./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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_fillercodestructure_filler-ps-cn_file-86.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 23a05992f4024df2d983a8fb4ad6ac19034ad7c6bce98692b4d6369898cca580 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 21:55:55,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 21:55:55,078 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 21:55:55,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 21:55:55,084 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 21:55:55,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 21:55:55,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 21:55:55,107 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 21:55:55,107 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 21:55:55,107 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 21:55:55,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 21:55:55,108 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 21:55:55,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 21:55:55,108 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 21:55:55,108 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 21:55:55,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 21:55:55,109 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 21:55:55,109 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 21:55:55,109 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 21:55:55,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 21:55:55,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 21:55:55,109 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 21:55:55,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 21:55:55,109 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 21:55:55,109 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 21:55:55,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 21:55:55,110 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 21:55:55,110 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 21:55:55,110 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 21:55:55,110 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 21:55:55,110 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 21:55:55,110 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 21:55:55,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 21:55:55,111 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 21:55:55,111 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 21:55:55,111 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 21:55:55,111 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 21:55:55,111 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 21:55:55,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 21:55:55,111 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 21:55:55,111 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 21:55:55,111 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 21:55:55,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 21:55:55,111 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 -> 23a05992f4024df2d983a8fb4ad6ac19034ad7c6bce98692b4d6369898cca580 [2025-03-03 21:55:55,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 21:55:55,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 21:55:55,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 21:55:55,358 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 21:55:55,359 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 21:55:55,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-86.i [2025-03-03 21:55:56,578 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9df0ecd99/bc439b93e8bf4cc89499a24f6cc66465/FLAG7897a880b [2025-03-03 21:55:56,847 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 21:55:56,848 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-86.i [2025-03-03 21:55:56,855 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9df0ecd99/bc439b93e8bf4cc89499a24f6cc66465/FLAG7897a880b [2025-03-03 21:55:56,873 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9df0ecd99/bc439b93e8bf4cc89499a24f6cc66465 [2025-03-03 21:55:56,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 21:55:56,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 21:55:56,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 21:55:56,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 21:55:56,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 21:55:56,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 09:55:56" (1/1) ... [2025-03-03 21:55:56,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6877c3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:56, skipping insertion in model container [2025-03-03 21:55:56,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 09:55:56" (1/1) ... [2025-03-03 21:55:56,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 21:55:57,012 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_fillercodestructure_filler-ps-cn_file-86.i[919,932] [2025-03-03 21:55:57,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 21:55:57,098 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 21:55:57,106 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_fillercodestructure_filler-ps-cn_file-86.i[919,932] [2025-03-03 21:55:57,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 21:55:57,148 INFO L204 MainTranslator]: Completed translation [2025-03-03 21:55:57,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57 WrapperNode [2025-03-03 21:55:57,149 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 21:55:57,150 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 21:55:57,150 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 21:55:57,150 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 21:55:57,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57" (1/1) ... [2025-03-03 21:55:57,170 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57" (1/1) ... [2025-03-03 21:55:57,200 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 245 [2025-03-03 21:55:57,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 21:55:57,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 21:55:57,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 21:55:57,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 21:55:57,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57" (1/1) ... [2025-03-03 21:55:57,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57" (1/1) ... [2025-03-03 21:55:57,220 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57" (1/1) ... [2025-03-03 21:55:57,242 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]. [2025-03-03 21:55:57,246 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57" (1/1) ... [2025-03-03 21:55:57,246 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57" (1/1) ... [2025-03-03 21:55:57,257 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57" (1/1) ... [2025-03-03 21:55:57,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57" (1/1) ... [2025-03-03 21:55:57,259 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57" (1/1) ... [2025-03-03 21:55:57,263 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57" (1/1) ... [2025-03-03 21:55:57,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 21:55:57,268 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 21:55:57,268 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 21:55:57,268 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 21:55:57,272 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57" (1/1) ... [2025-03-03 21:55:57,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 21:55:57,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 21:55:57,297 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) [2025-03-03 21:55:57,302 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 [2025-03-03 21:55:57,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 21:55:57,316 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-03 21:55:57,316 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-03 21:55:57,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 21:55:57,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 21:55:57,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 21:55:57,384 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 21:55:57,386 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 21:55:57,803 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2025-03-03 21:55:57,803 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 21:55:57,819 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 21:55:57,821 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 21:55:57,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 09:55:57 BoogieIcfgContainer [2025-03-03 21:55:57,822 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 21:55:57,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 21:55:57,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 21:55:57,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 21:55:57,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 09:55:56" (1/3) ... [2025-03-03 21:55:57,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77893fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 09:55:57, skipping insertion in model container [2025-03-03 21:55:57,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:55:57" (2/3) ... [2025-03-03 21:55:57,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77893fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 09:55:57, skipping insertion in model container [2025-03-03 21:55:57,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 09:55:57" (3/3) ... [2025-03-03 21:55:57,830 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-86.i [2025-03-03 21:55:57,841 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 21:55:57,844 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-86.i that has 2 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 21:55:57,888 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 21:55:57,897 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;@62fc6dfa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 21:55:57,899 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 21:55:57,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 69 states have (on average 1.463768115942029) internal successors, (101), 70 states have internal predecessors, (101), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-03-03 21:55:57,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-03 21:55:57,912 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:55:57,913 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:55:57,913 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:55:57,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:55:57,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1781146, now seen corresponding path program 1 times [2025-03-03 21:55:57,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:55:57,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214631596] [2025-03-03 21:55:57,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:55:57,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:55:58,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-03 21:55:58,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-03 21:55:58,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:55:58,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:55:58,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2025-03-03 21:55:58,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 21:55:58,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214631596] [2025-03-03 21:55:58,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214631596] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 21:55:58,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099499247] [2025-03-03 21:55:58,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:55:58,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 21:55:58,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 21:55:58,261 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) [2025-03-03 21:55:58,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 21:55:58,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-03 21:55:58,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-03 21:55:58,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:55:58,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:55:58,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 21:55:58,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 21:55:58,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2025-03-03 21:55:58,446 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 21:55:58,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099499247] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 21:55:58,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 21:55:58,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-03 21:55:58,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218934315] [2025-03-03 21:55:58,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 21:55:58,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 21:55:58,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 21:55:58,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 21:55:58,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 21:55:58,471 INFO L87 Difference]: Start difference. First operand has 103 states, 69 states have (on average 1.463768115942029) internal successors, (101), 70 states have internal predecessors, (101), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2025-03-03 21:55:58,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 21:55:58,496 INFO L93 Difference]: Finished difference Result 200 states and 352 transitions. [2025-03-03 21:55:58,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 21:55:58,498 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 197 [2025-03-03 21:55:58,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 21:55:58,506 INFO L225 Difference]: With dead ends: 200 [2025-03-03 21:55:58,506 INFO L226 Difference]: Without dead ends: 100 [2025-03-03 21:55:58,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 21:55:58,512 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 21:55:58,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 21:55:58,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2025-03-03 21:55:58,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2025-03-03 21:55:58,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-03-03 21:55:58,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 157 transitions. [2025-03-03 21:55:58,553 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 157 transitions. Word has length 197 [2025-03-03 21:55:58,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 21:55:58,554 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 157 transitions. [2025-03-03 21:55:58,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2025-03-03 21:55:58,554 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 157 transitions. [2025-03-03 21:55:58,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-03 21:55:58,557 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:55:58,557 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:55:58,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 21:55:58,757 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 [2025-03-03 21:55:58,758 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:55:58,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:55:58,758 INFO L85 PathProgramCache]: Analyzing trace with hash -505266821, now seen corresponding path program 1 times [2025-03-03 21:55:58,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:55:58,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122443061] [2025-03-03 21:55:58,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:55:58,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:55:58,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-03 21:55:58,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-03 21:55:58,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:55:58,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:55:59,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2025-03-03 21:55:59,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 21:55:59,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122443061] [2025-03-03 21:55:59,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122443061] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 21:55:59,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 21:55:59,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 21:55:59,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875860471] [2025-03-03 21:55:59,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 21:55:59,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 21:55:59,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 21:55:59,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 21:55:59,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 21:55:59,100 INFO L87 Difference]: Start difference. First operand 100 states and 157 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:55:59,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 21:55:59,146 INFO L93 Difference]: Finished difference Result 198 states and 313 transitions. [2025-03-03 21:55:59,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 21:55:59,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2025-03-03 21:55:59,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 21:55:59,149 INFO L225 Difference]: With dead ends: 198 [2025-03-03 21:55:59,149 INFO L226 Difference]: Without dead ends: 101 [2025-03-03 21:55:59,149 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 [2025-03-03 21:55:59,150 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 21:55:59,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 299 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 21:55:59,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2025-03-03 21:55:59,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2025-03-03 21:55:59,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 68 states have (on average 1.411764705882353) internal successors, (96), 68 states have internal predecessors, (96), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-03-03 21:55:59,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 158 transitions. [2025-03-03 21:55:59,159 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 158 transitions. Word has length 197 [2025-03-03 21:55:59,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 21:55:59,160 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 158 transitions. [2025-03-03 21:55:59,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:55:59,160 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 158 transitions. [2025-03-03 21:55:59,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-03 21:55:59,162 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:55:59,163 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:55:59,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 21:55:59,163 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:55:59,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:55:59,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1502339174, now seen corresponding path program 1 times [2025-03-03 21:55:59,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:55:59,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867333241] [2025-03-03 21:55:59,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:55:59,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:55:59,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-03 21:55:59,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-03 21:55:59,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:55:59,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:55:59,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2025-03-03 21:55:59,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 21:55:59,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867333241] [2025-03-03 21:55:59,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867333241] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 21:55:59,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 21:55:59,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 21:55:59,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923350052] [2025-03-03 21:55:59,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 21:55:59,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 21:55:59,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 21:55:59,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 21:55:59,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 21:55:59,490 INFO L87 Difference]: Start difference. First operand 101 states and 158 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:55:59,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 21:55:59,750 INFO L93 Difference]: Finished difference Result 298 states and 469 transitions. [2025-03-03 21:55:59,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 21:55:59,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2025-03-03 21:55:59,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 21:55:59,753 INFO L225 Difference]: With dead ends: 298 [2025-03-03 21:55:59,755 INFO L226 Difference]: Without dead ends: 200 [2025-03-03 21:55:59,756 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 [2025-03-03 21:55:59,757 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 151 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-03 21:55:59,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 519 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-03 21:55:59,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2025-03-03 21:55:59,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 180. [2025-03-03 21:55:59,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 115 states have (on average 1.391304347826087) internal successors, (160), 115 states have internal predecessors, (160), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-03 21:55:59,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 284 transitions. [2025-03-03 21:55:59,782 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 284 transitions. Word has length 197 [2025-03-03 21:55:59,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 21:55:59,784 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 284 transitions. [2025-03-03 21:55:59,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:55:59,784 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 284 transitions. [2025-03-03 21:55:59,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-03 21:55:59,788 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:55:59,788 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:55:59,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 21:55:59,789 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:55:59,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:55:59,789 INFO L85 PathProgramCache]: Analyzing trace with hash -2007897799, now seen corresponding path program 1 times [2025-03-03 21:55:59,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:55:59,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145550666] [2025-03-03 21:55:59,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:55:59,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:55:59,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-03 21:55:59,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-03 21:55:59,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:55:59,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:56:05,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2025-03-03 21:56:05,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 21:56:05,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145550666] [2025-03-03 21:56:05,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145550666] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 21:56:05,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 21:56:05,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-03 21:56:05,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284008298] [2025-03-03 21:56:05,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 21:56:05,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-03 21:56:05,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 21:56:05,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-03 21:56:05,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2025-03-03 21:56:05,077 INFO L87 Difference]: Start difference. First operand 180 states and 284 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:56:07,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 21:56:08,000 INFO L93 Difference]: Finished difference Result 354 states and 545 transitions. [2025-03-03 21:56:08,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-03 21:56:08,001 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2025-03-03 21:56:08,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 21:56:08,003 INFO L225 Difference]: With dead ends: 354 [2025-03-03 21:56:08,003 INFO L226 Difference]: Without dead ends: 256 [2025-03-03 21:56:08,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2025-03-03 21:56:08,007 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 311 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-03 21:56:08,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 968 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-03 21:56:08,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2025-03-03 21:56:08,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 197. [2025-03-03 21:56:08,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 132 states have internal predecessors, (183), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-03 21:56:08,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 307 transitions. [2025-03-03 21:56:08,039 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 307 transitions. Word has length 197 [2025-03-03 21:56:08,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 21:56:08,039 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 307 transitions. [2025-03-03 21:56:08,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:56:08,040 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 307 transitions. [2025-03-03 21:56:08,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-03 21:56:08,042 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:56:08,042 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:56:08,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 21:56:08,042 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:56:08,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:56:08,043 INFO L85 PathProgramCache]: Analyzing trace with hash 490118138, now seen corresponding path program 1 times [2025-03-03 21:56:08,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:56:08,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505495367] [2025-03-03 21:56:08,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:56:08,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:56:08,051 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-03 21:56:08,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-03 21:56:08,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:56:08,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:56:08,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2025-03-03 21:56:08,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 21:56:08,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505495367] [2025-03-03 21:56:08,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505495367] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 21:56:08,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 21:56:08,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 21:56:08,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183328045] [2025-03-03 21:56:08,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 21:56:08,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 21:56:08,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 21:56:08,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 21:56:08,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 21:56:08,107 INFO L87 Difference]: Start difference. First operand 197 states and 307 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:56:08,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 21:56:08,151 INFO L93 Difference]: Finished difference Result 392 states and 615 transitions. [2025-03-03 21:56:08,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 21:56:08,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2025-03-03 21:56:08,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 21:56:08,154 INFO L225 Difference]: With dead ends: 392 [2025-03-03 21:56:08,154 INFO L226 Difference]: Without dead ends: 294 [2025-03-03 21:56:08,155 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 [2025-03-03 21:56:08,156 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 149 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 21:56:08,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 306 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 21:56:08,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2025-03-03 21:56:08,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 292. [2025-03-03 21:56:08,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 195 states have (on average 1.3846153846153846) internal successors, (270), 195 states have internal predecessors, (270), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-03-03 21:56:08,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 456 transitions. [2025-03-03 21:56:08,186 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 456 transitions. Word has length 197 [2025-03-03 21:56:08,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 21:56:08,187 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 456 transitions. [2025-03-03 21:56:08,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:56:08,187 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 456 transitions. [2025-03-03 21:56:08,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-03-03 21:56:08,189 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:56:08,189 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:56:08,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 21:56:08,189 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:56:08,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:56:08,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2027493589, now seen corresponding path program 1 times [2025-03-03 21:56:08,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:56:08,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029930665] [2025-03-03 21:56:08,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:56:08,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:56:08,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-03-03 21:56:08,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-03-03 21:56:08,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:56:08,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:56:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2025-03-03 21:56:13,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 21:56:13,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029930665] [2025-03-03 21:56:13,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029930665] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 21:56:13,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 21:56:13,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-03-03 21:56:13,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558866652] [2025-03-03 21:56:13,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 21:56:13,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-03 21:56:13,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 21:56:13,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-03 21:56:13,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2025-03-03 21:56:13,171 INFO L87 Difference]: Start difference. First operand 292 states and 456 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:56:13,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 21:56:13,994 INFO L93 Difference]: Finished difference Result 342 states and 514 transitions. [2025-03-03 21:56:13,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-03 21:56:13,995 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2025-03-03 21:56:13,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 21:56:13,998 INFO L225 Difference]: With dead ends: 342 [2025-03-03 21:56:13,998 INFO L226 Difference]: Without dead ends: 340 [2025-03-03 21:56:13,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2025-03-03 21:56:13,999 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 297 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 21:56:14,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1083 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 21:56:14,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2025-03-03 21:56:14,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 293. [2025-03-03 21:56:14,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 196 states have (on average 1.3826530612244898) internal successors, (271), 196 states have internal predecessors, (271), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-03-03 21:56:14,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 457 transitions. [2025-03-03 21:56:14,022 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 457 transitions. Word has length 198 [2025-03-03 21:56:14,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 21:56:14,023 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 457 transitions. [2025-03-03 21:56:14,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:56:14,023 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 457 transitions. [2025-03-03 21:56:14,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-03-03 21:56:14,025 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:56:14,025 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:56:14,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 21:56:14,025 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:56:14,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:56:14,027 INFO L85 PathProgramCache]: Analyzing trace with hash 708683112, now seen corresponding path program 1 times [2025-03-03 21:56:14,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:56:14,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553483846] [2025-03-03 21:56:14,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:56:14,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:56:14,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-03-03 21:56:14,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-03-03 21:56:14,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:56:14,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:56:14,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2025-03-03 21:56:14,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 21:56:14,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553483846] [2025-03-03 21:56:14,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553483846] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 21:56:14,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 21:56:14,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 21:56:14,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734405497] [2025-03-03 21:56:14,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 21:56:14,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 21:56:14,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 21:56:14,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 21:56:14,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 21:56:14,216 INFO L87 Difference]: Start difference. First operand 293 states and 457 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:56:14,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 21:56:14,252 INFO L93 Difference]: Finished difference Result 497 states and 776 transitions. [2025-03-03 21:56:14,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 21:56:14,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2025-03-03 21:56:14,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 21:56:14,255 INFO L225 Difference]: With dead ends: 497 [2025-03-03 21:56:14,255 INFO L226 Difference]: Without dead ends: 301 [2025-03-03 21:56:14,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 21:56:14,256 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 6 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 21:56:14,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 288 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 21:56:14,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2025-03-03 21:56:14,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 293. [2025-03-03 21:56:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 196 states have (on average 1.3673469387755102) internal successors, (268), 196 states have internal predecessors, (268), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-03-03 21:56:14,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 454 transitions. [2025-03-03 21:56:14,268 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 454 transitions. Word has length 198 [2025-03-03 21:56:14,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 21:56:14,269 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 454 transitions. [2025-03-03 21:56:14,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:56:14,269 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 454 transitions. [2025-03-03 21:56:14,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-03-03 21:56:14,271 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:56:14,271 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:56:14,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 21:56:14,271 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:56:14,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:56:14,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1596186793, now seen corresponding path program 1 times [2025-03-03 21:56:14,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:56:14,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250159543] [2025-03-03 21:56:14,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:56:14,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:56:14,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-03-03 21:56:14,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-03-03 21:56:14,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:56:14,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:56:16,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2025-03-03 21:56:16,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 21:56:16,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250159543] [2025-03-03 21:56:16,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250159543] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 21:56:16,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 21:56:16,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2025-03-03 21:56:16,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904037775] [2025-03-03 21:56:16,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 21:56:16,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-03 21:56:16,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 21:56:16,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-03 21:56:16,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2025-03-03 21:56:16,822 INFO L87 Difference]: Start difference. First operand 293 states and 454 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2025-03-03 21:56:17,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 21:56:17,906 INFO L93 Difference]: Finished difference Result 342 states and 509 transitions. [2025-03-03 21:56:17,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-03 21:56:17,907 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2025-03-03 21:56:17,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 21:56:17,909 INFO L225 Difference]: With dead ends: 342 [2025-03-03 21:56:17,909 INFO L226 Difference]: Without dead ends: 340 [2025-03-03 21:56:17,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=189, Invalid=623, Unknown=0, NotChecked=0, Total=812 [2025-03-03 21:56:17,910 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 292 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 21:56:17,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1332 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 21:56:17,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2025-03-03 21:56:17,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 293. [2025-03-03 21:56:17,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 196 states have (on average 1.3673469387755102) internal successors, (268), 196 states have internal predecessors, (268), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-03-03 21:56:17,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 454 transitions. [2025-03-03 21:56:17,932 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 454 transitions. Word has length 198 [2025-03-03 21:56:17,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 21:56:17,936 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 454 transitions. [2025-03-03 21:56:17,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2025-03-03 21:56:17,936 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 454 transitions. [2025-03-03 21:56:17,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-03-03 21:56:17,938 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:56:17,941 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:56:17,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 21:56:17,941 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:56:17,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:56:17,942 INFO L85 PathProgramCache]: Analyzing trace with hash 82131527, now seen corresponding path program 1 times [2025-03-03 21:56:17,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:56:17,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732267525] [2025-03-03 21:56:17,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:56:17,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:56:17,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-03-03 21:56:18,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-03-03 21:56:18,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:56:18,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:56:22,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2025-03-03 21:56:22,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 21:56:22,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732267525] [2025-03-03 21:56:22,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732267525] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 21:56:22,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 21:56:22,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-03 21:56:22,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967851969] [2025-03-03 21:56:22,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 21:56:22,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-03 21:56:22,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 21:56:22,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-03 21:56:22,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2025-03-03 21:56:22,188 INFO L87 Difference]: Start difference. First operand 293 states and 454 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2025-03-03 21:56:24,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 21:56:24,304 INFO L93 Difference]: Finished difference Result 363 states and 533 transitions. [2025-03-03 21:56:24,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-03 21:56:24,304 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 198 [2025-03-03 21:56:24,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 21:56:24,306 INFO L225 Difference]: With dead ends: 363 [2025-03-03 21:56:24,306 INFO L226 Difference]: Without dead ends: 361 [2025-03-03 21:56:24,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=285, Invalid=771, Unknown=0, NotChecked=0, Total=1056 [2025-03-03 21:56:24,307 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 581 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-03 21:56:24,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 1192 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-03 21:56:24,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2025-03-03 21:56:24,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 303. [2025-03-03 21:56:24,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 206 states have (on average 1.3640776699029127) internal successors, (281), 206 states have internal predecessors, (281), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-03-03 21:56:24,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 467 transitions. [2025-03-03 21:56:24,322 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 467 transitions. Word has length 198 [2025-03-03 21:56:24,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 21:56:24,322 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 467 transitions. [2025-03-03 21:56:24,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2025-03-03 21:56:24,323 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 467 transitions. [2025-03-03 21:56:24,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-03-03 21:56:24,323 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:56:24,324 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:56:24,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 21:56:24,324 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:56:24,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:56:24,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1725322936, now seen corresponding path program 1 times [2025-03-03 21:56:24,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:56:24,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080678521] [2025-03-03 21:56:24,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:56:24,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:56:24,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-03-03 21:56:24,368 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-03-03 21:56:24,368 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:56:24,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:56:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2025-03-03 21:56:33,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 21:56:33,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080678521] [2025-03-03 21:56:33,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080678521] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 21:56:33,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 21:56:33,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-03 21:56:33,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730248572] [2025-03-03 21:56:33,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 21:56:33,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-03 21:56:33,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 21:56:33,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-03 21:56:33,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2025-03-03 21:56:33,462 INFO L87 Difference]: Start difference. First operand 303 states and 467 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:56:43,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 21:56:43,276 INFO L93 Difference]: Finished difference Result 357 states and 527 transitions. [2025-03-03 21:56:43,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-03 21:56:43,276 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2025-03-03 21:56:43,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 21:56:43,278 INFO L225 Difference]: With dead ends: 357 [2025-03-03 21:56:43,278 INFO L226 Difference]: Without dead ends: 355 [2025-03-03 21:56:43,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=304, Invalid=818, Unknown=0, NotChecked=0, Total=1122 [2025-03-03 21:56:43,280 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 281 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-03-03 21:56:43,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 1039 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-03-03 21:56:43,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2025-03-03 21:56:43,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 303. [2025-03-03 21:56:43,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 206 states have (on average 1.3640776699029127) internal successors, (281), 206 states have internal predecessors, (281), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-03-03 21:56:43,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 467 transitions. [2025-03-03 21:56:43,297 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 467 transitions. Word has length 198 [2025-03-03 21:56:43,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 21:56:43,298 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 467 transitions. [2025-03-03 21:56:43,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:56:43,298 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 467 transitions. [2025-03-03 21:56:43,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2025-03-03 21:56:43,300 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:56:43,300 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:56:43,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 21:56:43,301 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:56:43,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:56:43,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1707746921, now seen corresponding path program 1 times [2025-03-03 21:56:43,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:56:43,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536181285] [2025-03-03 21:56:43,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:56:43,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:56:43,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 199 statements into 1 equivalence classes. [2025-03-03 21:56:43,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 199 of 199 statements. [2025-03-03 21:56:43,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:56:43,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:56:54,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2025-03-03 21:56:54,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 21:56:54,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536181285] [2025-03-03 21:56:54,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536181285] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 21:56:54,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 21:56:54,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-03 21:56:54,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673761435] [2025-03-03 21:56:54,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 21:56:54,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-03 21:56:54,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 21:56:54,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-03 21:56:54,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2025-03-03 21:56:54,385 INFO L87 Difference]: Start difference. First operand 303 states and 467 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:57:01,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 21:57:01,367 INFO L93 Difference]: Finished difference Result 366 states and 538 transitions. [2025-03-03 21:57:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-03 21:57:01,368 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2025-03-03 21:57:01,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 21:57:01,370 INFO L225 Difference]: With dead ends: 366 [2025-03-03 21:57:01,370 INFO L226 Difference]: Without dead ends: 364 [2025-03-03 21:57:01,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=318, Invalid=804, Unknown=0, NotChecked=0, Total=1122 [2025-03-03 21:57:01,371 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 332 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-03 21:57:01,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 975 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-03 21:57:01,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2025-03-03 21:57:01,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 307. [2025-03-03 21:57:01,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 210 states have (on average 1.361904761904762) internal successors, (286), 210 states have internal predecessors, (286), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-03-03 21:57:01,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 472 transitions. [2025-03-03 21:57:01,388 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 472 transitions. Word has length 199 [2025-03-03 21:57:01,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 21:57:01,388 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 472 transitions. [2025-03-03 21:57:01,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2025-03-03 21:57:01,389 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 472 transitions. [2025-03-03 21:57:01,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2025-03-03 21:57:01,390 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:57:01,390 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:57:01,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 21:57:01,390 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:57:01,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:57:01,391 INFO L85 PathProgramCache]: Analyzing trace with hash 779765912, now seen corresponding path program 1 times [2025-03-03 21:57:01,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:57:01,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626468283] [2025-03-03 21:57:01,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:57:01,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:57:01,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 199 statements into 1 equivalence classes. [2025-03-03 21:57:01,427 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 199 of 199 statements. [2025-03-03 21:57:01,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:57:01,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:57:13,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2025-03-03 21:57:13,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 21:57:13,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626468283] [2025-03-03 21:57:13,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626468283] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 21:57:13,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 21:57:13,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2025-03-03 21:57:13,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98503171] [2025-03-03 21:57:13,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 21:57:13,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-03 21:57:13,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 21:57:13,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-03 21:57:13,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2025-03-03 21:57:13,329 INFO L87 Difference]: Start difference. First operand 307 states and 472 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2025-03-03 21:57:22,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 21:57:22,235 INFO L93 Difference]: Finished difference Result 362 states and 533 transitions. [2025-03-03 21:57:22,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-03 21:57:22,236 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 199 [2025-03-03 21:57:22,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 21:57:22,238 INFO L225 Difference]: With dead ends: 362 [2025-03-03 21:57:22,238 INFO L226 Difference]: Without dead ends: 360 [2025-03-03 21:57:22,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=384, Invalid=948, Unknown=0, NotChecked=0, Total=1332 [2025-03-03 21:57:22,239 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 347 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-03-03 21:57:22,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1156 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-03-03 21:57:22,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2025-03-03 21:57:22,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 304. [2025-03-03 21:57:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 207 states have (on average 1.3623188405797102) internal successors, (282), 207 states have internal predecessors, (282), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-03-03 21:57:22,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 468 transitions. [2025-03-03 21:57:22,259 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 468 transitions. Word has length 199 [2025-03-03 21:57:22,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 21:57:22,259 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 468 transitions. [2025-03-03 21:57:22,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2025-03-03 21:57:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 468 transitions. [2025-03-03 21:57:22,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2025-03-03 21:57:22,262 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:57:22,262 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:57:22,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 21:57:22,262 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:57:22,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:57:22,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1970020933, now seen corresponding path program 1 times [2025-03-03 21:57:22,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:57:22,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726911131] [2025-03-03 21:57:22,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:57:22,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:57:22,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 199 statements into 1 equivalence classes. [2025-03-03 21:57:22,299 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 199 of 199 statements. [2025-03-03 21:57:22,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:57:22,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 21:57:24,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2025-03-03 21:57:24,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 21:57:24,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726911131] [2025-03-03 21:57:24,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726911131] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 21:57:24,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 21:57:24,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-03 21:57:24,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290146200] [2025-03-03 21:57:24,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 21:57:24,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-03 21:57:24,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 21:57:24,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-03 21:57:24,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2025-03-03 21:57:24,614 INFO L87 Difference]: Start difference. First operand 304 states and 468 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2025-03-03 21:57:25,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 21:57:25,715 INFO L93 Difference]: Finished difference Result 348 states and 517 transitions. [2025-03-03 21:57:25,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-03 21:57:25,715 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 199 [2025-03-03 21:57:25,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 21:57:25,717 INFO L225 Difference]: With dead ends: 348 [2025-03-03 21:57:25,717 INFO L226 Difference]: Without dead ends: 346 [2025-03-03 21:57:25,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2025-03-03 21:57:25,718 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 449 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 21:57:25,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 1247 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 21:57:25,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2025-03-03 21:57:25,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 301. [2025-03-03 21:57:25,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 204 states have (on average 1.3627450980392157) internal successors, (278), 204 states have internal predecessors, (278), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-03-03 21:57:25,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 464 transitions. [2025-03-03 21:57:25,733 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 464 transitions. Word has length 199 [2025-03-03 21:57:25,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 21:57:25,734 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 464 transitions. [2025-03-03 21:57:25,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2025-03-03 21:57:25,734 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 464 transitions. [2025-03-03 21:57:25,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2025-03-03 21:57:25,735 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 21:57:25,735 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 21:57:25,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 21:57:25,735 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 21:57:25,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 21:57:25,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1660170402, now seen corresponding path program 1 times [2025-03-03 21:57:25,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 21:57:25,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119200193] [2025-03-03 21:57:25,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 21:57:25,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 21:57:25,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 199 statements into 1 equivalence classes. [2025-03-03 21:57:25,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 199 of 199 statements. [2025-03-03 21:57:25,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 21:57:25,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat