./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w16_d16_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w16_d16_e0.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f4e16e32f5a5bd06d31ed1d8c57b5f9f474c751f2ca1035bc3e8f6ab1a9dc6cd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:34:51,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:34:51,983 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 16:34:51,987 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:34:51,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:34:52,012 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:34:52,013 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:34:52,013 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:34:52,014 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:34:52,014 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:34:52,015 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:34:52,015 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:34:52,016 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:34:52,017 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:34:52,017 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:34:52,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:34:52,018 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:34:52,018 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:34:52,021 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:34:52,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:34:52,021 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:34:52,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:34:52,022 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:34:52,022 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:34:52,022 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:34:52,022 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:34:52,022 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:34:52,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:34:52,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:34:52,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:34:52,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:34:52,023 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:34:52,023 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:34:52,024 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:34:52,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:34:52,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:34:52,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:34:52,024 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:34:52,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:34:52,024 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e16e32f5a5bd06d31ed1d8c57b5f9f474c751f2ca1035bc3e8f6ab1a9dc6cd [2024-11-18 16:34:52,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:34:52,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:34:52,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:34:52,253 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:34:52,254 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:34:52,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w16_d16_e0.c [2024-11-18 16:34:53,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:34:53,758 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:34:53,758 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w16_d16_e0.c [2024-11-18 16:34:53,774 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c71d1cd7f/d1f3c011c8f045e7be3b3328e5f5047e/FLAG3ad457ecb [2024-11-18 16:34:53,786 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c71d1cd7f/d1f3c011c8f045e7be3b3328e5f5047e [2024-11-18 16:34:53,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:34:53,789 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:34:53,791 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:34:53,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:34:53,810 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:34:53,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:34:53" (1/1) ... [2024-11-18 16:34:53,812 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@631479b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:53, skipping insertion in model container [2024-11-18 16:34:53,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:34:53" (1/1) ... [2024-11-18 16:34:53,856 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:34:54,034 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w16_d16_e0.c[1271,1284] [2024-11-18 16:34:54,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:34:54,454 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:34:54,486 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w16_d16_e0.c[1271,1284] [2024-11-18 16:34:54,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:34:54,689 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:34:54,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54 WrapperNode [2024-11-18 16:34:54,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:34:54,690 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:34:54,690 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:34:54,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:34:54,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54" (1/1) ... [2024-11-18 16:34:54,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54" (1/1) ... [2024-11-18 16:34:55,397 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 7412 [2024-11-18 16:34:55,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:34:55,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:34:55,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:34:55,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:34:55,407 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54" (1/1) ... [2024-11-18 16:34:55,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54" (1/1) ... [2024-11-18 16:34:55,586 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54" (1/1) ... [2024-11-18 16:34:55,777 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 16:34:55,777 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54" (1/1) ... [2024-11-18 16:34:55,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54" (1/1) ... [2024-11-18 16:34:55,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54" (1/1) ... [2024-11-18 16:34:56,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54" (1/1) ... [2024-11-18 16:34:56,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54" (1/1) ... [2024-11-18 16:34:56,077 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54" (1/1) ... [2024-11-18 16:34:56,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:34:56,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:34:56,201 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:34:56,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:34:56,202 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54" (1/1) ... [2024-11-18 16:34:56,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:34:56,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:34:56,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 16:34:56,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 16:34:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:34:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 16:34:56,259 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 16:34:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:34:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:34:56,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:34:56,633 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:34:56,635 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:35:02,854 INFO L? ?]: Removed 4187 outVars from TransFormulas that were not future-live. [2024-11-18 16:35:02,855 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:35:02,891 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:35:02,891 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 16:35:02,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:35:02 BoogieIcfgContainer [2024-11-18 16:35:02,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:35:02,893 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:35:02,893 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:35:02,895 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:35:02,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:34:53" (1/3) ... [2024-11-18 16:35:02,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9f9f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:35:02, skipping insertion in model container [2024-11-18 16:35:02,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:54" (2/3) ... [2024-11-18 16:35:02,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9f9f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:35:02, skipping insertion in model container [2024-11-18 16:35:02,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:35:02" (3/3) ... [2024-11-18 16:35:02,901 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n4_w16_d16_e0.c [2024-11-18 16:35:02,913 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:35:02,914 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 16:35:02,990 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:35:02,997 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;@568a278c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:35:02,997 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 16:35:03,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 2180 states, 2164 states have (on average 1.4963031423290203) internal successors, (3238), 2165 states have internal predecessors, (3238), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:03,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-18 16:35:03,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:03,048 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:03,048 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:03,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:03,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2114890901, now seen corresponding path program 1 times [2024-11-18 16:35:03,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:03,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393409646] [2024-11-18 16:35:03,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:03,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:05,987 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:05,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:05,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393409646] [2024-11-18 16:35:05,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393409646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:05,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:05,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:35:05,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971776520] [2024-11-18 16:35:05,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:05,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:35:05,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:06,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:35:06,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:35:06,023 INFO L87 Difference]: Start difference. First operand has 2180 states, 2164 states have (on average 1.4963031423290203) internal successors, (3238), 2165 states have internal predecessors, (3238), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 4 states, 4 states have (on average 160.25) internal successors, (641), 4 states have internal predecessors, (641), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:06,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:06,161 INFO L93 Difference]: Finished difference Result 4017 states and 6030 transitions. [2024-11-18 16:35:06,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:06,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 160.25) internal successors, (641), 4 states have internal predecessors, (641), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 703 [2024-11-18 16:35:06,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:06,186 INFO L225 Difference]: With dead ends: 4017 [2024-11-18 16:35:06,186 INFO L226 Difference]: Without dead ends: 2179 [2024-11-18 16:35:06,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:35:06,194 INFO L432 NwaCegarLoop]: 3257 mSDtfsCounter, 0 mSDsluCounter, 6508 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9765 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:06,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9765 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:35:06,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2024-11-18 16:35:06,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 2179. [2024-11-18 16:35:06,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 2164 states have (on average 1.494916820702403) internal successors, (3235), 2164 states have internal predecessors, (3235), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:06,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 3261 transitions. [2024-11-18 16:35:06,284 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 3261 transitions. Word has length 703 [2024-11-18 16:35:06,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:06,287 INFO L471 AbstractCegarLoop]: Abstraction has 2179 states and 3261 transitions. [2024-11-18 16:35:06,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 160.25) internal successors, (641), 4 states have internal predecessors, (641), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:06,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 3261 transitions. [2024-11-18 16:35:06,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2024-11-18 16:35:06,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:06,297 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:06,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:35:06,298 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:06,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:06,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1138807700, now seen corresponding path program 1 times [2024-11-18 16:35:06,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:06,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4192559] [2024-11-18 16:35:06,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:06,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:07,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:07,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4192559] [2024-11-18 16:35:07,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4192559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:07,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:07,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:07,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916913307] [2024-11-18 16:35:07,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:07,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:07,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:07,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:07,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:07,658 INFO L87 Difference]: Start difference. First operand 2179 states and 3261 transitions. Second operand has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:35:08,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:08,856 INFO L93 Difference]: Finished difference Result 5569 states and 8338 transitions. [2024-11-18 16:35:08,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:35:08,857 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), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 704 [2024-11-18 16:35:08,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:08,866 INFO L225 Difference]: With dead ends: 5569 [2024-11-18 16:35:08,866 INFO L226 Difference]: Without dead ends: 2179 [2024-11-18 16:35:08,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:35:08,872 INFO L432 NwaCegarLoop]: 3248 mSDtfsCounter, 6777 mSDsluCounter, 5807 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6785 SdHoareTripleChecker+Valid, 9055 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:08,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6785 Valid, 9055 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 16:35:08,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2024-11-18 16:35:08,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 2179. [2024-11-18 16:35:08,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 2164 states have (on average 1.4944547134935304) internal successors, (3234), 2164 states have internal predecessors, (3234), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:08,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 3260 transitions. [2024-11-18 16:35:08,907 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 3260 transitions. Word has length 704 [2024-11-18 16:35:08,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:08,907 INFO L471 AbstractCegarLoop]: Abstraction has 2179 states and 3260 transitions. [2024-11-18 16:35:08,908 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), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:35:08,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 3260 transitions. [2024-11-18 16:35:08,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-18 16:35:08,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:08,920 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:08,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:35:08,920 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:08,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:08,921 INFO L85 PathProgramCache]: Analyzing trace with hash -6258157, now seen corresponding path program 1 times [2024-11-18 16:35:08,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:08,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029921841] [2024-11-18 16:35:08,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:08,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:10,213 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:10,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:10,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029921841] [2024-11-18 16:35:10,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029921841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:10,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:10,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:10,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308759585] [2024-11-18 16:35:10,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:10,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:10,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:10,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:10,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:10,218 INFO L87 Difference]: Start difference. First operand 2179 states and 3260 transitions. Second operand has 5 states, 5 states have (on average 128.6) internal successors, (643), 5 states have internal predecessors, (643), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:35:11,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:11,258 INFO L93 Difference]: Finished difference Result 4016 states and 6008 transitions. [2024-11-18 16:35:11,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:11,260 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), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 705 [2024-11-18 16:35:11,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:11,267 INFO L225 Difference]: With dead ends: 4016 [2024-11-18 16:35:11,267 INFO L226 Difference]: Without dead ends: 2179 [2024-11-18 16:35:11,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:11,274 INFO L432 NwaCegarLoop]: 2529 mSDtfsCounter, 6058 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6063 SdHoareTripleChecker+Valid, 5060 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:11,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6063 Valid, 5060 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 16:35:11,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2024-11-18 16:35:11,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 2179. [2024-11-18 16:35:11,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 2164 states have (on average 1.493992606284658) internal successors, (3233), 2164 states have internal predecessors, (3233), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:11,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 3259 transitions. [2024-11-18 16:35:11,321 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 3259 transitions. Word has length 705 [2024-11-18 16:35:11,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:11,323 INFO L471 AbstractCegarLoop]: Abstraction has 2179 states and 3259 transitions. [2024-11-18 16:35:11,323 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), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:35:11,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 3259 transitions. [2024-11-18 16:35:11,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2024-11-18 16:35:11,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:11,334 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:11,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 16:35:11,335 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:11,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:11,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1879211441, now seen corresponding path program 1 times [2024-11-18 16:35:11,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:11,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086083048] [2024-11-18 16:35:11,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:11,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:12,645 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:12,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:12,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086083048] [2024-11-18 16:35:12,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086083048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:12,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:12,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:12,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596304510] [2024-11-18 16:35:12,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:12,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:12,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:12,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:12,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:12,649 INFO L87 Difference]: Start difference. First operand 2179 states and 3259 transitions. Second operand has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:35:13,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:13,545 INFO L93 Difference]: Finished difference Result 4016 states and 6006 transitions. [2024-11-18 16:35:13,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:13,546 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), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 706 [2024-11-18 16:35:13,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:13,553 INFO L225 Difference]: With dead ends: 4016 [2024-11-18 16:35:13,553 INFO L226 Difference]: Without dead ends: 2179 [2024-11-18 16:35:13,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:13,557 INFO L432 NwaCegarLoop]: 2529 mSDtfsCounter, 5898 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5903 SdHoareTripleChecker+Valid, 5060 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:13,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5903 Valid, 5060 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 16:35:13,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2024-11-18 16:35:13,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 2179. [2024-11-18 16:35:13,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 2164 states have (on average 1.4935304990757856) internal successors, (3232), 2164 states have internal predecessors, (3232), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:13,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 3258 transitions. [2024-11-18 16:35:13,589 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 3258 transitions. Word has length 706 [2024-11-18 16:35:13,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:13,590 INFO L471 AbstractCegarLoop]: Abstraction has 2179 states and 3258 transitions. [2024-11-18 16:35:13,590 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), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:35:13,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 3258 transitions. [2024-11-18 16:35:13,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2024-11-18 16:35:13,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:13,595 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:13,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 16:35:13,596 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:13,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:13,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1810935108, now seen corresponding path program 1 times [2024-11-18 16:35:13,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:13,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572925288] [2024-11-18 16:35:13,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:13,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:14,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:14,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572925288] [2024-11-18 16:35:14,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572925288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:14,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:14,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:14,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470945281] [2024-11-18 16:35:14,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:14,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:14,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:14,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:14,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:14,605 INFO L87 Difference]: Start difference. First operand 2179 states and 3258 transitions. Second operand has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:35:15,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:15,363 INFO L93 Difference]: Finished difference Result 4016 states and 6004 transitions. [2024-11-18 16:35:15,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:15,364 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), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 707 [2024-11-18 16:35:15,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:15,371 INFO L225 Difference]: With dead ends: 4016 [2024-11-18 16:35:15,371 INFO L226 Difference]: Without dead ends: 2179 [2024-11-18 16:35:15,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:15,374 INFO L432 NwaCegarLoop]: 2529 mSDtfsCounter, 2982 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2987 SdHoareTripleChecker+Valid, 5077 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:15,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2987 Valid, 5077 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:35:15,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2024-11-18 16:35:15,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 2179. [2024-11-18 16:35:15,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 2164 states have (on average 1.4930683918669132) internal successors, (3231), 2164 states have internal predecessors, (3231), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:15,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 3257 transitions. [2024-11-18 16:35:15,402 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 3257 transitions. Word has length 707 [2024-11-18 16:35:15,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:15,402 INFO L471 AbstractCegarLoop]: Abstraction has 2179 states and 3257 transitions. [2024-11-18 16:35:15,403 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), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:35:15,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 3257 transitions. [2024-11-18 16:35:15,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2024-11-18 16:35:15,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:15,408 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:15,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 16:35:15,408 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:15,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:15,409 INFO L85 PathProgramCache]: Analyzing trace with hash -379853216, now seen corresponding path program 1 times [2024-11-18 16:35:15,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:15,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587246586] [2024-11-18 16:35:15,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:15,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:16,436 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:16,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:16,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587246586] [2024-11-18 16:35:16,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587246586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:16,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:16,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:16,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187860513] [2024-11-18 16:35:16,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:16,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:16,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:16,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:16,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:16,441 INFO L87 Difference]: Start difference. First operand 2179 states and 3257 transitions. Second operand has 5 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:35:17,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:17,239 INFO L93 Difference]: Finished difference Result 4016 states and 6002 transitions. [2024-11-18 16:35:17,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:17,240 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), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 708 [2024-11-18 16:35:17,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:17,248 INFO L225 Difference]: With dead ends: 4016 [2024-11-18 16:35:17,249 INFO L226 Difference]: Without dead ends: 2179 [2024-11-18 16:35:17,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:17,254 INFO L432 NwaCegarLoop]: 2529 mSDtfsCounter, 2902 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 5077 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:17,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2907 Valid, 5077 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:35:17,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2024-11-18 16:35:17,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 2179. [2024-11-18 16:35:17,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 2164 states have (on average 1.4926062846580406) internal successors, (3230), 2164 states have internal predecessors, (3230), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:17,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 3256 transitions. [2024-11-18 16:35:17,283 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 3256 transitions. Word has length 708 [2024-11-18 16:35:17,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:17,286 INFO L471 AbstractCegarLoop]: Abstraction has 2179 states and 3256 transitions. [2024-11-18 16:35:17,286 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), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:35:17,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 3256 transitions. [2024-11-18 16:35:17,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2024-11-18 16:35:17,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:17,291 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:17,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 16:35:17,291 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:17,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:17,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1426995211, now seen corresponding path program 1 times [2024-11-18 16:35:17,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:17,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943733553] [2024-11-18 16:35:17,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:17,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:18,315 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:18,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:18,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943733553] [2024-11-18 16:35:18,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943733553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:18,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:18,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:35:18,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156288360] [2024-11-18 16:35:18,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:18,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:35:18,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:18,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:35:18,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:35:18,324 INFO L87 Difference]: Start difference. First operand 2179 states and 3256 transitions. Second operand has 4 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:18,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:18,370 INFO L93 Difference]: Finished difference Result 4018 states and 6003 transitions. [2024-11-18 16:35:18,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:18,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 709 [2024-11-18 16:35:18,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:18,377 INFO L225 Difference]: With dead ends: 4018 [2024-11-18 16:35:18,377 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:18,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:35:18,380 INFO L432 NwaCegarLoop]: 3252 mSDtfsCounter, 0 mSDsluCounter, 6494 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9746 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:18,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9746 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:35:18,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:18,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:18,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.492151431209603) internal successors, (3232), 2166 states have internal predecessors, (3232), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:18,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3258 transitions. [2024-11-18 16:35:18,406 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3258 transitions. Word has length 709 [2024-11-18 16:35:18,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:18,407 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3258 transitions. [2024-11-18 16:35:18,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:18,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3258 transitions. [2024-11-18 16:35:18,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2024-11-18 16:35:18,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:18,412 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:18,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 16:35:18,412 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:18,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:18,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1909826829, now seen corresponding path program 1 times [2024-11-18 16:35:18,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:18,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272436028] [2024-11-18 16:35:18,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:18,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:19,665 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:19,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:19,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272436028] [2024-11-18 16:35:19,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272436028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:19,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:19,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:35:19,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087939467] [2024-11-18 16:35:19,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:19,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:35:19,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:19,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:35:19,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:35:19,668 INFO L87 Difference]: Start difference. First operand 2181 states and 3258 transitions. Second operand has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:19,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:19,961 INFO L93 Difference]: Finished difference Result 4020 states and 6004 transitions. [2024-11-18 16:35:19,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:19,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 710 [2024-11-18 16:35:19,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:19,968 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:19,968 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:19,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:19,971 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 2743 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:19,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2743 Valid, 6134 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:35:19,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:19,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:19,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4916897506925209) internal successors, (3231), 2166 states have internal predecessors, (3231), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:20,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3257 transitions. [2024-11-18 16:35:20,002 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3257 transitions. Word has length 710 [2024-11-18 16:35:20,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:20,003 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3257 transitions. [2024-11-18 16:35:20,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:20,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3257 transitions. [2024-11-18 16:35:20,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2024-11-18 16:35:20,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:20,083 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:20,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 16:35:20,084 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:20,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:20,086 INFO L85 PathProgramCache]: Analyzing trace with hash 497659931, now seen corresponding path program 1 times [2024-11-18 16:35:20,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:20,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886641716] [2024-11-18 16:35:20,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:20,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:21,338 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:21,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:21,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886641716] [2024-11-18 16:35:21,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886641716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:21,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:21,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:21,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214495415] [2024-11-18 16:35:21,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:21,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:21,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:21,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:21,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:21,342 INFO L87 Difference]: Start difference. First operand 2181 states and 3257 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:21,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:21,626 INFO L93 Difference]: Finished difference Result 4318 states and 6446 transitions. [2024-11-18 16:35:21,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:35:21,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 129.8) internal successors, (649), 5 states have internal predecessors, (649), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 711 [2024-11-18 16:35:21,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:21,633 INFO L225 Difference]: With dead ends: 4318 [2024-11-18 16:35:21,633 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:21,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:35:21,636 INFO L432 NwaCegarLoop]: 3228 mSDtfsCounter, 3606 mSDsluCounter, 6308 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3606 SdHoareTripleChecker+Valid, 9536 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:21,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3606 Valid, 9536 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:35:21,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:21,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:21,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4912280701754386) internal successors, (3230), 2166 states have internal predecessors, (3230), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:21,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3256 transitions. [2024-11-18 16:35:21,668 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3256 transitions. Word has length 711 [2024-11-18 16:35:21,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:21,669 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3256 transitions. [2024-11-18 16:35:21,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.8) internal successors, (649), 5 states have internal predecessors, (649), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:21,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3256 transitions. [2024-11-18 16:35:21,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2024-11-18 16:35:21,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:21,677 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:21,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 16:35:21,678 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:21,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:21,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1311735234, now seen corresponding path program 1 times [2024-11-18 16:35:21,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:21,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530289066] [2024-11-18 16:35:21,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:21,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:22,532 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:22,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:22,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530289066] [2024-11-18 16:35:22,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530289066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:22,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:22,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:22,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329088673] [2024-11-18 16:35:22,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:22,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:22,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:22,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:22,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:22,535 INFO L87 Difference]: Start difference. First operand 2181 states and 3256 transitions. Second operand has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:22,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:22,832 INFO L93 Difference]: Finished difference Result 4020 states and 6000 transitions. [2024-11-18 16:35:22,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:22,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 712 [2024-11-18 16:35:22,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:22,840 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:22,840 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:22,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:22,843 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 3220 mSDsluCounter, 3085 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3233 SdHoareTripleChecker+Valid, 6151 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:22,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3233 Valid, 6151 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:35:22,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:22,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:22,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4907663896583565) internal successors, (3229), 2166 states have internal predecessors, (3229), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3255 transitions. [2024-11-18 16:35:22,868 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3255 transitions. Word has length 712 [2024-11-18 16:35:22,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:22,868 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3255 transitions. [2024-11-18 16:35:22,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:22,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3255 transitions. [2024-11-18 16:35:22,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2024-11-18 16:35:22,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:22,873 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:22,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 16:35:22,873 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:22,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:22,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1991933172, now seen corresponding path program 1 times [2024-11-18 16:35:22,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:22,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720702144] [2024-11-18 16:35:22,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:22,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:23,741 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:23,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:23,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720702144] [2024-11-18 16:35:23,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720702144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:23,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:23,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:23,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375567959] [2024-11-18 16:35:23,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:23,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:23,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:23,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:23,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:23,744 INFO L87 Difference]: Start difference. First operand 2181 states and 3255 transitions. Second operand has 5 states, 5 states have (on average 130.2) internal successors, (651), 5 states have internal predecessors, (651), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:24,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:24,054 INFO L93 Difference]: Finished difference Result 4020 states and 5998 transitions. [2024-11-18 16:35:24,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:24,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 130.2) internal successors, (651), 5 states have internal predecessors, (651), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 713 [2024-11-18 16:35:24,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:24,061 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:24,061 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:24,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:24,064 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 6112 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6125 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:24,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6125 Valid, 6134 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:35:24,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:24,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:24,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4903047091412742) internal successors, (3228), 2166 states have internal predecessors, (3228), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:24,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3254 transitions. [2024-11-18 16:35:24,089 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3254 transitions. Word has length 713 [2024-11-18 16:35:24,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:24,090 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3254 transitions. [2024-11-18 16:35:24,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.2) internal successors, (651), 5 states have internal predecessors, (651), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:24,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3254 transitions. [2024-11-18 16:35:24,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2024-11-18 16:35:24,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:24,098 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:24,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 16:35:24,098 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:24,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:24,098 INFO L85 PathProgramCache]: Analyzing trace with hash -326228421, now seen corresponding path program 1 times [2024-11-18 16:35:24,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:24,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779310361] [2024-11-18 16:35:24,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:24,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:24,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:24,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779310361] [2024-11-18 16:35:24,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779310361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:24,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:24,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:24,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661217076] [2024-11-18 16:35:24,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:24,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:24,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:24,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:24,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:24,897 INFO L87 Difference]: Start difference. First operand 2181 states and 3254 transitions. Second operand has 5 states, 5 states have (on average 130.4) internal successors, (652), 5 states have internal predecessors, (652), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:25,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:25,168 INFO L93 Difference]: Finished difference Result 4020 states and 5996 transitions. [2024-11-18 16:35:25,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:25,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 130.4) internal successors, (652), 5 states have internal predecessors, (652), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 714 [2024-11-18 16:35:25,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:25,175 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:25,179 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:25,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:25,181 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 6104 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6117 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:25,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6117 Valid, 6134 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:35:25,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:25,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:25,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4898430286241922) internal successors, (3227), 2166 states have internal predecessors, (3227), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:25,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3253 transitions. [2024-11-18 16:35:25,206 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3253 transitions. Word has length 714 [2024-11-18 16:35:25,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:25,206 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3253 transitions. [2024-11-18 16:35:25,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.4) internal successors, (652), 5 states have internal predecessors, (652), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:25,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3253 transitions. [2024-11-18 16:35:25,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 716 [2024-11-18 16:35:25,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:25,211 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:25,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 16:35:25,211 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:25,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:25,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1858362803, now seen corresponding path program 1 times [2024-11-18 16:35:25,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:25,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699356415] [2024-11-18 16:35:25,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:25,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:26,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:26,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699356415] [2024-11-18 16:35:26,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699356415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:26,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:26,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:26,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967703059] [2024-11-18 16:35:26,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:26,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:26,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:26,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:26,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:26,080 INFO L87 Difference]: Start difference. First operand 2181 states and 3253 transitions. Second operand has 5 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:26,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:26,306 INFO L93 Difference]: Finished difference Result 4020 states and 5994 transitions. [2024-11-18 16:35:26,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:26,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 715 [2024-11-18 16:35:26,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:26,314 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:26,316 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:26,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:26,319 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 5954 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5967 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:26,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5967 Valid, 6134 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:35:26,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:26,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:26,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4893813481071099) internal successors, (3226), 2166 states have internal predecessors, (3226), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:26,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3252 transitions. [2024-11-18 16:35:26,354 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3252 transitions. Word has length 715 [2024-11-18 16:35:26,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:26,355 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3252 transitions. [2024-11-18 16:35:26,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:26,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3252 transitions. [2024-11-18 16:35:26,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2024-11-18 16:35:26,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:26,359 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:26,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 16:35:26,360 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:26,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:26,360 INFO L85 PathProgramCache]: Analyzing trace with hash 661880649, now seen corresponding path program 1 times [2024-11-18 16:35:26,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:26,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522418656] [2024-11-18 16:35:26,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:26,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:27,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:27,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522418656] [2024-11-18 16:35:27,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522418656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:27,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:27,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:27,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662586336] [2024-11-18 16:35:27,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:27,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:27,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:27,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:27,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:27,160 INFO L87 Difference]: Start difference. First operand 2181 states and 3252 transitions. Second operand has 5 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:27,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:27,453 INFO L93 Difference]: Finished difference Result 4020 states and 5992 transitions. [2024-11-18 16:35:27,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:27,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 716 [2024-11-18 16:35:27,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:27,459 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:27,459 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:27,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:27,461 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 3133 mSDsluCounter, 3085 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3146 SdHoareTripleChecker+Valid, 6151 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:27,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3146 Valid, 6151 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:35:27,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:27,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:27,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4889196675900278) internal successors, (3225), 2166 states have internal predecessors, (3225), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:27,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3251 transitions. [2024-11-18 16:35:27,484 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3251 transitions. Word has length 716 [2024-11-18 16:35:27,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:27,485 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3251 transitions. [2024-11-18 16:35:27,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:27,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3251 transitions. [2024-11-18 16:35:27,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2024-11-18 16:35:27,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:27,490 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:27,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 16:35:27,490 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:27,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:27,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1214844660, now seen corresponding path program 1 times [2024-11-18 16:35:27,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:27,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576436567] [2024-11-18 16:35:27,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:27,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:28,283 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:28,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:28,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576436567] [2024-11-18 16:35:28,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576436567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:28,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:28,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:28,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787309492] [2024-11-18 16:35:28,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:28,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:28,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:28,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:28,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:28,286 INFO L87 Difference]: Start difference. First operand 2181 states and 3251 transitions. Second operand has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:28,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:28,577 INFO L93 Difference]: Finished difference Result 4020 states and 5990 transitions. [2024-11-18 16:35:28,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:28,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 717 [2024-11-18 16:35:28,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:28,581 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:28,581 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:28,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:28,583 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 5938 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5951 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:28,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5951 Valid, 6134 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:35:28,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:28,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:28,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4884579870729455) internal successors, (3224), 2166 states have internal predecessors, (3224), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:28,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3250 transitions. [2024-11-18 16:35:28,605 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3250 transitions. Word has length 717 [2024-11-18 16:35:28,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:28,605 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3250 transitions. [2024-11-18 16:35:28,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:28,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3250 transitions. [2024-11-18 16:35:28,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2024-11-18 16:35:28,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:28,609 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:28,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 16:35:28,610 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:28,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:28,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1659264912, now seen corresponding path program 1 times [2024-11-18 16:35:28,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:28,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788670295] [2024-11-18 16:35:28,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:28,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:29,506 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:29,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:29,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788670295] [2024-11-18 16:35:29,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788670295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:29,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:29,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:29,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509649721] [2024-11-18 16:35:29,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:29,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:29,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:29,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:29,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:29,510 INFO L87 Difference]: Start difference. First operand 2181 states and 3250 transitions. Second operand has 5 states, 5 states have (on average 131.2) internal successors, (656), 5 states have internal predecessors, (656), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:29,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:29,815 INFO L93 Difference]: Finished difference Result 4020 states and 5988 transitions. [2024-11-18 16:35:29,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:29,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 131.2) internal successors, (656), 5 states have internal predecessors, (656), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 718 [2024-11-18 16:35:29,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:29,819 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:29,819 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:29,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:29,822 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 3125 mSDsluCounter, 3085 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3138 SdHoareTripleChecker+Valid, 6151 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:29,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3138 Valid, 6151 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:35:29,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:29,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:29,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4879963065558632) internal successors, (3223), 2166 states have internal predecessors, (3223), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:29,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3249 transitions. [2024-11-18 16:35:29,846 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3249 transitions. Word has length 718 [2024-11-18 16:35:29,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:29,847 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3249 transitions. [2024-11-18 16:35:29,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 131.2) internal successors, (656), 5 states have internal predecessors, (656), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:29,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3249 transitions. [2024-11-18 16:35:29,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 720 [2024-11-18 16:35:29,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:29,852 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:29,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 16:35:29,852 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:29,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:29,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1108319003, now seen corresponding path program 1 times [2024-11-18 16:35:29,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:29,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93877739] [2024-11-18 16:35:29,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:29,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:30,668 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:30,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:30,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93877739] [2024-11-18 16:35:30,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93877739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:30,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:30,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:30,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902275541] [2024-11-18 16:35:30,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:30,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:30,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:30,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:30,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:30,670 INFO L87 Difference]: Start difference. First operand 2181 states and 3249 transitions. Second operand has 5 states, 5 states have (on average 131.4) internal successors, (657), 5 states have internal predecessors, (657), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:30,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:30,896 INFO L93 Difference]: Finished difference Result 4020 states and 5986 transitions. [2024-11-18 16:35:30,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:30,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 131.4) internal successors, (657), 5 states have internal predecessors, (657), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 719 [2024-11-18 16:35:30,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:30,900 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:30,900 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:30,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:30,902 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 5780 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5793 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:30,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5793 Valid, 6134 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:35:30,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:30,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:30,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4875346260387812) internal successors, (3222), 2166 states have internal predecessors, (3222), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:30,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3248 transitions. [2024-11-18 16:35:30,921 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3248 transitions. Word has length 719 [2024-11-18 16:35:30,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:30,921 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3248 transitions. [2024-11-18 16:35:30,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 131.4) internal successors, (657), 5 states have internal predecessors, (657), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:30,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3248 transitions. [2024-11-18 16:35:30,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 721 [2024-11-18 16:35:30,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:30,926 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:30,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 16:35:30,926 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:30,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:30,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1246001182, now seen corresponding path program 1 times [2024-11-18 16:35:30,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:30,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962594827] [2024-11-18 16:35:30,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:30,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:31,955 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:31,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:31,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962594827] [2024-11-18 16:35:31,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962594827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:31,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:31,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:31,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437876905] [2024-11-18 16:35:31,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:31,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:31,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:31,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:31,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:31,958 INFO L87 Difference]: Start difference. First operand 2181 states and 3248 transitions. Second operand has 5 states, 5 states have (on average 131.6) internal successors, (658), 5 states have internal predecessors, (658), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:32,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:32,223 INFO L93 Difference]: Finished difference Result 4020 states and 5984 transitions. [2024-11-18 16:35:32,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:32,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 131.6) internal successors, (658), 5 states have internal predecessors, (658), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 720 [2024-11-18 16:35:32,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:32,227 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:32,227 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:32,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:32,229 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 5772 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5785 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:32,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5785 Valid, 6134 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:35:32,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:32,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:32,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4870729455216989) internal successors, (3221), 2166 states have internal predecessors, (3221), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:32,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3247 transitions. [2024-11-18 16:35:32,259 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3247 transitions. Word has length 720 [2024-11-18 16:35:32,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:32,260 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3247 transitions. [2024-11-18 16:35:32,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 131.6) internal successors, (658), 5 states have internal predecessors, (658), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:32,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3247 transitions. [2024-11-18 16:35:32,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 722 [2024-11-18 16:35:32,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:32,268 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:32,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 16:35:32,268 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:32,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:32,269 INFO L85 PathProgramCache]: Analyzing trace with hash -982522444, now seen corresponding path program 1 times [2024-11-18 16:35:32,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:32,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235861926] [2024-11-18 16:35:32,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:32,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:33,142 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:33,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:33,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235861926] [2024-11-18 16:35:33,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235861926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:33,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:33,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:33,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696767340] [2024-11-18 16:35:33,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:33,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:33,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:33,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:33,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:33,145 INFO L87 Difference]: Start difference. First operand 2181 states and 3247 transitions. Second operand has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:33,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:33,367 INFO L93 Difference]: Finished difference Result 4020 states and 5982 transitions. [2024-11-18 16:35:33,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:33,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 721 [2024-11-18 16:35:33,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:33,371 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:33,371 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:33,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:33,373 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 3042 mSDsluCounter, 3085 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3055 SdHoareTripleChecker+Valid, 6151 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:33,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3055 Valid, 6151 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:35:33,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:33,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:33,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4866112650046168) internal successors, (3220), 2166 states have internal predecessors, (3220), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:33,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3246 transitions. [2024-11-18 16:35:33,393 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3246 transitions. Word has length 721 [2024-11-18 16:35:33,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:33,393 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3246 transitions. [2024-11-18 16:35:33,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:33,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3246 transitions. [2024-11-18 16:35:33,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2024-11-18 16:35:33,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:33,398 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:33,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 16:35:33,399 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:33,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:33,399 INFO L85 PathProgramCache]: Analyzing trace with hash 745344539, now seen corresponding path program 1 times [2024-11-18 16:35:33,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:33,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902788093] [2024-11-18 16:35:33,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:33,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:34,227 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:34,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:34,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902788093] [2024-11-18 16:35:34,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902788093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:34,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:34,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:34,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518382214] [2024-11-18 16:35:34,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:34,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:34,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:34,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:34,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:34,230 INFO L87 Difference]: Start difference. First operand 2181 states and 3246 transitions. Second operand has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:34,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:34,517 INFO L93 Difference]: Finished difference Result 4020 states and 5980 transitions. [2024-11-18 16:35:34,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:34,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 722 [2024-11-18 16:35:34,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:34,521 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:34,521 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:34,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:34,523 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 5608 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5621 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:34,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5621 Valid, 6134 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:35:34,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:34,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:34,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4861495844875345) internal successors, (3219), 2166 states have internal predecessors, (3219), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:34,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3245 transitions. [2024-11-18 16:35:34,542 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3245 transitions. Word has length 722 [2024-11-18 16:35:34,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:34,542 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3245 transitions. [2024-11-18 16:35:34,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:34,543 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3245 transitions. [2024-11-18 16:35:34,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 724 [2024-11-18 16:35:34,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:34,547 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:34,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 16:35:34,547 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:34,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:34,548 INFO L85 PathProgramCache]: Analyzing trace with hash 526242751, now seen corresponding path program 1 times [2024-11-18 16:35:34,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:34,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989139574] [2024-11-18 16:35:34,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:34,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:35,383 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:35,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:35,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989139574] [2024-11-18 16:35:35,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989139574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:35,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:35,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:35,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696468920] [2024-11-18 16:35:35,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:35,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:35,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:35,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:35,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:35,386 INFO L87 Difference]: Start difference. First operand 2181 states and 3245 transitions. Second operand has 5 states, 5 states have (on average 132.2) internal successors, (661), 5 states have internal predecessors, (661), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:35,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:35,613 INFO L93 Difference]: Finished difference Result 4020 states and 5978 transitions. [2024-11-18 16:35:35,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:35,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 132.2) internal successors, (661), 5 states have internal predecessors, (661), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 723 [2024-11-18 16:35:35,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:35,617 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:35,617 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:35,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:35,619 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 5600 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5613 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:35,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5613 Valid, 6134 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:35:35,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:35,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:35,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4856879039704525) internal successors, (3218), 2166 states have internal predecessors, (3218), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:35,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3244 transitions. [2024-11-18 16:35:35,639 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3244 transitions. Word has length 723 [2024-11-18 16:35:35,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:35,639 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3244 transitions. [2024-11-18 16:35:35,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.2) internal successors, (661), 5 states have internal predecessors, (661), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:35,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3244 transitions. [2024-11-18 16:35:35,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2024-11-18 16:35:35,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:35,643 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:35,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 16:35:35,644 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:35,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash 688344660, now seen corresponding path program 1 times [2024-11-18 16:35:35,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:35,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563382261] [2024-11-18 16:35:35,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:35,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:36,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:36,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563382261] [2024-11-18 16:35:36,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563382261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:36,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:36,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:36,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709360928] [2024-11-18 16:35:36,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:36,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:36,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:36,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:36,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:36,505 INFO L87 Difference]: Start difference. First operand 2181 states and 3244 transitions. Second operand has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:36,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:36,727 INFO L93 Difference]: Finished difference Result 4020 states and 5976 transitions. [2024-11-18 16:35:36,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:36,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 724 [2024-11-18 16:35:36,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:36,731 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:36,731 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:36,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:36,733 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 5592 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5605 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:36,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5605 Valid, 6134 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:35:36,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:36,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:36,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4852262234533702) internal successors, (3217), 2166 states have internal predecessors, (3217), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:36,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3243 transitions. [2024-11-18 16:35:36,751 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3243 transitions. Word has length 724 [2024-11-18 16:35:36,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:36,752 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3243 transitions. [2024-11-18 16:35:36,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:36,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3243 transitions. [2024-11-18 16:35:36,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-18 16:35:36,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:36,756 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:36,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 16:35:36,756 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:36,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:36,757 INFO L85 PathProgramCache]: Analyzing trace with hash -750760872, now seen corresponding path program 1 times [2024-11-18 16:35:36,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:36,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337064048] [2024-11-18 16:35:36,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:36,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:37,696 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:37,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:37,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337064048] [2024-11-18 16:35:37,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337064048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:37,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:37,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:37,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461021867] [2024-11-18 16:35:37,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:37,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:37,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:37,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:37,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:37,699 INFO L87 Difference]: Start difference. First operand 2181 states and 3243 transitions. Second operand has 5 states, 5 states have (on average 132.6) internal successors, (663), 5 states have internal predecessors, (663), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:37,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:37,924 INFO L93 Difference]: Finished difference Result 4020 states and 5974 transitions. [2024-11-18 16:35:37,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:37,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 132.6) internal successors, (663), 5 states have internal predecessors, (663), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 725 [2024-11-18 16:35:37,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:37,928 INFO L225 Difference]: With dead ends: 4020 [2024-11-18 16:35:37,928 INFO L226 Difference]: Without dead ends: 2181 [2024-11-18 16:35:37,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:37,929 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 5584 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5597 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:37,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5597 Valid, 6134 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:35:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-18 16:35:37,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-18 16:35:37,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2166 states have (on average 1.4847645429362881) internal successors, (3216), 2166 states have internal predecessors, (3216), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:37,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3242 transitions. [2024-11-18 16:35:37,947 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3242 transitions. Word has length 725 [2024-11-18 16:35:37,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:37,948 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3242 transitions. [2024-11-18 16:35:37,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.6) internal successors, (663), 5 states have internal predecessors, (663), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:37,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3242 transitions. [2024-11-18 16:35:37,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2024-11-18 16:35:37,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:37,951 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:37,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 16:35:37,952 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:37,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:37,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1758634227, now seen corresponding path program 1 times [2024-11-18 16:35:37,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:37,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426540304] [2024-11-18 16:35:37,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:37,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:39,153 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:39,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:39,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426540304] [2024-11-18 16:35:39,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426540304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:39,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:39,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:35:39,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037874422] [2024-11-18 16:35:39,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:39,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:35:39,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:39,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:35:39,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:35:39,155 INFO L87 Difference]: Start difference. First operand 2181 states and 3242 transitions. Second operand has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:39,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:39,338 INFO L93 Difference]: Finished difference Result 4019 states and 5971 transitions. [2024-11-18 16:35:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:39,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 726 [2024-11-18 16:35:39,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:39,342 INFO L225 Difference]: With dead ends: 4019 [2024-11-18 16:35:39,342 INFO L226 Difference]: Without dead ends: 2180 [2024-11-18 16:35:39,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:39,344 INFO L432 NwaCegarLoop]: 3124 mSDtfsCounter, 2641 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2641 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:39,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2641 Valid, 6250 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:35:39,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-18 16:35:39,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2024-11-18 16:35:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2165 states have (on average 1.4840646651270208) internal successors, (3213), 2165 states have internal predecessors, (3213), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3239 transitions. [2024-11-18 16:35:39,367 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3239 transitions. Word has length 726 [2024-11-18 16:35:39,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:39,368 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3239 transitions. [2024-11-18 16:35:39,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:39,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3239 transitions. [2024-11-18 16:35:39,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2024-11-18 16:35:39,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:39,373 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:39,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 16:35:39,374 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:39,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:39,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1022137784, now seen corresponding path program 1 times [2024-11-18 16:35:39,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:39,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256601364] [2024-11-18 16:35:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:39,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:40,437 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:40,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:40,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256601364] [2024-11-18 16:35:40,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256601364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:40,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:40,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:40,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973712069] [2024-11-18 16:35:40,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:40,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:40,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:40,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:40,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:40,439 INFO L87 Difference]: Start difference. First operand 2180 states and 3239 transitions. Second operand has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:40,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:40,582 INFO L93 Difference]: Finished difference Result 4470 states and 6628 transitions. [2024-11-18 16:35:40,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:35:40,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 727 [2024-11-18 16:35:40,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:40,585 INFO L225 Difference]: With dead ends: 4470 [2024-11-18 16:35:40,586 INFO L226 Difference]: Without dead ends: 2180 [2024-11-18 16:35:40,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:35:40,588 INFO L432 NwaCegarLoop]: 3212 mSDtfsCounter, 3947 mSDsluCounter, 6350 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3947 SdHoareTripleChecker+Valid, 9562 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:40,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3947 Valid, 9562 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:35:40,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-18 16:35:40,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2024-11-18 16:35:40,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2165 states have (on average 1.4836027713625866) internal successors, (3212), 2165 states have internal predecessors, (3212), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:40,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3238 transitions. [2024-11-18 16:35:40,607 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3238 transitions. Word has length 727 [2024-11-18 16:35:40,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:40,608 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3238 transitions. [2024-11-18 16:35:40,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:40,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3238 transitions. [2024-11-18 16:35:40,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2024-11-18 16:35:40,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:40,612 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:40,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 16:35:40,612 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:40,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:40,613 INFO L85 PathProgramCache]: Analyzing trace with hash -649893843, now seen corresponding path program 1 times [2024-11-18 16:35:40,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:40,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191470136] [2024-11-18 16:35:40,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:40,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:41,492 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:41,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:41,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191470136] [2024-11-18 16:35:41,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191470136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:41,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:41,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:41,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184347346] [2024-11-18 16:35:41,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:41,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:41,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:41,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:41,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:41,494 INFO L87 Difference]: Start difference. First operand 2180 states and 3238 transitions. Second operand has 5 states, 5 states have (on average 133.2) internal successors, (666), 5 states have internal predecessors, (666), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:41,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:41,650 INFO L93 Difference]: Finished difference Result 4018 states and 5964 transitions. [2024-11-18 16:35:41,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:41,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 133.2) internal successors, (666), 5 states have internal predecessors, (666), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 728 [2024-11-18 16:35:41,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:41,653 INFO L225 Difference]: With dead ends: 4018 [2024-11-18 16:35:41,653 INFO L226 Difference]: Without dead ends: 2180 [2024-11-18 16:35:41,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:41,655 INFO L432 NwaCegarLoop]: 3124 mSDtfsCounter, 6088 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6101 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:41,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6101 Valid, 6250 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:35:41,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-18 16:35:41,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2024-11-18 16:35:41,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2165 states have (on average 1.4831408775981525) internal successors, (3211), 2165 states have internal predecessors, (3211), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:41,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3237 transitions. [2024-11-18 16:35:41,674 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3237 transitions. Word has length 728 [2024-11-18 16:35:41,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:41,675 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3237 transitions. [2024-11-18 16:35:41,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.2) internal successors, (666), 5 states have internal predecessors, (666), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:41,675 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3237 transitions. [2024-11-18 16:35:41,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2024-11-18 16:35:41,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:41,679 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:41,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 16:35:41,679 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:41,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:41,679 INFO L85 PathProgramCache]: Analyzing trace with hash 2104706513, now seen corresponding path program 1 times [2024-11-18 16:35:41,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:41,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882099104] [2024-11-18 16:35:41,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:41,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:42,543 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:42,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:42,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882099104] [2024-11-18 16:35:42,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882099104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:42,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:42,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:42,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474177634] [2024-11-18 16:35:42,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:42,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:42,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:42,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:42,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:42,545 INFO L87 Difference]: Start difference. First operand 2180 states and 3237 transitions. Second operand has 5 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:42,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:42,702 INFO L93 Difference]: Finished difference Result 4018 states and 5962 transitions. [2024-11-18 16:35:42,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:42,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 729 [2024-11-18 16:35:42,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:42,705 INFO L225 Difference]: With dead ends: 4018 [2024-11-18 16:35:42,705 INFO L226 Difference]: Without dead ends: 2180 [2024-11-18 16:35:42,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:42,707 INFO L432 NwaCegarLoop]: 3124 mSDtfsCounter, 5922 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5935 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:42,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5935 Valid, 6250 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:35:42,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-18 16:35:42,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2024-11-18 16:35:42,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2165 states have (on average 1.4826789838337182) internal successors, (3210), 2165 states have internal predecessors, (3210), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:42,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3236 transitions. [2024-11-18 16:35:42,725 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3236 transitions. Word has length 729 [2024-11-18 16:35:42,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:42,726 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3236 transitions. [2024-11-18 16:35:42,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:42,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3236 transitions. [2024-11-18 16:35:42,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2024-11-18 16:35:42,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:42,730 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:42,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 16:35:42,730 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:42,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:42,731 INFO L85 PathProgramCache]: Analyzing trace with hash 28790701, now seen corresponding path program 1 times [2024-11-18 16:35:42,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:42,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207227704] [2024-11-18 16:35:42,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:42,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:43,671 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:43,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:43,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207227704] [2024-11-18 16:35:43,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207227704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:43,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:43,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:43,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406804205] [2024-11-18 16:35:43,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:43,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:43,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:43,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:43,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:43,673 INFO L87 Difference]: Start difference. First operand 2180 states and 3236 transitions. Second operand has 5 states, 5 states have (on average 133.6) internal successors, (668), 5 states have internal predecessors, (668), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:43,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:43,823 INFO L93 Difference]: Finished difference Result 4018 states and 5960 transitions. [2024-11-18 16:35:43,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:43,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 133.6) internal successors, (668), 5 states have internal predecessors, (668), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 730 [2024-11-18 16:35:43,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:43,825 INFO L225 Difference]: With dead ends: 4018 [2024-11-18 16:35:43,825 INFO L226 Difference]: Without dead ends: 2180 [2024-11-18 16:35:43,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:43,827 INFO L432 NwaCegarLoop]: 3124 mSDtfsCounter, 5914 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5927 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:43,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5927 Valid, 6250 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:35:43,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-18 16:35:43,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2024-11-18 16:35:43,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2165 states have (on average 1.4822170900692841) internal successors, (3209), 2165 states have internal predecessors, (3209), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:43,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3235 transitions. [2024-11-18 16:35:43,845 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3235 transitions. Word has length 730 [2024-11-18 16:35:43,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:43,845 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3235 transitions. [2024-11-18 16:35:43,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.6) internal successors, (668), 5 states have internal predecessors, (668), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:43,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3235 transitions. [2024-11-18 16:35:43,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2024-11-18 16:35:43,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:43,849 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:43,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 16:35:43,849 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:43,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:43,849 INFO L85 PathProgramCache]: Analyzing trace with hash -993189768, now seen corresponding path program 1 times [2024-11-18 16:35:43,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:43,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665160701] [2024-11-18 16:35:43,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:43,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:44,875 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:44,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:44,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665160701] [2024-11-18 16:35:44,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665160701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:44,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:44,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:44,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399887183] [2024-11-18 16:35:44,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:44,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:44,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:44,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:44,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:44,877 INFO L87 Difference]: Start difference. First operand 2180 states and 3235 transitions. Second operand has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:45,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:45,027 INFO L93 Difference]: Finished difference Result 4018 states and 5958 transitions. [2024-11-18 16:35:45,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:45,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 731 [2024-11-18 16:35:45,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:45,030 INFO L225 Difference]: With dead ends: 4018 [2024-11-18 16:35:45,030 INFO L226 Difference]: Without dead ends: 2180 [2024-11-18 16:35:45,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:45,032 INFO L432 NwaCegarLoop]: 3124 mSDtfsCounter, 3032 mSDsluCounter, 3143 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3045 SdHoareTripleChecker+Valid, 6267 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:45,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3045 Valid, 6267 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:35:45,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-18 16:35:45,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2024-11-18 16:35:45,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2165 states have (on average 1.4817551963048499) internal successors, (3208), 2165 states have internal predecessors, (3208), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:45,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3234 transitions. [2024-11-18 16:35:45,052 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3234 transitions. Word has length 731 [2024-11-18 16:35:45,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:45,052 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3234 transitions. [2024-11-18 16:35:45,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:45,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3234 transitions. [2024-11-18 16:35:45,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2024-11-18 16:35:45,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:45,056 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:45,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 16:35:45,057 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:45,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:45,057 INFO L85 PathProgramCache]: Analyzing trace with hash 234886669, now seen corresponding path program 1 times [2024-11-18 16:35:45,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:45,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752968550] [2024-11-18 16:35:45,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:45,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:46,031 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:46,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:46,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752968550] [2024-11-18 16:35:46,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752968550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:46,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:46,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:46,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401752173] [2024-11-18 16:35:46,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:46,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:46,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:46,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:46,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:46,033 INFO L87 Difference]: Start difference. First operand 2180 states and 3234 transitions. Second operand has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:46,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:46,183 INFO L93 Difference]: Finished difference Result 4018 states and 5956 transitions. [2024-11-18 16:35:46,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:46,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 732 [2024-11-18 16:35:46,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:46,186 INFO L225 Difference]: With dead ends: 4018 [2024-11-18 16:35:46,186 INFO L226 Difference]: Without dead ends: 2180 [2024-11-18 16:35:46,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:46,189 INFO L432 NwaCegarLoop]: 3124 mSDtfsCounter, 5740 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5753 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:46,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5753 Valid, 6250 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:35:46,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-18 16:35:46,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2024-11-18 16:35:46,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2165 states have (on average 1.4812933025404158) internal successors, (3207), 2165 states have internal predecessors, (3207), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:46,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3233 transitions. [2024-11-18 16:35:46,210 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3233 transitions. Word has length 732 [2024-11-18 16:35:46,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:46,210 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3233 transitions. [2024-11-18 16:35:46,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:46,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3233 transitions. [2024-11-18 16:35:46,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2024-11-18 16:35:46,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:46,214 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:46,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 16:35:46,215 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:46,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:46,215 INFO L85 PathProgramCache]: Analyzing trace with hash 708622161, now seen corresponding path program 1 times [2024-11-18 16:35:46,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:46,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044433673] [2024-11-18 16:35:46,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:46,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:47,166 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:47,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:47,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044433673] [2024-11-18 16:35:47,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044433673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:47,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:47,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:35:47,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118721097] [2024-11-18 16:35:47,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:47,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:35:47,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:47,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:35:47,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:47,168 INFO L87 Difference]: Start difference. First operand 2180 states and 3233 transitions. Second operand has 5 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:47,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:47,332 INFO L93 Difference]: Finished difference Result 4018 states and 5954 transitions. [2024-11-18 16:35:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:47,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 733 [2024-11-18 16:35:47,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:47,335 INFO L225 Difference]: With dead ends: 4018 [2024-11-18 16:35:47,335 INFO L226 Difference]: Without dead ends: 2180 [2024-11-18 16:35:47,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:35:47,337 INFO L432 NwaCegarLoop]: 3124 mSDtfsCounter, 5574 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5587 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:47,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5587 Valid, 6250 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:35:47,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-18 16:35:47,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2024-11-18 16:35:47,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2165 states have (on average 1.4808314087759815) internal successors, (3206), 2165 states have internal predecessors, (3206), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3232 transitions. [2024-11-18 16:35:47,356 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3232 transitions. Word has length 733 [2024-11-18 16:35:47,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:47,356 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3232 transitions. [2024-11-18 16:35:47,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:47,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3232 transitions. [2024-11-18 16:35:47,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2024-11-18 16:35:47,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:47,360 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:47,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-18 16:35:47,361 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:47,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:47,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2141893005, now seen corresponding path program 1 times [2024-11-18 16:35:47,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:47,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553690101] [2024-11-18 16:35:47,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:47,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:48,955 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:48,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:48,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553690101] [2024-11-18 16:35:48,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553690101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:48,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:48,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:35:48,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583312941] [2024-11-18 16:35:48,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:48,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:35:48,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:48,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:35:48,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:35:48,957 INFO L87 Difference]: Start difference. First operand 2180 states and 3232 transitions. Second operand has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:49,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:49,105 INFO L93 Difference]: Finished difference Result 4018 states and 5952 transitions. [2024-11-18 16:35:49,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:49,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 734 [2024-11-18 16:35:49,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:49,107 INFO L225 Difference]: With dead ends: 4018 [2024-11-18 16:35:49,107 INFO L226 Difference]: Without dead ends: 2180 [2024-11-18 16:35:49,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:49,109 INFO L432 NwaCegarLoop]: 3124 mSDtfsCounter, 2884 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2884 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:49,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2884 Valid, 6250 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:35:49,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-18 16:35:49,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2024-11-18 16:35:49,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2165 states have (on average 1.4803695150115475) internal successors, (3205), 2165 states have internal predecessors, (3205), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:49,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3231 transitions. [2024-11-18 16:35:49,125 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3231 transitions. Word has length 734 [2024-11-18 16:35:49,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:49,125 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3231 transitions. [2024-11-18 16:35:49,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:49,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3231 transitions. [2024-11-18 16:35:49,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 736 [2024-11-18 16:35:49,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:49,129 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:49,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 16:35:49,130 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:49,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:49,130 INFO L85 PathProgramCache]: Analyzing trace with hash 86300949, now seen corresponding path program 1 times [2024-11-18 16:35:49,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:49,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070733416] [2024-11-18 16:35:49,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:49,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:50,697 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:50,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:50,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070733416] [2024-11-18 16:35:50,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070733416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:50,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:50,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:35:50,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657469413] [2024-11-18 16:35:50,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:50,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:35:50,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:50,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:35:50,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:35:50,699 INFO L87 Difference]: Start difference. First operand 2180 states and 3231 transitions. Second operand has 4 states, 4 states have (on average 168.25) internal successors, (673), 4 states have internal predecessors, (673), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:50,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:50,849 INFO L93 Difference]: Finished difference Result 4018 states and 5950 transitions. [2024-11-18 16:35:50,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:50,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 168.25) internal successors, (673), 4 states have internal predecessors, (673), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 735 [2024-11-18 16:35:50,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:50,852 INFO L225 Difference]: With dead ends: 4018 [2024-11-18 16:35:50,852 INFO L226 Difference]: Without dead ends: 2180 [2024-11-18 16:35:50,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:50,854 INFO L432 NwaCegarLoop]: 3124 mSDtfsCounter, 2797 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2797 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:50,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2797 Valid, 6250 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:35:50,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-18 16:35:50,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2024-11-18 16:35:50,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2165 states have (on average 1.4799076212471132) internal successors, (3204), 2165 states have internal predecessors, (3204), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:50,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3230 transitions. [2024-11-18 16:35:50,872 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3230 transitions. Word has length 735 [2024-11-18 16:35:50,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:50,873 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3230 transitions. [2024-11-18 16:35:50,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 168.25) internal successors, (673), 4 states have internal predecessors, (673), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:50,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3230 transitions. [2024-11-18 16:35:50,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 737 [2024-11-18 16:35:50,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:50,876 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:50,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-18 16:35:50,877 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:50,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:50,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1487342868, now seen corresponding path program 1 times [2024-11-18 16:35:50,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:50,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531775029] [2024-11-18 16:35:50,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:50,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:52,494 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:52,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:52,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531775029] [2024-11-18 16:35:52,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531775029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:52,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:52,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:35:52,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917443829] [2024-11-18 16:35:52,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:52,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:35:52,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:52,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:35:52,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:35:52,497 INFO L87 Difference]: Start difference. First operand 2180 states and 3230 transitions. Second operand has 4 states, 4 states have (on average 168.5) internal successors, (674), 4 states have internal predecessors, (674), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:52,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:52,647 INFO L93 Difference]: Finished difference Result 4018 states and 5948 transitions. [2024-11-18 16:35:52,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:52,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 168.5) internal successors, (674), 4 states have internal predecessors, (674), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 736 [2024-11-18 16:35:52,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:52,650 INFO L225 Difference]: With dead ends: 4018 [2024-11-18 16:35:52,650 INFO L226 Difference]: Without dead ends: 2180 [2024-11-18 16:35:52,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:52,652 INFO L432 NwaCegarLoop]: 3124 mSDtfsCounter, 2710 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2710 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:52,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2710 Valid, 6250 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:35:52,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-18 16:35:52,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2024-11-18 16:35:52,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2165 states have (on average 1.4794457274826789) internal successors, (3203), 2165 states have internal predecessors, (3203), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:52,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3229 transitions. [2024-11-18 16:35:52,672 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3229 transitions. Word has length 736 [2024-11-18 16:35:52,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:52,673 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3229 transitions. [2024-11-18 16:35:52,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 168.5) internal successors, (674), 4 states have internal predecessors, (674), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:52,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3229 transitions. [2024-11-18 16:35:52,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 738 [2024-11-18 16:35:52,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:52,677 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:52,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-18 16:35:52,677 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:52,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:52,678 INFO L85 PathProgramCache]: Analyzing trace with hash 376237622, now seen corresponding path program 1 times [2024-11-18 16:35:52,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:52,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845557514] [2024-11-18 16:35:52,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:52,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:54,216 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:54,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:54,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845557514] [2024-11-18 16:35:54,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845557514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:54,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:54,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:35:54,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131584320] [2024-11-18 16:35:54,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:54,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:35:54,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:54,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:35:54,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:35:54,218 INFO L87 Difference]: Start difference. First operand 2180 states and 3229 transitions. Second operand has 4 states, 4 states have (on average 168.75) internal successors, (675), 4 states have internal predecessors, (675), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:54,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:54,375 INFO L93 Difference]: Finished difference Result 4018 states and 5946 transitions. [2024-11-18 16:35:54,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:35:54,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 168.75) internal successors, (675), 4 states have internal predecessors, (675), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 737 [2024-11-18 16:35:54,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:54,378 INFO L225 Difference]: With dead ends: 4018 [2024-11-18 16:35:54,378 INFO L226 Difference]: Without dead ends: 2180 [2024-11-18 16:35:54,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:35:54,380 INFO L432 NwaCegarLoop]: 3124 mSDtfsCounter, 2623 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2623 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:54,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2623 Valid, 6250 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:35:54,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-18 16:35:54,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2024-11-18 16:35:54,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2165 states have (on average 1.4789838337182448) internal successors, (3202), 2165 states have internal predecessors, (3202), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:54,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3228 transitions. [2024-11-18 16:35:54,398 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3228 transitions. Word has length 737 [2024-11-18 16:35:54,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:54,398 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3228 transitions. [2024-11-18 16:35:54,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 168.75) internal successors, (675), 4 states have internal predecessors, (675), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 16:35:54,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3228 transitions. [2024-11-18 16:35:54,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 739 [2024-11-18 16:35:54,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:54,403 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:54,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-18 16:35:54,403 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:54,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:54,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1465453749, now seen corresponding path program 1 times [2024-11-18 16:35:54,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:54,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52501786] [2024-11-18 16:35:54,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:54,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:35:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:35:57,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:35:57,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52501786] [2024-11-18 16:35:57,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52501786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:35:57,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:35:57,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:35:57,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196524107] [2024-11-18 16:35:57,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:35:57,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:35:57,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:35:57,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:35:57,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:35:57,519 INFO L87 Difference]: Start difference. First operand 2180 states and 3228 transitions. Second operand has 7 states, 7 states have (on average 96.57142857142857) internal successors, (676), 7 states have internal predecessors, (676), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-18 16:35:58,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:35:58,718 INFO L93 Difference]: Finished difference Result 4022 states and 5950 transitions. [2024-11-18 16:35:58,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:35:58,718 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 96.57142857142857) internal successors, (676), 7 states have internal predecessors, (676), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 738 [2024-11-18 16:35:58,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:35:58,722 INFO L225 Difference]: With dead ends: 4022 [2024-11-18 16:35:58,722 INFO L226 Difference]: Without dead ends: 2184 [2024-11-18 16:35:58,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-18 16:35:58,724 INFO L432 NwaCegarLoop]: 2493 mSDtfsCounter, 6104 mSDsluCounter, 7452 mSDsCounter, 0 mSdLazyCounter, 2960 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6114 SdHoareTripleChecker+Valid, 9945 SdHoareTripleChecker+Invalid, 2967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:35:58,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6114 Valid, 9945 Invalid, 2967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2960 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 16:35:58,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2024-11-18 16:35:58,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 2182. [2024-11-18 16:35:58,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2167 states have (on average 1.4780802953391785) internal successors, (3203), 2167 states have internal predecessors, (3203), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:35:58,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 3229 transitions. [2024-11-18 16:35:58,749 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 3229 transitions. Word has length 738 [2024-11-18 16:35:58,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:35:58,750 INFO L471 AbstractCegarLoop]: Abstraction has 2182 states and 3229 transitions. [2024-11-18 16:35:58,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 96.57142857142857) internal successors, (676), 7 states have internal predecessors, (676), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-18 16:35:58,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 3229 transitions. [2024-11-18 16:35:58,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 740 [2024-11-18 16:35:58,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:35:58,753 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:35:58,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-18 16:35:58,754 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:35:58,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:35:58,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1865137283, now seen corresponding path program 1 times [2024-11-18 16:35:58,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:35:58,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371633809] [2024-11-18 16:35:58,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:35:58,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:35:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:36:00,760 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:36:00,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:36:00,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371633809] [2024-11-18 16:36:00,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371633809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:36:00,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:36:00,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:36:00,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687235578] [2024-11-18 16:36:00,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:36:00,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:36:00,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:36:00,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:36:00,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:36:00,762 INFO L87 Difference]: Start difference. First operand 2182 states and 3229 transitions. Second operand has 4 states, 4 states have (on average 169.25) internal successors, (677), 4 states have internal predecessors, (677), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:36:01,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:36:01,470 INFO L93 Difference]: Finished difference Result 4022 states and 5946 transitions. [2024-11-18 16:36:01,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:36:01,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 169.25) internal successors, (677), 4 states have internal predecessors, (677), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 739 [2024-11-18 16:36:01,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:36:01,474 INFO L225 Difference]: With dead ends: 4022 [2024-11-18 16:36:01,474 INFO L226 Difference]: Without dead ends: 2182 [2024-11-18 16:36:01,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:36:01,475 INFO L432 NwaCegarLoop]: 2523 mSDtfsCounter, 3019 mSDsluCounter, 2522 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3024 SdHoareTripleChecker+Valid, 5045 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:36:01,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3024 Valid, 5045 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:36:01,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2024-11-18 16:36:01,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 2182. [2024-11-18 16:36:01,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2167 states have (on average 1.477618827872635) internal successors, (3202), 2167 states have internal predecessors, (3202), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:36:01,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 3228 transitions. [2024-11-18 16:36:01,495 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 3228 transitions. Word has length 739 [2024-11-18 16:36:01,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:36:01,495 INFO L471 AbstractCegarLoop]: Abstraction has 2182 states and 3228 transitions. [2024-11-18 16:36:01,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 169.25) internal successors, (677), 4 states have internal predecessors, (677), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:36:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 3228 transitions. [2024-11-18 16:36:01,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 741 [2024-11-18 16:36:01,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:36:01,499 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:36:01,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-18 16:36:01,500 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:36:01,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:36:01,501 INFO L85 PathProgramCache]: Analyzing trace with hash -182320033, now seen corresponding path program 1 times [2024-11-18 16:36:01,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:36:01,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800508223] [2024-11-18 16:36:01,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:36:01,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:36:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:36:03,788 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 16:36:03,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:36:03,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800508223] [2024-11-18 16:36:03,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800508223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:36:03,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:36:03,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:36:03,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54976548] [2024-11-18 16:36:03,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:36:03,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:36:03,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:36:03,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:36:03,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:36:03,790 INFO L87 Difference]: Start difference. First operand 2182 states and 3228 transitions. Second operand has 4 states, 4 states have (on average 169.5) internal successors, (678), 4 states have internal predecessors, (678), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:36:04,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:36:04,505 INFO L93 Difference]: Finished difference Result 4022 states and 5944 transitions. [2024-11-18 16:36:04,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:36:04,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 169.5) internal successors, (678), 4 states have internal predecessors, (678), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 740 [2024-11-18 16:36:04,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:36:04,509 INFO L225 Difference]: With dead ends: 4022 [2024-11-18 16:36:04,509 INFO L226 Difference]: Without dead ends: 2182 [2024-11-18 16:36:04,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:36:04,511 INFO L432 NwaCegarLoop]: 2523 mSDtfsCounter, 2847 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2852 SdHoareTripleChecker+Valid, 5028 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:36:04,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2852 Valid, 5028 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:36:04,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2024-11-18 16:36:04,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 2182. [2024-11-18 16:36:04,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2167 states have (on average 1.4771573604060915) internal successors, (3201), 2167 states have internal predecessors, (3201), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 16:36:04,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 3227 transitions. [2024-11-18 16:36:04,530 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 3227 transitions. Word has length 740 [2024-11-18 16:36:04,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:36:04,531 INFO L471 AbstractCegarLoop]: Abstraction has 2182 states and 3227 transitions. [2024-11-18 16:36:04,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 169.5) internal successors, (678), 4 states have internal predecessors, (678), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 16:36:04,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 3227 transitions. [2024-11-18 16:36:04,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 742 [2024-11-18 16:36:04,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:36:04,535 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:36:04,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-18 16:36:04,535 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:36:04,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:36:04,536 INFO L85 PathProgramCache]: Analyzing trace with hash -413484219, now seen corresponding path program 1 times [2024-11-18 16:36:04,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:36:04,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126725461] [2024-11-18 16:36:04,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:36:04,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms