./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d32_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_n3_w16_d32_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 0f42404725c30f9983ddfbbaf2ad1b41ca55f3a68fd98b1a897217d770afb16d --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 07:48:10,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 07:48:10,175 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 07:48:10,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 07:48:10,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 07:48:10,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 07:48:10,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 07:48:10,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 07:48:10,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 07:48:10,205 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 07:48:10,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 07:48:10,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 07:48:10,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 07:48:10,206 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 07:48:10,206 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 07:48:10,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 07:48:10,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 07:48:10,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 07:48:10,207 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 07:48:10,207 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 07:48:10,207 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 07:48:10,208 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 07:48:10,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 07:48:10,208 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 07:48:10,208 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 07:48:10,208 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 07:48:10,208 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 07:48:10,208 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 0f42404725c30f9983ddfbbaf2ad1b41ca55f3a68fd98b1a897217d770afb16d [2025-03-08 07:48:10,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 07:48:10,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 07:48:10,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 07:48:10,447 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 07:48:10,449 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 07:48:10,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d32_e0.c [2025-03-08 07:48:11,582 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1625b89e6/db09638b7dae4fc284607dadcdcd3b38/FLAG029ab67a0 [2025-03-08 07:48:11,923 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 07:48:11,923 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d32_e0.c [2025-03-08 07:48:11,943 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1625b89e6/db09638b7dae4fc284607dadcdcd3b38/FLAG029ab67a0 [2025-03-08 07:48:12,142 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1625b89e6/db09638b7dae4fc284607dadcdcd3b38 [2025-03-08 07:48:12,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 07:48:12,145 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 07:48:12,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 07:48:12,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 07:48:12,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 07:48:12,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:12,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a8cba8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12, skipping insertion in model container [2025-03-08 07:48:12,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:12,198 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 07:48:12,344 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_n3_w16_d32_e0.c[1271,1284] [2025-03-08 07:48:12,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 07:48:12,723 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 07:48:12,732 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_n3_w16_d32_e0.c[1271,1284] [2025-03-08 07:48:12,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 07:48:12,984 INFO L204 MainTranslator]: Completed translation [2025-03-08 07:48:12,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12 WrapperNode [2025-03-08 07:48:12,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 07:48:12,986 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 07:48:12,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 07:48:12,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 07:48:12,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:13,054 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:13,676 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 8689 [2025-03-08 07:48:13,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 07:48:13,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 07:48:13,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 07:48:13,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 07:48:13,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:13,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:13,837 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:13,966 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]. [2025-03-08 07:48:13,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:13,971 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:14,143 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:14,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:14,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:14,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:14,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 07:48:14,439 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 07:48:14,440 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 07:48:14,440 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 07:48:14,441 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12" (1/1) ... [2025-03-08 07:48:14,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 07:48:14,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 07:48:14,488 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) [2025-03-08 07:48:14,491 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 [2025-03-08 07:48:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 07:48:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 07:48:14,514 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 07:48:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 07:48:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 07:48:14,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 07:48:15,039 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 07:48:15,040 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 07:48:23,480 INFO L? ?]: Removed 4982 outVars from TransFormulas that were not future-live. [2025-03-08 07:48:23,480 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 07:48:23,695 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 07:48:23,695 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 07:48:23,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 07:48:23 BoogieIcfgContainer [2025-03-08 07:48:23,696 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 07:48:23,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 07:48:23,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 07:48:23,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 07:48:23,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 07:48:12" (1/3) ... [2025-03-08 07:48:23,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cce727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 07:48:23, skipping insertion in model container [2025-03-08 07:48:23,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:48:12" (2/3) ... [2025-03-08 07:48:23,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cce727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 07:48:23, skipping insertion in model container [2025-03-08 07:48:23,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 07:48:23" (3/3) ... [2025-03-08 07:48:23,703 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n3_w16_d32_e0.c [2025-03-08 07:48:23,716 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 07:48:23,718 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.arbitrated_top_n3_w16_d32_e0.c that has 2 procedures, 2442 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 07:48:23,795 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 07:48:23,805 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;@d7ad0ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 07:48:23,806 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 07:48:23,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 2442 states, 2429 states have (on average 1.4973240016467682) internal successors, (3637), 2430 states have internal predecessors, (3637), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:23,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2025-03-08 07:48:23,840 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:23,841 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:23,842 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:23,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:23,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1952698279, now seen corresponding path program 1 times [2025-03-08 07:48:23,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:23,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947957806] [2025-03-08 07:48:23,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:23,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:24,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 685 statements into 1 equivalence classes. [2025-03-08 07:48:24,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 685 of 685 statements. [2025-03-08 07:48:24,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:24,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:24,715 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2025-03-08 07:48:24,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:24,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947957806] [2025-03-08 07:48:24,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947957806] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 07:48:24,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952410868] [2025-03-08 07:48:24,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:24,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 07:48:24,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 07:48:24,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 07:48:24,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 07:48:25,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 685 statements into 1 equivalence classes. [2025-03-08 07:48:25,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 685 of 685 statements. [2025-03-08 07:48:25,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:25,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:25,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 3975 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 07:48:25,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 07:48:25,946 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2025-03-08 07:48:25,946 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 07:48:25,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952410868] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:25,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 07:48:25,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 07:48:25,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015726408] [2025-03-08 07:48:25,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:25,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 07:48:25,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:25,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 07:48:25,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 07:48:25,974 INFO L87 Difference]: Start difference. First operand has 2442 states, 2429 states have (on average 1.4973240016467682) internal successors, (3637), 2430 states have internal predecessors, (3637), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 320.0) internal successors, (640), 2 states have internal predecessors, (640), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 07:48:26,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:26,614 INFO L93 Difference]: Finished difference Result 4427 states and 6642 transitions. [2025-03-08 07:48:26,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 07:48:26,617 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 320.0) internal successors, (640), 2 states have internal predecessors, (640), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 685 [2025-03-08 07:48:26,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:26,633 INFO L225 Difference]: With dead ends: 4427 [2025-03-08 07:48:26,633 INFO L226 Difference]: Without dead ends: 2439 [2025-03-08 07:48:26,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 07:48:26,640 INFO L435 NwaCegarLoop]: 3050 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:26,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3050 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 07:48:26,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2025-03-08 07:48:26,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2439. [2025-03-08 07:48:26,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2427 states have (on average 1.496497733827771) internal successors, (3632), 2427 states have internal predecessors, (3632), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:26,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3652 transitions. [2025-03-08 07:48:26,749 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3652 transitions. Word has length 685 [2025-03-08 07:48:26,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:26,752 INFO L471 AbstractCegarLoop]: Abstraction has 2439 states and 3652 transitions. [2025-03-08 07:48:26,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 320.0) internal successors, (640), 2 states have internal predecessors, (640), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 07:48:26,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3652 transitions. [2025-03-08 07:48:26,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2025-03-08 07:48:26,764 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:26,764 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:26,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 07:48:26,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 07:48:26,966 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:26,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:26,968 INFO L85 PathProgramCache]: Analyzing trace with hash 808854493, now seen corresponding path program 1 times [2025-03-08 07:48:26,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:26,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925867405] [2025-03-08 07:48:26,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:26,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:27,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 685 statements into 1 equivalence classes. [2025-03-08 07:48:27,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 685 of 685 statements. [2025-03-08 07:48:27,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:27,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:30,429 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:30,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:30,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925867405] [2025-03-08 07:48:30,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925867405] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:30,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:30,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 07:48:30,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468023956] [2025-03-08 07:48:30,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:30,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 07:48:30,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:30,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 07:48:30,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 07:48:30,436 INFO L87 Difference]: Start difference. First operand 2439 states and 3652 transitions. Second operand has 4 states, 4 states have (on average 159.5) internal successors, (638), 4 states have internal predecessors, (638), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:31,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:31,344 INFO L93 Difference]: Finished difference Result 2443 states and 3656 transitions. [2025-03-08 07:48:31,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:31,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 159.5) internal successors, (638), 4 states have internal predecessors, (638), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 685 [2025-03-08 07:48:31,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:31,352 INFO L225 Difference]: With dead ends: 2443 [2025-03-08 07:48:31,353 INFO L226 Difference]: Without dead ends: 2441 [2025-03-08 07:48:31,353 INFO L434 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 [2025-03-08 07:48:31,354 INFO L435 NwaCegarLoop]: 3048 mSDtfsCounter, 0 mSDsluCounter, 6091 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9139 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:31,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9139 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 07:48:31,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2025-03-08 07:48:31,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2441. [2025-03-08 07:48:31,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2429 states have (on average 1.4960889254837382) internal successors, (3634), 2429 states have internal predecessors, (3634), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:31,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3654 transitions. [2025-03-08 07:48:31,393 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3654 transitions. Word has length 685 [2025-03-08 07:48:31,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:31,395 INFO L471 AbstractCegarLoop]: Abstraction has 2441 states and 3654 transitions. [2025-03-08 07:48:31,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 159.5) internal successors, (638), 4 states have internal predecessors, (638), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:31,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3654 transitions. [2025-03-08 07:48:31,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2025-03-08 07:48:31,399 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:31,400 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:31,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 07:48:31,400 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:31,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:31,401 INFO L85 PathProgramCache]: Analyzing trace with hash -690633304, now seen corresponding path program 1 times [2025-03-08 07:48:31,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:31,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044758487] [2025-03-08 07:48:31,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:31,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:31,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 686 statements into 1 equivalence classes. [2025-03-08 07:48:31,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 686 of 686 statements. [2025-03-08 07:48:31,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:31,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:33,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:33,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044758487] [2025-03-08 07:48:33,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044758487] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:33,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:33,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:33,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240812036] [2025-03-08 07:48:33,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:33,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:33,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:33,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:33,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:33,039 INFO L87 Difference]: Start difference. First operand 2441 states and 3654 transitions. Second operand has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 07:48:35,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:35,168 INFO L93 Difference]: Finished difference Result 6099 states and 9133 transitions. [2025-03-08 07:48:35,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 07:48:35,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 686 [2025-03-08 07:48:35,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:35,177 INFO L225 Difference]: With dead ends: 6099 [2025-03-08 07:48:35,178 INFO L226 Difference]: Without dead ends: 2441 [2025-03-08 07:48:35,180 INFO L434 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 [2025-03-08 07:48:35,182 INFO L435 NwaCegarLoop]: 2986 mSDtfsCounter, 7539 mSDsluCounter, 5411 mSDsCounter, 0 mSdLazyCounter, 2852 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7545 SdHoareTripleChecker+Valid, 8397 SdHoareTripleChecker+Invalid, 3013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 2852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:35,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7545 Valid, 8397 Invalid, 3013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 2852 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-08 07:48:35,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2025-03-08 07:48:35,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2441. [2025-03-08 07:48:35,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2429 states have (on average 1.4956772334293948) internal successors, (3633), 2429 states have internal predecessors, (3633), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3653 transitions. [2025-03-08 07:48:35,221 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3653 transitions. Word has length 686 [2025-03-08 07:48:35,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:35,222 INFO L471 AbstractCegarLoop]: Abstraction has 2441 states and 3653 transitions. [2025-03-08 07:48:35,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 07:48:35,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3653 transitions. [2025-03-08 07:48:35,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2025-03-08 07:48:35,226 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:35,227 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:35,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 07:48:35,227 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:35,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:35,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1962096031, now seen corresponding path program 1 times [2025-03-08 07:48:35,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:35,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050311035] [2025-03-08 07:48:35,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:35,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:35,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 687 statements into 1 equivalence classes. [2025-03-08 07:48:35,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 687 of 687 statements. [2025-03-08 07:48:35,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:35,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:36,291 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:36,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:36,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050311035] [2025-03-08 07:48:36,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050311035] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:36,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:36,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:36,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896354087] [2025-03-08 07:48:36,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:36,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:36,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:36,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:36,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:36,293 INFO L87 Difference]: Start difference. First operand 2441 states and 3653 transitions. Second operand has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 07:48:37,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:37,820 INFO L93 Difference]: Finished difference Result 4428 states and 6626 transitions. [2025-03-08 07:48:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:37,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 687 [2025-03-08 07:48:37,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:37,827 INFO L225 Difference]: With dead ends: 4428 [2025-03-08 07:48:37,828 INFO L226 Difference]: Without dead ends: 2441 [2025-03-08 07:48:37,830 INFO L434 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 [2025-03-08 07:48:37,830 INFO L435 NwaCegarLoop]: 2402 mSDtfsCounter, 6845 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6849 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 2506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:37,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6849 Valid, 4806 Invalid, 2506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-08 07:48:37,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2025-03-08 07:48:37,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2441. [2025-03-08 07:48:37,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2429 states have (on average 1.4952655413750515) internal successors, (3632), 2429 states have internal predecessors, (3632), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:37,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3652 transitions. [2025-03-08 07:48:37,908 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3652 transitions. Word has length 687 [2025-03-08 07:48:37,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:37,909 INFO L471 AbstractCegarLoop]: Abstraction has 2441 states and 3652 transitions. [2025-03-08 07:48:37,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 07:48:37,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3652 transitions. [2025-03-08 07:48:37,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2025-03-08 07:48:37,918 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:37,919 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:37,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 07:48:37,919 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:37,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:37,923 INFO L85 PathProgramCache]: Analyzing trace with hash 395074385, now seen corresponding path program 1 times [2025-03-08 07:48:37,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:37,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176946715] [2025-03-08 07:48:37,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:37,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:38,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 688 statements into 1 equivalence classes. [2025-03-08 07:48:38,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 688 of 688 statements. [2025-03-08 07:48:38,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:38,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:39,351 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:39,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:39,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176946715] [2025-03-08 07:48:39,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176946715] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:39,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:39,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:39,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88671767] [2025-03-08 07:48:39,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:39,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:39,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:39,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:39,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:39,354 INFO L87 Difference]: Start difference. First operand 2441 states and 3652 transitions. Second operand has 5 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 07:48:40,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:40,602 INFO L93 Difference]: Finished difference Result 4428 states and 6624 transitions. [2025-03-08 07:48:40,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:40,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 688 [2025-03-08 07:48:40,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:40,609 INFO L225 Difference]: With dead ends: 4428 [2025-03-08 07:48:40,609 INFO L226 Difference]: Without dead ends: 2441 [2025-03-08 07:48:40,611 INFO L434 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 [2025-03-08 07:48:40,611 INFO L435 NwaCegarLoop]: 2402 mSDtfsCounter, 6653 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 2503 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6657 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 2504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:40,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6657 Valid, 4806 Invalid, 2504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2503 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-08 07:48:40,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2025-03-08 07:48:40,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2441. [2025-03-08 07:48:40,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2429 states have (on average 1.4948538493207082) internal successors, (3631), 2429 states have internal predecessors, (3631), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:40,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3651 transitions. [2025-03-08 07:48:40,638 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3651 transitions. Word has length 688 [2025-03-08 07:48:40,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:40,638 INFO L471 AbstractCegarLoop]: Abstraction has 2441 states and 3651 transitions. [2025-03-08 07:48:40,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 07:48:40,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3651 transitions. [2025-03-08 07:48:40,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2025-03-08 07:48:40,643 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:40,643 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:40,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 07:48:40,643 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:40,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:40,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1907723274, now seen corresponding path program 1 times [2025-03-08 07:48:40,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:40,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842751785] [2025-03-08 07:48:40,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:40,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:40,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 689 statements into 1 equivalence classes. [2025-03-08 07:48:40,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 689 of 689 statements. [2025-03-08 07:48:40,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:40,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:41,856 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:41,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:41,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842751785] [2025-03-08 07:48:41,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842751785] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:41,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:41,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:41,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34354783] [2025-03-08 07:48:41,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:41,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:41,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:41,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:41,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:41,860 INFO L87 Difference]: Start difference. First operand 2441 states and 3651 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 07:48:43,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:43,086 INFO L93 Difference]: Finished difference Result 4428 states and 6622 transitions. [2025-03-08 07:48:43,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:43,087 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 689 [2025-03-08 07:48:43,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:43,092 INFO L225 Difference]: With dead ends: 4428 [2025-03-08 07:48:43,092 INFO L226 Difference]: Without dead ends: 2441 [2025-03-08 07:48:43,094 INFO L434 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 [2025-03-08 07:48:43,095 INFO L435 NwaCegarLoop]: 2402 mSDtfsCounter, 6461 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6465 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 2502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:43,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6465 Valid, 4806 Invalid, 2502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-08 07:48:43,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2025-03-08 07:48:43,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2441. [2025-03-08 07:48:43,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2429 states have (on average 1.4944421572663649) internal successors, (3630), 2429 states have internal predecessors, (3630), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:43,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3650 transitions. [2025-03-08 07:48:43,123 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3650 transitions. Word has length 689 [2025-03-08 07:48:43,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:43,123 INFO L471 AbstractCegarLoop]: Abstraction has 2441 states and 3650 transitions. [2025-03-08 07:48:43,124 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 07:48:43,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3650 transitions. [2025-03-08 07:48:43,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2025-03-08 07:48:43,130 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:43,130 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:43,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 07:48:43,130 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:43,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:43,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1445857316, now seen corresponding path program 1 times [2025-03-08 07:48:43,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:43,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794885299] [2025-03-08 07:48:43,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:43,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:43,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 690 statements into 1 equivalence classes. [2025-03-08 07:48:43,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 690 of 690 statements. [2025-03-08 07:48:43,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:43,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:44,180 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:44,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:44,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794885299] [2025-03-08 07:48:44,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794885299] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:44,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:44,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 07:48:44,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657693572] [2025-03-08 07:48:44,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:44,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 07:48:44,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:44,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 07:48:44,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 07:48:44,187 INFO L87 Difference]: Start difference. First operand 2441 states and 3650 transitions. Second operand has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:45,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:45,210 INFO L93 Difference]: Finished difference Result 4430 states and 6623 transitions. [2025-03-08 07:48:45,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:45,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 690 [2025-03-08 07:48:45,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:45,218 INFO L225 Difference]: With dead ends: 4430 [2025-03-08 07:48:45,218 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:48:45,220 INFO L434 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 [2025-03-08 07:48:45,221 INFO L435 NwaCegarLoop]: 3044 mSDtfsCounter, 0 mSDsluCounter, 6080 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9124 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:45,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9124 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 07:48:45,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:48:45,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:48:45,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4940353763883176) internal successors, (3632), 2431 states have internal predecessors, (3632), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:45,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3652 transitions. [2025-03-08 07:48:45,256 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3652 transitions. Word has length 690 [2025-03-08 07:48:45,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:45,257 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3652 transitions. [2025-03-08 07:48:45,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:45,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3652 transitions. [2025-03-08 07:48:45,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2025-03-08 07:48:45,264 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:45,264 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:45,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 07:48:45,264 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:45,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:45,265 INFO L85 PathProgramCache]: Analyzing trace with hash 59607428, now seen corresponding path program 1 times [2025-03-08 07:48:45,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:45,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718046576] [2025-03-08 07:48:45,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:45,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:45,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 691 statements into 1 equivalence classes. [2025-03-08 07:48:45,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 691 of 691 statements. [2025-03-08 07:48:45,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:45,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:46,625 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:46,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:46,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718046576] [2025-03-08 07:48:46,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718046576] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:46,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:46,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 07:48:46,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066360454] [2025-03-08 07:48:46,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:46,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 07:48:46,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:46,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 07:48:46,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 07:48:46,627 INFO L87 Difference]: Start difference. First operand 2443 states and 3652 transitions. Second operand has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:47,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:47,407 INFO L93 Difference]: Finished difference Result 4432 states and 6624 transitions. [2025-03-08 07:48:47,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:47,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 691 [2025-03-08 07:48:47,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:47,413 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:48:47,413 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:48:47,415 INFO L434 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 [2025-03-08 07:48:47,415 INFO L435 NwaCegarLoop]: 2932 mSDtfsCounter, 3082 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3082 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:47,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3082 Valid, 5866 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 07:48:47,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:48:47,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:48:47,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4936240230357878) internal successors, (3631), 2431 states have internal predecessors, (3631), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:47,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3651 transitions. [2025-03-08 07:48:47,441 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3651 transitions. Word has length 691 [2025-03-08 07:48:47,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:47,441 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3651 transitions. [2025-03-08 07:48:47,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3651 transitions. [2025-03-08 07:48:47,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2025-03-08 07:48:47,445 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:47,446 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:47,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 07:48:47,446 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:47,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:47,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1891466056, now seen corresponding path program 1 times [2025-03-08 07:48:47,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:47,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255821387] [2025-03-08 07:48:47,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:47,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:47,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 692 statements into 1 equivalence classes. [2025-03-08 07:48:47,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 692 of 692 statements. [2025-03-08 07:48:47,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:47,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:48,627 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:48,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:48,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255821387] [2025-03-08 07:48:48,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255821387] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:48,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:48,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:48,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984564254] [2025-03-08 07:48:48,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:48,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:48,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:48,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:48,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:48,630 INFO L87 Difference]: Start difference. First operand 2443 states and 3651 transitions. Second operand has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:49,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:49,562 INFO L93 Difference]: Finished difference Result 4794 states and 7162 transitions. [2025-03-08 07:48:49,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 07:48:49,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 692 [2025-03-08 07:48:49,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:49,569 INFO L225 Difference]: With dead ends: 4794 [2025-03-08 07:48:49,569 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:48:49,571 INFO L434 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 [2025-03-08 07:48:49,571 INFO L435 NwaCegarLoop]: 3023 mSDtfsCounter, 4137 mSDsluCounter, 5966 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4137 SdHoareTripleChecker+Valid, 8989 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:49,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4137 Valid, 8989 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 07:48:49,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:48:49,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:48:49,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.493212669683258) internal successors, (3630), 2431 states have internal predecessors, (3630), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:49,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3650 transitions. [2025-03-08 07:48:49,595 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3650 transitions. Word has length 692 [2025-03-08 07:48:49,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:49,596 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3650 transitions. [2025-03-08 07:48:49,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:49,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3650 transitions. [2025-03-08 07:48:49,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2025-03-08 07:48:49,600 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:49,600 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:49,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 07:48:49,600 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:49,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:49,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1305509227, now seen corresponding path program 1 times [2025-03-08 07:48:49,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:49,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131546963] [2025-03-08 07:48:49,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:49,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:49,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 693 statements into 1 equivalence classes. [2025-03-08 07:48:49,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 693 of 693 statements. [2025-03-08 07:48:49,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:49,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:50,359 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:50,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:50,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131546963] [2025-03-08 07:48:50,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131546963] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:50,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:50,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:50,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934377466] [2025-03-08 07:48:50,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:50,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:50,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:50,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:50,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:50,362 INFO L87 Difference]: Start difference. First operand 2443 states and 3650 transitions. Second operand has 5 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:51,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:51,130 INFO L93 Difference]: Finished difference Result 4432 states and 6620 transitions. [2025-03-08 07:48:51,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:51,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 693 [2025-03-08 07:48:51,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:51,136 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:48:51,136 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:48:51,138 INFO L434 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 [2025-03-08 07:48:51,138 INFO L435 NwaCegarLoop]: 2932 mSDtfsCounter, 3620 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3630 SdHoareTripleChecker+Valid, 5880 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:51,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3630 Valid, 5880 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1435 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 07:48:51,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:48:51,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:48:51,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.492801316330728) internal successors, (3629), 2431 states have internal predecessors, (3629), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:51,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3649 transitions. [2025-03-08 07:48:51,163 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3649 transitions. Word has length 693 [2025-03-08 07:48:51,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:51,163 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3649 transitions. [2025-03-08 07:48:51,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:51,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3649 transitions. [2025-03-08 07:48:51,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2025-03-08 07:48:51,168 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:51,168 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:51,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 07:48:51,168 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:51,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:51,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1084460643, now seen corresponding path program 1 times [2025-03-08 07:48:51,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:51,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372686466] [2025-03-08 07:48:51,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:51,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:51,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 694 statements into 1 equivalence classes. [2025-03-08 07:48:51,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 694 of 694 statements. [2025-03-08 07:48:51,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:51,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:52,248 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:52,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:52,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372686466] [2025-03-08 07:48:52,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372686466] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:52,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:52,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:52,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947725520] [2025-03-08 07:48:52,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:52,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:52,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:52,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:52,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:52,251 INFO L87 Difference]: Start difference. First operand 2443 states and 3649 transitions. Second operand has 5 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:52,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:52,999 INFO L93 Difference]: Finished difference Result 4432 states and 6618 transitions. [2025-03-08 07:48:53,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:53,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 694 [2025-03-08 07:48:53,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:53,005 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:48:53,005 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:48:53,007 INFO L434 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 [2025-03-08 07:48:53,007 INFO L435 NwaCegarLoop]: 2932 mSDtfsCounter, 6883 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6893 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:53,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6893 Valid, 5866 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 07:48:53,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:48:53,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:48:53,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4923899629781983) internal successors, (3628), 2431 states have internal predecessors, (3628), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:53,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3648 transitions. [2025-03-08 07:48:53,030 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3648 transitions. Word has length 694 [2025-03-08 07:48:53,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:53,030 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3648 transitions. [2025-03-08 07:48:53,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:53,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3648 transitions. [2025-03-08 07:48:53,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2025-03-08 07:48:53,035 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:53,035 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:53,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 07:48:53,035 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:53,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:53,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1195188762, now seen corresponding path program 1 times [2025-03-08 07:48:53,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:53,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741627944] [2025-03-08 07:48:53,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:53,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:53,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 695 statements into 1 equivalence classes. [2025-03-08 07:48:53,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 695 of 695 statements. [2025-03-08 07:48:53,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:53,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:53,829 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:53,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:53,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741627944] [2025-03-08 07:48:53,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741627944] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:53,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:53,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:53,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850716040] [2025-03-08 07:48:53,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:53,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:53,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:53,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:53,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:53,831 INFO L87 Difference]: Start difference. First operand 2443 states and 3648 transitions. Second operand has 5 states, 5 states have (on average 129.6) internal successors, (648), 5 states have internal predecessors, (648), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:54,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:54,702 INFO L93 Difference]: Finished difference Result 4432 states and 6616 transitions. [2025-03-08 07:48:54,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:54,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 129.6) internal successors, (648), 5 states have internal predecessors, (648), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 695 [2025-03-08 07:48:54,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:54,706 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:48:54,706 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:48:54,708 INFO L434 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 [2025-03-08 07:48:54,708 INFO L435 NwaCegarLoop]: 2932 mSDtfsCounter, 6875 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6885 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:54,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6885 Valid, 5866 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 07:48:54,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:48:54,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:48:54,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4919786096256684) internal successors, (3627), 2431 states have internal predecessors, (3627), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:54,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3647 transitions. [2025-03-08 07:48:54,728 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3647 transitions. Word has length 695 [2025-03-08 07:48:54,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:54,728 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3647 transitions. [2025-03-08 07:48:54,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.6) internal successors, (648), 5 states have internal predecessors, (648), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:54,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3647 transitions. [2025-03-08 07:48:54,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2025-03-08 07:48:54,732 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:54,732 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:54,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 07:48:54,732 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:54,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:54,733 INFO L85 PathProgramCache]: Analyzing trace with hash -967172862, now seen corresponding path program 1 times [2025-03-08 07:48:54,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:54,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519769467] [2025-03-08 07:48:54,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:54,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:54,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 696 statements into 1 equivalence classes. [2025-03-08 07:48:54,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 696 of 696 statements. [2025-03-08 07:48:54,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:54,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:55,545 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:55,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:55,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519769467] [2025-03-08 07:48:55,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519769467] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:55,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:55,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:55,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194596526] [2025-03-08 07:48:55,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:55,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:55,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:55,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:55,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:55,548 INFO L87 Difference]: Start difference. First operand 2443 states and 3647 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:56,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:56,361 INFO L93 Difference]: Finished difference Result 4432 states and 6614 transitions. [2025-03-08 07:48:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:56,361 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 696 [2025-03-08 07:48:56,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:56,365 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:48:56,365 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:48:56,367 INFO L434 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 [2025-03-08 07:48:56,367 INFO L435 NwaCegarLoop]: 2932 mSDtfsCounter, 6693 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6703 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:56,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6703 Valid, 5866 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 07:48:56,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:48:56,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:48:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4915672562731386) internal successors, (3626), 2431 states have internal predecessors, (3626), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:56,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3646 transitions. [2025-03-08 07:48:56,390 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3646 transitions. Word has length 696 [2025-03-08 07:48:56,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:56,391 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3646 transitions. [2025-03-08 07:48:56,391 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:56,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3646 transitions. [2025-03-08 07:48:56,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2025-03-08 07:48:56,394 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:56,394 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:56,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 07:48:56,395 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:56,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:56,395 INFO L85 PathProgramCache]: Analyzing trace with hash -103165064, now seen corresponding path program 1 times [2025-03-08 07:48:56,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:56,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746980329] [2025-03-08 07:48:56,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:56,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:56,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 697 statements into 1 equivalence classes. [2025-03-08 07:48:56,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 697 of 697 statements. [2025-03-08 07:48:56,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:56,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:57,581 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:57,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:57,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746980329] [2025-03-08 07:48:57,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746980329] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:57,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:57,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:57,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171567128] [2025-03-08 07:48:57,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:57,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:57,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:57,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:57,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:57,586 INFO L87 Difference]: Start difference. First operand 2443 states and 3646 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:58,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:58,581 INFO L93 Difference]: Finished difference Result 4432 states and 6612 transitions. [2025-03-08 07:48:58,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:58,582 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 697 [2025-03-08 07:48:58,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:58,586 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:48:58,586 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:48:58,588 INFO L434 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 [2025-03-08 07:48:58,588 INFO L435 NwaCegarLoop]: 2932 mSDtfsCounter, 3517 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3527 SdHoareTripleChecker+Valid, 5880 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:58,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3527 Valid, 5880 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 07:48:58,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:48:58,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:48:58,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4911559029206087) internal successors, (3625), 2431 states have internal predecessors, (3625), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:48:58,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3645 transitions. [2025-03-08 07:48:58,613 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3645 transitions. Word has length 697 [2025-03-08 07:48:58,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:58,613 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3645 transitions. [2025-03-08 07:48:58,614 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:48:58,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3645 transitions. [2025-03-08 07:48:58,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2025-03-08 07:48:58,617 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:58,617 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:48:58,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 07:48:58,618 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:58,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:58,618 INFO L85 PathProgramCache]: Analyzing trace with hash -150903011, now seen corresponding path program 1 times [2025-03-08 07:48:58,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:58,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661302256] [2025-03-08 07:48:58,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:58,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:58,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 698 statements into 1 equivalence classes. [2025-03-08 07:48:58,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 698 of 698 statements. [2025-03-08 07:48:58,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:58,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:59,415 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:48:59,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:59,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661302256] [2025-03-08 07:48:59,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661302256] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:59,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:59,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:59,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952831906] [2025-03-08 07:48:59,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:59,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:59,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:59,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:59,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:59,416 INFO L87 Difference]: Start difference. First operand 2443 states and 3645 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:00,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:49:00,217 INFO L93 Difference]: Finished difference Result 4432 states and 6610 transitions. [2025-03-08 07:49:00,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:49:00,218 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 698 [2025-03-08 07:49:00,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:49:00,221 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:49:00,221 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:49:00,223 INFO L434 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 [2025-03-08 07:49:00,223 INFO L435 NwaCegarLoop]: 2932 mSDtfsCounter, 6677 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6687 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 07:49:00,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6687 Valid, 5866 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 07:49:00,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:49:00,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:49:00,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.490744549568079) internal successors, (3624), 2431 states have internal predecessors, (3624), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:49:00,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3644 transitions. [2025-03-08 07:49:00,244 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3644 transitions. Word has length 698 [2025-03-08 07:49:00,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:49:00,244 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3644 transitions. [2025-03-08 07:49:00,245 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:00,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3644 transitions. [2025-03-08 07:49:00,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2025-03-08 07:49:00,248 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:49:00,248 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:49:00,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 07:49:00,248 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:49:00,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:49:00,249 INFO L85 PathProgramCache]: Analyzing trace with hash -662053325, now seen corresponding path program 1 times [2025-03-08 07:49:00,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:49:00,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111626996] [2025-03-08 07:49:00,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:49:00,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:49:00,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 699 statements into 1 equivalence classes. [2025-03-08 07:49:00,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 699 of 699 statements. [2025-03-08 07:49:00,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:49:00,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:49:01,195 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:49:01,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:49:01,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111626996] [2025-03-08 07:49:01,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111626996] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:49:01,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:49:01,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:49:01,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126761343] [2025-03-08 07:49:01,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:49:01,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:49:01,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:49:01,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:49:01,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:49:01,198 INFO L87 Difference]: Start difference. First operand 2443 states and 3644 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:01,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:49:01,952 INFO L93 Difference]: Finished difference Result 4432 states and 6608 transitions. [2025-03-08 07:49:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:49:01,953 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 699 [2025-03-08 07:49:01,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:49:01,956 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:49:01,956 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:49:01,958 INFO L434 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 [2025-03-08 07:49:01,958 INFO L435 NwaCegarLoop]: 2932 mSDtfsCounter, 3509 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3519 SdHoareTripleChecker+Valid, 5880 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 07:49:01,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3519 Valid, 5880 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 07:49:01,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:49:01,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:49:01,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.490333196215549) internal successors, (3623), 2431 states have internal predecessors, (3623), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:49:01,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3643 transitions. [2025-03-08 07:49:01,978 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3643 transitions. Word has length 699 [2025-03-08 07:49:01,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:49:01,979 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3643 transitions. [2025-03-08 07:49:01,979 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:01,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3643 transitions. [2025-03-08 07:49:01,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2025-03-08 07:49:01,982 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:49:01,983 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:49:01,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 07:49:01,983 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:49:01,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:49:01,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1289923256, now seen corresponding path program 1 times [2025-03-08 07:49:01,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:49:01,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631620376] [2025-03-08 07:49:01,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:49:01,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:49:02,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 700 statements into 1 equivalence classes. [2025-03-08 07:49:02,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 700 of 700 statements. [2025-03-08 07:49:02,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:49:02,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:49:02,804 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:49:02,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:49:02,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631620376] [2025-03-08 07:49:02,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631620376] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:49:02,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:49:02,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:49:02,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504243406] [2025-03-08 07:49:02,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:49:02,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:49:02,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:49:02,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:49:02,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:49:02,806 INFO L87 Difference]: Start difference. First operand 2443 states and 3643 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:03,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:49:03,539 INFO L93 Difference]: Finished difference Result 4432 states and 6606 transitions. [2025-03-08 07:49:03,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:49:03,539 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 700 [2025-03-08 07:49:03,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:49:03,543 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:49:03,543 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:49:03,544 INFO L434 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 [2025-03-08 07:49:03,545 INFO L435 NwaCegarLoop]: 2932 mSDtfsCounter, 3418 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3428 SdHoareTripleChecker+Valid, 5880 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 07:49:03,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3428 Valid, 5880 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 07:49:03,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:49:03,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:49:03,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4899218428630194) internal successors, (3622), 2431 states have internal predecessors, (3622), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:49:03,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3642 transitions. [2025-03-08 07:49:03,565 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3642 transitions. Word has length 700 [2025-03-08 07:49:03,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:49:03,565 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3642 transitions. [2025-03-08 07:49:03,566 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:03,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3642 transitions. [2025-03-08 07:49:03,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2025-03-08 07:49:03,569 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:49:03,569 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:49:03,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-08 07:49:03,569 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:49:03,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:49:03,570 INFO L85 PathProgramCache]: Analyzing trace with hash -618480075, now seen corresponding path program 1 times [2025-03-08 07:49:03,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:49:03,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764138795] [2025-03-08 07:49:03,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:49:03,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:49:03,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 701 statements into 1 equivalence classes. [2025-03-08 07:49:04,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 701 of 701 statements. [2025-03-08 07:49:04,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:49:04,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:49:04,617 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:49:04,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:49:04,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764138795] [2025-03-08 07:49:04,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764138795] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:49:04,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:49:04,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:49:04,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430995216] [2025-03-08 07:49:04,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:49:04,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:49:04,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:49:04,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:49:04,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:49:04,619 INFO L87 Difference]: Start difference. First operand 2443 states and 3642 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:05,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:49:05,333 INFO L93 Difference]: Finished difference Result 4432 states and 6604 transitions. [2025-03-08 07:49:05,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:49:05,333 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 701 [2025-03-08 07:49:05,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:49:05,337 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:49:05,337 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:49:05,338 INFO L434 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 [2025-03-08 07:49:05,339 INFO L435 NwaCegarLoop]: 2932 mSDtfsCounter, 6479 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6489 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 07:49:05,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6489 Valid, 5866 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 07:49:05,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:49:05,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:49:05,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4895104895104896) internal successors, (3621), 2431 states have internal predecessors, (3621), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:49:05,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3641 transitions. [2025-03-08 07:49:05,357 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3641 transitions. Word has length 701 [2025-03-08 07:49:05,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:49:05,358 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3641 transitions. [2025-03-08 07:49:05,358 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:05,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3641 transitions. [2025-03-08 07:49:05,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2025-03-08 07:49:05,361 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:49:05,361 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:49:05,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-08 07:49:05,361 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:49:05,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:49:05,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1337984605, now seen corresponding path program 1 times [2025-03-08 07:49:05,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:49:05,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999743211] [2025-03-08 07:49:05,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:49:05,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:49:05,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 702 statements into 1 equivalence classes. [2025-03-08 07:49:05,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 702 of 702 statements. [2025-03-08 07:49:05,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:49:05,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:49:06,304 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:49:06,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:49:06,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999743211] [2025-03-08 07:49:06,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999743211] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:49:06,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:49:06,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:49:06,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851067351] [2025-03-08 07:49:06,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:49:06,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:49:06,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:49:06,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:49:06,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:49:06,307 INFO L87 Difference]: Start difference. First operand 2443 states and 3641 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:07,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:49:07,056 INFO L93 Difference]: Finished difference Result 4432 states and 6602 transitions. [2025-03-08 07:49:07,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:49:07,056 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 702 [2025-03-08 07:49:07,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:49:07,060 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:49:07,060 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:49:07,062 INFO L434 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 [2025-03-08 07:49:07,062 INFO L435 NwaCegarLoop]: 2932 mSDtfsCounter, 6471 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6481 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 07:49:07,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6481 Valid, 5866 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 07:49:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:49:07,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:49:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4890991361579597) internal successors, (3620), 2431 states have internal predecessors, (3620), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:49:07,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3640 transitions. [2025-03-08 07:49:07,081 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3640 transitions. Word has length 702 [2025-03-08 07:49:07,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:49:07,081 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3640 transitions. [2025-03-08 07:49:07,081 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:07,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3640 transitions. [2025-03-08 07:49:07,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2025-03-08 07:49:07,084 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:49:07,084 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:49:07,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-08 07:49:07,085 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:49:07,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:49:07,085 INFO L85 PathProgramCache]: Analyzing trace with hash 957082746, now seen corresponding path program 1 times [2025-03-08 07:49:07,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:49:07,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509940923] [2025-03-08 07:49:07,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:49:07,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:49:07,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 703 statements into 1 equivalence classes. [2025-03-08 07:49:07,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 703 of 703 statements. [2025-03-08 07:49:07,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:49:07,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:49:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:49:08,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:49:08,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509940923] [2025-03-08 07:49:08,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509940923] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:49:08,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:49:08,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 07:49:08,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62689756] [2025-03-08 07:49:08,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:49:08,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 07:49:08,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:49:08,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 07:49:08,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 07:49:08,285 INFO L87 Difference]: Start difference. First operand 2443 states and 3640 transitions. Second operand has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:09,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:49:09,231 INFO L93 Difference]: Finished difference Result 4432 states and 6600 transitions. [2025-03-08 07:49:09,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:49:09,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 703 [2025-03-08 07:49:09,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:49:09,236 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:49:09,236 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:49:09,239 INFO L434 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 [2025-03-08 07:49:09,239 INFO L435 NwaCegarLoop]: 2824 mSDtfsCounter, 3046 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 1631 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3046 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 07:49:09,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3046 Valid, 5650 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1631 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 07:49:09,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:49:09,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:49:09,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.48868778280543) internal successors, (3619), 2431 states have internal predecessors, (3619), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:49:09,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3639 transitions. [2025-03-08 07:49:09,272 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3639 transitions. Word has length 703 [2025-03-08 07:49:09,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:49:09,273 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3639 transitions. [2025-03-08 07:49:09,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:09,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3639 transitions. [2025-03-08 07:49:09,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2025-03-08 07:49:09,280 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:49:09,280 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:49:09,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-08 07:49:09,281 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:49:09,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:49:09,281 INFO L85 PathProgramCache]: Analyzing trace with hash 892731236, now seen corresponding path program 1 times [2025-03-08 07:49:09,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:49:09,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391558420] [2025-03-08 07:49:09,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:49:09,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:49:09,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 704 statements into 1 equivalence classes. [2025-03-08 07:49:09,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 704 of 704 statements. [2025-03-08 07:49:09,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:49:09,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:49:10,173 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:49:10,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:49:10,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391558420] [2025-03-08 07:49:10,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391558420] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:49:10,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:49:10,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:49:10,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563784380] [2025-03-08 07:49:10,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:49:10,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:49:10,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:49:10,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:49:10,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:49:10,175 INFO L87 Difference]: Start difference. First operand 2443 states and 3639 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:11,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:49:11,128 INFO L93 Difference]: Finished difference Result 4782 states and 7112 transitions. [2025-03-08 07:49:11,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 07:49:11,128 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 704 [2025-03-08 07:49:11,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:49:11,131 INFO L225 Difference]: With dead ends: 4782 [2025-03-08 07:49:11,131 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:49:11,132 INFO L434 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 [2025-03-08 07:49:11,133 INFO L435 NwaCegarLoop]: 3001 mSDtfsCounter, 4029 mSDsluCounter, 5836 mSDsCounter, 0 mSdLazyCounter, 2078 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4029 SdHoareTripleChecker+Valid, 8837 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 07:49:11,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4029 Valid, 8837 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2078 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 07:49:11,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:49:11,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:49:11,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4882764294529) internal successors, (3618), 2431 states have internal predecessors, (3618), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:49:11,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3638 transitions. [2025-03-08 07:49:11,151 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3638 transitions. Word has length 704 [2025-03-08 07:49:11,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:49:11,152 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3638 transitions. [2025-03-08 07:49:11,152 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:11,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3638 transitions. [2025-03-08 07:49:11,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2025-03-08 07:49:11,155 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:49:11,155 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:49:11,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-08 07:49:11,155 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:49:11,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:49:11,156 INFO L85 PathProgramCache]: Analyzing trace with hash 760462721, now seen corresponding path program 1 times [2025-03-08 07:49:11,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:49:11,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123308665] [2025-03-08 07:49:11,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:49:11,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:49:11,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 705 statements into 1 equivalence classes. [2025-03-08 07:49:11,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 705 of 705 statements. [2025-03-08 07:49:11,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:49:11,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:49:12,091 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:49:12,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:49:12,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123308665] [2025-03-08 07:49:12,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123308665] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:49:12,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:49:12,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:49:12,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881491279] [2025-03-08 07:49:12,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:49:12,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:49:12,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:49:12,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:49:12,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:49:12,093 INFO L87 Difference]: Start difference. First operand 2443 states and 3638 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:13,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:49:13,044 INFO L93 Difference]: Finished difference Result 4432 states and 6596 transitions. [2025-03-08 07:49:13,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:49:13,045 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 705 [2025-03-08 07:49:13,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:49:13,047 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:49:13,047 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:49:13,049 INFO L434 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 [2025-03-08 07:49:13,050 INFO L435 NwaCegarLoop]: 2824 mSDtfsCounter, 6855 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6865 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 07:49:13,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6865 Valid, 5650 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 07:49:13,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:49:13,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:49:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4878650761003702) internal successors, (3617), 2431 states have internal predecessors, (3617), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:49:13,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3637 transitions. [2025-03-08 07:49:13,071 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3637 transitions. Word has length 705 [2025-03-08 07:49:13,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:49:13,071 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3637 transitions. [2025-03-08 07:49:13,071 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:13,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3637 transitions. [2025-03-08 07:49:13,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2025-03-08 07:49:13,075 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:49:13,076 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:49:13,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-08 07:49:13,077 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:49:13,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:49:13,078 INFO L85 PathProgramCache]: Analyzing trace with hash 191362121, now seen corresponding path program 1 times [2025-03-08 07:49:13,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:49:13,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68902922] [2025-03-08 07:49:13,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:49:13,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:49:13,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 706 statements into 1 equivalence classes. [2025-03-08 07:49:13,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 706 of 706 statements. [2025-03-08 07:49:13,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:49:13,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:49:13,887 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:49:13,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:49:13,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68902922] [2025-03-08 07:49:13,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68902922] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:49:13,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:49:13,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:49:13,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641074592] [2025-03-08 07:49:13,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:49:13,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:49:13,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:49:13,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:49:13,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:49:13,889 INFO L87 Difference]: Start difference. First operand 2443 states and 3637 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:14,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:49:14,702 INFO L93 Difference]: Finished difference Result 4432 states and 6594 transitions. [2025-03-08 07:49:14,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:49:14,702 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 706 [2025-03-08 07:49:14,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:49:14,704 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:49:14,705 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:49:14,706 INFO L434 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 [2025-03-08 07:49:14,706 INFO L435 NwaCegarLoop]: 2824 mSDtfsCounter, 3604 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 5664 SdHoareTripleChecker+Invalid, 1626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 07:49:14,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3614 Valid, 5664 Invalid, 1626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 07:49:14,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:49:14,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:49:14,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4874537227478404) internal successors, (3616), 2431 states have internal predecessors, (3616), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:49:14,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3636 transitions. [2025-03-08 07:49:14,726 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3636 transitions. Word has length 706 [2025-03-08 07:49:14,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:49:14,727 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3636 transitions. [2025-03-08 07:49:14,727 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:14,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3636 transitions. [2025-03-08 07:49:14,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2025-03-08 07:49:14,730 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:49:14,730 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:49:14,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-08 07:49:14,731 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:49:14,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:49:14,732 INFO L85 PathProgramCache]: Analyzing trace with hash -548776698, now seen corresponding path program 1 times [2025-03-08 07:49:14,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:49:14,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793419300] [2025-03-08 07:49:14,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:49:14,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:49:14,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 707 statements into 1 equivalence classes. [2025-03-08 07:49:14,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 707 of 707 statements. [2025-03-08 07:49:14,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:49:14,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:49:15,632 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:49:15,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:49:15,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793419300] [2025-03-08 07:49:15,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793419300] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:49:15,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:49:15,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:49:15,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658902829] [2025-03-08 07:49:15,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:49:15,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:49:15,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:49:15,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:49:15,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:49:15,634 INFO L87 Difference]: Start difference. First operand 2443 states and 3636 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:16,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:49:16,463 INFO L93 Difference]: Finished difference Result 4432 states and 6592 transitions. [2025-03-08 07:49:16,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:49:16,463 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 707 [2025-03-08 07:49:16,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:49:16,466 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:49:16,466 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:49:16,467 INFO L434 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 [2025-03-08 07:49:16,467 INFO L435 NwaCegarLoop]: 2824 mSDtfsCounter, 6839 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6849 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 1624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 07:49:16,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6849 Valid, 5650 Invalid, 1624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 07:49:16,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:49:16,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:49:16,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4870423693953105) internal successors, (3615), 2431 states have internal predecessors, (3615), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:49:16,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3635 transitions. [2025-03-08 07:49:16,486 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3635 transitions. Word has length 707 [2025-03-08 07:49:16,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:49:16,486 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3635 transitions. [2025-03-08 07:49:16,486 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:16,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3635 transitions. [2025-03-08 07:49:16,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2025-03-08 07:49:16,489 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:49:16,490 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:49:16,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-08 07:49:16,490 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:49:16,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:49:16,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1835292754, now seen corresponding path program 1 times [2025-03-08 07:49:16,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:49:16,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130699147] [2025-03-08 07:49:16,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:49:16,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:49:16,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 708 statements into 1 equivalence classes. [2025-03-08 07:49:16,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 708 of 708 statements. [2025-03-08 07:49:16,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:49:16,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:49:17,369 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:49:17,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:49:17,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130699147] [2025-03-08 07:49:17,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130699147] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:49:17,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:49:17,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:49:17,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680579102] [2025-03-08 07:49:17,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:49:17,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:49:17,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:49:17,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:49:17,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:49:17,370 INFO L87 Difference]: Start difference. First operand 2443 states and 3635 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:18,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:49:18,149 INFO L93 Difference]: Finished difference Result 4432 states and 6590 transitions. [2025-03-08 07:49:18,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:49:18,149 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 708 [2025-03-08 07:49:18,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:49:18,152 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:49:18,152 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:49:18,154 INFO L434 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 [2025-03-08 07:49:18,154 INFO L435 NwaCegarLoop]: 2824 mSDtfsCounter, 3596 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3606 SdHoareTripleChecker+Valid, 5664 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 07:49:18,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3606 Valid, 5664 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 07:49:18,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:49:18,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:49:18,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4866310160427807) internal successors, (3614), 2431 states have internal predecessors, (3614), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:49:18,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3634 transitions. [2025-03-08 07:49:18,176 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3634 transitions. Word has length 708 [2025-03-08 07:49:18,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:49:18,177 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3634 transitions. [2025-03-08 07:49:18,177 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:18,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3634 transitions. [2025-03-08 07:49:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2025-03-08 07:49:18,180 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:49:18,181 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:49:18,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-08 07:49:18,181 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:49:18,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:49:18,181 INFO L85 PathProgramCache]: Analyzing trace with hash -894799093, now seen corresponding path program 1 times [2025-03-08 07:49:18,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:49:18,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855096161] [2025-03-08 07:49:18,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:49:18,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:49:18,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 709 statements into 1 equivalence classes. [2025-03-08 07:49:18,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 709 of 709 statements. [2025-03-08 07:49:18,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:49:18,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:49:19,080 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:49:19,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:49:19,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855096161] [2025-03-08 07:49:19,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855096161] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:49:19,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:49:19,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:49:19,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559884214] [2025-03-08 07:49:19,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:49:19,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:49:19,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:49:19,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:49:19,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:49:19,082 INFO L87 Difference]: Start difference. First operand 2443 states and 3634 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:19,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:49:19,936 INFO L93 Difference]: Finished difference Result 4432 states and 6588 transitions. [2025-03-08 07:49:19,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:49:19,937 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 709 [2025-03-08 07:49:19,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:49:19,939 INFO L225 Difference]: With dead ends: 4432 [2025-03-08 07:49:19,939 INFO L226 Difference]: Without dead ends: 2443 [2025-03-08 07:49:19,941 INFO L434 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 [2025-03-08 07:49:19,941 INFO L435 NwaCegarLoop]: 2824 mSDtfsCounter, 3592 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3602 SdHoareTripleChecker+Valid, 5664 SdHoareTripleChecker+Invalid, 1620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 07:49:19,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3602 Valid, 5664 Invalid, 1620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 07:49:19,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-08 07:49:19,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2443. [2025-03-08 07:49:19,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2431 states have (on average 1.4862196626902509) internal successors, (3613), 2431 states have internal predecessors, (3613), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 07:49:19,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3633 transitions. [2025-03-08 07:49:19,959 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3633 transitions. Word has length 709 [2025-03-08 07:49:19,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:49:19,960 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3633 transitions. [2025-03-08 07:49:19,960 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-08 07:49:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3633 transitions. [2025-03-08 07:49:19,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2025-03-08 07:49:19,963 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:49:19,963 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:49:19,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-08 07:49:19,963 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:49:19,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:49:19,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1210276243, now seen corresponding path program 1 times [2025-03-08 07:49:19,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:49:19,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940331655] [2025-03-08 07:49:19,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:49:19,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:49:20,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 710 statements into 1 equivalence classes. [2025-03-08 07:49:20,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 710 of 710 statements. [2025-03-08 07:49:20,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:49:20,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:49:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 07:49:20,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:49:20,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940331655] [2025-03-08 07:49:20,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940331655] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:49:20,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:49:20,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:49:20,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296360943] [2025-03-08 07:49:20,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:49:20,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:49:20,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:49:20,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:49:20,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:49:20,888 INFO L87 Difference]: Start difference. First operand 2443 states and 3633 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10)