./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-25.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-25.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash ec10ea9e3b5ae44205b1577b4332bbdea7d48266e807778645f0ab1e80c264b0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 11:17:45,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 11:17:45,523 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 11:17:45,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 11:17:45,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 11:17:45,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 11:17:45,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 11:17:45,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 11:17:45,552 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 11:17:45,553 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 11:17:45,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 11:17:45,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 11:17:45,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 11:17:45,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 11:17:45,554 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 11:17:45,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 11:17:45,554 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 11:17:45,555 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 11:17:45,555 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 11:17:45,555 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 11:17:45,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 11:17:45,555 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 11:17:45,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 11:17:45,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 11:17:45,555 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 11:17:45,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 11:17:45,555 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 11:17:45,555 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 11:17:45,555 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 11:17:45,556 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 11:17:45,556 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 11:17:45,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 11:17:45,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 11:17:45,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 11:17:45,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 11:17:45,557 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 11:17:45,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 11:17:45,557 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 11:17:45,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 11:17:45,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 11:17:45,557 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 11:17:45,557 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 11:17:45,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 11:17:45,557 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec10ea9e3b5ae44205b1577b4332bbdea7d48266e807778645f0ab1e80c264b0 [2025-03-08 11:17:45,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 11:17:45,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 11:17:45,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 11:17:45,823 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 11:17:45,823 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 11:17:45,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-25.i [2025-03-08 11:17:46,986 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53240cb83/85c21648bb5e4077a0d67b4cfab86e8e/FLAGe950dde5c [2025-03-08 11:17:47,291 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 11:17:47,296 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-25.i [2025-03-08 11:17:47,314 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53240cb83/85c21648bb5e4077a0d67b4cfab86e8e/FLAGe950dde5c [2025-03-08 11:17:47,546 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53240cb83/85c21648bb5e4077a0d67b4cfab86e8e [2025-03-08 11:17:47,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 11:17:47,549 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 11:17:47,550 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 11:17:47,550 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 11:17:47,553 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 11:17:47,554 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:47,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f45945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47, skipping insertion in model container [2025-03-08 11:17:47,555 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:47,588 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 11:17:47,693 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-25.i[916,929] [2025-03-08 11:17:47,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 11:17:47,867 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 11:17:47,877 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-25.i[916,929] [2025-03-08 11:17:47,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 11:17:47,962 INFO L204 MainTranslator]: Completed translation [2025-03-08 11:17:47,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47 WrapperNode [2025-03-08 11:17:47,963 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 11:17:47,964 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 11:17:47,964 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 11:17:47,964 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 11:17:47,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:47,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:48,039 INFO L138 Inliner]: procedures = 26, calls = 120, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 918 [2025-03-08 11:17:48,039 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 11:17:48,040 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 11:17:48,040 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 11:17:48,040 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 11:17:48,048 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:48,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:48,060 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:48,082 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 11:17:48,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:48,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:48,107 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:48,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:48,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:48,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:48,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 11:17:48,140 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 11:17:48,140 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 11:17:48,140 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 11:17:48,142 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47" (1/1) ... [2025-03-08 11:17:48,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 11:17:48,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 11:17:48,169 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 11:17:48,171 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 11:17:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 11:17:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 11:17:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 11:17:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 11:17:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 11:17:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 11:17:48,299 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 11:17:48,301 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 11:17:49,265 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2025-03-08 11:17:49,267 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 11:17:49,303 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 11:17:49,305 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-08 11:17:49,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 11:17:49 BoogieIcfgContainer [2025-03-08 11:17:49,305 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 11:17:49,307 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 11:17:49,307 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 11:17:49,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 11:17:49,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 11:17:47" (1/3) ... [2025-03-08 11:17:49,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@edfb14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 11:17:49, skipping insertion in model container [2025-03-08 11:17:49,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:17:47" (2/3) ... [2025-03-08 11:17:49,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@edfb14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 11:17:49, skipping insertion in model container [2025-03-08 11:17:49,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 11:17:49" (3/3) ... [2025-03-08 11:17:49,313 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-25.i [2025-03-08 11:17:49,325 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 11:17:49,328 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-25.i that has 2 procedures, 368 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 11:17:49,396 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 11:17:49,406 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;@31d126c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 11:17:49,407 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 11:17:49,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 368 states, 258 states have (on average 1.5968992248062015) internal successors, (412), 259 states have internal predecessors, (412), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2025-03-08 11:17:49,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2025-03-08 11:17:49,445 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:17:49,447 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:49,447 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:17:49,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:17:49,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1513315904, now seen corresponding path program 1 times [2025-03-08 11:17:49,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:17:49,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568298081] [2025-03-08 11:17:49,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:17:49,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:17:49,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 696 statements into 1 equivalence classes. [2025-03-08 11:17:49,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 696 of 696 statements. [2025-03-08 11:17:49,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:17:49,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:17:50,038 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 22472 trivial. 0 not checked. [2025-03-08 11:17:50,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:17:50,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568298081] [2025-03-08 11:17:50,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568298081] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 11:17:50,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921184876] [2025-03-08 11:17:50,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:17:50,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 11:17:50,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 11:17:50,044 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 11:17:50,046 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 11:17:50,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 696 statements into 1 equivalence classes. [2025-03-08 11:17:50,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 696 of 696 statements. [2025-03-08 11:17:50,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:17:50,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:17:50,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 1615 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 11:17:50,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 11:17:50,520 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 22472 trivial. 0 not checked. [2025-03-08 11:17:50,521 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 11:17:50,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921184876] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:17:50,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 11:17:50,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 11:17:50,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802866717] [2025-03-08 11:17:50,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:17:50,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 11:17:50,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:17:50,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 11:17:50,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 11:17:50,547 INFO L87 Difference]: Start difference. First operand has 368 states, 258 states have (on average 1.5968992248062015) internal successors, (412), 259 states have internal predecessors, (412), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) Second operand has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 2 states have call successors, (107), 2 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 2 states have call successors, (107) [2025-03-08 11:17:50,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:17:50,637 INFO L93 Difference]: Finished difference Result 730 states and 1354 transitions. [2025-03-08 11:17:50,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 11:17:50,640 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 2 states have call successors, (107), 2 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 2 states have call successors, (107) Word has length 696 [2025-03-08 11:17:50,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:17:50,649 INFO L225 Difference]: With dead ends: 730 [2025-03-08 11:17:50,649 INFO L226 Difference]: Without dead ends: 365 [2025-03-08 11:17:50,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 697 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 11:17:50,658 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 11:17:50,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 597 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 11:17:50,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2025-03-08 11:17:50,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2025-03-08 11:17:50,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 256 states have (on average 1.58203125) internal successors, (405), 256 states have internal predecessors, (405), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2025-03-08 11:17:50,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 619 transitions. [2025-03-08 11:17:50,755 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 619 transitions. Word has length 696 [2025-03-08 11:17:50,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:17:50,756 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 619 transitions. [2025-03-08 11:17:50,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 2 states have call successors, (107), 2 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 2 states have call successors, (107) [2025-03-08 11:17:50,758 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 619 transitions. [2025-03-08 11:17:50,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2025-03-08 11:17:50,773 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:17:50,773 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:50,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 11:17:50,974 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 11:17:50,974 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:17:50,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:17:50,975 INFO L85 PathProgramCache]: Analyzing trace with hash 820445046, now seen corresponding path program 1 times [2025-03-08 11:17:50,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:17:50,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568859800] [2025-03-08 11:17:50,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:17:50,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:17:51,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 698 statements into 1 equivalence classes. [2025-03-08 11:17:51,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 698 of 698 statements. [2025-03-08 11:17:51,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:17:51,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:17:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:17:51,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:17:51,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568859800] [2025-03-08 11:17:51,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568859800] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:17:51,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:17:51,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 11:17:51,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367792831] [2025-03-08 11:17:51,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:17:51,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 11:17:51,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:17:51,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 11:17:51,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:51,753 INFO L87 Difference]: Start difference. First operand 365 states and 619 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:51,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:17:51,876 INFO L93 Difference]: Finished difference Result 941 states and 1606 transitions. [2025-03-08 11:17:51,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 11:17:51,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 698 [2025-03-08 11:17:51,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:17:51,887 INFO L225 Difference]: With dead ends: 941 [2025-03-08 11:17:51,887 INFO L226 Difference]: Without dead ends: 579 [2025-03-08 11:17:51,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:51,888 INFO L435 NwaCegarLoop]: 671 mSDtfsCounter, 363 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 11:17:51,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1241 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 11:17:51,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2025-03-08 11:17:51,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 576. [2025-03-08 11:17:51,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 454 states have (on average 1.6365638766519823) internal successors, (743), 455 states have internal predecessors, (743), 119 states have call successors, (119), 2 states have call predecessors, (119), 2 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2025-03-08 11:17:51,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 981 transitions. [2025-03-08 11:17:51,960 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 981 transitions. Word has length 698 [2025-03-08 11:17:51,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:17:51,961 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 981 transitions. [2025-03-08 11:17:51,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:51,962 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 981 transitions. [2025-03-08 11:17:51,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2025-03-08 11:17:51,976 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:17:51,977 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:51,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 11:17:51,977 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:17:51,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:17:51,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1335965495, now seen corresponding path program 1 times [2025-03-08 11:17:51,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:17:51,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523978913] [2025-03-08 11:17:51,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:17:51,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:17:52,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 698 statements into 1 equivalence classes. [2025-03-08 11:17:52,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 698 of 698 statements. [2025-03-08 11:17:52,081 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:17:52,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:17:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:17:52,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:17:52,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523978913] [2025-03-08 11:17:52,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523978913] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:17:52,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:17:52,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 11:17:52,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350330445] [2025-03-08 11:17:52,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:17:52,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 11:17:52,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:17:52,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 11:17:52,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:52,383 INFO L87 Difference]: Start difference. First operand 576 states and 981 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:52,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:17:52,514 INFO L93 Difference]: Finished difference Result 1722 states and 2937 transitions. [2025-03-08 11:17:52,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 11:17:52,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 698 [2025-03-08 11:17:52,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:17:52,527 INFO L225 Difference]: With dead ends: 1722 [2025-03-08 11:17:52,528 INFO L226 Difference]: Without dead ends: 1149 [2025-03-08 11:17:52,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:52,530 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 430 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 11:17:52,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1173 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 11:17:52,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2025-03-08 11:17:52,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1143. [2025-03-08 11:17:52,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 900 states have (on average 1.6355555555555557) internal successors, (1472), 902 states have internal predecessors, (1472), 238 states have call successors, (238), 4 states have call predecessors, (238), 4 states have return successors, (238), 236 states have call predecessors, (238), 238 states have call successors, (238) [2025-03-08 11:17:52,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1948 transitions. [2025-03-08 11:17:52,647 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1948 transitions. Word has length 698 [2025-03-08 11:17:52,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:17:52,649 INFO L471 AbstractCegarLoop]: Abstraction has 1143 states and 1948 transitions. [2025-03-08 11:17:52,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:52,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1948 transitions. [2025-03-08 11:17:52,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2025-03-08 11:17:52,656 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:17:52,656 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:52,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 11:17:52,657 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:17:52,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:17:52,658 INFO L85 PathProgramCache]: Analyzing trace with hash 126723256, now seen corresponding path program 1 times [2025-03-08 11:17:52,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:17:52,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238533156] [2025-03-08 11:17:52,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:17:52,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:17:52,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 698 statements into 1 equivalence classes. [2025-03-08 11:17:52,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 698 of 698 statements. [2025-03-08 11:17:52,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:17:52,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:17:52,920 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:17:52,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:17:52,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238533156] [2025-03-08 11:17:52,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238533156] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:17:52,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:17:52,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 11:17:52,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189773531] [2025-03-08 11:17:52,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:17:52,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 11:17:52,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:17:52,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 11:17:52,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:52,923 INFO L87 Difference]: Start difference. First operand 1143 states and 1948 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:53,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:17:53,034 INFO L93 Difference]: Finished difference Result 2295 states and 3902 transitions. [2025-03-08 11:17:53,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 11:17:53,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 698 [2025-03-08 11:17:53,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:17:53,046 INFO L225 Difference]: With dead ends: 2295 [2025-03-08 11:17:53,046 INFO L226 Difference]: Without dead ends: 1155 [2025-03-08 11:17:53,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:53,052 INFO L435 NwaCegarLoop]: 687 mSDtfsCounter, 334 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 11:17:53,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1261 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 11:17:53,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2025-03-08 11:17:53,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1053. [2025-03-08 11:17:53,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 834 states have (on average 1.6330935251798562) internal successors, (1362), 834 states have internal predecessors, (1362), 214 states have call successors, (214), 4 states have call predecessors, (214), 4 states have return successors, (214), 214 states have call predecessors, (214), 214 states have call successors, (214) [2025-03-08 11:17:53,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1790 transitions. [2025-03-08 11:17:53,147 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1790 transitions. Word has length 698 [2025-03-08 11:17:53,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:17:53,149 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1790 transitions. [2025-03-08 11:17:53,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:53,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1790 transitions. [2025-03-08 11:17:53,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2025-03-08 11:17:53,155 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:17:53,155 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:53,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 11:17:53,155 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:17:53,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:17:53,156 INFO L85 PathProgramCache]: Analyzing trace with hash 493880033, now seen corresponding path program 1 times [2025-03-08 11:17:53,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:17:53,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314120036] [2025-03-08 11:17:53,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:17:53,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:17:53,195 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 699 statements into 1 equivalence classes. [2025-03-08 11:17:53,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 699 of 699 statements. [2025-03-08 11:17:53,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:17:53,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:17:53,544 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:17:53,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:17:53,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314120036] [2025-03-08 11:17:53,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314120036] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:17:53,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:17:53,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 11:17:53,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209086516] [2025-03-08 11:17:53,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:17:53,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 11:17:53,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:17:53,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 11:17:53,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:53,548 INFO L87 Difference]: Start difference. First operand 1053 states and 1790 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:53,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:17:53,692 INFO L93 Difference]: Finished difference Result 2631 states and 4474 transitions. [2025-03-08 11:17:53,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 11:17:53,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 699 [2025-03-08 11:17:53,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:17:53,704 INFO L225 Difference]: With dead ends: 2631 [2025-03-08 11:17:53,705 INFO L226 Difference]: Without dead ends: 1581 [2025-03-08 11:17:53,707 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:53,709 INFO L435 NwaCegarLoop]: 742 mSDtfsCounter, 398 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 11:17:53,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1323 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 11:17:53,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2025-03-08 11:17:53,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1575. [2025-03-08 11:17:53,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1247 states have (on average 1.6311146752205292) internal successors, (2034), 1247 states have internal predecessors, (2034), 321 states have call successors, (321), 6 states have call predecessors, (321), 6 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2025-03-08 11:17:53,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 2676 transitions. [2025-03-08 11:17:53,802 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 2676 transitions. Word has length 699 [2025-03-08 11:17:53,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:17:53,803 INFO L471 AbstractCegarLoop]: Abstraction has 1575 states and 2676 transitions. [2025-03-08 11:17:53,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:53,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 2676 transitions. [2025-03-08 11:17:53,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2025-03-08 11:17:53,809 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:17:53,809 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:53,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 11:17:53,809 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:17:53,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:17:53,810 INFO L85 PathProgramCache]: Analyzing trace with hash -2006253369, now seen corresponding path program 1 times [2025-03-08 11:17:53,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:17:53,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625703370] [2025-03-08 11:17:53,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:17:53,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:17:53,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 700 statements into 1 equivalence classes. [2025-03-08 11:17:53,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 700 of 700 statements. [2025-03-08 11:17:53,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:17:53,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:17:54,599 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:17:54,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:17:54,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625703370] [2025-03-08 11:17:54,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625703370] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:17:54,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:17:54,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 11:17:54,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404607369] [2025-03-08 11:17:54,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:17:54,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 11:17:54,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:17:54,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 11:17:54,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 11:17:54,603 INFO L87 Difference]: Start difference. First operand 1575 states and 2676 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:55,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:17:55,049 INFO L93 Difference]: Finished difference Result 4250 states and 7240 transitions. [2025-03-08 11:17:55,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 11:17:55,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2025-03-08 11:17:55,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:17:55,064 INFO L225 Difference]: With dead ends: 4250 [2025-03-08 11:17:55,064 INFO L226 Difference]: Without dead ends: 2678 [2025-03-08 11:17:55,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 11:17:55,069 INFO L435 NwaCegarLoop]: 749 mSDtfsCounter, 334 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 11:17:55,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 2226 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 11:17:55,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2025-03-08 11:17:55,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 2673. [2025-03-08 11:17:55,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 2240 states have (on average 1.659375) internal successors, (3717), 2243 states have internal predecessors, (3717), 420 states have call successors, (420), 12 states have call predecessors, (420), 12 states have return successors, (420), 417 states have call predecessors, (420), 420 states have call successors, (420) [2025-03-08 11:17:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 4557 transitions. [2025-03-08 11:17:55,235 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 4557 transitions. Word has length 700 [2025-03-08 11:17:55,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:17:55,237 INFO L471 AbstractCegarLoop]: Abstraction has 2673 states and 4557 transitions. [2025-03-08 11:17:55,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:55,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 4557 transitions. [2025-03-08 11:17:55,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2025-03-08 11:17:55,248 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:17:55,249 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:55,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 11:17:55,249 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:17:55,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:17:55,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1035962362, now seen corresponding path program 1 times [2025-03-08 11:17:55,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:17:55,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343925448] [2025-03-08 11:17:55,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:17:55,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:17:55,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 700 statements into 1 equivalence classes. [2025-03-08 11:17:55,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 700 of 700 statements. [2025-03-08 11:17:55,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:17:55,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:17:55,606 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:17:55,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:17:55,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343925448] [2025-03-08 11:17:55,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343925448] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:17:55,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:17:55,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 11:17:55,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957332730] [2025-03-08 11:17:55,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:17:55,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 11:17:55,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:17:55,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 11:17:55,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:55,610 INFO L87 Difference]: Start difference. First operand 2673 states and 4557 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:55,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:17:55,705 INFO L93 Difference]: Finished difference Result 5355 states and 9135 transitions. [2025-03-08 11:17:55,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 11:17:55,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2025-03-08 11:17:55,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:17:55,721 INFO L225 Difference]: With dead ends: 5355 [2025-03-08 11:17:55,722 INFO L226 Difference]: Without dead ends: 2685 [2025-03-08 11:17:55,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:55,728 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 0 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 11:17:55,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1188 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 11:17:55,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2025-03-08 11:17:55,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2685. [2025-03-08 11:17:55,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2252 states have (on average 1.6558614564831262) internal successors, (3729), 2255 states have internal predecessors, (3729), 420 states have call successors, (420), 12 states have call predecessors, (420), 12 states have return successors, (420), 417 states have call predecessors, (420), 420 states have call successors, (420) [2025-03-08 11:17:55,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 4569 transitions. [2025-03-08 11:17:55,868 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 4569 transitions. Word has length 700 [2025-03-08 11:17:55,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:17:55,869 INFO L471 AbstractCegarLoop]: Abstraction has 2685 states and 4569 transitions. [2025-03-08 11:17:55,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:55,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 4569 transitions. [2025-03-08 11:17:55,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2025-03-08 11:17:55,877 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:17:55,877 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:55,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 11:17:55,877 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:17:55,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:17:55,878 INFO L85 PathProgramCache]: Analyzing trace with hash 39069703, now seen corresponding path program 1 times [2025-03-08 11:17:55,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:17:55,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483581918] [2025-03-08 11:17:55,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:17:55,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:17:55,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 700 statements into 1 equivalence classes. [2025-03-08 11:17:55,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 700 of 700 statements. [2025-03-08 11:17:55,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:17:55,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:17:56,271 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:17:56,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:17:56,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483581918] [2025-03-08 11:17:56,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483581918] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:17:56,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:17:56,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 11:17:56,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180970131] [2025-03-08 11:17:56,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:17:56,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 11:17:56,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:17:56,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 11:17:56,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:56,273 INFO L87 Difference]: Start difference. First operand 2685 states and 4569 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:56,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:17:56,440 INFO L93 Difference]: Finished difference Result 8049 states and 13701 transitions. [2025-03-08 11:17:56,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 11:17:56,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2025-03-08 11:17:56,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:17:56,464 INFO L225 Difference]: With dead ends: 8049 [2025-03-08 11:17:56,464 INFO L226 Difference]: Without dead ends: 5367 [2025-03-08 11:17:56,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:56,473 INFO L435 NwaCegarLoop]: 899 mSDtfsCounter, 597 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 11:17:56,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1489 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 11:17:56,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5367 states. [2025-03-08 11:17:56,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5367 to 3141. [2025-03-08 11:17:56,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 2708 states have (on average 1.6754062038404727) internal successors, (4537), 2711 states have internal predecessors, (4537), 420 states have call successors, (420), 12 states have call predecessors, (420), 12 states have return successors, (420), 417 states have call predecessors, (420), 420 states have call successors, (420) [2025-03-08 11:17:56,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 5377 transitions. [2025-03-08 11:17:56,709 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 5377 transitions. Word has length 700 [2025-03-08 11:17:56,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:17:56,709 INFO L471 AbstractCegarLoop]: Abstraction has 3141 states and 5377 transitions. [2025-03-08 11:17:56,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:56,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 5377 transitions. [2025-03-08 11:17:56,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2025-03-08 11:17:56,722 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:17:56,722 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:56,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 11:17:56,722 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:17:56,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:17:56,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1412815429, now seen corresponding path program 1 times [2025-03-08 11:17:56,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:17:56,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392731428] [2025-03-08 11:17:56,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:17:56,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:17:56,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 700 statements into 1 equivalence classes. [2025-03-08 11:17:56,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 700 of 700 statements. [2025-03-08 11:17:56,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:17:56,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:17:57,162 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:17:57,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:17:57,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392731428] [2025-03-08 11:17:57,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392731428] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:17:57,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:17:57,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 11:17:57,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035267048] [2025-03-08 11:17:57,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:17:57,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 11:17:57,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:17:57,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 11:17:57,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:57,166 INFO L87 Difference]: Start difference. First operand 3141 states and 5377 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:57,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:17:57,386 INFO L93 Difference]: Finished difference Result 9417 states and 16125 transitions. [2025-03-08 11:17:57,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 11:17:57,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2025-03-08 11:17:57,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:17:57,422 INFO L225 Difference]: With dead ends: 9417 [2025-03-08 11:17:57,423 INFO L226 Difference]: Without dead ends: 6279 [2025-03-08 11:17:57,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:57,434 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 362 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 11:17:57,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1187 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 11:17:57,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6279 states. [2025-03-08 11:17:57,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6279 to 6277. [2025-03-08 11:17:57,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6277 states, 5412 states have (on average 1.6747967479674797) internal successors, (9064), 5418 states have internal predecessors, (9064), 840 states have call successors, (840), 24 states have call predecessors, (840), 24 states have return successors, (840), 834 states have call predecessors, (840), 840 states have call successors, (840) [2025-03-08 11:17:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6277 states to 6277 states and 10744 transitions. [2025-03-08 11:17:57,769 INFO L78 Accepts]: Start accepts. Automaton has 6277 states and 10744 transitions. Word has length 700 [2025-03-08 11:17:57,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:17:57,770 INFO L471 AbstractCegarLoop]: Abstraction has 6277 states and 10744 transitions. [2025-03-08 11:17:57,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 6277 states and 10744 transitions. [2025-03-08 11:17:57,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2025-03-08 11:17:57,779 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:17:57,779 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:57,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 11:17:57,780 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:17:57,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:17:57,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1528842170, now seen corresponding path program 1 times [2025-03-08 11:17:57,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:17:57,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488784354] [2025-03-08 11:17:57,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:17:57,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:17:57,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 700 statements into 1 equivalence classes. [2025-03-08 11:17:57,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 700 of 700 statements. [2025-03-08 11:17:57,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:17:57,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:17:58,314 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:17:58,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:17:58,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488784354] [2025-03-08 11:17:58,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488784354] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:17:58,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:17:58,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 11:17:58,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043271121] [2025-03-08 11:17:58,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:17:58,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 11:17:58,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:17:58,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 11:17:58,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:58,317 INFO L87 Difference]: Start difference. First operand 6277 states and 10744 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:58,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:17:58,672 INFO L93 Difference]: Finished difference Result 9061 states and 15352 transitions. [2025-03-08 11:17:58,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 11:17:58,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2025-03-08 11:17:58,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:17:58,701 INFO L225 Difference]: With dead ends: 9061 [2025-03-08 11:17:58,701 INFO L226 Difference]: Without dead ends: 6963 [2025-03-08 11:17:58,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 11:17:58,710 INFO L435 NwaCegarLoop]: 821 mSDtfsCounter, 364 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 11:17:58,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1349 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 11:17:58,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6963 states. [2025-03-08 11:17:59,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6963 to 6949. [2025-03-08 11:17:59,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 5892 states have (on average 1.6490156143923964) internal successors, (9716), 5910 states have internal predecessors, (9716), 1008 states have call successors, (1008), 48 states have call predecessors, (1008), 48 states have return successors, (1008), 990 states have call predecessors, (1008), 1008 states have call successors, (1008) [2025-03-08 11:17:59,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 11732 transitions. [2025-03-08 11:17:59,041 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 11732 transitions. Word has length 700 [2025-03-08 11:17:59,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:17:59,043 INFO L471 AbstractCegarLoop]: Abstraction has 6949 states and 11732 transitions. [2025-03-08 11:17:59,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:17:59,044 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 11732 transitions. [2025-03-08 11:17:59,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2025-03-08 11:17:59,052 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:17:59,052 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:59,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 11:17:59,052 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:17:59,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:17:59,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1498715218, now seen corresponding path program 1 times [2025-03-08 11:17:59,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:17:59,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003348073] [2025-03-08 11:17:59,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:17:59,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:17:59,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 700 statements into 1 equivalence classes. [2025-03-08 11:17:59,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 700 of 700 statements. [2025-03-08 11:17:59,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:17:59,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:17:59,783 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:17:59,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:17:59,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003348073] [2025-03-08 11:17:59,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003348073] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:17:59,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:17:59,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 11:17:59,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077009926] [2025-03-08 11:17:59,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:17:59,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 11:17:59,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:17:59,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 11:17:59,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 11:17:59,786 INFO L87 Difference]: Start difference. First operand 6949 states and 11732 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:18:01,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:18:01,160 INFO L93 Difference]: Finished difference Result 14691 states and 24710 transitions. [2025-03-08 11:18:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 11:18:01,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2025-03-08 11:18:01,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:18:01,195 INFO L225 Difference]: With dead ends: 14691 [2025-03-08 11:18:01,195 INFO L226 Difference]: Without dead ends: 10057 [2025-03-08 11:18:01,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 11:18:01,210 INFO L435 NwaCegarLoop]: 839 mSDtfsCounter, 1238 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 11:18:01,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 3155 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 11:18:01,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10057 states. [2025-03-08 11:18:01,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10057 to 9090. [2025-03-08 11:18:01,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9090 states, 7755 states have (on average 1.6483558994197292) internal successors, (12783), 7782 states have internal predecessors, (12783), 1268 states have call successors, (1268), 66 states have call predecessors, (1268), 66 states have return successors, (1268), 1241 states have call predecessors, (1268), 1268 states have call successors, (1268) [2025-03-08 11:18:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9090 states to 9090 states and 15319 transitions. [2025-03-08 11:18:01,680 INFO L78 Accepts]: Start accepts. Automaton has 9090 states and 15319 transitions. Word has length 700 [2025-03-08 11:18:01,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:18:01,681 INFO L471 AbstractCegarLoop]: Abstraction has 9090 states and 15319 transitions. [2025-03-08 11:18:01,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:18:01,681 INFO L276 IsEmpty]: Start isEmpty. Operand 9090 states and 15319 transitions. [2025-03-08 11:18:01,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2025-03-08 11:18:01,689 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:18:01,689 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:01,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 11:18:01,689 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:18:01,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:18:01,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1866364310, now seen corresponding path program 1 times [2025-03-08 11:18:01,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:18:01,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073240627] [2025-03-08 11:18:01,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:18:01,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:18:01,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 700 statements into 1 equivalence classes. [2025-03-08 11:18:01,898 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 700 of 700 statements. [2025-03-08 11:18:01,899 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:18:01,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:18:02,481 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:18:02,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:18:02,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073240627] [2025-03-08 11:18:02,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073240627] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:18:02,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:18:02,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 11:18:02,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939237901] [2025-03-08 11:18:02,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:18:02,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 11:18:02,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:18:02,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 11:18:02,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-08 11:18:02,483 INFO L87 Difference]: Start difference. First operand 9090 states and 15319 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2025-03-08 11:18:03,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:18:03,992 INFO L93 Difference]: Finished difference Result 29528 states and 49289 transitions. [2025-03-08 11:18:03,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 11:18:03,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) Word has length 700 [2025-03-08 11:18:03,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:18:04,065 INFO L225 Difference]: With dead ends: 29528 [2025-03-08 11:18:04,066 INFO L226 Difference]: Without dead ends: 20522 [2025-03-08 11:18:04,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-03-08 11:18:04,097 INFO L435 NwaCegarLoop]: 573 mSDtfsCounter, 2127 mSDsluCounter, 2102 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 11:18:04,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2127 Valid, 2675 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 11:18:04,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20522 states. [2025-03-08 11:18:05,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20522 to 20504. [2025-03-08 11:18:05,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20504 states, 16531 states have (on average 1.6033512794144336) internal successors, (26505), 16616 states have internal predecessors, (26505), 3778 states have call successors, (3778), 194 states have call predecessors, (3778), 194 states have return successors, (3778), 3693 states have call predecessors, (3778), 3778 states have call successors, (3778) [2025-03-08 11:18:05,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20504 states to 20504 states and 34061 transitions. [2025-03-08 11:18:05,155 INFO L78 Accepts]: Start accepts. Automaton has 20504 states and 34061 transitions. Word has length 700 [2025-03-08 11:18:05,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:18:05,158 INFO L471 AbstractCegarLoop]: Abstraction has 20504 states and 34061 transitions. [2025-03-08 11:18:05,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2025-03-08 11:18:05,159 INFO L276 IsEmpty]: Start isEmpty. Operand 20504 states and 34061 transitions. [2025-03-08 11:18:05,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2025-03-08 11:18:05,173 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:18:05,174 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:05,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 11:18:05,174 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:18:05,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:18:05,175 INFO L85 PathProgramCache]: Analyzing trace with hash -840872311, now seen corresponding path program 1 times [2025-03-08 11:18:05,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:18:05,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976546335] [2025-03-08 11:18:05,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:18:05,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:18:05,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 700 statements into 1 equivalence classes. [2025-03-08 11:18:05,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 700 of 700 statements. [2025-03-08 11:18:05,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:18:05,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:18:06,404 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:18:06,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:18:06,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976546335] [2025-03-08 11:18:06,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976546335] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:18:06,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:18:06,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 11:18:06,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969793124] [2025-03-08 11:18:06,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:18:06,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 11:18:06,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:18:06,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 11:18:06,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 11:18:06,408 INFO L87 Difference]: Start difference. First operand 20504 states and 34061 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2025-03-08 11:18:08,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:18:08,502 INFO L93 Difference]: Finished difference Result 29251 states and 48602 transitions. [2025-03-08 11:18:08,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 11:18:08,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) Word has length 700 [2025-03-08 11:18:08,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:18:08,586 INFO L225 Difference]: With dead ends: 29251 [2025-03-08 11:18:08,586 INFO L226 Difference]: Without dead ends: 24039 [2025-03-08 11:18:08,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-08 11:18:08,606 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 1361 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 4034 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-08 11:18:08,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 4034 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-08 11:18:08,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24039 states. [2025-03-08 11:18:09,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24039 to 22920. [2025-03-08 11:18:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22920 states, 18615 states have (on average 1.6077894171367177) internal successors, (29929), 18708 states have internal predecessors, (29929), 4094 states have call successors, (4094), 210 states have call predecessors, (4094), 210 states have return successors, (4094), 4001 states have call predecessors, (4094), 4094 states have call successors, (4094) [2025-03-08 11:18:09,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22920 states to 22920 states and 38117 transitions. [2025-03-08 11:18:09,647 INFO L78 Accepts]: Start accepts. Automaton has 22920 states and 38117 transitions. Word has length 700 [2025-03-08 11:18:09,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:18:09,648 INFO L471 AbstractCegarLoop]: Abstraction has 22920 states and 38117 transitions. [2025-03-08 11:18:09,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2025-03-08 11:18:09,648 INFO L276 IsEmpty]: Start isEmpty. Operand 22920 states and 38117 transitions. [2025-03-08 11:18:09,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2025-03-08 11:18:09,660 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:18:09,660 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:09,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 11:18:09,660 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:18:09,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:18:09,661 INFO L85 PathProgramCache]: Analyzing trace with hash 327323944, now seen corresponding path program 1 times [2025-03-08 11:18:09,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:18:09,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719314831] [2025-03-08 11:18:09,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:18:09,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:18:09,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 700 statements into 1 equivalence classes. [2025-03-08 11:18:09,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 700 of 700 statements. [2025-03-08 11:18:09,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:18:09,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:18:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:18:10,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:18:10,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719314831] [2025-03-08 11:18:10,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719314831] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:18:10,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:18:10,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 11:18:10,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665814761] [2025-03-08 11:18:10,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:18:10,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 11:18:10,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:18:10,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 11:18:10,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 11:18:10,028 INFO L87 Difference]: Start difference. First operand 22920 states and 38117 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:18:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:18:12,195 INFO L93 Difference]: Finished difference Result 44040 states and 73404 transitions. [2025-03-08 11:18:12,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 11:18:12,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2025-03-08 11:18:12,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:18:12,329 INFO L225 Difference]: With dead ends: 44040 [2025-03-08 11:18:12,329 INFO L226 Difference]: Without dead ends: 36412 [2025-03-08 11:18:12,363 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 11:18:12,364 INFO L435 NwaCegarLoop]: 797 mSDtfsCounter, 965 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 11:18:12,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1990 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 11:18:12,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36412 states. [2025-03-08 11:18:13,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36412 to 36396. [2025-03-08 11:18:13,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36396 states, 29667 states have (on average 1.611184143998382) internal successors, (47799), 29808 states have internal predecessors, (47799), 6402 states have call successors, (6402), 326 states have call predecessors, (6402), 326 states have return successors, (6402), 6261 states have call predecessors, (6402), 6402 states have call successors, (6402) [2025-03-08 11:18:14,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36396 states to 36396 states and 60603 transitions. [2025-03-08 11:18:14,031 INFO L78 Accepts]: Start accepts. Automaton has 36396 states and 60603 transitions. Word has length 700 [2025-03-08 11:18:14,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:18:14,032 INFO L471 AbstractCegarLoop]: Abstraction has 36396 states and 60603 transitions. [2025-03-08 11:18:14,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:18:14,032 INFO L276 IsEmpty]: Start isEmpty. Operand 36396 states and 60603 transitions. [2025-03-08 11:18:14,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2025-03-08 11:18:14,046 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:18:14,047 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:14,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 11:18:14,047 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:18:14,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:18:14,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1993139844, now seen corresponding path program 1 times [2025-03-08 11:18:14,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:18:14,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216390205] [2025-03-08 11:18:14,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:18:14,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:18:14,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 701 statements into 1 equivalence classes. [2025-03-08 11:18:14,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 701 of 701 statements. [2025-03-08 11:18:14,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:18:14,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:18:15,205 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:18:15,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:18:15,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216390205] [2025-03-08 11:18:15,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216390205] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:18:15,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:18:15,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 11:18:15,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189405195] [2025-03-08 11:18:15,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:18:15,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 11:18:15,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:18:15,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 11:18:15,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 11:18:15,209 INFO L87 Difference]: Start difference. First operand 36396 states and 60603 transitions. Second operand has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:18:18,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:18:18,868 INFO L93 Difference]: Finished difference Result 75946 states and 126050 transitions. [2025-03-08 11:18:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 11:18:18,869 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 701 [2025-03-08 11:18:18,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:18:19,036 INFO L225 Difference]: With dead ends: 75946 [2025-03-08 11:18:19,037 INFO L226 Difference]: Without dead ends: 57694 [2025-03-08 11:18:19,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2025-03-08 11:18:19,084 INFO L435 NwaCegarLoop]: 814 mSDtfsCounter, 4549 mSDsluCounter, 3729 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4549 SdHoareTripleChecker+Valid, 4543 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-08 11:18:19,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4549 Valid, 4543 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-08 11:18:19,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57694 states. [2025-03-08 11:18:20,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57694 to 36832. [2025-03-08 11:18:20,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36832 states, 30103 states have (on average 1.6118991462644918) internal successors, (48523), 30244 states have internal predecessors, (48523), 6402 states have call successors, (6402), 326 states have call predecessors, (6402), 326 states have return successors, (6402), 6261 states have call predecessors, (6402), 6402 states have call successors, (6402) [2025-03-08 11:18:21,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36832 states to 36832 states and 61327 transitions. [2025-03-08 11:18:21,069 INFO L78 Accepts]: Start accepts. Automaton has 36832 states and 61327 transitions. Word has length 701 [2025-03-08 11:18:21,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:18:21,070 INFO L471 AbstractCegarLoop]: Abstraction has 36832 states and 61327 transitions. [2025-03-08 11:18:21,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:18:21,070 INFO L276 IsEmpty]: Start isEmpty. Operand 36832 states and 61327 transitions. [2025-03-08 11:18:21,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2025-03-08 11:18:21,083 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:18:21,083 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:21,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 11:18:21,084 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:18:21,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:18:21,084 INFO L85 PathProgramCache]: Analyzing trace with hash -138794307, now seen corresponding path program 1 times [2025-03-08 11:18:21,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:18:21,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571939920] [2025-03-08 11:18:21,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:18:21,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:18:21,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 701 statements into 1 equivalence classes. [2025-03-08 11:18:21,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 701 of 701 statements. [2025-03-08 11:18:21,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:18:21,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:18:22,747 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:18:22,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:18:22,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571939920] [2025-03-08 11:18:22,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571939920] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:18:22,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:18:22,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 11:18:22,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994213119] [2025-03-08 11:18:22,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:18:22,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 11:18:22,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:18:22,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 11:18:22,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 11:18:22,750 INFO L87 Difference]: Start difference. First operand 36832 states and 61327 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2025-03-08 11:18:26,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:18:26,935 INFO L93 Difference]: Finished difference Result 105629 states and 175596 transitions. [2025-03-08 11:18:26,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 11:18:26,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) Word has length 701 [2025-03-08 11:18:26,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:18:27,124 INFO L225 Difference]: With dead ends: 105629 [2025-03-08 11:18:27,124 INFO L226 Difference]: Without dead ends: 68881 [2025-03-08 11:18:27,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-08 11:18:27,217 INFO L435 NwaCegarLoop]: 1001 mSDtfsCounter, 1739 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1739 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-08 11:18:27,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1739 Valid, 3206 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-08 11:18:27,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68881 states. [2025-03-08 11:18:31,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68881 to 67484. [2025-03-08 11:18:31,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67484 states, 54628 states have (on average 1.6022918649776672) internal successors, (87530), 54917 states have internal predecessors, (87530), 12203 states have call successors, (12203), 652 states have call predecessors, (12203), 652 states have return successors, (12203), 11914 states have call predecessors, (12203), 12203 states have call successors, (12203) [2025-03-08 11:18:32,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67484 states to 67484 states and 111936 transitions. [2025-03-08 11:18:32,067 INFO L78 Accepts]: Start accepts. Automaton has 67484 states and 111936 transitions. Word has length 701 [2025-03-08 11:18:32,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:18:32,068 INFO L471 AbstractCegarLoop]: Abstraction has 67484 states and 111936 transitions. [2025-03-08 11:18:32,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2025-03-08 11:18:32,068 INFO L276 IsEmpty]: Start isEmpty. Operand 67484 states and 111936 transitions. [2025-03-08 11:18:32,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2025-03-08 11:18:32,088 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:18:32,088 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:32,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 11:18:32,089 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:18:32,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:18:32,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1322141604, now seen corresponding path program 1 times [2025-03-08 11:18:32,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:18:32,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177658922] [2025-03-08 11:18:32,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:18:32,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:18:32,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 701 statements into 1 equivalence classes. [2025-03-08 11:18:32,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 701 of 701 statements. [2025-03-08 11:18:32,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:18:32,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:18:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:18:32,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:18:32,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177658922] [2025-03-08 11:18:32,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177658922] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:18:32,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:18:32,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 11:18:32,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587169520] [2025-03-08 11:18:32,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:18:32,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 11:18:32,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:18:32,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 11:18:32,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 11:18:32,684 INFO L87 Difference]: Start difference. First operand 67484 states and 111936 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:18:37,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:18:37,547 INFO L93 Difference]: Finished difference Result 134462 states and 222943 transitions. [2025-03-08 11:18:37,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 11:18:37,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 701 [2025-03-08 11:18:37,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:18:37,746 INFO L225 Difference]: With dead ends: 134462 [2025-03-08 11:18:37,747 INFO L226 Difference]: Without dead ends: 67164 [2025-03-08 11:18:37,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 11:18:37,833 INFO L435 NwaCegarLoop]: 581 mSDtfsCounter, 647 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 11:18:37,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 1161 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 11:18:37,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67164 states. [2025-03-08 11:18:41,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67164 to 67164. [2025-03-08 11:18:41,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67164 states, 54308 states have (on average 1.582271488546807) internal successors, (85930), 54597 states have internal predecessors, (85930), 12203 states have call successors, (12203), 652 states have call predecessors, (12203), 652 states have return successors, (12203), 11914 states have call predecessors, (12203), 12203 states have call successors, (12203) [2025-03-08 11:18:41,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67164 states to 67164 states and 110336 transitions. [2025-03-08 11:18:41,724 INFO L78 Accepts]: Start accepts. Automaton has 67164 states and 110336 transitions. Word has length 701 [2025-03-08 11:18:41,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 11:18:41,725 INFO L471 AbstractCegarLoop]: Abstraction has 67164 states and 110336 transitions. [2025-03-08 11:18:41,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:18:41,725 INFO L276 IsEmpty]: Start isEmpty. Operand 67164 states and 110336 transitions. [2025-03-08 11:18:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2025-03-08 11:18:41,744 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 11:18:41,744 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:41,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-08 11:18:41,745 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 11:18:41,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 11:18:41,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1747453465, now seen corresponding path program 1 times [2025-03-08 11:18:41,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 11:18:41,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543924162] [2025-03-08 11:18:41,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 11:18:41,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 11:18:41,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 702 statements into 1 equivalence classes. [2025-03-08 11:18:42,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 702 of 702 statements. [2025-03-08 11:18:42,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 11:18:42,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 11:18:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2025-03-08 11:18:42,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 11:18:42,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543924162] [2025-03-08 11:18:42,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543924162] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 11:18:42,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 11:18:42,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 11:18:42,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978494354] [2025-03-08 11:18:42,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 11:18:42,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 11:18:42,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 11:18:42,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 11:18:42,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 11:18:42,326 INFO L87 Difference]: Start difference. First operand 67164 states and 110336 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2025-03-08 11:18:47,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 11:18:47,335 INFO L93 Difference]: Finished difference Result 132044 states and 216197 transitions. [2025-03-08 11:18:47,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 11:18:47,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 702 [2025-03-08 11:18:47,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 11:18:47,606 INFO L225 Difference]: With dead ends: 132044 [2025-03-08 11:18:47,606 INFO L226 Difference]: Without dead ends: 98226 [2025-03-08 11:18:47,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 11:18:47,675 INFO L435 NwaCegarLoop]: 799 mSDtfsCounter, 395 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 2021 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 11:18:47,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 2021 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 11:18:47,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98226 states.