-16 10:50:27,383 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 969 transitions. Word has length 470 [2024-11-16 10:50:27,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:27,384 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 969 transitions. [2024-11-16 10:50:27,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:27,384 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 969 transitions. [2024-11-16 10:50:27,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-16 10:50:27,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:27,387 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:27,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-16 10:50:27,387 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:27,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:27,388 INFO L85 PathProgramCache]: Analyzing trace with hash 320018560, now seen corresponding path program 1 times [2024-11-16 10:50:27,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:27,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733921908] [2024-11-16 10:50:27,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:27,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:28,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:28,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:28,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:28,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-11-16 10:50:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:28,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-11-16 10:50:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:28,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-11-16 10:50:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:28,477 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:28,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:28,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733921908] [2024-11-16 10:50:28,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733921908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:28,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:28,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:28,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313929229] [2024-11-16 10:50:28,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:28,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:28,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:28,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:28,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:28,479 INFO L87 Difference]: Start difference. First operand 708 states and 969 transitions. Second operand has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:28,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:28,739 INFO L93 Difference]: Finished difference Result 1161 states and 1587 transitions. [2024-11-16 10:50:28,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:28,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 471 [2024-11-16 10:50:28,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:28,741 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:28,741 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:28,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:28,742 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 1164 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:28,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 1190 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:28,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:28,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:28,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3657142857142857) internal successors, (956), 700 states have internal predecessors, (956), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:28,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 968 transitions. [2024-11-16 10:50:28,756 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 968 transitions. Word has length 471 [2024-11-16 10:50:28,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:28,757 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 968 transitions. [2024-11-16 10:50:28,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:28,757 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 968 transitions. [2024-11-16 10:50:28,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-16 10:50:28,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:28,760 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:28,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-16 10:50:28,760 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:28,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:28,760 INFO L85 PathProgramCache]: Analyzing trace with hash -129596570, now seen corresponding path program 1 times [2024-11-16 10:50:28,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:28,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097353029] [2024-11-16 10:50:28,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:28,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-16 10:50:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-11-16 10:50:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-11-16 10:50:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,860 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:29,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:29,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097353029] [2024-11-16 10:50:29,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097353029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:29,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:29,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:29,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491840989] [2024-11-16 10:50:29,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:29,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:29,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:29,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:29,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:29,863 INFO L87 Difference]: Start difference. First operand 708 states and 968 transitions. Second operand has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:30,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:30,121 INFO L93 Difference]: Finished difference Result 1161 states and 1585 transitions. [2024-11-16 10:50:30,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:30,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 472 [2024-11-16 10:50:30,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:30,122 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:50:30,123 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:50:30,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:30,123 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 1154 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:30,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 1190 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:30,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:50:30,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:50:30,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3642857142857143) internal successors, (955), 700 states have internal predecessors, (955), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:30,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 967 transitions. [2024-11-16 10:50:30,137 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 967 transitions. Word has length 472 [2024-11-16 10:50:30,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:30,138 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 967 transitions. [2024-11-16 10:50:30,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:30,138 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 967 transitions. [2024-11-16 10:50:30,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-16 10:50:30,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:30,141 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:30,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-16 10:50:30,141 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:30,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:30,142 INFO L85 PathProgramCache]: Analyzing trace with hash 246734616, now seen corresponding path program 1 times [2024-11-16 10:50:30,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:30,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073149174] [2024-11-16 10:50:30,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:30,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:31,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:31,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:31,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:31,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-11-16 10:50:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:31,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-11-16 10:50:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:31,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-11-16 10:50:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:31,325 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:31,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:31,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073149174] [2024-11-16 10:50:31,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073149174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:31,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:31,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 10:50:31,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200811422] [2024-11-16 10:50:31,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:31,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 10:50:31,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:31,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 10:50:31,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:31,327 INFO L87 Difference]: Start difference. First operand 708 states and 967 transitions. Second operand has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)