./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d64_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_n2_w32_d64_e0.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1f3110129f503467943c957ebfc9675cb194747bc699625673406e1f5b2f7531 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 07:46:50,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 07:46:50,768 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 07:46:50,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 07:46:50,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 07:46:50,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 07:46:50,787 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 07:46:50,787 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 07:46:50,787 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 07:46:50,787 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 07:46:50,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 07:46:50,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 07:46:50,787 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 07:46:50,787 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 07:46:50,787 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 07:46:50,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 07:46:50,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 07:46:50,787 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 07:46:50,787 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 07:46:50,788 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 07:46:50,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 07:46:50,788 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 07:46:50,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 07:46:50,790 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 07:46:50,790 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 07:46:50,790 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 07:46:50,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 07:46:50,790 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 -> 1f3110129f503467943c957ebfc9675cb194747bc699625673406e1f5b2f7531 [2025-03-08 07:46:51,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 07:46:51,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 07:46:51,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 07:46:51,012 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 07:46:51,012 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 07:46:51,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d64_e0.c [2025-03-08 07:46:52,127 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b51fc45/72d297a4f89f4ce6bf8b93766b33561e/FLAG871b3fa03 [2025-03-08 07:46:52,585 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 07:46:52,586 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d64_e0.c [2025-03-08 07:46:52,616 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b51fc45/72d297a4f89f4ce6bf8b93766b33561e/FLAG871b3fa03 [2025-03-08 07:46:52,709 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b51fc45/72d297a4f89f4ce6bf8b93766b33561e [2025-03-08 07:46:52,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 07:46:52,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 07:46:52,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 07:46:52,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 07:46:52,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 07:46:52,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 07:46:52" (1/1) ... [2025-03-08 07:46:52,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373f1443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:52, skipping insertion in model container [2025-03-08 07:46:52,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 07:46:52" (1/1) ... [2025-03-08 07:46:52,786 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 07:46:52,951 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_n2_w32_d64_e0.c[1271,1284] [2025-03-08 07:46:53,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 07:46:53,349 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 07:46:53,356 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_n2_w32_d64_e0.c[1271,1284] [2025-03-08 07:46:53,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 07:46:53,583 INFO L204 MainTranslator]: Completed translation [2025-03-08 07:46:53,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53 WrapperNode [2025-03-08 07:46:53,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 07:46:53,585 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 07:46:53,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 07:46:53,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 07:46:53,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53" (1/1) ... [2025-03-08 07:46:53,642 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53" (1/1) ... [2025-03-08 07:46:54,250 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 10630 [2025-03-08 07:46:54,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 07:46:54,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 07:46:54,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 07:46:54,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 07:46:54,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53" (1/1) ... [2025-03-08 07:46:54,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53" (1/1) ... [2025-03-08 07:46:54,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53" (1/1) ... [2025-03-08 07:46:54,566 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 07:46:54,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53" (1/1) ... [2025-03-08 07:46:54,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53" (1/1) ... [2025-03-08 07:46:54,680 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53" (1/1) ... [2025-03-08 07:46:54,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53" (1/1) ... [2025-03-08 07:46:54,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53" (1/1) ... [2025-03-08 07:46:54,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53" (1/1) ... [2025-03-08 07:46:54,904 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 07:46:54,906 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 07:46:54,906 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 07:46:54,907 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 07:46:54,907 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53" (1/1) ... [2025-03-08 07:46:54,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 07:46:54,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 07:46:54,930 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 07:46:54,932 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 07:46:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 07:46:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 07:46:54,946 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 07:46:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 07:46:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 07:46:54,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 07:46:55,467 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 07:46:55,468 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 07:47:09,673 INFO L? ?]: Removed 6100 outVars from TransFormulas that were not future-live. [2025-03-08 07:47:09,674 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 07:47:09,900 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 07:47:09,900 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 07:47:09,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 07:47:09 BoogieIcfgContainer [2025-03-08 07:47:09,900 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 07:47:09,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 07:47:09,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 07:47:09,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 07:47:09,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 07:46:52" (1/3) ... [2025-03-08 07:47:09,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b530413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 07:47:09, skipping insertion in model container [2025-03-08 07:47:09,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:46:53" (2/3) ... [2025-03-08 07:47:09,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b530413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 07:47:09, skipping insertion in model container [2025-03-08 07:47:09,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 07:47:09" (3/3) ... [2025-03-08 07:47:09,913 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n2_w32_d64_e0.c [2025-03-08 07:47:09,926 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 07:47:09,927 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.arbitrated_top_n2_w32_d64_e0.c that has 2 procedures, 2952 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 07:47:10,024 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 07:47:10,033 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;@ee0642, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 07:47:10,033 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 07:47:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 2952 states, 2942 states have (on average 1.4983004758667573) internal successors, (4408), 2943 states have internal predecessors, (4408), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:10,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2025-03-08 07:47:10,081 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:10,082 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:10,083 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:10,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:10,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1005905464, now seen corresponding path program 1 times [2025-03-08 07:47:10,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:10,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911478137] [2025-03-08 07:47:10,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:10,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:10,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 791 statements into 1 equivalence classes. [2025-03-08 07:47:10,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 791 of 791 statements. [2025-03-08 07:47:10,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:10,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:11,058 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-08 07:47:11,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:11,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911478137] [2025-03-08 07:47:11,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911478137] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 07:47:11,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129508152] [2025-03-08 07:47:11,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:11,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 07:47:11,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 07:47:11,062 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 07:47:11,064 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 07:47:11,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 791 statements into 1 equivalence classes. [2025-03-08 07:47:12,410 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 791 of 791 statements. [2025-03-08 07:47:12,410 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:12,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:12,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 4842 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 07:47:12,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 07:47:12,498 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-08 07:47:12,499 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 07:47:12,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129508152] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:12,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 07:47:12,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 07:47:12,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267524960] [2025-03-08 07:47:12,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:12,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 07:47:12,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:12,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 07:47:12,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 07:47:12,532 INFO L87 Difference]: Start difference. First operand has 2952 states, 2942 states have (on average 1.4983004758667573) internal successors, (4408), 2943 states have internal predecessors, (4408), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 380.5) internal successors, (761), 2 states have internal predecessors, (761), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-08 07:47:13,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:13,245 INFO L93 Difference]: Finished difference Result 5335 states and 8001 transitions. [2025-03-08 07:47:13,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 07:47:13,247 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 380.5) internal successors, (761), 2 states have internal predecessors, (761), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 791 [2025-03-08 07:47:13,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:13,273 INFO L225 Difference]: With dead ends: 5335 [2025-03-08 07:47:13,273 INFO L226 Difference]: Without dead ends: 2949 [2025-03-08 07:47:13,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 792 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 07:47:13,287 INFO L435 NwaCegarLoop]: 3686 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3686 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:13,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3686 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 07:47:13,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2025-03-08 07:47:13,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 2949. [2025-03-08 07:47:13,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2940 states have (on average 1.4976190476190476) internal successors, (4403), 2940 states have internal predecessors, (4403), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:13,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 4417 transitions. [2025-03-08 07:47:13,391 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 4417 transitions. Word has length 791 [2025-03-08 07:47:13,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:13,394 INFO L471 AbstractCegarLoop]: Abstraction has 2949 states and 4417 transitions. [2025-03-08 07:47:13,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 380.5) internal successors, (761), 2 states have internal predecessors, (761), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-08 07:47:13,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 4417 transitions. [2025-03-08 07:47:13,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2025-03-08 07:47:13,411 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:13,413 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:13,430 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 07:47:13,613 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 07:47:13,614 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:13,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:13,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1458399121, now seen corresponding path program 1 times [2025-03-08 07:47:13,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:13,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168227530] [2025-03-08 07:47:13,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:13,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:13,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 791 statements into 1 equivalence classes. [2025-03-08 07:47:14,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 791 of 791 statements. [2025-03-08 07:47:14,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:14,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:17,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:17,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168227530] [2025-03-08 07:47:17,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168227530] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:17,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:17,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 07:47:17,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652260146] [2025-03-08 07:47:17,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:17,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 07:47:17,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:17,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 07:47:17,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 07:47:17,955 INFO L87 Difference]: Start difference. First operand 2949 states and 4417 transitions. Second operand has 4 states, 4 states have (on average 189.75) internal successors, (759), 4 states have internal predecessors, (759), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:19,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:19,180 INFO L93 Difference]: Finished difference Result 2953 states and 4421 transitions. [2025-03-08 07:47:19,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:19,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 189.75) internal successors, (759), 4 states have internal predecessors, (759), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 791 [2025-03-08 07:47:19,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:19,192 INFO L225 Difference]: With dead ends: 2953 [2025-03-08 07:47:19,192 INFO L226 Difference]: Without dead ends: 2951 [2025-03-08 07:47:19,194 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 07:47:19,195 INFO L435 NwaCegarLoop]: 3684 mSDtfsCounter, 0 mSDsluCounter, 7363 mSDsCounter, 0 mSdLazyCounter, 2203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11047 SdHoareTripleChecker+Invalid, 2203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:19,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11047 Invalid, 2203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2203 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-08 07:47:19,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2025-03-08 07:47:19,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2951. [2025-03-08 07:47:19,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2951 states, 2942 states have (on average 1.4972807613868118) internal successors, (4405), 2942 states have internal predecessors, (4405), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:19,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2951 states to 2951 states and 4419 transitions. [2025-03-08 07:47:19,261 INFO L78 Accepts]: Start accepts. Automaton has 2951 states and 4419 transitions. Word has length 791 [2025-03-08 07:47:19,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:19,265 INFO L471 AbstractCegarLoop]: Abstraction has 2951 states and 4419 transitions. [2025-03-08 07:47:19,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 189.75) internal successors, (759), 4 states have internal predecessors, (759), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:19,266 INFO L276 IsEmpty]: Start isEmpty. Operand 2951 states and 4419 transitions. [2025-03-08 07:47:19,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2025-03-08 07:47:19,277 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:19,278 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:19,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 07:47:19,278 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:19,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:19,280 INFO L85 PathProgramCache]: Analyzing trace with hash -2029585847, now seen corresponding path program 1 times [2025-03-08 07:47:19,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:19,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614272091] [2025-03-08 07:47:19,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:19,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:19,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 792 statements into 1 equivalence classes. [2025-03-08 07:47:19,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 792 of 792 statements. [2025-03-08 07:47:19,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:19,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:20,857 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:20,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:20,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614272091] [2025-03-08 07:47:20,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614272091] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:20,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:20,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:20,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944337209] [2025-03-08 07:47:20,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:20,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:20,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:20,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:20,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:20,861 INFO L87 Difference]: Start difference. First operand 2951 states and 4419 transitions. Second operand has 5 states, 5 states have (on average 152.0) internal successors, (760), 5 states have internal predecessors, (760), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:23,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:23,254 INFO L93 Difference]: Finished difference Result 7375 states and 11047 transitions. [2025-03-08 07:47:23,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 07:47:23,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 152.0) internal successors, (760), 5 states have internal predecessors, (760), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 792 [2025-03-08 07:47:23,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:23,264 INFO L225 Difference]: With dead ends: 7375 [2025-03-08 07:47:23,264 INFO L226 Difference]: Without dead ends: 2951 [2025-03-08 07:47:23,268 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 07:47:23,271 INFO L435 NwaCegarLoop]: 3650 mSDtfsCounter, 9232 mSDsluCounter, 6656 mSDsCounter, 0 mSdLazyCounter, 3327 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9232 SdHoareTripleChecker+Valid, 10306 SdHoareTripleChecker+Invalid, 3502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 3327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:23,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9232 Valid, 10306 Invalid, 3502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 3327 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-08 07:47:23,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2025-03-08 07:47:23,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2951. [2025-03-08 07:47:23,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2951 states, 2942 states have (on average 1.4969408565601632) internal successors, (4404), 2942 states have internal predecessors, (4404), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:23,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2951 states to 2951 states and 4418 transitions. [2025-03-08 07:47:23,320 INFO L78 Accepts]: Start accepts. Automaton has 2951 states and 4418 transitions. Word has length 792 [2025-03-08 07:47:23,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:23,321 INFO L471 AbstractCegarLoop]: Abstraction has 2951 states and 4418 transitions. [2025-03-08 07:47:23,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 152.0) internal successors, (760), 5 states have internal predecessors, (760), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:23,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2951 states and 4418 transitions. [2025-03-08 07:47:23,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2025-03-08 07:47:23,326 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:23,326 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:23,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 07:47:23,327 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:23,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:23,327 INFO L85 PathProgramCache]: Analyzing trace with hash 2051525324, now seen corresponding path program 1 times [2025-03-08 07:47:23,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:23,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202101519] [2025-03-08 07:47:23,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:23,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:23,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 793 statements into 1 equivalence classes. [2025-03-08 07:47:23,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 793 of 793 statements. [2025-03-08 07:47:23,633 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:23,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:24,502 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:24,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:24,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202101519] [2025-03-08 07:47:24,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202101519] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:24,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:24,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:24,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263523633] [2025-03-08 07:47:24,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:24,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:24,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:24,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:24,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:24,505 INFO L87 Difference]: Start difference. First operand 2951 states and 4418 transitions. Second operand has 5 states, 5 states have (on average 152.2) internal successors, (761), 5 states have internal predecessors, (761), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:26,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:26,049 INFO L93 Difference]: Finished difference Result 5336 states and 7988 transitions. [2025-03-08 07:47:26,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:26,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 152.2) internal successors, (761), 5 states have internal predecessors, (761), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 793 [2025-03-08 07:47:26,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:26,059 INFO L225 Difference]: With dead ends: 5336 [2025-03-08 07:47:26,060 INFO L226 Difference]: Without dead ends: 2951 [2025-03-08 07:47:26,062 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 07:47:26,063 INFO L435 NwaCegarLoop]: 2984 mSDtfsCounter, 8050 mSDsluCounter, 2986 mSDsCounter, 0 mSdLazyCounter, 2868 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8057 SdHoareTripleChecker+Valid, 5970 SdHoareTripleChecker+Invalid, 2869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:26,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8057 Valid, 5970 Invalid, 2869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2868 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-08 07:47:26,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2025-03-08 07:47:26,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2951. [2025-03-08 07:47:26,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2951 states, 2942 states have (on average 1.4966009517335146) internal successors, (4403), 2942 states have internal predecessors, (4403), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:26,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2951 states to 2951 states and 4417 transitions. [2025-03-08 07:47:26,111 INFO L78 Accepts]: Start accepts. Automaton has 2951 states and 4417 transitions. Word has length 793 [2025-03-08 07:47:26,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:26,111 INFO L471 AbstractCegarLoop]: Abstraction has 2951 states and 4417 transitions. [2025-03-08 07:47:26,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 152.2) internal successors, (761), 5 states have internal predecessors, (761), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:26,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2951 states and 4417 transitions. [2025-03-08 07:47:26,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2025-03-08 07:47:26,117 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:26,117 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:26,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 07:47:26,117 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:26,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:26,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1718095300, now seen corresponding path program 1 times [2025-03-08 07:47:26,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:26,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519456569] [2025-03-08 07:47:26,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:26,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:26,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 794 statements into 1 equivalence classes. [2025-03-08 07:47:26,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 794 of 794 statements. [2025-03-08 07:47:26,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:26,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:27,458 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:27,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:27,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519456569] [2025-03-08 07:47:27,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519456569] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:27,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:27,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 07:47:27,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676712364] [2025-03-08 07:47:27,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:27,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 07:47:27,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:27,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 07:47:27,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 07:47:27,460 INFO L87 Difference]: Start difference. First operand 2951 states and 4417 transitions. Second operand has 4 states, 4 states have (on average 190.5) internal successors, (762), 4 states have internal predecessors, (762), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:28,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:28,322 INFO L93 Difference]: Finished difference Result 5338 states and 7989 transitions. [2025-03-08 07:47:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:28,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 190.5) internal successors, (762), 4 states have internal predecessors, (762), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 794 [2025-03-08 07:47:28,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:28,330 INFO L225 Difference]: With dead ends: 5338 [2025-03-08 07:47:28,330 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:28,333 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 07:47:28,334 INFO L435 NwaCegarLoop]: 3682 mSDtfsCounter, 0 mSDsluCounter, 7356 mSDsCounter, 0 mSdLazyCounter, 2206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11038 SdHoareTripleChecker+Invalid, 2206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:28,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11038 Invalid, 2206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2206 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 07:47:28,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:28,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:28,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4962635869565217) internal successors, (4405), 2944 states have internal predecessors, (4405), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:28,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4419 transitions. [2025-03-08 07:47:28,373 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4419 transitions. Word has length 794 [2025-03-08 07:47:28,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:28,375 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4419 transitions. [2025-03-08 07:47:28,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 190.5) internal successors, (762), 4 states have internal predecessors, (762), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:28,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4419 transitions. [2025-03-08 07:47:28,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2025-03-08 07:47:28,380 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:28,380 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:28,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 07:47:28,381 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:28,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:28,381 INFO L85 PathProgramCache]: Analyzing trace with hash -642108815, now seen corresponding path program 1 times [2025-03-08 07:47:28,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:28,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549684153] [2025-03-08 07:47:28,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:28,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:28,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 795 statements into 1 equivalence classes. [2025-03-08 07:47:28,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 795 of 795 statements. [2025-03-08 07:47:28,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:28,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:29,856 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:29,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:29,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549684153] [2025-03-08 07:47:29,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549684153] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:29,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:29,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 07:47:29,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960869945] [2025-03-08 07:47:29,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:29,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 07:47:29,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:29,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 07:47:29,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 07:47:29,859 INFO L87 Difference]: Start difference. First operand 2953 states and 4419 transitions. Second operand has 4 states, 4 states have (on average 190.75) internal successors, (763), 4 states have internal predecessors, (763), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:30,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:30,902 INFO L93 Difference]: Finished difference Result 5340 states and 7990 transitions. [2025-03-08 07:47:30,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:30,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 190.75) internal successors, (763), 4 states have internal predecessors, (763), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 795 [2025-03-08 07:47:30,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:30,910 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:30,910 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:30,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:47:30,914 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 4003 mSDsluCounter, 3418 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4003 SdHoareTripleChecker+Valid, 6834 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:30,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4003 Valid, 6834 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 07:47:30,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:30,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:30,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4959239130434783) internal successors, (4404), 2944 states have internal predecessors, (4404), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:30,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4418 transitions. [2025-03-08 07:47:30,950 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4418 transitions. Word has length 795 [2025-03-08 07:47:30,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:30,951 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4418 transitions. [2025-03-08 07:47:30,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 190.75) internal successors, (763), 4 states have internal predecessors, (763), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:30,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4418 transitions. [2025-03-08 07:47:30,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2025-03-08 07:47:30,957 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:30,957 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:30,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 07:47:30,958 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:30,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:30,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1131868199, now seen corresponding path program 1 times [2025-03-08 07:47:30,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:30,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86660651] [2025-03-08 07:47:30,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:30,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:31,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 796 statements into 1 equivalence classes. [2025-03-08 07:47:31,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 796 of 796 statements. [2025-03-08 07:47:31,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:31,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:31,931 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:31,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:31,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86660651] [2025-03-08 07:47:31,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86660651] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:31,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:31,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:31,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302135430] [2025-03-08 07:47:31,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:31,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:31,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:31,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:31,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:31,934 INFO L87 Difference]: Start difference. First operand 2953 states and 4418 transitions. Second operand has 5 states, 5 states have (on average 152.8) internal successors, (764), 5 states have internal predecessors, (764), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:32,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:32,995 INFO L93 Difference]: Finished difference Result 5340 states and 7988 transitions. [2025-03-08 07:47:32,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:32,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 152.8) internal successors, (764), 5 states have internal predecessors, (764), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 796 [2025-03-08 07:47:32,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:33,004 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:33,004 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:33,007 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 07:47:33,008 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 8391 mSDsluCounter, 3418 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8398 SdHoareTripleChecker+Valid, 6834 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:33,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8398 Valid, 6834 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 07:47:33,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:33,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:33,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4955842391304348) internal successors, (4403), 2944 states have internal predecessors, (4403), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:33,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4417 transitions. [2025-03-08 07:47:33,046 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4417 transitions. Word has length 796 [2025-03-08 07:47:33,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:33,047 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4417 transitions. [2025-03-08 07:47:33,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 152.8) internal successors, (764), 5 states have internal predecessors, (764), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:33,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4417 transitions. [2025-03-08 07:47:33,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2025-03-08 07:47:33,052 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:33,052 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:33,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 07:47:33,053 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:33,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:33,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1968791306, now seen corresponding path program 1 times [2025-03-08 07:47:33,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:33,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327738653] [2025-03-08 07:47:33,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:33,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:33,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 797 statements into 1 equivalence classes. [2025-03-08 07:47:33,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 797 of 797 statements. [2025-03-08 07:47:33,369 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:33,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:34,074 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:34,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:34,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327738653] [2025-03-08 07:47:34,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327738653] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:34,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:34,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:34,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458353884] [2025-03-08 07:47:34,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:34,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:34,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:34,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:34,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:34,076 INFO L87 Difference]: Start difference. First operand 2953 states and 4417 transitions. Second operand has 5 states, 5 states have (on average 153.0) internal successors, (765), 5 states have internal predecessors, (765), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:35,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:35,132 INFO L93 Difference]: Finished difference Result 5340 states and 7986 transitions. [2025-03-08 07:47:35,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:35,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 153.0) internal successors, (765), 5 states have internal predecessors, (765), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 797 [2025-03-08 07:47:35,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:35,139 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:35,139 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:35,141 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 07:47:35,142 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 4390 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4397 SdHoareTripleChecker+Valid, 6845 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:35,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4397 Valid, 6845 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1998 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 07:47:35,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:35,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:35,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4952445652173914) internal successors, (4402), 2944 states have internal predecessors, (4402), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:35,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4416 transitions. [2025-03-08 07:47:35,172 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4416 transitions. Word has length 797 [2025-03-08 07:47:35,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:35,173 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4416 transitions. [2025-03-08 07:47:35,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.0) internal successors, (765), 5 states have internal predecessors, (765), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:35,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4416 transitions. [2025-03-08 07:47:35,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2025-03-08 07:47:35,178 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:35,178 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:35,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 07:47:35,178 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:35,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:35,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1562939966, now seen corresponding path program 1 times [2025-03-08 07:47:35,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:35,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007513076] [2025-03-08 07:47:35,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:35,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:35,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 798 statements into 1 equivalence classes. [2025-03-08 07:47:35,496 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 798 of 798 statements. [2025-03-08 07:47:35,496 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:35,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:36,312 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:36,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:36,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007513076] [2025-03-08 07:47:36,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007513076] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:36,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:36,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:36,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886459251] [2025-03-08 07:47:36,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:36,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:36,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:36,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:36,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:36,315 INFO L87 Difference]: Start difference. First operand 2953 states and 4416 transitions. Second operand has 5 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:37,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:37,436 INFO L93 Difference]: Finished difference Result 5340 states and 7984 transitions. [2025-03-08 07:47:37,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:37,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 798 [2025-03-08 07:47:37,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:37,453 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:37,456 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:37,460 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 07:47:37,460 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 4386 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4393 SdHoareTripleChecker+Valid, 6845 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:37,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4393 Valid, 6845 Invalid, 1997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 07:47:37,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:37,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:37,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.494904891304348) internal successors, (4401), 2944 states have internal predecessors, (4401), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:37,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4415 transitions. [2025-03-08 07:47:37,501 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4415 transitions. Word has length 798 [2025-03-08 07:47:37,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:37,502 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4415 transitions. [2025-03-08 07:47:37,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:37,503 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4415 transitions. [2025-03-08 07:47:37,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2025-03-08 07:47:37,510 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:37,510 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:37,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 07:47:37,511 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:37,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:37,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1790252539, now seen corresponding path program 1 times [2025-03-08 07:47:37,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:37,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651617051] [2025-03-08 07:47:37,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:37,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:37,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 799 statements into 1 equivalence classes. [2025-03-08 07:47:37,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 799 of 799 statements. [2025-03-08 07:47:37,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:37,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:38,438 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:38,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:38,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651617051] [2025-03-08 07:47:38,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651617051] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:38,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:38,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:38,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837528222] [2025-03-08 07:47:38,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:38,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:38,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:38,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:38,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:38,440 INFO L87 Difference]: Start difference. First operand 2953 states and 4415 transitions. Second operand has 5 states, 5 states have (on average 153.4) internal successors, (767), 5 states have internal predecessors, (767), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:39,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:39,476 INFO L93 Difference]: Finished difference Result 5340 states and 7982 transitions. [2025-03-08 07:47:39,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:39,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 153.4) internal successors, (767), 5 states have internal predecessors, (767), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 799 [2025-03-08 07:47:39,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:39,482 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:39,482 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:39,484 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 07:47:39,485 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 8367 mSDsluCounter, 3418 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8374 SdHoareTripleChecker+Valid, 6834 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:39,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8374 Valid, 6834 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 07:47:39,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:39,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:39,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4945652173913044) internal successors, (4400), 2944 states have internal predecessors, (4400), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:39,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4414 transitions. [2025-03-08 07:47:39,512 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4414 transitions. Word has length 799 [2025-03-08 07:47:39,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:39,512 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4414 transitions. [2025-03-08 07:47:39,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.4) internal successors, (767), 5 states have internal predecessors, (767), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:39,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4414 transitions. [2025-03-08 07:47:39,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2025-03-08 07:47:39,575 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:39,576 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:39,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 07:47:39,576 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:39,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:39,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1413049565, now seen corresponding path program 1 times [2025-03-08 07:47:39,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:39,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910999299] [2025-03-08 07:47:39,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:39,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:39,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 800 statements into 1 equivalence classes. [2025-03-08 07:47:39,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 800 of 800 statements. [2025-03-08 07:47:39,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:39,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:40,524 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:40,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:40,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910999299] [2025-03-08 07:47:40,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910999299] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:40,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:40,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:40,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924978335] [2025-03-08 07:47:40,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:40,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:40,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:40,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:40,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:40,526 INFO L87 Difference]: Start difference. First operand 2953 states and 4414 transitions. Second operand has 5 states, 5 states have (on average 153.6) internal successors, (768), 5 states have internal predecessors, (768), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:41,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:41,557 INFO L93 Difference]: Finished difference Result 5340 states and 7980 transitions. [2025-03-08 07:47:41,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:41,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 153.6) internal successors, (768), 5 states have internal predecessors, (768), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 800 [2025-03-08 07:47:41,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:41,563 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:41,563 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:41,565 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 07:47:41,565 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 4378 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4385 SdHoareTripleChecker+Valid, 6845 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:41,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4385 Valid, 6845 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 07:47:41,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:41,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:41,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.494225543478261) internal successors, (4399), 2944 states have internal predecessors, (4399), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:41,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4413 transitions. [2025-03-08 07:47:41,591 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4413 transitions. Word has length 800 [2025-03-08 07:47:41,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:41,591 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4413 transitions. [2025-03-08 07:47:41,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.6) internal successors, (768), 5 states have internal predecessors, (768), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:41,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4413 transitions. [2025-03-08 07:47:41,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2025-03-08 07:47:41,596 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:41,596 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:41,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 07:47:41,596 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:41,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:41,597 INFO L85 PathProgramCache]: Analyzing trace with hash 64868736, now seen corresponding path program 1 times [2025-03-08 07:47:41,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:41,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211436416] [2025-03-08 07:47:41,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:41,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:41,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 801 statements into 1 equivalence classes. [2025-03-08 07:47:41,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 801 of 801 statements. [2025-03-08 07:47:41,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:41,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:42,587 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:42,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:42,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211436416] [2025-03-08 07:47:42,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211436416] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:42,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:42,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:42,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131077777] [2025-03-08 07:47:42,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:42,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:42,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:42,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:42,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:42,589 INFO L87 Difference]: Start difference. First operand 2953 states and 4413 transitions. Second operand has 5 states, 5 states have (on average 153.8) internal successors, (769), 5 states have internal predecessors, (769), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:43,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:43,617 INFO L93 Difference]: Finished difference Result 5340 states and 7978 transitions. [2025-03-08 07:47:43,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:43,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 153.8) internal successors, (769), 5 states have internal predecessors, (769), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 801 [2025-03-08 07:47:43,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:43,622 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:43,622 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:43,624 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 07:47:43,625 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 4374 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 1990 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4381 SdHoareTripleChecker+Valid, 6845 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:43,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4381 Valid, 6845 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1990 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 07:47:43,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:43,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:43,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4938858695652173) internal successors, (4398), 2944 states have internal predecessors, (4398), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:43,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4412 transitions. [2025-03-08 07:47:43,652 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4412 transitions. Word has length 801 [2025-03-08 07:47:43,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:43,652 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4412 transitions. [2025-03-08 07:47:43,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.8) internal successors, (769), 5 states have internal predecessors, (769), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:43,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4412 transitions. [2025-03-08 07:47:43,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2025-03-08 07:47:43,657 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:43,657 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:43,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 07:47:43,658 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:43,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:43,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1013624184, now seen corresponding path program 1 times [2025-03-08 07:47:43,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:43,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597726430] [2025-03-08 07:47:43,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:43,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:43,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 802 statements into 1 equivalence classes. [2025-03-08 07:47:43,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 802 of 802 statements. [2025-03-08 07:47:43,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:43,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:44,581 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:44,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:44,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597726430] [2025-03-08 07:47:44,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597726430] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:44,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:44,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:44,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684673204] [2025-03-08 07:47:44,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:44,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:44,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:44,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:44,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:44,584 INFO L87 Difference]: Start difference. First operand 2953 states and 4412 transitions. Second operand has 5 states, 5 states have (on average 154.0) internal successors, (770), 5 states have internal predecessors, (770), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:45,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:45,652 INFO L93 Difference]: Finished difference Result 5340 states and 7976 transitions. [2025-03-08 07:47:45,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:45,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 154.0) internal successors, (770), 5 states have internal predecessors, (770), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 802 [2025-03-08 07:47:45,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:45,657 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:45,657 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:45,658 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 07:47:45,658 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 4370 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4377 SdHoareTripleChecker+Valid, 6845 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:45,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4377 Valid, 6845 Invalid, 1989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 07:47:45,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:45,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:45,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4935461956521738) internal successors, (4397), 2944 states have internal predecessors, (4397), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:45,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4411 transitions. [2025-03-08 07:47:45,680 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4411 transitions. Word has length 802 [2025-03-08 07:47:45,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:45,681 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4411 transitions. [2025-03-08 07:47:45,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 154.0) internal successors, (770), 5 states have internal predecessors, (770), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:45,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4411 transitions. [2025-03-08 07:47:45,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 804 [2025-03-08 07:47:45,685 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:45,685 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:45,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 07:47:45,685 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:45,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:45,686 INFO L85 PathProgramCache]: Analyzing trace with hash 771298181, now seen corresponding path program 1 times [2025-03-08 07:47:45,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:45,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828316508] [2025-03-08 07:47:45,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:45,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:45,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 803 statements into 1 equivalence classes. [2025-03-08 07:47:46,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 803 of 803 statements. [2025-03-08 07:47:46,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:46,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:46,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:46,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828316508] [2025-03-08 07:47:46,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828316508] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:46,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:46,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:46,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451632837] [2025-03-08 07:47:46,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:46,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:46,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:46,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:46,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:46,616 INFO L87 Difference]: Start difference. First operand 2953 states and 4411 transitions. Second operand has 5 states, 5 states have (on average 154.2) internal successors, (771), 5 states have internal predecessors, (771), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:47,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:47,614 INFO L93 Difference]: Finished difference Result 5340 states and 7974 transitions. [2025-03-08 07:47:47,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:47,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 154.2) internal successors, (771), 5 states have internal predecessors, (771), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 803 [2025-03-08 07:47:47,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:47,619 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:47,619 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:47,621 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 07:47:47,621 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 8335 mSDsluCounter, 3418 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8342 SdHoareTripleChecker+Valid, 6834 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:47,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8342 Valid, 6834 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 07:47:47,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:47,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4932065217391304) internal successors, (4396), 2944 states have internal predecessors, (4396), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:47,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4410 transitions. [2025-03-08 07:47:47,645 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4410 transitions. Word has length 803 [2025-03-08 07:47:47,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:47,645 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4410 transitions. [2025-03-08 07:47:47,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 154.2) internal successors, (771), 5 states have internal predecessors, (771), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:47,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4410 transitions. [2025-03-08 07:47:47,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2025-03-08 07:47:47,649 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:47,650 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:47,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 07:47:47,650 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:47,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:47,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1557720979, now seen corresponding path program 1 times [2025-03-08 07:47:47,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:47,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612211143] [2025-03-08 07:47:47,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:47,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:47,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 804 statements into 1 equivalence classes. [2025-03-08 07:47:47,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 804 of 804 statements. [2025-03-08 07:47:47,954 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:47,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:48,586 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:48,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:48,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612211143] [2025-03-08 07:47:48,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612211143] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:48,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:48,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:48,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152202691] [2025-03-08 07:47:48,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:48,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:48,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:48,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:48,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:48,587 INFO L87 Difference]: Start difference. First operand 2953 states and 4410 transitions. Second operand has 5 states, 5 states have (on average 154.4) internal successors, (772), 5 states have internal predecessors, (772), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:49,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:49,597 INFO L93 Difference]: Finished difference Result 5340 states and 7972 transitions. [2025-03-08 07:47:49,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:49,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 154.4) internal successors, (772), 5 states have internal predecessors, (772), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 804 [2025-03-08 07:47:49,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:49,602 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:49,602 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:49,605 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 07:47:49,606 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 8327 mSDsluCounter, 3418 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8334 SdHoareTripleChecker+Valid, 6834 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:49,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8334 Valid, 6834 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1984 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 07:47:49,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:49,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.492866847826087) internal successors, (4395), 2944 states have internal predecessors, (4395), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:49,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4409 transitions. [2025-03-08 07:47:49,632 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4409 transitions. Word has length 804 [2025-03-08 07:47:49,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:49,633 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4409 transitions. [2025-03-08 07:47:49,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 154.4) internal successors, (772), 5 states have internal predecessors, (772), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:49,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4409 transitions. [2025-03-08 07:47:49,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2025-03-08 07:47:49,637 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:49,637 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:49,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 07:47:49,638 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:49,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:49,638 INFO L85 PathProgramCache]: Analyzing trace with hash 247405578, now seen corresponding path program 1 times [2025-03-08 07:47:49,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:49,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701409136] [2025-03-08 07:47:49,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:49,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:49,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 805 statements into 1 equivalence classes. [2025-03-08 07:47:49,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 805 of 805 statements. [2025-03-08 07:47:49,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:49,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:50,542 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:50,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:50,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701409136] [2025-03-08 07:47:50,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701409136] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:50,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:50,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:50,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689075619] [2025-03-08 07:47:50,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:50,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:50,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:50,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:50,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:50,544 INFO L87 Difference]: Start difference. First operand 2953 states and 4409 transitions. Second operand has 5 states, 5 states have (on average 154.6) internal successors, (773), 5 states have internal predecessors, (773), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:51,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:51,594 INFO L93 Difference]: Finished difference Result 5340 states and 7970 transitions. [2025-03-08 07:47:51,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:51,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 154.6) internal successors, (773), 5 states have internal predecessors, (773), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 805 [2025-03-08 07:47:51,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:51,599 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:51,599 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:51,601 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 07:47:51,603 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 4358 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4365 SdHoareTripleChecker+Valid, 6845 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:51,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4365 Valid, 6845 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 07:47:51,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:51,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:51,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4925271739130435) internal successors, (4394), 2944 states have internal predecessors, (4394), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:51,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4408 transitions. [2025-03-08 07:47:51,629 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4408 transitions. Word has length 805 [2025-03-08 07:47:51,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:51,630 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4408 transitions. [2025-03-08 07:47:51,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 154.6) internal successors, (773), 5 states have internal predecessors, (773), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:51,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4408 transitions. [2025-03-08 07:47:51,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2025-03-08 07:47:51,634 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:51,634 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:51,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 07:47:51,634 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:51,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:51,635 INFO L85 PathProgramCache]: Analyzing trace with hash -865202990, now seen corresponding path program 1 times [2025-03-08 07:47:51,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:51,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142883930] [2025-03-08 07:47:51,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:51,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:51,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 806 statements into 1 equivalence classes. [2025-03-08 07:47:51,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 806 of 806 statements. [2025-03-08 07:47:51,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:51,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:52,595 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:52,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:52,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142883930] [2025-03-08 07:47:52,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142883930] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:52,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:52,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:52,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690997021] [2025-03-08 07:47:52,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:52,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:52,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:52,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:52,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:52,598 INFO L87 Difference]: Start difference. First operand 2953 states and 4408 transitions. Second operand has 5 states, 5 states have (on average 154.8) internal successors, (774), 5 states have internal predecessors, (774), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:53,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:53,676 INFO L93 Difference]: Finished difference Result 5340 states and 7968 transitions. [2025-03-08 07:47:53,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:53,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 154.8) internal successors, (774), 5 states have internal predecessors, (774), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 806 [2025-03-08 07:47:53,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:53,681 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:53,681 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:53,683 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 07:47:53,684 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 4354 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4361 SdHoareTripleChecker+Valid, 6845 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:53,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4361 Valid, 6845 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 07:47:53,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:53,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:53,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4921875) internal successors, (4393), 2944 states have internal predecessors, (4393), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:53,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4407 transitions. [2025-03-08 07:47:53,710 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4407 transitions. Word has length 806 [2025-03-08 07:47:53,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:53,711 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4407 transitions. [2025-03-08 07:47:53,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 154.8) internal successors, (774), 5 states have internal predecessors, (774), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:53,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4407 transitions. [2025-03-08 07:47:53,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2025-03-08 07:47:53,715 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:53,715 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:53,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-08 07:47:53,716 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:53,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:53,716 INFO L85 PathProgramCache]: Analyzing trace with hash 432548623, now seen corresponding path program 1 times [2025-03-08 07:47:53,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:53,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447634529] [2025-03-08 07:47:53,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:53,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:53,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 807 statements into 1 equivalence classes. [2025-03-08 07:47:54,026 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 807 of 807 statements. [2025-03-08 07:47:54,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:54,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:54,658 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:54,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:54,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447634529] [2025-03-08 07:47:54,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447634529] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:54,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:54,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:54,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702985862] [2025-03-08 07:47:54,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:54,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:54,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:54,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:54,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:54,659 INFO L87 Difference]: Start difference. First operand 2953 states and 4407 transitions. Second operand has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:55,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:55,646 INFO L93 Difference]: Finished difference Result 5340 states and 7966 transitions. [2025-03-08 07:47:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:55,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 807 [2025-03-08 07:47:55,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:55,651 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:55,651 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:55,653 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 07:47:55,653 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 8303 mSDsluCounter, 3418 mSDsCounter, 0 mSdLazyCounter, 1978 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8310 SdHoareTripleChecker+Valid, 6834 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:55,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8310 Valid, 6834 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1978 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 07:47:55,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:55,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:55,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4918478260869565) internal successors, (4392), 2944 states have internal predecessors, (4392), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:55,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4406 transitions. [2025-03-08 07:47:55,678 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4406 transitions. Word has length 807 [2025-03-08 07:47:55,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:55,678 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4406 transitions. [2025-03-08 07:47:55,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:55,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4406 transitions. [2025-03-08 07:47:55,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2025-03-08 07:47:55,683 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:55,684 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:55,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-08 07:47:55,684 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:55,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:55,685 INFO L85 PathProgramCache]: Analyzing trace with hash -457406537, now seen corresponding path program 1 times [2025-03-08 07:47:55,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:55,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571616314] [2025-03-08 07:47:55,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:55,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:55,819 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 808 statements into 1 equivalence classes. [2025-03-08 07:47:55,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 808 of 808 statements. [2025-03-08 07:47:55,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:55,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:56,621 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:56,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:56,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571616314] [2025-03-08 07:47:56,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571616314] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:56,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:56,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:56,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838794341] [2025-03-08 07:47:56,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:56,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:56,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:56,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:56,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:56,623 INFO L87 Difference]: Start difference. First operand 2953 states and 4406 transitions. Second operand has 5 states, 5 states have (on average 155.2) internal successors, (776), 5 states have internal predecessors, (776), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:57,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:57,599 INFO L93 Difference]: Finished difference Result 5340 states and 7964 transitions. [2025-03-08 07:47:57,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:57,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 155.2) internal successors, (776), 5 states have internal predecessors, (776), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 808 [2025-03-08 07:47:57,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:57,602 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:57,602 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:57,604 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 07:47:57,604 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 4346 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4353 SdHoareTripleChecker+Valid, 6845 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:57,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4353 Valid, 6845 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 07:47:57,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:57,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:57,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.491508152173913) internal successors, (4391), 2944 states have internal predecessors, (4391), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:57,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4405 transitions. [2025-03-08 07:47:57,631 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4405 transitions. Word has length 808 [2025-03-08 07:47:57,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:57,631 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4405 transitions. [2025-03-08 07:47:57,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 155.2) internal successors, (776), 5 states have internal predecessors, (776), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:57,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4405 transitions. [2025-03-08 07:47:57,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2025-03-08 07:47:57,636 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:57,636 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:57,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-08 07:47:57,636 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:57,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:57,637 INFO L85 PathProgramCache]: Analyzing trace with hash 277643412, now seen corresponding path program 1 times [2025-03-08 07:47:57,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:57,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404563983] [2025-03-08 07:47:57,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:57,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:57,774 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 809 statements into 1 equivalence classes. [2025-03-08 07:47:57,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 809 of 809 statements. [2025-03-08 07:47:57,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:47:57,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:47:58,532 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:47:58,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:47:58,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404563983] [2025-03-08 07:47:58,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404563983] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:47:58,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:47:58,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:47:58,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574016098] [2025-03-08 07:47:58,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:47:58,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:47:58,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:47:58,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:47:58,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:47:58,533 INFO L87 Difference]: Start difference. First operand 2953 states and 4405 transitions. Second operand has 5 states, 5 states have (on average 155.4) internal successors, (777), 5 states have internal predecessors, (777), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:59,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:47:59,537 INFO L93 Difference]: Finished difference Result 5340 states and 7962 transitions. [2025-03-08 07:47:59,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:47:59,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 155.4) internal successors, (777), 5 states have internal predecessors, (777), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 809 [2025-03-08 07:47:59,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:47:59,540 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:47:59,540 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:47:59,542 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 07:47:59,542 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 8287 mSDsluCounter, 3418 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8294 SdHoareTripleChecker+Valid, 6834 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 07:47:59,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8294 Valid, 6834 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 07:47:59,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:47:59,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:47:59,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4911684782608696) internal successors, (4390), 2944 states have internal predecessors, (4390), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:47:59,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4404 transitions. [2025-03-08 07:47:59,565 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4404 transitions. Word has length 809 [2025-03-08 07:47:59,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:47:59,566 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4404 transitions. [2025-03-08 07:47:59,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 155.4) internal successors, (777), 5 states have internal predecessors, (777), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:47:59,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4404 transitions. [2025-03-08 07:47:59,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2025-03-08 07:47:59,570 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:47:59,570 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:59,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-08 07:47:59,570 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:47:59,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:47:59,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1422180636, now seen corresponding path program 1 times [2025-03-08 07:47:59,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:47:59,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719894745] [2025-03-08 07:47:59,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:47:59,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:47:59,703 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 810 statements into 1 equivalence classes. [2025-03-08 07:48:00,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 810 of 810 statements. [2025-03-08 07:48:00,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:00,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:00,848 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:48:00,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:00,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719894745] [2025-03-08 07:48:00,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719894745] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:00,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:00,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:00,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117249754] [2025-03-08 07:48:00,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:00,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:00,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:00,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:00,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:00,850 INFO L87 Difference]: Start difference. First operand 2953 states and 4404 transitions. Second operand has 5 states, 5 states have (on average 155.6) internal successors, (778), 5 states have internal predecessors, (778), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:48:01,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:01,793 INFO L93 Difference]: Finished difference Result 5340 states and 7960 transitions. [2025-03-08 07:48:01,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:01,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 155.6) internal successors, (778), 5 states have internal predecessors, (778), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 810 [2025-03-08 07:48:01,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:01,796 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:48:01,796 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:48:01,798 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 07:48:01,799 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 4338 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4345 SdHoareTripleChecker+Valid, 6845 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:01,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4345 Valid, 6845 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 07:48:01,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:48:01,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:48:01,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4908288043478262) internal successors, (4389), 2944 states have internal predecessors, (4389), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:48:01,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4403 transitions. [2025-03-08 07:48:01,820 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4403 transitions. Word has length 810 [2025-03-08 07:48:01,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:01,820 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4403 transitions. [2025-03-08 07:48:01,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 155.6) internal successors, (778), 5 states have internal predecessors, (778), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:48:01,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4403 transitions. [2025-03-08 07:48:01,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2025-03-08 07:48:01,824 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:01,825 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:01,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-08 07:48:01,825 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:01,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:01,825 INFO L85 PathProgramCache]: Analyzing trace with hash 40131737, now seen corresponding path program 1 times [2025-03-08 07:48:01,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:01,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629148035] [2025-03-08 07:48:01,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:01,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:01,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 811 statements into 1 equivalence classes. [2025-03-08 07:48:02,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 811 of 811 statements. [2025-03-08 07:48:02,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:02,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:02,794 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:48:02,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:02,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629148035] [2025-03-08 07:48:02,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629148035] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:02,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:02,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:02,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065710411] [2025-03-08 07:48:02,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:02,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:02,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:02,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:02,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:02,796 INFO L87 Difference]: Start difference. First operand 2953 states and 4403 transitions. Second operand has 5 states, 5 states have (on average 155.8) internal successors, (779), 5 states have internal predecessors, (779), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:48:03,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:03,772 INFO L93 Difference]: Finished difference Result 5340 states and 7958 transitions. [2025-03-08 07:48:03,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:03,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 155.8) internal successors, (779), 5 states have internal predecessors, (779), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 811 [2025-03-08 07:48:03,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:03,776 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:48:03,776 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:48:03,778 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 07:48:03,780 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 7953 mSDsluCounter, 3418 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7960 SdHoareTripleChecker+Valid, 6834 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:03,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7960 Valid, 6834 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 07:48:03,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:48:03,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:48:03,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.4904891304347827) internal successors, (4388), 2944 states have internal predecessors, (4388), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:48:03,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4402 transitions. [2025-03-08 07:48:03,810 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4402 transitions. Word has length 811 [2025-03-08 07:48:03,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:03,811 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4402 transitions. [2025-03-08 07:48:03,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 155.8) internal successors, (779), 5 states have internal predecessors, (779), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:48:03,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4402 transitions. [2025-03-08 07:48:03,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2025-03-08 07:48:03,815 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:03,815 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:03,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-08 07:48:03,816 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:03,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:03,817 INFO L85 PathProgramCache]: Analyzing trace with hash 643572438, now seen corresponding path program 1 times [2025-03-08 07:48:03,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:03,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483350412] [2025-03-08 07:48:03,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:03,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:03,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 812 statements into 1 equivalence classes. [2025-03-08 07:48:04,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 812 of 812 statements. [2025-03-08 07:48:04,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:04,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:04,734 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:48:04,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:04,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483350412] [2025-03-08 07:48:04,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483350412] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:04,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:04,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:04,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448051742] [2025-03-08 07:48:04,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:04,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:04,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:04,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:04,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:04,735 INFO L87 Difference]: Start difference. First operand 2953 states and 4402 transitions. Second operand has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:48:05,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:48:05,729 INFO L93 Difference]: Finished difference Result 5340 states and 7956 transitions. [2025-03-08 07:48:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:48:05,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 812 [2025-03-08 07:48:05,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:48:05,733 INFO L225 Difference]: With dead ends: 5340 [2025-03-08 07:48:05,733 INFO L226 Difference]: Without dead ends: 2953 [2025-03-08 07:48:05,735 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 07:48:05,735 INFO L435 NwaCegarLoop]: 3416 mSDtfsCounter, 4171 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 1968 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4178 SdHoareTripleChecker+Valid, 6845 SdHoareTripleChecker+Invalid, 1969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 07:48:05,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4178 Valid, 6845 Invalid, 1969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 07:48:05,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2025-03-08 07:48:05,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2025-03-08 07:48:05,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2944 states have (on average 1.490149456521739) internal successors, (4387), 2944 states have internal predecessors, (4387), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-08 07:48:05,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4401 transitions. [2025-03-08 07:48:05,755 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4401 transitions. Word has length 812 [2025-03-08 07:48:05,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:48:05,756 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4401 transitions. [2025-03-08 07:48:05,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-08 07:48:05,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4401 transitions. [2025-03-08 07:48:05,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2025-03-08 07:48:05,760 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:48:05,760 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:05,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-08 07:48:05,760 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:48:05,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:48:05,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1002988716, now seen corresponding path program 1 times [2025-03-08 07:48:05,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:48:05,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430204120] [2025-03-08 07:48:05,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:48:05,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:48:05,894 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 813 statements into 1 equivalence classes. [2025-03-08 07:48:06,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 813 of 813 statements. [2025-03-08 07:48:06,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:48:06,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:48:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-08 07:48:06,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:48:06,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430204120] [2025-03-08 07:48:06,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430204120] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:48:06,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:48:06,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:48:06,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103616178] [2025-03-08 07:48:06,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:48:06,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:48:06,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:48:06,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:48:06,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:48:06,753 INFO L87 Difference]: Start difference. First operand 2953 states and 4401 transitions. Second operand has 5 states, 5 states have (on average 156.2) internal successors, (781), 5 states have internal predecessors, (781), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)