./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d64_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d64_e0.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 37b9b8ec440d8991dc3727380b4be6828a792e90eed7435c28533f7504462b47 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 05:17:21,941 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 05:17:22,012 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 05:17:22,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 05:17:22,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 05:17:22,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 05:17:22,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 05:17:22,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 05:17:22,037 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 05:17:22,037 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 05:17:22,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 05:17:22,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 05:17:22,038 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 05:17:22,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 05:17:22,039 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 05:17:22,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 05:17:22,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 05:17:22,040 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 05:17:22,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 05:17:22,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 05:17:22,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 05:17:22,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 05:17:22,044 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 05:17:22,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 05:17:22,047 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 05:17:22,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 05:17:22,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 05:17:22,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 05:17:22,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 05:17:22,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:17:22,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 05:17:22,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 05:17:22,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 05:17:22,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 05:17:22,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 05:17:22,050 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 05:17:22,050 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 05:17:22,050 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 05:17:22,051 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 05:17:22,051 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37b9b8ec440d8991dc3727380b4be6828a792e90eed7435c28533f7504462b47 [2024-10-11 05:17:22,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 05:17:22,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 05:17:22,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 05:17:22,345 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 05:17:22,345 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 05:17:22,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d64_e0.c [2024-10-11 05:17:23,770 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 05:17:24,163 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 05:17:24,164 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d64_e0.c [2024-10-11 05:17:24,199 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/17c3f0fa1/25bae1c7fafe4cb78d894224accd1447/FLAGbd8c8daae [2024-10-11 05:17:24,355 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/17c3f0fa1/25bae1c7fafe4cb78d894224accd1447 [2024-10-11 05:17:24,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 05:17:24,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 05:17:24,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 05:17:24,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 05:17:24,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 05:17:24,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:17:24" (1/1) ... [2024-10-11 05:17:24,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f05e7ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:24, skipping insertion in model container [2024-10-11 05:17:24,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:17:24" (1/1) ... [2024-10-11 05:17:24,503 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 05:17:24,772 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d64_e0.c[1271,1284] [2024-10-11 05:17:25,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:17:25,384 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 05:17:25,397 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d64_e0.c[1271,1284] [2024-10-11 05:17:25,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:17:25,771 INFO L204 MainTranslator]: Completed translation [2024-10-11 05:17:25,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25 WrapperNode [2024-10-11 05:17:25,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 05:17:25,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 05:17:25,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 05:17:25,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 05:17:25,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25" (1/1) ... [2024-10-11 05:17:25,911 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25" (1/1) ... [2024-10-11 05:17:27,347 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 9959 [2024-10-11 05:17:27,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 05:17:27,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 05:17:27,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 05:17:27,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 05:17:27,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25" (1/1) ... [2024-10-11 05:17:27,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25" (1/1) ... [2024-10-11 05:17:27,581 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25" (1/1) ... [2024-10-11 05:17:27,918 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 05:17:27,919 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25" (1/1) ... [2024-10-11 05:17:27,919 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25" (1/1) ... [2024-10-11 05:17:28,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25" (1/1) ... [2024-10-11 05:17:28,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25" (1/1) ... [2024-10-11 05:17:28,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25" (1/1) ... [2024-10-11 05:17:28,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25" (1/1) ... [2024-10-11 05:17:28,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 05:17:28,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 05:17:28,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 05:17:28,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 05:17:28,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25" (1/1) ... [2024-10-11 05:17:28,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:17:29,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:17:29,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 05:17:29,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 05:17:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 05:17:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 05:17:29,149 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 05:17:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 05:17:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 05:17:29,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 05:17:29,902 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 05:17:29,904 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 05:17:42,572 INFO L? ?]: Removed 5764 outVars from TransFormulas that were not future-live. [2024-10-11 05:17:42,572 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 05:17:42,767 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 05:17:42,770 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 05:17:42,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:17:42 BoogieIcfgContainer [2024-10-11 05:17:42,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 05:17:42,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 05:17:42,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 05:17:42,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 05:17:42,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:17:24" (1/3) ... [2024-10-11 05:17:42,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e03bf4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:17:42, skipping insertion in model container [2024-10-11 05:17:42,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:17:25" (2/3) ... [2024-10-11 05:17:42,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e03bf4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:17:42, skipping insertion in model container [2024-10-11 05:17:42,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:17:42" (3/3) ... [2024-10-11 05:17:42,782 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n2_w16_d64_e0.c [2024-10-11 05:17:42,797 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 05:17:42,797 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 05:17:42,915 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 05:17:42,920 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;@618b61c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 05:17:42,921 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 05:17:42,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 2693 states, 2683 states have (on average 1.4986954901229967) internal successors, (4021), 2684 states have internal predecessors, (4021), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:17:42,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2024-10-11 05:17:42,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:17:42,978 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:17:42,978 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:17:42,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:17:42,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1771262499, now seen corresponding path program 1 times [2024-10-11 05:17:42,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:17:42,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772319977] [2024-10-11 05:17:42,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:17:42,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:17:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:44,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:17:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:44,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:17:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:44,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:17:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:44,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:17:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:44,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:17:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:44,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:17:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:44,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:17:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:17:44,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:17:44,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772319977] [2024-10-11 05:17:44,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772319977] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:17:44,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:17:44,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 05:17:44,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072640931] [2024-10-11 05:17:44,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:17:44,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 05:17:44,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:17:44,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 05:17:44,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:17:44,481 INFO L87 Difference]: Start difference. First operand has 2693 states, 2683 states have (on average 1.4986954901229967) internal successors, (4021), 2684 states have internal predecessors, (4021), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 315.0) internal successors, (630), 2 states have internal predecessors, (630), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-11 05:17:44,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:17:44,615 INFO L93 Difference]: Finished difference Result 4820 states and 7230 transitions. [2024-10-11 05:17:44,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 05:17:44,618 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 315.0) internal successors, (630), 2 states have internal predecessors, (630), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 662 [2024-10-11 05:17:44,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:17:44,645 INFO L225 Difference]: With dead ends: 4820 [2024-10-11 05:17:44,646 INFO L226 Difference]: Without dead ends: 2692 [2024-10-11 05:17:44,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:17:44,659 INFO L432 NwaCegarLoop]: 4031 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4031 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:17:44,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4031 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:17:44,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2692 states. [2024-10-11 05:17:44,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2692 to 2692. [2024-10-11 05:17:44,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2683 states have (on average 1.497577338799851) internal successors, (4018), 2683 states have internal predecessors, (4018), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:17:44,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 4032 transitions. [2024-10-11 05:17:44,817 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 4032 transitions. Word has length 662 [2024-10-11 05:17:44,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:17:44,821 INFO L471 AbstractCegarLoop]: Abstraction has 2692 states and 4032 transitions. [2024-10-11 05:17:44,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 315.0) internal successors, (630), 2 states have internal predecessors, (630), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-11 05:17:44,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 4032 transitions. [2024-10-11 05:17:44,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2024-10-11 05:17:44,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:17:44,838 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:17:44,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 05:17:44,839 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:17:44,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:17:44,841 INFO L85 PathProgramCache]: Analyzing trace with hash -172306289, now seen corresponding path program 1 times [2024-10-11 05:17:44,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:17:44,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603991621] [2024-10-11 05:17:44,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:17:44,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:17:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:48,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:17:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:48,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:17:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:48,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:17:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:48,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:17:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:48,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:17:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:48,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:17:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:48,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:17:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:17:48,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:17:48,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603991621] [2024-10-11 05:17:48,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603991621] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:17:48,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:17:48,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:17:48,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183391650] [2024-10-11 05:17:48,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:17:48,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:17:48,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:17:48,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:17:48,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:17:48,818 INFO L87 Difference]: Start difference. First operand 2692 states and 4032 transitions. Second operand has 4 states, 4 states have (on average 157.5) internal successors, (630), 4 states have internal predecessors, (630), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:17:48,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:17:48,943 INFO L93 Difference]: Finished difference Result 2696 states and 4036 transitions. [2024-10-11 05:17:48,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:17:48,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 157.5) internal successors, (630), 4 states have internal predecessors, (630), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 662 [2024-10-11 05:17:48,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:17:48,960 INFO L225 Difference]: With dead ends: 2696 [2024-10-11 05:17:48,960 INFO L226 Difference]: Without dead ends: 2694 [2024-10-11 05:17:48,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:17:48,966 INFO L432 NwaCegarLoop]: 4029 mSDtfsCounter, 0 mSDsluCounter, 8053 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12082 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:17:48,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12082 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:17:48,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2024-10-11 05:17:49,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 2694. [2024-10-11 05:17:49,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2694 states, 2685 states have (on average 1.4972067039106145) internal successors, (4020), 2685 states have internal predecessors, (4020), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:17:49,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 4034 transitions. [2024-10-11 05:17:49,044 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 4034 transitions. Word has length 662 [2024-10-11 05:17:49,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:17:49,047 INFO L471 AbstractCegarLoop]: Abstraction has 2694 states and 4034 transitions. [2024-10-11 05:17:49,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 157.5) internal successors, (630), 4 states have internal predecessors, (630), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:17:49,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 4034 transitions. [2024-10-11 05:17:49,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2024-10-11 05:17:49,065 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:17:49,065 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:17:49,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 05:17:49,066 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:17:49,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:17:49,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1044828492, now seen corresponding path program 1 times [2024-10-11 05:17:49,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:17:49,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983373778] [2024-10-11 05:17:49,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:17:49,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:17:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:52,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:17:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:52,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:17:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:52,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:17:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:52,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:17:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:52,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:17:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:52,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:17:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:52,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:17:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:52,147 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:17:52,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:17:52,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983373778] [2024-10-11 05:17:52,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983373778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:17:52,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:17:52,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:17:52,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35056278] [2024-10-11 05:17:52,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:17:52,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:17:52,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:17:52,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:17:52,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:17:52,156 INFO L87 Difference]: Start difference. First operand 2694 states and 4034 transitions. Second operand has 5 states, 5 states have (on average 126.2) internal successors, (631), 5 states have internal predecessors, (631), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:17:54,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:17:54,090 INFO L93 Difference]: Finished difference Result 6606 states and 9894 transitions. [2024-10-11 05:17:54,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 05:17:54,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 126.2) internal successors, (631), 5 states have internal predecessors, (631), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 663 [2024-10-11 05:17:54,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:17:54,103 INFO L225 Difference]: With dead ends: 6606 [2024-10-11 05:17:54,104 INFO L226 Difference]: Without dead ends: 2694 [2024-10-11 05:17:54,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 05:17:54,111 INFO L432 NwaCegarLoop]: 4015 mSDtfsCounter, 8208 mSDsluCounter, 7195 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8208 SdHoareTripleChecker+Valid, 11210 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 05:17:54,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8208 Valid, 11210 Invalid, 1442 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [175 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 05:17:54,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2024-10-11 05:17:54,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 2694. [2024-10-11 05:17:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2694 states, 2685 states have (on average 1.4968342644320298) internal successors, (4019), 2685 states have internal predecessors, (4019), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:17:54,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 4033 transitions. [2024-10-11 05:17:54,187 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 4033 transitions. Word has length 663 [2024-10-11 05:17:54,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:17:54,188 INFO L471 AbstractCegarLoop]: Abstraction has 2694 states and 4033 transitions. [2024-10-11 05:17:54,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 126.2) internal successors, (631), 5 states have internal predecessors, (631), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:17:54,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 4033 transitions. [2024-10-11 05:17:54,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2024-10-11 05:17:54,207 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:17:54,207 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:17:54,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 05:17:54,208 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:17:54,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:17:54,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1661799800, now seen corresponding path program 1 times [2024-10-11 05:17:54,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:17:54,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764539730] [2024-10-11 05:17:54,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:17:54,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:17:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:56,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:17:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:56,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:17:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:56,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:17:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:56,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:17:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:56,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:17:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:56,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:17:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:56,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:17:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:17:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:17:56,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:17:56,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764539730] [2024-10-11 05:17:56,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764539730] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:17:56,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:17:56,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:17:56,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66519798] [2024-10-11 05:17:56,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:17:56,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:17:56,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:17:56,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:17:56,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:17:56,707 INFO L87 Difference]: Start difference. First operand 2694 states and 4033 transitions. Second operand has 5 states, 5 states have (on average 126.4) internal successors, (632), 5 states have internal predecessors, (632), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:17:58,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:17:58,190 INFO L93 Difference]: Finished difference Result 4823 states and 7219 transitions. [2024-10-11 05:17:58,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:17:58,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 126.4) internal successors, (632), 5 states have internal predecessors, (632), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 664 [2024-10-11 05:17:58,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:17:58,203 INFO L225 Difference]: With dead ends: 4823 [2024-10-11 05:17:58,203 INFO L226 Difference]: Without dead ends: 2694 [2024-10-11 05:17:58,208 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 [2024-10-11 05:17:58,209 INFO L432 NwaCegarLoop]: 3157 mSDtfsCounter, 3888 mSDsluCounter, 3169 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3895 SdHoareTripleChecker+Valid, 6326 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 05:17:58,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3895 Valid, 6326 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 05:17:58,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2024-10-11 05:17:58,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 2694. [2024-10-11 05:17:58,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2694 states, 2685 states have (on average 1.4964618249534452) internal successors, (4018), 2685 states have internal predecessors, (4018), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:17:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 4032 transitions. [2024-10-11 05:17:58,273 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 4032 transitions. Word has length 664 [2024-10-11 05:17:58,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:17:58,274 INFO L471 AbstractCegarLoop]: Abstraction has 2694 states and 4032 transitions. [2024-10-11 05:17:58,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 126.4) internal successors, (632), 5 states have internal predecessors, (632), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:17:58,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 4032 transitions. [2024-10-11 05:17:58,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2024-10-11 05:17:58,280 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:17:58,281 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:17:58,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 05:17:58,282 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:17:58,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:17:58,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1969432179, now seen corresponding path program 1 times [2024-10-11 05:17:58,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:17:58,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614019925] [2024-10-11 05:17:58,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:17:58,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:17:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:00,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:00,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:00,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:00,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:00,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:00,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:00,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:00,143 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:00,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:00,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614019925] [2024-10-11 05:18:00,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614019925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:00,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:00,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:18:00,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340075976] [2024-10-11 05:18:00,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:00,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:18:00,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:00,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:18:00,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:18:00,148 INFO L87 Difference]: Start difference. First operand 2694 states and 4032 transitions. Second operand has 4 states, 4 states have (on average 158.25) internal successors, (633), 4 states have internal predecessors, (633), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:00,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:00,256 INFO L93 Difference]: Finished difference Result 4825 states and 7220 transitions. [2024-10-11 05:18:00,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:00,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 158.25) internal successors, (633), 4 states have internal predecessors, (633), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 665 [2024-10-11 05:18:00,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:00,269 INFO L225 Difference]: With dead ends: 4825 [2024-10-11 05:18:00,269 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:00,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:18:00,276 INFO L432 NwaCegarLoop]: 4027 mSDtfsCounter, 0 mSDsluCounter, 8046 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12073 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:00,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12073 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:18:00,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:00,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:00,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.4960922962411611) internal successors, (4020), 2687 states have internal predecessors, (4020), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:00,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4034 transitions. [2024-10-11 05:18:00,342 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4034 transitions. Word has length 665 [2024-10-11 05:18:00,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:00,343 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4034 transitions. [2024-10-11 05:18:00,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 158.25) internal successors, (633), 4 states have internal predecessors, (633), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:00,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4034 transitions. [2024-10-11 05:18:00,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2024-10-11 05:18:00,349 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:00,350 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:00,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 05:18:00,350 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:00,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:00,351 INFO L85 PathProgramCache]: Analyzing trace with hash -2020817329, now seen corresponding path program 1 times [2024-10-11 05:18:00,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:00,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807490039] [2024-10-11 05:18:00,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:00,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:02,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:02,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:02,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:02,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:02,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:02,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:02,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:02,670 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:02,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:02,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807490039] [2024-10-11 05:18:02,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807490039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:02,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:02,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:18:02,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496771393] [2024-10-11 05:18:02,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:02,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:18:02,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:02,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:18:02,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:18:02,675 INFO L87 Difference]: Start difference. First operand 2696 states and 4034 transitions. Second operand has 4 states, 4 states have (on average 158.5) internal successors, (634), 4 states have internal predecessors, (634), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:03,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:03,064 INFO L93 Difference]: Finished difference Result 4827 states and 7221 transitions. [2024-10-11 05:18:03,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:03,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 158.5) internal successors, (634), 4 states have internal predecessors, (634), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 666 [2024-10-11 05:18:03,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:03,076 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:03,077 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:03,080 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 [2024-10-11 05:18:03,081 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 3504 mSDsluCounter, 3857 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 7712 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:03,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3504 Valid, 7712 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 05:18:03,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:03,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:03,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.4957201339784145) internal successors, (4019), 2687 states have internal predecessors, (4019), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4033 transitions. [2024-10-11 05:18:03,135 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4033 transitions. Word has length 666 [2024-10-11 05:18:03,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:03,136 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4033 transitions. [2024-10-11 05:18:03,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 158.5) internal successors, (634), 4 states have internal predecessors, (634), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:03,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4033 transitions. [2024-10-11 05:18:03,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2024-10-11 05:18:03,142 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:03,143 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:03,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 05:18:03,143 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:03,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:03,144 INFO L85 PathProgramCache]: Analyzing trace with hash -863283115, now seen corresponding path program 1 times [2024-10-11 05:18:03,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:03,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455095841] [2024-10-11 05:18:03,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:03,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:04,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:04,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:04,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:04,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:04,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:04,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:04,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:04,636 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:04,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:04,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455095841] [2024-10-11 05:18:04,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455095841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:04,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:04,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:04,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435562198] [2024-10-11 05:18:04,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:04,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:04,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:04,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:04,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:04,641 INFO L87 Difference]: Start difference. First operand 2696 states and 4033 transitions. Second operand has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:04,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:04,944 INFO L93 Difference]: Finished difference Result 5065 states and 7574 transitions. [2024-10-11 05:18:04,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 05:18:04,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 667 [2024-10-11 05:18:04,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:04,956 INFO L225 Difference]: With dead ends: 5065 [2024-10-11 05:18:04,956 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:04,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 05:18:04,962 INFO L432 NwaCegarLoop]: 4009 mSDtfsCounter, 4193 mSDsluCounter, 7873 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4193 SdHoareTripleChecker+Valid, 11882 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:04,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4193 Valid, 11882 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 05:18:04,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:05,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:05,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.4953479717156681) internal successors, (4018), 2687 states have internal predecessors, (4018), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:05,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4032 transitions. [2024-10-11 05:18:05,020 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4032 transitions. Word has length 667 [2024-10-11 05:18:05,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:05,022 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4032 transitions. [2024-10-11 05:18:05,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:05,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4032 transitions. [2024-10-11 05:18:05,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2024-10-11 05:18:05,028 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:05,029 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:05,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 05:18:05,029 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:05,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:05,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1293957560, now seen corresponding path program 1 times [2024-10-11 05:18:05,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:05,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633308047] [2024-10-11 05:18:05,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:05,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:06,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:06,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:06,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:06,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:06,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:06,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:06,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:06,404 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:06,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:06,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633308047] [2024-10-11 05:18:06,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633308047] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:06,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:06,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:06,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772230760] [2024-10-11 05:18:06,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:06,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:06,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:06,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:06,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:06,407 INFO L87 Difference]: Start difference. First operand 2696 states and 4032 transitions. Second operand has 5 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:06,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:06,767 INFO L93 Difference]: Finished difference Result 4827 states and 7217 transitions. [2024-10-11 05:18:06,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:06,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 668 [2024-10-11 05:18:06,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:06,778 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:06,778 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:06,782 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 [2024-10-11 05:18:06,783 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 4009 mSDsluCounter, 3867 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4016 SdHoareTripleChecker+Valid, 7722 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:06,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4016 Valid, 7722 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 05:18:06,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:06,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:06,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.4949758094529215) internal successors, (4017), 2687 states have internal predecessors, (4017), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:06,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4031 transitions. [2024-10-11 05:18:06,841 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4031 transitions. Word has length 668 [2024-10-11 05:18:06,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:06,843 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4031 transitions. [2024-10-11 05:18:06,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:06,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4031 transitions. [2024-10-11 05:18:06,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2024-10-11 05:18:06,848 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:06,849 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:06,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 05:18:06,849 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:06,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:06,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2040190958, now seen corresponding path program 1 times [2024-10-11 05:18:06,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:06,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000167392] [2024-10-11 05:18:06,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:06,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:08,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:08,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:08,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:08,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:08,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:08,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:08,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:08,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:08,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000167392] [2024-10-11 05:18:08,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000167392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:08,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:08,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:08,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965424341] [2024-10-11 05:18:08,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:08,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:08,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:08,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:08,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:08,222 INFO L87 Difference]: Start difference. First operand 2696 states and 4031 transitions. Second operand has 5 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:08,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:08,530 INFO L93 Difference]: Finished difference Result 4827 states and 7215 transitions. [2024-10-11 05:18:08,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:08,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 669 [2024-10-11 05:18:08,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:08,541 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:08,542 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:08,545 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 [2024-10-11 05:18:08,546 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 7629 mSDsluCounter, 3857 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7636 SdHoareTripleChecker+Valid, 7712 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:08,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7636 Valid, 7712 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 05:18:08,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:08,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:08,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.494603647190175) internal successors, (4016), 2687 states have internal predecessors, (4016), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:08,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4030 transitions. [2024-10-11 05:18:08,593 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4030 transitions. Word has length 669 [2024-10-11 05:18:08,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:08,594 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4030 transitions. [2024-10-11 05:18:08,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:08,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4030 transitions. [2024-10-11 05:18:08,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2024-10-11 05:18:08,600 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:08,601 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:08,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 05:18:08,602 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:08,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:08,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1880830479, now seen corresponding path program 1 times [2024-10-11 05:18:08,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:08,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42649481] [2024-10-11 05:18:08,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:08,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:09,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:09,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:09,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:09,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:09,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:09,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:09,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:09,775 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:09,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:09,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42649481] [2024-10-11 05:18:09,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42649481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:09,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:09,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:09,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410679027] [2024-10-11 05:18:09,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:09,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:09,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:09,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:09,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:09,779 INFO L87 Difference]: Start difference. First operand 2696 states and 4030 transitions. Second operand has 5 states, 5 states have (on average 127.6) internal successors, (638), 5 states have internal predecessors, (638), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:10,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:10,101 INFO L93 Difference]: Finished difference Result 4827 states and 7213 transitions. [2024-10-11 05:18:10,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:10,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 127.6) internal successors, (638), 5 states have internal predecessors, (638), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 670 [2024-10-11 05:18:10,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:10,110 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:10,110 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:10,113 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 [2024-10-11 05:18:10,114 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 4001 mSDsluCounter, 3867 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4008 SdHoareTripleChecker+Valid, 7722 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:10,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4008 Valid, 7722 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 05:18:10,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:10,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:10,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.4942314849274283) internal successors, (4015), 2687 states have internal predecessors, (4015), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:10,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4029 transitions. [2024-10-11 05:18:10,155 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4029 transitions. Word has length 670 [2024-10-11 05:18:10,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:10,156 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4029 transitions. [2024-10-11 05:18:10,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.6) internal successors, (638), 5 states have internal predecessors, (638), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:10,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4029 transitions. [2024-10-11 05:18:10,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2024-10-11 05:18:10,162 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:10,162 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:10,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 05:18:10,163 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:10,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:10,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1491169287, now seen corresponding path program 1 times [2024-10-11 05:18:10,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:10,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606709457] [2024-10-11 05:18:10,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:10,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:11,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:11,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:11,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:11,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:11,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:11,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:11,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:11,313 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:11,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:11,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606709457] [2024-10-11 05:18:11,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606709457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:11,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:11,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:11,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314468629] [2024-10-11 05:18:11,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:11,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:11,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:11,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:11,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:11,320 INFO L87 Difference]: Start difference. First operand 2696 states and 4029 transitions. Second operand has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:11,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:11,633 INFO L93 Difference]: Finished difference Result 4827 states and 7211 transitions. [2024-10-11 05:18:11,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:11,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 671 [2024-10-11 05:18:11,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:11,640 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:11,640 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:11,644 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 [2024-10-11 05:18:11,645 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 3997 mSDsluCounter, 3867 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4004 SdHoareTripleChecker+Valid, 7722 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:11,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4004 Valid, 7722 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 05:18:11,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:11,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:11,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.493859322664682) internal successors, (4014), 2687 states have internal predecessors, (4014), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4028 transitions. [2024-10-11 05:18:11,688 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4028 transitions. Word has length 671 [2024-10-11 05:18:11,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:11,689 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4028 transitions. [2024-10-11 05:18:11,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4028 transitions. [2024-10-11 05:18:11,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2024-10-11 05:18:11,694 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:11,695 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:11,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 05:18:11,695 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:11,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:11,696 INFO L85 PathProgramCache]: Analyzing trace with hash 718635690, now seen corresponding path program 1 times [2024-10-11 05:18:11,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:11,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703327311] [2024-10-11 05:18:11,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:11,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:12,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:12,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:12,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:12,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:12,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:12,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:12,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:12,879 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:12,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:12,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703327311] [2024-10-11 05:18:12,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703327311] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:12,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:12,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:12,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284907957] [2024-10-11 05:18:12,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:12,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:12,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:12,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:12,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:12,883 INFO L87 Difference]: Start difference. First operand 2696 states and 4028 transitions. Second operand has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:13,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:13,263 INFO L93 Difference]: Finished difference Result 4827 states and 7209 transitions. [2024-10-11 05:18:13,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:13,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 672 [2024-10-11 05:18:13,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:13,270 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:13,270 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:13,273 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 [2024-10-11 05:18:13,274 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 7605 mSDsluCounter, 3857 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7612 SdHoareTripleChecker+Valid, 7712 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:13,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7612 Valid, 7712 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 05:18:13,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:13,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:13,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.4934871604019353) internal successors, (4013), 2687 states have internal predecessors, (4013), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:13,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4027 transitions. [2024-10-11 05:18:13,324 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4027 transitions. Word has length 672 [2024-10-11 05:18:13,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:13,325 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4027 transitions. [2024-10-11 05:18:13,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:13,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4027 transitions. [2024-10-11 05:18:13,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2024-10-11 05:18:13,331 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:13,331 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:13,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 05:18:13,331 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:13,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:13,332 INFO L85 PathProgramCache]: Analyzing trace with hash 754344096, now seen corresponding path program 1 times [2024-10-11 05:18:13,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:13,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318918015] [2024-10-11 05:18:13,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:13,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:14,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:14,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:14,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:14,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:14,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:14,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:14,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:14,589 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:14,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:14,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318918015] [2024-10-11 05:18:14,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318918015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:14,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:14,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:14,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822795744] [2024-10-11 05:18:14,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:14,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:14,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:14,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:14,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:14,592 INFO L87 Difference]: Start difference. First operand 2696 states and 4027 transitions. Second operand has 5 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:14,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:14,888 INFO L93 Difference]: Finished difference Result 4827 states and 7207 transitions. [2024-10-11 05:18:14,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:14,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 673 [2024-10-11 05:18:14,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:14,893 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:14,893 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:14,896 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 [2024-10-11 05:18:14,896 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 3989 mSDsluCounter, 3867 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3996 SdHoareTripleChecker+Valid, 7722 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:14,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3996 Valid, 7722 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 05:18:14,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:14,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:14,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.4931149981391887) internal successors, (4012), 2687 states have internal predecessors, (4012), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:14,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4026 transitions. [2024-10-11 05:18:14,935 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4026 transitions. Word has length 673 [2024-10-11 05:18:14,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:14,936 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4026 transitions. [2024-10-11 05:18:14,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4026 transitions. [2024-10-11 05:18:14,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2024-10-11 05:18:14,943 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:14,943 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:14,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 05:18:14,944 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:14,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:14,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1094739997, now seen corresponding path program 1 times [2024-10-11 05:18:14,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:14,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377194058] [2024-10-11 05:18:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:14,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:16,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:16,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:16,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:16,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:16,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:16,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:16,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:16,188 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:16,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:16,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377194058] [2024-10-11 05:18:16,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377194058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:16,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:16,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:16,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240766957] [2024-10-11 05:18:16,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:16,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:16,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:16,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:16,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:16,192 INFO L87 Difference]: Start difference. First operand 2696 states and 4026 transitions. Second operand has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:16,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:16,517 INFO L93 Difference]: Finished difference Result 4827 states and 7205 transitions. [2024-10-11 05:18:16,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:16,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 674 [2024-10-11 05:18:16,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:16,523 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:16,523 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:16,526 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 [2024-10-11 05:18:16,527 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 7589 mSDsluCounter, 3857 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7596 SdHoareTripleChecker+Valid, 7712 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:16,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7596 Valid, 7712 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 05:18:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:16,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:16,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.492742835876442) internal successors, (4011), 2687 states have internal predecessors, (4011), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:16,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4025 transitions. [2024-10-11 05:18:16,564 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4025 transitions. Word has length 674 [2024-10-11 05:18:16,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:16,565 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4025 transitions. [2024-10-11 05:18:16,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:16,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4025 transitions. [2024-10-11 05:18:16,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2024-10-11 05:18:16,571 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:16,571 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:16,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 05:18:16,571 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:16,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:16,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1951459769, now seen corresponding path program 1 times [2024-10-11 05:18:16,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:16,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716816305] [2024-10-11 05:18:16,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:16,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:17,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:17,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:17,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:17,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:17,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:17,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:17,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:17,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:17,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716816305] [2024-10-11 05:18:17,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716816305] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:17,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:17,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:17,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811722510] [2024-10-11 05:18:17,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:17,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:17,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:17,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:17,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:17,912 INFO L87 Difference]: Start difference. First operand 2696 states and 4025 transitions. Second operand has 5 states, 5 states have (on average 128.6) internal successors, (643), 5 states have internal predecessors, (643), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:18,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:18,204 INFO L93 Difference]: Finished difference Result 4827 states and 7203 transitions. [2024-10-11 05:18:18,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:18,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 128.6) internal successors, (643), 5 states have internal predecessors, (643), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 675 [2024-10-11 05:18:18,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:18,209 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:18,209 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:18,212 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 [2024-10-11 05:18:18,213 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 7359 mSDsluCounter, 3857 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7366 SdHoareTripleChecker+Valid, 7712 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:18,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7366 Valid, 7712 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 05:18:18,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:18,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.4923706736136955) internal successors, (4010), 2687 states have internal predecessors, (4010), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:18,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4024 transitions. [2024-10-11 05:18:18,249 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4024 transitions. Word has length 675 [2024-10-11 05:18:18,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:18,249 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4024 transitions. [2024-10-11 05:18:18,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.6) internal successors, (643), 5 states have internal predecessors, (643), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:18,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4024 transitions. [2024-10-11 05:18:18,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2024-10-11 05:18:18,255 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:18,256 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:18,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 05:18:18,256 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:18,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:18,256 INFO L85 PathProgramCache]: Analyzing trace with hash -616248163, now seen corresponding path program 1 times [2024-10-11 05:18:18,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:18,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720589668] [2024-10-11 05:18:18,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:18,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:19,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:19,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:19,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:19,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:19,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:19,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:19,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:19,429 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:19,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:19,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720589668] [2024-10-11 05:18:19,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720589668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:19,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:19,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:19,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625544843] [2024-10-11 05:18:19,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:19,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:19,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:19,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:19,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:19,436 INFO L87 Difference]: Start difference. First operand 2696 states and 4024 transitions. Second operand has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:19,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:19,744 INFO L93 Difference]: Finished difference Result 4827 states and 7201 transitions. [2024-10-11 05:18:19,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:19,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 676 [2024-10-11 05:18:19,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:19,750 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:19,750 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:19,753 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 [2024-10-11 05:18:19,753 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 7351 mSDsluCounter, 3857 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7358 SdHoareTripleChecker+Valid, 7712 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:19,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7358 Valid, 7712 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 05:18:19,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:19,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:19,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.491998511350949) internal successors, (4009), 2687 states have internal predecessors, (4009), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:19,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4023 transitions. [2024-10-11 05:18:19,786 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4023 transitions. Word has length 676 [2024-10-11 05:18:19,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:19,787 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4023 transitions. [2024-10-11 05:18:19,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:19,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4023 transitions. [2024-10-11 05:18:19,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2024-10-11 05:18:19,792 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:19,792 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:19,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 05:18:19,793 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:19,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:19,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1867920864, now seen corresponding path program 1 times [2024-10-11 05:18:19,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:19,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411635039] [2024-10-11 05:18:19,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:19,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:20,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:20,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:20,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:20,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:20,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:20,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:20,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:20,921 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:20,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:20,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411635039] [2024-10-11 05:18:20,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411635039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:20,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:20,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:20,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71936073] [2024-10-11 05:18:20,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:20,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:20,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:20,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:20,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:20,924 INFO L87 Difference]: Start difference. First operand 2696 states and 4023 transitions. Second operand has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:21,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:21,225 INFO L93 Difference]: Finished difference Result 4827 states and 7199 transitions. [2024-10-11 05:18:21,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:21,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 677 [2024-10-11 05:18:21,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:21,231 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:21,231 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:21,234 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 [2024-10-11 05:18:21,235 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 7337 mSDsluCounter, 3857 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7344 SdHoareTripleChecker+Valid, 7712 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:21,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7344 Valid, 7712 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 05:18:21,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:21,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:21,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.4916263490882025) internal successors, (4008), 2687 states have internal predecessors, (4008), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:21,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4022 transitions. [2024-10-11 05:18:21,268 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4022 transitions. Word has length 677 [2024-10-11 05:18:21,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:21,269 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4022 transitions. [2024-10-11 05:18:21,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:21,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4022 transitions. [2024-10-11 05:18:21,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2024-10-11 05:18:21,274 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:21,275 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:21,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 05:18:21,275 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:21,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:21,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1435186781, now seen corresponding path program 1 times [2024-10-11 05:18:21,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:21,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50100761] [2024-10-11 05:18:21,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:21,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:22,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:22,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:22,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:22,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:22,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:22,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:22,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:22,518 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:22,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:22,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50100761] [2024-10-11 05:18:22,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50100761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:22,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:22,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:22,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799654926] [2024-10-11 05:18:22,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:22,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:22,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:22,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:22,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:22,521 INFO L87 Difference]: Start difference. First operand 2696 states and 4022 transitions. Second operand has 5 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:22,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:22,883 INFO L93 Difference]: Finished difference Result 4827 states and 7197 transitions. [2024-10-11 05:18:22,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:22,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 678 [2024-10-11 05:18:22,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:22,889 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:22,889 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:22,892 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 [2024-10-11 05:18:22,892 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 7329 mSDsluCounter, 3857 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7336 SdHoareTripleChecker+Valid, 7712 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:22,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7336 Valid, 7712 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 05:18:22,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:22,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:22,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.4912541868254559) internal successors, (4007), 2687 states have internal predecessors, (4007), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:22,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4021 transitions. [2024-10-11 05:18:22,930 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4021 transitions. Word has length 678 [2024-10-11 05:18:22,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:22,931 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4021 transitions. [2024-10-11 05:18:22,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:22,932 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4021 transitions. [2024-10-11 05:18:22,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2024-10-11 05:18:22,938 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:22,938 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:22,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 05:18:22,939 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:22,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:22,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1265871943, now seen corresponding path program 1 times [2024-10-11 05:18:22,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:22,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898546769] [2024-10-11 05:18:22,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:22,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:24,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:24,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:24,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:24,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:24,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:24,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:24,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:24,049 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:24,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:24,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898546769] [2024-10-11 05:18:24,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898546769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:24,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:24,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:24,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245101934] [2024-10-11 05:18:24,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:24,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:24,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:24,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:24,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:24,053 INFO L87 Difference]: Start difference. First operand 2696 states and 4021 transitions. Second operand has 5 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:24,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:24,336 INFO L93 Difference]: Finished difference Result 4827 states and 7195 transitions. [2024-10-11 05:18:24,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:24,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 679 [2024-10-11 05:18:24,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:24,342 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:24,342 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:24,345 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 [2024-10-11 05:18:24,346 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 3851 mSDsluCounter, 3867 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3858 SdHoareTripleChecker+Valid, 7722 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:24,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3858 Valid, 7722 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 05:18:24,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:24,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:24,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.4908820245627092) internal successors, (4006), 2687 states have internal predecessors, (4006), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4020 transitions. [2024-10-11 05:18:24,380 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4020 transitions. Word has length 679 [2024-10-11 05:18:24,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:24,381 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4020 transitions. [2024-10-11 05:18:24,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:24,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4020 transitions. [2024-10-11 05:18:24,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2024-10-11 05:18:24,387 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:24,388 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:24,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 05:18:24,388 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:24,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:24,389 INFO L85 PathProgramCache]: Analyzing trace with hash 880676374, now seen corresponding path program 1 times [2024-10-11 05:18:24,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:24,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362919426] [2024-10-11 05:18:24,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:24,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:25,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:25,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:25,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:25,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:25,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:25,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:25,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:25,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:25,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362919426] [2024-10-11 05:18:25,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362919426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:25,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:25,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:25,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235207409] [2024-10-11 05:18:25,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:25,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:25,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:25,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:25,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:25,479 INFO L87 Difference]: Start difference. First operand 2696 states and 4020 transitions. Second operand has 5 states, 5 states have (on average 129.6) internal successors, (648), 5 states have internal predecessors, (648), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:25,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:18:25,844 INFO L93 Difference]: Finished difference Result 4827 states and 7193 transitions. [2024-10-11 05:18:25,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:18:25,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 129.6) internal successors, (648), 5 states have internal predecessors, (648), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 680 [2024-10-11 05:18:25,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:18:25,853 INFO L225 Difference]: With dead ends: 4827 [2024-10-11 05:18:25,853 INFO L226 Difference]: Without dead ends: 2696 [2024-10-11 05:18:25,856 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 [2024-10-11 05:18:25,856 INFO L432 NwaCegarLoop]: 3855 mSDtfsCounter, 7313 mSDsluCounter, 3857 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7320 SdHoareTripleChecker+Valid, 7712 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 05:18:25,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7320 Valid, 7712 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 05:18:25,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-10-11 05:18:25,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2696. [2024-10-11 05:18:25,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2687 states have (on average 1.4905098622999629) internal successors, (4005), 2687 states have internal predecessors, (4005), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 05:18:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4019 transitions. [2024-10-11 05:18:25,895 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4019 transitions. Word has length 680 [2024-10-11 05:18:25,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:18:25,896 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 4019 transitions. [2024-10-11 05:18:25,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.6) internal successors, (648), 5 states have internal predecessors, (648), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-11 05:18:25,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4019 transitions. [2024-10-11 05:18:25,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2024-10-11 05:18:25,902 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:18:25,902 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:18:25,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 05:18:25,903 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:18:25,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:18:25,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1313700398, now seen corresponding path program 1 times [2024-10-11 05:18:25,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:18:25,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264680877] [2024-10-11 05:18:25,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:18:25,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:18:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:27,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-10-11 05:18:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:27,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-11 05:18:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:27,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-11 05:18:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:27,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-11 05:18:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:27,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-11 05:18:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:27,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-11 05:18:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:27,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-11 05:18:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:18:27,527 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 05:18:27,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:18:27,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264680877] [2024-10-11 05:18:27,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264680877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:18:27,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:18:27,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:18:27,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875002261] [2024-10-11 05:18:27,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:18:27,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:18:27,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:18:27,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:18:27,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:18:27,529 INFO L87 Difference]: Start difference. First operand 2696 states and 4019 transitions. Second operand has 5 states, 5 states have (on average 129.8) internal successors, (649), 5 states have internal predecessors, (649), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)