./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-96.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-96.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 04a66e3f5e0c01de9542e5e7b3340b25c89da9661ce4bdf3a3b49f3763c62dc2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 00:31:53,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 00:31:53,563 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 00:31:53,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 00:31:53,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 00:31:53,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 00:31:53,593 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 00:31:53,593 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 00:31:53,594 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 00:31:53,594 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 00:31:53,594 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 00:31:53,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 00:31:53,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 00:31:53,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 00:31:53,595 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 00:31:53,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 00:31:53,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 00:31:53,595 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 00:31:53,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 00:31:53,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 00:31:53,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 00:31:53,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 00:31:53,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 00:31:53,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 00:31:53,596 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 00:31:53,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 00:31:53,596 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 00:31:53,596 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 00:31:53,597 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 00:31:53,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 00:31:53,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 00:31:53,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 00:31:53,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 00:31:53,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 00:31:53,597 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 00:31:53,598 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 00:31:53,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 00:31:53,598 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 00:31:53,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 00:31:53,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 00:31:53,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 00:31:53,598 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 00:31:53,598 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 00:31:53,598 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 -> 04a66e3f5e0c01de9542e5e7b3340b25c89da9661ce4bdf3a3b49f3763c62dc2 [2025-03-17 00:31:53,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 00:31:53,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 00:31:53,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 00:31:53,813 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 00:31:53,813 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 00:31:53,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-96.i [2025-03-17 00:31:55,025 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d34f39ef/5eeab3f613ec486ead3b6388c5970172/FLAG6db543c13 [2025-03-17 00:31:55,304 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 00:31:55,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-96.i [2025-03-17 00:31:55,315 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d34f39ef/5eeab3f613ec486ead3b6388c5970172/FLAG6db543c13 [2025-03-17 00:31:55,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d34f39ef/5eeab3f613ec486ead3b6388c5970172 [2025-03-17 00:31:55,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 00:31:55,626 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 00:31:55,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 00:31:55,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 00:31:55,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 00:31:55,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 12:31:55" (1/1) ... [2025-03-17 00:31:55,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37455aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:55, skipping insertion in model container [2025-03-17 00:31:55,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 12:31:55" (1/1) ... [2025-03-17 00:31:55,658 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 00:31:55,765 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-96.i[916,929] [2025-03-17 00:31:55,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 00:31:55,932 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 00:31:55,940 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-96.i[916,929] [2025-03-17 00:31:56,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 00:31:56,025 INFO L204 MainTranslator]: Completed translation [2025-03-17 00:31:56,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56 WrapperNode [2025-03-17 00:31:56,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 00:31:56,027 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 00:31:56,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 00:31:56,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 00:31:56,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56" (1/1) ... [2025-03-17 00:31:56,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56" (1/1) ... [2025-03-17 00:31:56,108 INFO L138 Inliner]: procedures = 26, calls = 132, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 889 [2025-03-17 00:31:56,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 00:31:56,109 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 00:31:56,109 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 00:31:56,109 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 00:31:56,116 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56" (1/1) ... [2025-03-17 00:31:56,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56" (1/1) ... [2025-03-17 00:31:56,130 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56" (1/1) ... [2025-03-17 00:31:56,171 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]. [2025-03-17 00:31:56,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56" (1/1) ... [2025-03-17 00:31:56,172 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56" (1/1) ... [2025-03-17 00:31:56,201 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56" (1/1) ... [2025-03-17 00:31:56,208 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56" (1/1) ... [2025-03-17 00:31:56,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56" (1/1) ... [2025-03-17 00:31:56,228 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56" (1/1) ... [2025-03-17 00:31:56,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 00:31:56,241 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 00:31:56,241 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 00:31:56,241 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 00:31:56,242 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56" (1/1) ... [2025-03-17 00:31:56,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 00:31:56,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 00:31:56,270 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) [2025-03-17 00:31:56,273 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 [2025-03-17 00:31:56,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 00:31:56,291 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 00:31:56,291 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 00:31:56,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 00:31:56,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 00:31:56,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 00:31:56,437 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 00:31:56,438 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 00:31:57,588 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-03-17 00:31:57,590 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 00:31:57,628 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 00:31:57,628 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 00:31:57,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 12:31:57 BoogieIcfgContainer [2025-03-17 00:31:57,629 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 00:31:57,631 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 00:31:57,631 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 00:31:57,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 00:31:57,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 12:31:55" (1/3) ... [2025-03-17 00:31:57,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7364ae32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 12:31:57, skipping insertion in model container [2025-03-17 00:31:57,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:31:56" (2/3) ... [2025-03-17 00:31:57,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7364ae32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 12:31:57, skipping insertion in model container [2025-03-17 00:31:57,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 12:31:57" (3/3) ... [2025-03-17 00:31:57,637 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-96.i [2025-03-17 00:31:57,650 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 00:31:57,653 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-96.i that has 2 procedures, 369 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 00:31:57,710 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 00:31:57,718 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;@6350fff9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 00:31:57,719 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 00:31:57,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 247 states have (on average 1.6032388663967612) internal successors, (396), 248 states have internal predecessors, (396), 119 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) [2025-03-17 00:31:57,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2025-03-17 00:31:57,746 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:31:57,747 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:31:57,747 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:31:57,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:31:57,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1758762138, now seen corresponding path program 1 times [2025-03-17 00:31:57,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:31:57,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741523118] [2025-03-17 00:31:57,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:31:57,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:31:57,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 751 statements into 1 equivalence classes. [2025-03-17 00:31:57,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 751 of 751 statements. [2025-03-17 00:31:57,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:31:57,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:31:58,426 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 27848 trivial. 0 not checked. [2025-03-17 00:31:58,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:31:58,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741523118] [2025-03-17 00:31:58,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741523118] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 00:31:58,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336875272] [2025-03-17 00:31:58,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:31:58,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 00:31:58,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 00:31:58,431 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) [2025-03-17 00:31:58,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 00:31:58,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 751 statements into 1 equivalence classes. [2025-03-17 00:31:58,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 751 of 751 statements. [2025-03-17 00:31:58,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:31:58,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:31:58,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 1669 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 00:31:58,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 00:31:58,927 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 27848 trivial. 0 not checked. [2025-03-17 00:31:58,927 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 00:31:58,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336875272] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:31:58,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 00:31:58,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 00:31:58,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336631470] [2025-03-17 00:31:58,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:31:58,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 00:31:58,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:31:58,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 00:31:58,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 00:31:58,960 INFO L87 Difference]: Start difference. First operand has 369 states, 247 states have (on average 1.6032388663967612) internal successors, (396), 248 states have internal predecessors, (396), 119 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) Second operand has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 2 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 2 states have call successors, (119) [2025-03-17 00:31:59,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:31:59,062 INFO L93 Difference]: Finished difference Result 731 states and 1377 transitions. [2025-03-17 00:31:59,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 00:31:59,066 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 2 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 2 states have call successors, (119) Word has length 751 [2025-03-17 00:31:59,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:31:59,075 INFO L225 Difference]: With dead ends: 731 [2025-03-17 00:31:59,075 INFO L226 Difference]: Without dead ends: 363 [2025-03-17 00:31:59,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 752 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 00:31:59,087 INFO L435 NwaCegarLoop]: 595 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 00:31:59,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 595 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 00:31:59,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2025-03-17 00:31:59,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2025-03-17 00:31:59,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 242 states have (on average 1.5495867768595042) internal successors, (375), 242 states have internal predecessors, (375), 119 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) [2025-03-17 00:31:59,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 613 transitions. [2025-03-17 00:31:59,184 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 613 transitions. Word has length 751 [2025-03-17 00:31:59,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:31:59,185 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 613 transitions. [2025-03-17 00:31:59,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 2 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 2 states have call successors, (119) [2025-03-17 00:31:59,186 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 613 transitions. [2025-03-17 00:31:59,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2025-03-17 00:31:59,203 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:31:59,204 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:31:59,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 00:31:59,409 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 [2025-03-17 00:31:59,409 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:31:59,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:31:59,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1249736053, now seen corresponding path program 1 times [2025-03-17 00:31:59,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:31:59,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47964804] [2025-03-17 00:31:59,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:31:59,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:31:59,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 751 statements into 1 equivalence classes. [2025-03-17 00:31:59,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 751 of 751 statements. [2025-03-17 00:31:59,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:31:59,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:00,259 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:00,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:00,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47964804] [2025-03-17 00:32:00,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47964804] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:00,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:00,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 00:32:00,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698582548] [2025-03-17 00:32:00,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:00,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 00:32:00,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:00,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 00:32:00,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 00:32:00,267 INFO L87 Difference]: Start difference. First operand 363 states and 613 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:00,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:00,677 INFO L93 Difference]: Finished difference Result 1363 states and 2307 transitions. [2025-03-17 00:32:00,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 00:32:00,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 751 [2025-03-17 00:32:00,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:00,688 INFO L225 Difference]: With dead ends: 1363 [2025-03-17 00:32:00,691 INFO L226 Difference]: Without dead ends: 1001 [2025-03-17 00:32:00,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 00:32:00,694 INFO L435 NwaCegarLoop]: 1244 mSDtfsCounter, 886 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:00,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 2910 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 00:32:00,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2025-03-17 00:32:00,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 992. [2025-03-17 00:32:00,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 725 states have (on average 1.5931034482758621) internal successors, (1155), 728 states have internal predecessors, (1155), 262 states have call successors, (262), 4 states have call predecessors, (262), 4 states have return successors, (262), 259 states have call predecessors, (262), 262 states have call successors, (262) [2025-03-17 00:32:00,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1679 transitions. [2025-03-17 00:32:00,820 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1679 transitions. Word has length 751 [2025-03-17 00:32:00,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:00,821 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1679 transitions. [2025-03-17 00:32:00,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:00,821 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1679 transitions. [2025-03-17 00:32:00,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2025-03-17 00:32:00,832 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:00,833 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:00,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 00:32:00,833 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:00,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:00,834 INFO L85 PathProgramCache]: Analyzing trace with hash -677834140, now seen corresponding path program 1 times [2025-03-17 00:32:00,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:00,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720687187] [2025-03-17 00:32:00,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:00,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:00,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 752 statements into 1 equivalence classes. [2025-03-17 00:32:00,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 752 of 752 statements. [2025-03-17 00:32:00,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:00,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:01,106 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:01,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:01,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720687187] [2025-03-17 00:32:01,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720687187] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:01,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:01,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 00:32:01,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50399108] [2025-03-17 00:32:01,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:01,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 00:32:01,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:01,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 00:32:01,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 00:32:01,112 INFO L87 Difference]: Start difference. First operand 992 states and 1679 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:01,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:01,348 INFO L93 Difference]: Finished difference Result 2966 states and 5019 transitions. [2025-03-17 00:32:01,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 00:32:01,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 752 [2025-03-17 00:32:01,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:01,367 INFO L225 Difference]: With dead ends: 2966 [2025-03-17 00:32:01,368 INFO L226 Difference]: Without dead ends: 1975 [2025-03-17 00:32:01,372 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 [2025-03-17 00:32:01,372 INFO L435 NwaCegarLoop]: 586 mSDtfsCounter, 596 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:01,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 1158 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 00:32:01,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2025-03-17 00:32:01,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1972. [2025-03-17 00:32:01,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1972 states, 1439 states have (on average 1.5726198749131342) internal successors, (2263), 1445 states have internal predecessors, (2263), 524 states have call successors, (524), 8 states have call predecessors, (524), 8 states have return successors, (524), 518 states have call predecessors, (524), 524 states have call successors, (524) [2025-03-17 00:32:01,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 3311 transitions. [2025-03-17 00:32:01,516 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 3311 transitions. Word has length 752 [2025-03-17 00:32:01,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:01,518 INFO L471 AbstractCegarLoop]: Abstraction has 1972 states and 3311 transitions. [2025-03-17 00:32:01,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:01,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 3311 transitions. [2025-03-17 00:32:01,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2025-03-17 00:32:01,527 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:01,527 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:01,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 00:32:01,527 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:01,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:01,528 INFO L85 PathProgramCache]: Analyzing trace with hash -783678294, now seen corresponding path program 1 times [2025-03-17 00:32:01,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:01,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243747233] [2025-03-17 00:32:01,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:01,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:01,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 753 statements into 1 equivalence classes. [2025-03-17 00:32:01,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 753 of 753 statements. [2025-03-17 00:32:01,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:01,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:01,817 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:01,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:01,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243747233] [2025-03-17 00:32:01,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243747233] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:01,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:01,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 00:32:01,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300102250] [2025-03-17 00:32:01,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:01,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 00:32:01,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:01,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 00:32:01,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 00:32:01,820 INFO L87 Difference]: Start difference. First operand 1972 states and 3311 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:02,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:02,027 INFO L93 Difference]: Finished difference Result 5486 states and 9220 transitions. [2025-03-17 00:32:02,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 00:32:02,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 753 [2025-03-17 00:32:02,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:02,049 INFO L225 Difference]: With dead ends: 5486 [2025-03-17 00:32:02,051 INFO L226 Difference]: Without dead ends: 3515 [2025-03-17 00:32:02,059 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 [2025-03-17 00:32:02,062 INFO L435 NwaCegarLoop]: 586 mSDtfsCounter, 309 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:02,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 1158 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 00:32:02,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2025-03-17 00:32:02,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 3505. [2025-03-17 00:32:02,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3505 states, 2692 states have (on average 1.5835809806835066) internal successors, (4263), 2706 states have internal predecessors, (4263), 796 states have call successors, (796), 16 states have call predecessors, (796), 16 states have return successors, (796), 782 states have call predecessors, (796), 796 states have call successors, (796) [2025-03-17 00:32:02,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3505 states to 3505 states and 5855 transitions. [2025-03-17 00:32:02,296 INFO L78 Accepts]: Start accepts. Automaton has 3505 states and 5855 transitions. Word has length 753 [2025-03-17 00:32:02,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:02,299 INFO L471 AbstractCegarLoop]: Abstraction has 3505 states and 5855 transitions. [2025-03-17 00:32:02,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:02,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3505 states and 5855 transitions. [2025-03-17 00:32:02,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2025-03-17 00:32:02,309 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:02,310 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:02,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 00:32:02,310 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:02,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:02,311 INFO L85 PathProgramCache]: Analyzing trace with hash 962698536, now seen corresponding path program 1 times [2025-03-17 00:32:02,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:02,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723466871] [2025-03-17 00:32:02,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:02,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:02,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 753 statements into 1 equivalence classes. [2025-03-17 00:32:02,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 753 of 753 statements. [2025-03-17 00:32:02,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:02,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:02,559 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:02,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:02,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723466871] [2025-03-17 00:32:02,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723466871] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:02,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:02,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 00:32:02,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535063890] [2025-03-17 00:32:02,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:02,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 00:32:02,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:02,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 00:32:02,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 00:32:02,563 INFO L87 Difference]: Start difference. First operand 3505 states and 5855 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:02,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:02,814 INFO L93 Difference]: Finished difference Result 7459 states and 12458 transitions. [2025-03-17 00:32:02,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 00:32:02,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 753 [2025-03-17 00:32:02,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:02,841 INFO L225 Difference]: With dead ends: 7459 [2025-03-17 00:32:02,842 INFO L226 Difference]: Without dead ends: 3955 [2025-03-17 00:32:02,851 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 [2025-03-17 00:32:02,852 INFO L435 NwaCegarLoop]: 595 mSDtfsCounter, 316 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:02,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1167 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 00:32:02,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2025-03-17 00:32:03,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3233. [2025-03-17 00:32:03,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3233 states, 2748 states have (on average 1.6313682678311499) internal successors, (4483), 2754 states have internal predecessors, (4483), 472 states have call successors, (472), 12 states have call predecessors, (472), 12 states have return successors, (472), 466 states have call predecessors, (472), 472 states have call successors, (472) [2025-03-17 00:32:03,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3233 states to 3233 states and 5427 transitions. [2025-03-17 00:32:03,021 INFO L78 Accepts]: Start accepts. Automaton has 3233 states and 5427 transitions. Word has length 753 [2025-03-17 00:32:03,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:03,023 INFO L471 AbstractCegarLoop]: Abstraction has 3233 states and 5427 transitions. [2025-03-17 00:32:03,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:03,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3233 states and 5427 transitions. [2025-03-17 00:32:03,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2025-03-17 00:32:03,031 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:03,031 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:03,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 00:32:03,031 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:03,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:03,032 INFO L85 PathProgramCache]: Analyzing trace with hash 118226665, now seen corresponding path program 1 times [2025-03-17 00:32:03,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:03,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343883515] [2025-03-17 00:32:03,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:03,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:03,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 753 statements into 1 equivalence classes. [2025-03-17 00:32:03,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 753 of 753 statements. [2025-03-17 00:32:03,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:03,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:03,257 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:03,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:03,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343883515] [2025-03-17 00:32:03,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343883515] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:03,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:03,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 00:32:03,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990342961] [2025-03-17 00:32:03,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:03,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 00:32:03,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:03,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 00:32:03,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 00:32:03,260 INFO L87 Difference]: Start difference. First operand 3233 states and 5427 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:03,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:03,447 INFO L93 Difference]: Finished difference Result 7537 states and 12556 transitions. [2025-03-17 00:32:03,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 00:32:03,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 753 [2025-03-17 00:32:03,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:03,472 INFO L225 Difference]: With dead ends: 7537 [2025-03-17 00:32:03,472 INFO L226 Difference]: Without dead ends: 4305 [2025-03-17 00:32:03,481 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 [2025-03-17 00:32:03,482 INFO L435 NwaCegarLoop]: 896 mSDtfsCounter, 336 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:03,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1480 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 00:32:03,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4305 states. [2025-03-17 00:32:03,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4305 to 4301. [2025-03-17 00:32:03,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 3348 states have (on average 1.5695937873357229) internal successors, (5255), 3362 states have internal predecessors, (5255), 928 states have call successors, (928), 24 states have call predecessors, (928), 24 states have return successors, (928), 914 states have call predecessors, (928), 928 states have call successors, (928) [2025-03-17 00:32:03,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 7111 transitions. [2025-03-17 00:32:03,808 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 7111 transitions. Word has length 753 [2025-03-17 00:32:03,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:03,810 INFO L471 AbstractCegarLoop]: Abstraction has 4301 states and 7111 transitions. [2025-03-17 00:32:03,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:03,810 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 7111 transitions. [2025-03-17 00:32:03,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2025-03-17 00:32:03,825 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:03,825 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:03,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 00:32:03,826 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:03,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:03,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1625778474, now seen corresponding path program 1 times [2025-03-17 00:32:03,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:03,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830189634] [2025-03-17 00:32:03,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:03,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:03,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 753 statements into 1 equivalence classes. [2025-03-17 00:32:03,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 753 of 753 statements. [2025-03-17 00:32:03,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:03,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:04,096 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:04,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:04,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830189634] [2025-03-17 00:32:04,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830189634] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:04,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:04,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 00:32:04,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853692786] [2025-03-17 00:32:04,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:04,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 00:32:04,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:04,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 00:32:04,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 00:32:04,100 INFO L87 Difference]: Start difference. First operand 4301 states and 7111 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:04,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:04,459 INFO L93 Difference]: Finished difference Result 12901 states and 21331 transitions. [2025-03-17 00:32:04,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 00:32:04,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 753 [2025-03-17 00:32:04,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:04,503 INFO L225 Difference]: With dead ends: 12901 [2025-03-17 00:32:04,506 INFO L226 Difference]: Without dead ends: 8601 [2025-03-17 00:32:04,518 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 [2025-03-17 00:32:04,519 INFO L435 NwaCegarLoop]: 607 mSDtfsCounter, 586 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:04,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1194 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 00:32:04,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8601 states. [2025-03-17 00:32:04,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8601 to 8599. [2025-03-17 00:32:04,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8599 states, 6694 states have (on average 1.56139826710487) internal successors, (10452), 6722 states have internal predecessors, (10452), 1856 states have call successors, (1856), 48 states have call predecessors, (1856), 48 states have return successors, (1856), 1828 states have call predecessors, (1856), 1856 states have call successors, (1856) [2025-03-17 00:32:04,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8599 states to 8599 states and 14164 transitions. [2025-03-17 00:32:05,002 INFO L78 Accepts]: Start accepts. Automaton has 8599 states and 14164 transitions. Word has length 753 [2025-03-17 00:32:05,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:05,003 INFO L471 AbstractCegarLoop]: Abstraction has 8599 states and 14164 transitions. [2025-03-17 00:32:05,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:05,004 INFO L276 IsEmpty]: Start isEmpty. Operand 8599 states and 14164 transitions. [2025-03-17 00:32:05,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2025-03-17 00:32:05,023 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:05,023 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:05,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 00:32:05,023 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:05,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:05,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1120219849, now seen corresponding path program 1 times [2025-03-17 00:32:05,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:05,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138409503] [2025-03-17 00:32:05,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:05,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:05,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 753 statements into 1 equivalence classes. [2025-03-17 00:32:05,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 753 of 753 statements. [2025-03-17 00:32:05,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:05,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:05,410 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:05,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:05,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138409503] [2025-03-17 00:32:05,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138409503] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:05,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:05,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 00:32:05,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233112695] [2025-03-17 00:32:05,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:05,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 00:32:05,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:05,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 00:32:05,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 00:32:05,412 INFO L87 Difference]: Start difference. First operand 8599 states and 14164 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:05,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:05,747 INFO L93 Difference]: Finished difference Result 17233 states and 28399 transitions. [2025-03-17 00:32:05,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 00:32:05,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 753 [2025-03-17 00:32:05,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:05,794 INFO L225 Difference]: With dead ends: 17233 [2025-03-17 00:32:05,795 INFO L226 Difference]: Without dead ends: 8635 [2025-03-17 00:32:05,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 00:32:05,818 INFO L435 NwaCegarLoop]: 594 mSDtfsCounter, 0 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:05,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1170 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 00:32:05,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8635 states. [2025-03-17 00:32:06,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8635 to 8635. [2025-03-17 00:32:06,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8635 states, 6730 states have (on average 1.5583952451708767) internal successors, (10488), 6758 states have internal predecessors, (10488), 1856 states have call successors, (1856), 48 states have call predecessors, (1856), 48 states have return successors, (1856), 1828 states have call predecessors, (1856), 1856 states have call successors, (1856) [2025-03-17 00:32:06,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8635 states to 8635 states and 14200 transitions. [2025-03-17 00:32:06,274 INFO L78 Accepts]: Start accepts. Automaton has 8635 states and 14200 transitions. Word has length 753 [2025-03-17 00:32:06,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:06,275 INFO L471 AbstractCegarLoop]: Abstraction has 8635 states and 14200 transitions. [2025-03-17 00:32:06,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:06,277 INFO L276 IsEmpty]: Start isEmpty. Operand 8635 states and 14200 transitions. [2025-03-17 00:32:06,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2025-03-17 00:32:06,291 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:06,292 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:06,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 00:32:06,292 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:06,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:06,293 INFO L85 PathProgramCache]: Analyzing trace with hash 512142986, now seen corresponding path program 1 times [2025-03-17 00:32:06,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:06,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244975745] [2025-03-17 00:32:06,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:06,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:06,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 753 statements into 1 equivalence classes. [2025-03-17 00:32:06,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 753 of 753 statements. [2025-03-17 00:32:06,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:06,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:06,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:06,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244975745] [2025-03-17 00:32:06,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244975745] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:06,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:06,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 00:32:06,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561818516] [2025-03-17 00:32:06,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:06,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 00:32:06,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:06,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 00:32:06,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 00:32:06,882 INFO L87 Difference]: Start difference. First operand 8635 states and 14200 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:07,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:07,491 INFO L93 Difference]: Finished difference Result 25867 states and 42562 transitions. [2025-03-17 00:32:07,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 00:32:07,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 753 [2025-03-17 00:32:07,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:07,560 INFO L225 Difference]: With dead ends: 25867 [2025-03-17 00:32:07,561 INFO L226 Difference]: Without dead ends: 17233 [2025-03-17 00:32:07,590 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 [2025-03-17 00:32:07,594 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 402 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:07,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 1369 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 00:32:07,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17233 states. [2025-03-17 00:32:08,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17233 to 17231. [2025-03-17 00:32:08,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17231 states, 13422 states have (on average 1.557293994933691) internal successors, (20902), 13478 states have internal predecessors, (20902), 3712 states have call successors, (3712), 96 states have call predecessors, (3712), 96 states have return successors, (3712), 3656 states have call predecessors, (3712), 3712 states have call successors, (3712) [2025-03-17 00:32:08,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17231 states to 17231 states and 28326 transitions. [2025-03-17 00:32:08,458 INFO L78 Accepts]: Start accepts. Automaton has 17231 states and 28326 transitions. Word has length 753 [2025-03-17 00:32:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:08,460 INFO L471 AbstractCegarLoop]: Abstraction has 17231 states and 28326 transitions. [2025-03-17 00:32:08,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 17231 states and 28326 transitions. [2025-03-17 00:32:08,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2025-03-17 00:32:08,476 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:08,477 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:08,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 00:32:08,477 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:08,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:08,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1574890099, now seen corresponding path program 1 times [2025-03-17 00:32:08,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:08,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245327395] [2025-03-17 00:32:08,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:08,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:08,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 755 statements into 1 equivalence classes. [2025-03-17 00:32:08,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 755 of 755 statements. [2025-03-17 00:32:08,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:08,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:08,686 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:08,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:08,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245327395] [2025-03-17 00:32:08,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245327395] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:08,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:08,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 00:32:08,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705774525] [2025-03-17 00:32:08,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:08,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 00:32:08,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:08,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 00:32:08,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 00:32:08,688 INFO L87 Difference]: Start difference. First operand 17231 states and 28326 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:09,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:09,276 INFO L93 Difference]: Finished difference Result 34881 states and 57238 transitions. [2025-03-17 00:32:09,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 00:32:09,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 755 [2025-03-17 00:32:09,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:09,356 INFO L225 Difference]: With dead ends: 34881 [2025-03-17 00:32:09,357 INFO L226 Difference]: Without dead ends: 17651 [2025-03-17 00:32:09,410 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 [2025-03-17 00:32:09,411 INFO L435 NwaCegarLoop]: 795 mSDtfsCounter, 363 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:09,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1363 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 00:32:09,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17651 states. [2025-03-17 00:32:10,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17651 to 15153. [2025-03-17 00:32:10,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15153 states, 12432 states have (on average 1.5672458172458172) internal successors, (19484), 12456 states have internal predecessors, (19484), 2624 states have call successors, (2624), 96 states have call predecessors, (2624), 96 states have return successors, (2624), 2600 states have call predecessors, (2624), 2624 states have call successors, (2624) [2025-03-17 00:32:10,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15153 states to 15153 states and 24732 transitions. [2025-03-17 00:32:10,530 INFO L78 Accepts]: Start accepts. Automaton has 15153 states and 24732 transitions. Word has length 755 [2025-03-17 00:32:10,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:10,531 INFO L471 AbstractCegarLoop]: Abstraction has 15153 states and 24732 transitions. [2025-03-17 00:32:10,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:10,531 INFO L276 IsEmpty]: Start isEmpty. Operand 15153 states and 24732 transitions. [2025-03-17 00:32:10,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2025-03-17 00:32:10,548 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:10,548 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:10,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 00:32:10,549 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:10,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:10,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1154016318, now seen corresponding path program 1 times [2025-03-17 00:32:10,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:10,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078572724] [2025-03-17 00:32:10,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:10,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:10,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 756 statements into 1 equivalence classes. [2025-03-17 00:32:10,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 756 of 756 statements. [2025-03-17 00:32:10,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:10,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:10,933 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:10,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:10,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078572724] [2025-03-17 00:32:10,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078572724] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:10,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:10,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 00:32:10,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798271059] [2025-03-17 00:32:10,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:10,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 00:32:10,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:10,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 00:32:10,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 00:32:10,936 INFO L87 Difference]: Start difference. First operand 15153 states and 24732 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:11,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:11,405 INFO L93 Difference]: Finished difference Result 30305 states and 49463 transitions. [2025-03-17 00:32:11,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 00:32:11,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 756 [2025-03-17 00:32:11,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:11,481 INFO L225 Difference]: With dead ends: 30305 [2025-03-17 00:32:11,482 INFO L226 Difference]: Without dead ends: 15153 [2025-03-17 00:32:11,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 00:32:11,515 INFO L435 NwaCegarLoop]: 593 mSDtfsCounter, 0 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:11,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1169 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 00:32:11,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15153 states. [2025-03-17 00:32:12,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15153 to 15117. [2025-03-17 00:32:12,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15117 states, 12396 states have (on average 1.563084866085834) internal successors, (19376), 12420 states have internal predecessors, (19376), 2624 states have call successors, (2624), 96 states have call predecessors, (2624), 96 states have return successors, (2624), 2600 states have call predecessors, (2624), 2624 states have call successors, (2624) [2025-03-17 00:32:12,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15117 states to 15117 states and 24624 transitions. [2025-03-17 00:32:12,150 INFO L78 Accepts]: Start accepts. Automaton has 15117 states and 24624 transitions. Word has length 756 [2025-03-17 00:32:12,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:12,151 INFO L471 AbstractCegarLoop]: Abstraction has 15117 states and 24624 transitions. [2025-03-17 00:32:12,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:12,152 INFO L276 IsEmpty]: Start isEmpty. Operand 15117 states and 24624 transitions. [2025-03-17 00:32:12,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2025-03-17 00:32:12,168 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:12,169 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:12,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 00:32:12,170 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:12,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:12,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1762093181, now seen corresponding path program 1 times [2025-03-17 00:32:12,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:12,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021356557] [2025-03-17 00:32:12,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:12,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:12,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 756 statements into 1 equivalence classes. [2025-03-17 00:32:12,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 756 of 756 statements. [2025-03-17 00:32:12,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:12,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:12,752 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:12,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:12,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021356557] [2025-03-17 00:32:12,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021356557] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:12,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:12,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 00:32:12,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689175338] [2025-03-17 00:32:12,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:12,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 00:32:12,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:12,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 00:32:12,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 00:32:12,755 INFO L87 Difference]: Start difference. First operand 15117 states and 24624 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:13,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:13,420 INFO L93 Difference]: Finished difference Result 44645 states and 72670 transitions. [2025-03-17 00:32:13,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 00:32:13,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 756 [2025-03-17 00:32:13,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:13,582 INFO L225 Difference]: With dead ends: 44645 [2025-03-17 00:32:13,583 INFO L226 Difference]: Without dead ends: 29529 [2025-03-17 00:32:13,645 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 [2025-03-17 00:32:13,645 INFO L435 NwaCegarLoop]: 587 mSDtfsCounter, 362 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:13,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1167 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 00:32:13,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29529 states. [2025-03-17 00:32:14,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29529 to 29423. [2025-03-17 00:32:14,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29423 states, 23982 states have (on average 1.5547493953798683) internal successors, (37286), 24030 states have internal predecessors, (37286), 5248 states have call successors, (5248), 192 states have call predecessors, (5248), 192 states have return successors, (5248), 5200 states have call predecessors, (5248), 5248 states have call successors, (5248) [2025-03-17 00:32:14,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29423 states to 29423 states and 47782 transitions. [2025-03-17 00:32:14,841 INFO L78 Accepts]: Start accepts. Automaton has 29423 states and 47782 transitions. Word has length 756 [2025-03-17 00:32:14,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:14,842 INFO L471 AbstractCegarLoop]: Abstraction has 29423 states and 47782 transitions. [2025-03-17 00:32:14,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:14,843 INFO L276 IsEmpty]: Start isEmpty. Operand 29423 states and 47782 transitions. [2025-03-17 00:32:14,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2025-03-17 00:32:14,861 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:14,862 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:14,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 00:32:14,862 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:14,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:14,862 INFO L85 PathProgramCache]: Analyzing trace with hash -316285111, now seen corresponding path program 1 times [2025-03-17 00:32:14,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:14,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657409378] [2025-03-17 00:32:14,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:14,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:15,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 758 statements into 1 equivalence classes. [2025-03-17 00:32:15,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 758 of 758 statements. [2025-03-17 00:32:15,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:15,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:15,513 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:15,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:15,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657409378] [2025-03-17 00:32:15,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657409378] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:15,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:15,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 00:32:15,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099674454] [2025-03-17 00:32:15,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:15,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 00:32:15,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:15,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 00:32:15,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 00:32:15,516 INFO L87 Difference]: Start difference. First operand 29423 states and 47782 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:16,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:16,758 INFO L93 Difference]: Finished difference Result 58845 states and 95563 transitions. [2025-03-17 00:32:16,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 00:32:16,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 758 [2025-03-17 00:32:16,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:16,890 INFO L225 Difference]: With dead ends: 58845 [2025-03-17 00:32:16,890 INFO L226 Difference]: Without dead ends: 29423 [2025-03-17 00:32:16,963 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 [2025-03-17 00:32:16,964 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 340 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:16,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 590 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 00:32:16,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29423 states. [2025-03-17 00:32:18,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29423 to 29423. [2025-03-17 00:32:18,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29423 states, 23982 states have (on average 1.5520807272120758) internal successors, (37222), 24030 states have internal predecessors, (37222), 5248 states have call successors, (5248), 192 states have call predecessors, (5248), 192 states have return successors, (5248), 5200 states have call predecessors, (5248), 5248 states have call successors, (5248) [2025-03-17 00:32:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29423 states to 29423 states and 47718 transitions. [2025-03-17 00:32:18,705 INFO L78 Accepts]: Start accepts. Automaton has 29423 states and 47718 transitions. Word has length 758 [2025-03-17 00:32:18,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:18,706 INFO L471 AbstractCegarLoop]: Abstraction has 29423 states and 47718 transitions. [2025-03-17 00:32:18,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:18,707 INFO L276 IsEmpty]: Start isEmpty. Operand 29423 states and 47718 transitions. [2025-03-17 00:32:18,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2025-03-17 00:32:18,722 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:18,722 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:18,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 00:32:18,722 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:18,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:18,723 INFO L85 PathProgramCache]: Analyzing trace with hash -937142839, now seen corresponding path program 1 times [2025-03-17 00:32:18,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:18,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860037852] [2025-03-17 00:32:18,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:18,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:18,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 760 statements into 1 equivalence classes. [2025-03-17 00:32:18,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 760 of 760 statements. [2025-03-17 00:32:18,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:18,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:19,422 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:19,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:19,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860037852] [2025-03-17 00:32:19,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860037852] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:19,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:19,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 00:32:19,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265838994] [2025-03-17 00:32:19,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:19,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 00:32:19,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:19,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 00:32:19,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 00:32:19,426 INFO L87 Difference]: Start difference. First operand 29423 states and 47718 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:21,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:21,933 INFO L93 Difference]: Finished difference Result 72623 states and 116901 transitions. [2025-03-17 00:32:21,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 00:32:21,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 760 [2025-03-17 00:32:21,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:22,122 INFO L225 Difference]: With dead ends: 72623 [2025-03-17 00:32:22,122 INFO L226 Difference]: Without dead ends: 43201 [2025-03-17 00:32:22,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-03-17 00:32:22,196 INFO L435 NwaCegarLoop]: 589 mSDtfsCounter, 474 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:22,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 2458 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-17 00:32:22,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43201 states. [2025-03-17 00:32:24,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43201 to 39183. [2025-03-17 00:32:24,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39183 states, 29774 states have (on average 1.5064821656478806) internal successors, (44854), 29886 states have internal predecessors, (44854), 9024 states have call successors, (9024), 384 states have call predecessors, (9024), 384 states have return successors, (9024), 8912 states have call predecessors, (9024), 9024 states have call successors, (9024) [2025-03-17 00:32:25,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39183 states to 39183 states and 62902 transitions. [2025-03-17 00:32:25,109 INFO L78 Accepts]: Start accepts. Automaton has 39183 states and 62902 transitions. Word has length 760 [2025-03-17 00:32:25,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:25,110 INFO L471 AbstractCegarLoop]: Abstraction has 39183 states and 62902 transitions. [2025-03-17 00:32:25,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:25,110 INFO L276 IsEmpty]: Start isEmpty. Operand 39183 states and 62902 transitions. [2025-03-17 00:32:25,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2025-03-17 00:32:25,128 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:25,129 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:25,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 00:32:25,129 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:25,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:25,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1445980665, now seen corresponding path program 1 times [2025-03-17 00:32:25,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:25,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330869466] [2025-03-17 00:32:25,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:25,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:25,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 760 statements into 1 equivalence classes. [2025-03-17 00:32:25,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 760 of 760 statements. [2025-03-17 00:32:25,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:25,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:25,724 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:25,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:25,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330869466] [2025-03-17 00:32:25,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330869466] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:25,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:25,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 00:32:25,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987340688] [2025-03-17 00:32:25,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:25,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 00:32:25,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:25,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 00:32:25,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 00:32:25,729 INFO L87 Difference]: Start difference. First operand 39183 states and 62902 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:27,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:27,617 INFO L93 Difference]: Finished difference Result 91265 states and 146448 transitions. [2025-03-17 00:32:27,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 00:32:27,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 760 [2025-03-17 00:32:27,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:27,835 INFO L225 Difference]: With dead ends: 91265 [2025-03-17 00:32:27,835 INFO L226 Difference]: Without dead ends: 52083 [2025-03-17 00:32:27,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 00:32:27,942 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 579 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:27,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1763 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 00:32:27,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52083 states. [2025-03-17 00:32:30,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52083 to 50545. [2025-03-17 00:32:30,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50545 states, 41013 states have (on average 1.5350254797259406) internal successors, (62956), 41125 states have internal predecessors, (62956), 9143 states have call successors, (9143), 388 states have call predecessors, (9143), 388 states have return successors, (9143), 9031 states have call predecessors, (9143), 9143 states have call successors, (9143) [2025-03-17 00:32:30,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50545 states to 50545 states and 81242 transitions. [2025-03-17 00:32:31,054 INFO L78 Accepts]: Start accepts. Automaton has 50545 states and 81242 transitions. Word has length 760 [2025-03-17 00:32:31,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:31,056 INFO L471 AbstractCegarLoop]: Abstraction has 50545 states and 81242 transitions. [2025-03-17 00:32:31,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:31,057 INFO L276 IsEmpty]: Start isEmpty. Operand 50545 states and 81242 transitions. [2025-03-17 00:32:31,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2025-03-17 00:32:31,087 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:31,088 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:31,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 00:32:31,088 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:31,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:31,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1052035272, now seen corresponding path program 1 times [2025-03-17 00:32:31,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:31,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807874200] [2025-03-17 00:32:31,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:31,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:31,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 760 statements into 1 equivalence classes. [2025-03-17 00:32:31,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 760 of 760 statements. [2025-03-17 00:32:31,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:31,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:32,029 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:32,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:32,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807874200] [2025-03-17 00:32:32,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807874200] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:32,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:32,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 00:32:32,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309579807] [2025-03-17 00:32:32,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:32,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 00:32:32,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:32,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 00:32:32,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 00:32:32,032 INFO L87 Difference]: Start difference. First operand 50545 states and 81242 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:35,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:32:35,524 INFO L93 Difference]: Finished difference Result 149778 states and 240710 transitions. [2025-03-17 00:32:35,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 00:32:35,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 760 [2025-03-17 00:32:35,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:32:35,898 INFO L225 Difference]: With dead ends: 149778 [2025-03-17 00:32:35,898 INFO L226 Difference]: Without dead ends: 101029 [2025-03-17 00:32:36,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 00:32:36,015 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 385 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 00:32:36,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1522 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 00:32:36,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101029 states. [2025-03-17 00:32:40,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101029 to 100825. [2025-03-17 00:32:41,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100825 states, 81885 states have (on average 1.5328570556267938) internal successors, (125518), 82109 states have internal predecessors, (125518), 18167 states have call successors, (18167), 772 states have call predecessors, (18167), 772 states have return successors, (18167), 17943 states have call predecessors, (18167), 18167 states have call successors, (18167) [2025-03-17 00:32:41,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100825 states to 100825 states and 161852 transitions. [2025-03-17 00:32:41,325 INFO L78 Accepts]: Start accepts. Automaton has 100825 states and 161852 transitions. Word has length 760 [2025-03-17 00:32:41,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:32:41,326 INFO L471 AbstractCegarLoop]: Abstraction has 100825 states and 161852 transitions. [2025-03-17 00:32:41,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2025-03-17 00:32:41,326 INFO L276 IsEmpty]: Start isEmpty. Operand 100825 states and 161852 transitions. [2025-03-17 00:32:41,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2025-03-17 00:32:41,354 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:32:41,354 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 119, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:32:41,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 00:32:41,355 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:32:41,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:32:41,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1332385161, now seen corresponding path program 1 times [2025-03-17 00:32:41,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:32:41,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297602333] [2025-03-17 00:32:41,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:32:41,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:32:41,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 760 statements into 1 equivalence classes. [2025-03-17 00:32:41,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 760 of 760 statements. [2025-03-17 00:32:41,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:32:41,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:32:42,050 INFO L134 CoverageAnalysis]: Checked inductivity of 28084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2025-03-17 00:32:42,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:32:42,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297602333] [2025-03-17 00:32:42,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297602333] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:32:42,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:32:42,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 00:32:42,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421776035] [2025-03-17 00:32:42,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:32:42,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 00:32:42,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:32:42,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 00:32:42,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 00:32:42,052 INFO L87 Difference]: Start difference. First operand 100825 states and 161852 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119)