./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem17_label19.c -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 2b69dfd7ce787b4bea7f704286d79d9dc2873c99a6634157ddcd6c7ea8551fd0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 10:59:01,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 10:59:01,460 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 10:59:01,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 10:59:01,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 10:59:01,483 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 10:59:01,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 10:59:01,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 10:59:01,484 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 10:59:01,484 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 10:59:01,484 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 10:59:01,485 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 10:59:01,485 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 10:59:01,485 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 10:59:01,485 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 10:59:01,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 10:59:01,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 10:59:01,485 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 10:59:01,485 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 10:59:01,485 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 10:59:01,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 10:59:01,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 10:59:01,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 10:59:01,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 10:59:01,486 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 10:59:01,486 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 10:59:01,486 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 10:59:01,486 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 10:59:01,486 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 10:59:01,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 10:59:01,486 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 10:59:01,486 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 10:59:01,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 10:59:01,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 10:59:01,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 10:59:01,487 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 10:59:01,487 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 10:59:01,487 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 10:59:01,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 10:59:01,487 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 10:59:01,487 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 10:59:01,487 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 10:59:01,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 10:59:01,487 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 -> 2b69dfd7ce787b4bea7f704286d79d9dc2873c99a6634157ddcd6c7ea8551fd0 [2025-03-03 10:59:01,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 10:59:01,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 10:59:01,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 10:59:01,731 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 10:59:01,732 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 10:59:01,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label19.c [2025-03-03 10:59:02,845 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aba104843/eb17db49de924f8b8fdecc62a0ada818/FLAG6bd8a455c [2025-03-03 10:59:03,260 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 10:59:03,261 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label19.c [2025-03-03 10:59:03,282 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aba104843/eb17db49de924f8b8fdecc62a0ada818/FLAG6bd8a455c [2025-03-03 10:59:03,404 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aba104843/eb17db49de924f8b8fdecc62a0ada818 [2025-03-03 10:59:03,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 10:59:03,407 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 10:59:03,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 10:59:03,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 10:59:03,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 10:59:03,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 10:59:03" (1/1) ... [2025-03-03 10:59:03,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6712e31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:03, skipping insertion in model container [2025-03-03 10:59:03,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 10:59:03" (1/1) ... [2025-03-03 10:59:03,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 10:59:03,627 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/eca-rers2012/Problem17_label19.c[6359,6372] [2025-03-03 10:59:03,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 10:59:04,025 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 10:59:04,037 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/eca-rers2012/Problem17_label19.c[6359,6372] [2025-03-03 10:59:04,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 10:59:04,203 INFO L204 MainTranslator]: Completed translation [2025-03-03 10:59:04,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04 WrapperNode [2025-03-03 10:59:04,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 10:59:04,205 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 10:59:04,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 10:59:04,206 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 10:59:04,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04" (1/1) ... [2025-03-03 10:59:04,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04" (1/1) ... [2025-03-03 10:59:04,419 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2610 [2025-03-03 10:59:04,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 10:59:04,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 10:59:04,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 10:59:04,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 10:59:04,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04" (1/1) ... [2025-03-03 10:59:04,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04" (1/1) ... [2025-03-03 10:59:04,500 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04" (1/1) ... [2025-03-03 10:59:04,632 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-03 10:59:04,637 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04" (1/1) ... [2025-03-03 10:59:04,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04" (1/1) ... [2025-03-03 10:59:04,745 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04" (1/1) ... [2025-03-03 10:59:04,763 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04" (1/1) ... [2025-03-03 10:59:04,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04" (1/1) ... [2025-03-03 10:59:04,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04" (1/1) ... [2025-03-03 10:59:04,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 10:59:04,829 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 10:59:04,829 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 10:59:04,829 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 10:59:04,831 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04" (1/1) ... [2025-03-03 10:59:04,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 10:59:04,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:59:04,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 10:59:04,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 10:59:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 10:59:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 10:59:04,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 10:59:04,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 10:59:04,943 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 10:59:04,945 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 10:59:07,443 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1653: havoc calculate_output_#t~ret7#1; [2025-03-03 10:59:07,614 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2025-03-03 10:59:07,614 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 10:59:07,632 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 10:59:07,632 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 10:59:07,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:59:07 BoogieIcfgContainer [2025-03-03 10:59:07,637 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 10:59:07,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 10:59:07,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 10:59:07,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 10:59:07,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 10:59:03" (1/3) ... [2025-03-03 10:59:07,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e097a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 10:59:07, skipping insertion in model container [2025-03-03 10:59:07,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:59:04" (2/3) ... [2025-03-03 10:59:07,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e097a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 10:59:07, skipping insertion in model container [2025-03-03 10:59:07,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:59:07" (3/3) ... [2025-03-03 10:59:07,653 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem17_label19.c [2025-03-03 10:59:07,670 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 10:59:07,671 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem17_label19.c that has 1 procedures, 590 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 10:59:07,756 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 10:59:07,767 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;@2246d707, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 10:59:07,767 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 10:59:07,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.804421768707483) internal successors, (1061), 589 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:07,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-03 10:59:07,779 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:07,780 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:07,780 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:07,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:07,785 INFO L85 PathProgramCache]: Analyzing trace with hash -672077432, now seen corresponding path program 1 times [2025-03-03 10:59:07,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:07,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719509377] [2025-03-03 10:59:07,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:07,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:07,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-03 10:59:07,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-03 10:59:07,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:07,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:08,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:59:08,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:08,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719509377] [2025-03-03 10:59:08,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719509377] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:08,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:08,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:59:08,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919960147] [2025-03-03 10:59:08,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:08,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:59:08,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:08,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:59:08,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:08,083 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.804421768707483) internal successors, (1061), 589 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:10,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:10,063 INFO L93 Difference]: Finished difference Result 1644 states and 3026 transitions. [2025-03-03 10:59:10,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:59:10,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2025-03-03 10:59:10,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:10,076 INFO L225 Difference]: With dead ends: 1644 [2025-03-03 10:59:10,076 INFO L226 Difference]: Without dead ends: 977 [2025-03-03 10:59:10,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:10,081 INFO L435 NwaCegarLoop]: 425 mSDtfsCounter, 446 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:10,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 503 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-03 10:59:10,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2025-03-03 10:59:10,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 971. [2025-03-03 10:59:10,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 970 states have (on average 1.5536082474226804) internal successors, (1507), 970 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:10,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1507 transitions. [2025-03-03 10:59:10,151 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1507 transitions. Word has length 42 [2025-03-03 10:59:10,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:10,151 INFO L471 AbstractCegarLoop]: Abstraction has 971 states and 1507 transitions. [2025-03-03 10:59:10,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:10,151 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1507 transitions. [2025-03-03 10:59:10,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-03 10:59:10,153 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:10,153 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:10,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 10:59:10,154 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:10,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:10,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1530901930, now seen corresponding path program 1 times [2025-03-03 10:59:10,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:10,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848152313] [2025-03-03 10:59:10,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:10,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:10,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-03 10:59:10,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-03 10:59:10,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:10,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:59:10,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:10,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848152313] [2025-03-03 10:59:10,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848152313] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:10,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:10,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:59:10,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708545751] [2025-03-03 10:59:10,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:10,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:59:10,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:10,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:59:10,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:10,405 INFO L87 Difference]: Start difference. First operand 971 states and 1507 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:12,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:12,169 INFO L93 Difference]: Finished difference Result 2813 states and 4381 transitions. [2025-03-03 10:59:12,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:59:12,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2025-03-03 10:59:12,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:12,197 INFO L225 Difference]: With dead ends: 2813 [2025-03-03 10:59:12,198 INFO L226 Difference]: Without dead ends: 1844 [2025-03-03 10:59:12,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:12,202 INFO L435 NwaCegarLoop]: 507 mSDtfsCounter, 405 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:12,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 580 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-03 10:59:12,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2025-03-03 10:59:12,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1841. [2025-03-03 10:59:12,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1841 states, 1840 states have (on average 1.35) internal successors, (2484), 1840 states have internal predecessors, (2484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:12,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2484 transitions. [2025-03-03 10:59:12,254 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2484 transitions. Word has length 109 [2025-03-03 10:59:12,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:12,255 INFO L471 AbstractCegarLoop]: Abstraction has 1841 states and 2484 transitions. [2025-03-03 10:59:12,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:12,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2484 transitions. [2025-03-03 10:59:12,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-03 10:59:12,260 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:12,261 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:12,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 10:59:12,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:12,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:12,264 INFO L85 PathProgramCache]: Analyzing trace with hash 783894800, now seen corresponding path program 1 times [2025-03-03 10:59:12,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:12,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494309975] [2025-03-03 10:59:12,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:12,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:12,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-03 10:59:12,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-03 10:59:12,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:12,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:12,473 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:59:12,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:12,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494309975] [2025-03-03 10:59:12,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494309975] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:12,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:12,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:59:12,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954885251] [2025-03-03 10:59:12,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:12,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:59:12,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:12,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:59:12,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:12,474 INFO L87 Difference]: Start difference. First operand 1841 states and 2484 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:14,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:14,270 INFO L93 Difference]: Finished difference Result 4552 states and 6282 transitions. [2025-03-03 10:59:14,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:59:14,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2025-03-03 10:59:14,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:14,278 INFO L225 Difference]: With dead ends: 4552 [2025-03-03 10:59:14,278 INFO L226 Difference]: Without dead ends: 2713 [2025-03-03 10:59:14,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:14,280 INFO L435 NwaCegarLoop]: 818 mSDtfsCounter, 465 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:14,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 886 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-03 10:59:14,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2025-03-03 10:59:14,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2711. [2025-03-03 10:59:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2710 states have (on average 1.3003690036900368) internal successors, (3524), 2710 states have internal predecessors, (3524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:14,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3524 transitions. [2025-03-03 10:59:14,312 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3524 transitions. Word has length 112 [2025-03-03 10:59:14,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:14,313 INFO L471 AbstractCegarLoop]: Abstraction has 2711 states and 3524 transitions. [2025-03-03 10:59:14,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:14,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3524 transitions. [2025-03-03 10:59:14,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2025-03-03 10:59:14,314 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:14,315 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:14,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 10:59:14,315 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:14,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:14,315 INFO L85 PathProgramCache]: Analyzing trace with hash -643099011, now seen corresponding path program 1 times [2025-03-03 10:59:14,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:14,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865221849] [2025-03-03 10:59:14,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:14,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:14,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-03-03 10:59:14,359 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-03-03 10:59:14,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:14,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:14,522 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2025-03-03 10:59:14,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:14,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865221849] [2025-03-03 10:59:14,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865221849] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:14,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:14,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:59:14,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115266862] [2025-03-03 10:59:14,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:14,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:59:14,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:14,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:59:14,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:14,524 INFO L87 Difference]: Start difference. First operand 2711 states and 3524 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:15,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:15,864 INFO L93 Difference]: Finished difference Result 7984 states and 10361 transitions. [2025-03-03 10:59:15,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:59:15,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2025-03-03 10:59:15,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:15,876 INFO L225 Difference]: With dead ends: 7984 [2025-03-03 10:59:15,876 INFO L226 Difference]: Without dead ends: 4421 [2025-03-03 10:59:15,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:15,881 INFO L435 NwaCegarLoop]: 515 mSDtfsCounter, 386 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:15,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 590 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-03 10:59:15,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4421 states. [2025-03-03 10:59:15,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4421 to 3571. [2025-03-03 10:59:15,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 3570 states have (on average 1.1775910364145659) internal successors, (4204), 3570 states have internal predecessors, (4204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:15,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 4204 transitions. [2025-03-03 10:59:15,929 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 4204 transitions. Word has length 181 [2025-03-03 10:59:15,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:15,930 INFO L471 AbstractCegarLoop]: Abstraction has 3571 states and 4204 transitions. [2025-03-03 10:59:15,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:15,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 4204 transitions. [2025-03-03 10:59:15,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2025-03-03 10:59:15,933 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:15,934 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:15,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 10:59:15,934 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:15,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:15,934 INFO L85 PathProgramCache]: Analyzing trace with hash -350259411, now seen corresponding path program 1 times [2025-03-03 10:59:15,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:15,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354505761] [2025-03-03 10:59:15,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:15,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:15,958 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 194 statements into 1 equivalence classes. [2025-03-03 10:59:15,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 194 of 194 statements. [2025-03-03 10:59:15,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:15,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:16,233 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:59:16,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:16,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354505761] [2025-03-03 10:59:16,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354505761] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:16,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:16,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:59:16,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388417341] [2025-03-03 10:59:16,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:16,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:59:16,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:16,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:59:16,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:16,238 INFO L87 Difference]: Start difference. First operand 3571 states and 4204 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:17,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:17,514 INFO L93 Difference]: Finished difference Result 9273 states and 11087 transitions. [2025-03-03 10:59:17,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:59:17,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2025-03-03 10:59:17,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:17,528 INFO L225 Difference]: With dead ends: 9273 [2025-03-03 10:59:17,529 INFO L226 Difference]: Without dead ends: 5704 [2025-03-03 10:59:17,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:17,533 INFO L435 NwaCegarLoop]: 726 mSDtfsCounter, 496 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:17,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 784 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-03 10:59:17,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5704 states. [2025-03-03 10:59:17,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5704 to 5704. [2025-03-03 10:59:17,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 1.1595651411537786) internal successors, (6613), 5703 states have internal predecessors, (6613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:17,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 6613 transitions. [2025-03-03 10:59:17,603 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 6613 transitions. Word has length 194 [2025-03-03 10:59:17,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:17,604 INFO L471 AbstractCegarLoop]: Abstraction has 5704 states and 6613 transitions. [2025-03-03 10:59:17,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:17,604 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 6613 transitions. [2025-03-03 10:59:17,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2025-03-03 10:59:17,606 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:17,607 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:17,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 10:59:17,607 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:17,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:17,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1356967048, now seen corresponding path program 1 times [2025-03-03 10:59:17,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:17,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280955114] [2025-03-03 10:59:17,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:17,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:17,625 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-03-03 10:59:17,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-03-03 10:59:17,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:17,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:17,744 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-03 10:59:17,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:17,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280955114] [2025-03-03 10:59:17,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280955114] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:17,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:17,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:59:17,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960232015] [2025-03-03 10:59:17,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:17,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:59:17,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:17,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:59:17,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:17,749 INFO L87 Difference]: Start difference. First operand 5704 states and 6613 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:19,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:19,152 INFO L93 Difference]: Finished difference Result 14376 states and 16776 transitions. [2025-03-03 10:59:19,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:59:19,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2025-03-03 10:59:19,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:19,169 INFO L225 Difference]: With dead ends: 14376 [2025-03-03 10:59:19,169 INFO L226 Difference]: Without dead ends: 8673 [2025-03-03 10:59:19,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:19,174 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 409 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:19,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 445 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-03 10:59:19,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8673 states. [2025-03-03 10:59:19,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8673 to 5677. [2025-03-03 10:59:19,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5677 states, 5676 states have (on average 1.1578576462297392) internal successors, (6572), 5676 states have internal predecessors, (6572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:19,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5677 states to 5677 states and 6572 transitions. [2025-03-03 10:59:19,250 INFO L78 Accepts]: Start accepts. Automaton has 5677 states and 6572 transitions. Word has length 196 [2025-03-03 10:59:19,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:19,250 INFO L471 AbstractCegarLoop]: Abstraction has 5677 states and 6572 transitions. [2025-03-03 10:59:19,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:19,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5677 states and 6572 transitions. [2025-03-03 10:59:19,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2025-03-03 10:59:19,256 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:19,257 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:19,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 10:59:19,257 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:19,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:19,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1956974773, now seen corresponding path program 1 times [2025-03-03 10:59:19,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:19,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216617594] [2025-03-03 10:59:19,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:19,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:19,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 274 statements into 1 equivalence classes. [2025-03-03 10:59:19,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 274 of 274 statements. [2025-03-03 10:59:19,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:19,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:19,451 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2025-03-03 10:59:19,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:19,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216617594] [2025-03-03 10:59:19,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216617594] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:19,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:19,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:59:19,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789425102] [2025-03-03 10:59:19,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:19,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:59:19,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:19,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:59:19,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:19,454 INFO L87 Difference]: Start difference. First operand 5677 states and 6572 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:20,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:20,836 INFO L93 Difference]: Finished difference Result 14315 states and 16680 transitions. [2025-03-03 10:59:20,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:59:20,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2025-03-03 10:59:20,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:20,853 INFO L225 Difference]: With dead ends: 14315 [2025-03-03 10:59:20,853 INFO L226 Difference]: Without dead ends: 7790 [2025-03-03 10:59:20,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:20,857 INFO L435 NwaCegarLoop]: 778 mSDtfsCounter, 383 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:20,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 847 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-03 10:59:20,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7790 states. [2025-03-03 10:59:20,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7790 to 7790. [2025-03-03 10:59:20,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7790 states, 7789 states have (on average 1.1186288355372962) internal successors, (8713), 7789 states have internal predecessors, (8713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:20,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7790 states to 7790 states and 8713 transitions. [2025-03-03 10:59:20,930 INFO L78 Accepts]: Start accepts. Automaton has 7790 states and 8713 transitions. Word has length 274 [2025-03-03 10:59:20,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:20,932 INFO L471 AbstractCegarLoop]: Abstraction has 7790 states and 8713 transitions. [2025-03-03 10:59:20,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:20,936 INFO L276 IsEmpty]: Start isEmpty. Operand 7790 states and 8713 transitions. [2025-03-03 10:59:20,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2025-03-03 10:59:20,938 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:20,939 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:20,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 10:59:20,939 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:20,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:20,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1587692882, now seen corresponding path program 1 times [2025-03-03 10:59:20,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:20,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707453822] [2025-03-03 10:59:20,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:20,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:20,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 314 statements into 1 equivalence classes. [2025-03-03 10:59:20,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 314 of 314 statements. [2025-03-03 10:59:20,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:20,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:21,083 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2025-03-03 10:59:21,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:21,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707453822] [2025-03-03 10:59:21,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707453822] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:21,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:21,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:59:21,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958502383] [2025-03-03 10:59:21,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:21,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:59:21,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:21,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:59:21,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:21,085 INFO L87 Difference]: Start difference. First operand 7790 states and 8713 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:22,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:22,374 INFO L93 Difference]: Finished difference Result 18559 states and 20913 transitions. [2025-03-03 10:59:22,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:59:22,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 314 [2025-03-03 10:59:22,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:22,392 INFO L225 Difference]: With dead ends: 18559 [2025-03-03 10:59:22,393 INFO L226 Difference]: Without dead ends: 10771 [2025-03-03 10:59:22,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:22,399 INFO L435 NwaCegarLoop]: 347 mSDtfsCounter, 430 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:22,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 402 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-03 10:59:22,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10771 states. [2025-03-03 10:59:22,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10771 to 9916. [2025-03-03 10:59:22,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9916 states, 9915 states have (on average 1.119415027735754) internal successors, (11099), 9915 states have internal predecessors, (11099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:22,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9916 states to 9916 states and 11099 transitions. [2025-03-03 10:59:22,484 INFO L78 Accepts]: Start accepts. Automaton has 9916 states and 11099 transitions. Word has length 314 [2025-03-03 10:59:22,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:22,485 INFO L471 AbstractCegarLoop]: Abstraction has 9916 states and 11099 transitions. [2025-03-03 10:59:22,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:22,488 INFO L276 IsEmpty]: Start isEmpty. Operand 9916 states and 11099 transitions. [2025-03-03 10:59:22,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2025-03-03 10:59:22,493 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:22,493 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:22,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 10:59:22,493 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:22,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:22,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1324124499, now seen corresponding path program 1 times [2025-03-03 10:59:22,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:22,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423593243] [2025-03-03 10:59:22,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:22,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:22,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 381 statements into 1 equivalence classes. [2025-03-03 10:59:22,573 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 381 of 381 statements. [2025-03-03 10:59:22,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:22,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:22,849 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:59:22,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:22,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423593243] [2025-03-03 10:59:22,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423593243] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:22,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:22,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:59:22,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139938948] [2025-03-03 10:59:22,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:22,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 10:59:22,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:22,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 10:59:22,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 10:59:22,852 INFO L87 Difference]: Start difference. First operand 9916 states and 11099 transitions. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:24,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:24,688 INFO L93 Difference]: Finished difference Result 26239 states and 29414 transitions. [2025-03-03 10:59:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 10:59:24,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 381 [2025-03-03 10:59:24,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:24,720 INFO L225 Difference]: With dead ends: 26239 [2025-03-03 10:59:24,721 INFO L226 Difference]: Without dead ends: 15900 [2025-03-03 10:59:24,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 10:59:24,735 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 633 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 2367 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 2697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 2367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:24,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 196 Invalid, 2697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 2367 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-03 10:59:24,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15900 states. [2025-03-03 10:59:24,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15900 to 15898. [2025-03-03 10:59:24,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15898 states, 15897 states have (on average 1.1247405170786942) internal successors, (17880), 15897 states have internal predecessors, (17880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:24,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15898 states to 15898 states and 17880 transitions. [2025-03-03 10:59:24,917 INFO L78 Accepts]: Start accepts. Automaton has 15898 states and 17880 transitions. Word has length 381 [2025-03-03 10:59:24,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:24,918 INFO L471 AbstractCegarLoop]: Abstraction has 15898 states and 17880 transitions. [2025-03-03 10:59:24,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:24,918 INFO L276 IsEmpty]: Start isEmpty. Operand 15898 states and 17880 transitions. [2025-03-03 10:59:24,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2025-03-03 10:59:24,926 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:24,927 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:24,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 10:59:24,927 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:24,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:24,930 INFO L85 PathProgramCache]: Analyzing trace with hash 303267118, now seen corresponding path program 1 times [2025-03-03 10:59:24,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:24,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384036051] [2025-03-03 10:59:24,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:24,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:24,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 415 statements into 1 equivalence classes. [2025-03-03 10:59:24,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 415 of 415 statements. [2025-03-03 10:59:24,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:24,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2025-03-03 10:59:25,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:25,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384036051] [2025-03-03 10:59:25,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384036051] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:25,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:25,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:59:25,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994384918] [2025-03-03 10:59:25,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:25,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:59:25,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:25,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:59:25,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:25,211 INFO L87 Difference]: Start difference. First operand 15898 states and 17880 transitions. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:26,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:26,607 INFO L93 Difference]: Finished difference Result 44148 states and 49784 transitions. [2025-03-03 10:59:26,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:59:26,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 415 [2025-03-03 10:59:26,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:26,644 INFO L225 Difference]: With dead ends: 44148 [2025-03-03 10:59:26,644 INFO L226 Difference]: Without dead ends: 28252 [2025-03-03 10:59:26,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:26,653 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 497 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:26,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 287 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-03 10:59:26,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28252 states. [2025-03-03 10:59:26,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28252 to 27809. [2025-03-03 10:59:26,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27809 states, 27808 states have (on average 1.1171605293440736) internal successors, (31066), 27808 states have internal predecessors, (31066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:27,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27809 states to 27809 states and 31066 transitions. [2025-03-03 10:59:27,028 INFO L78 Accepts]: Start accepts. Automaton has 27809 states and 31066 transitions. Word has length 415 [2025-03-03 10:59:27,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:27,028 INFO L471 AbstractCegarLoop]: Abstraction has 27809 states and 31066 transitions. [2025-03-03 10:59:27,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:27,029 INFO L276 IsEmpty]: Start isEmpty. Operand 27809 states and 31066 transitions. [2025-03-03 10:59:27,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2025-03-03 10:59:27,035 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:27,036 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:27,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 10:59:27,036 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:27,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:27,037 INFO L85 PathProgramCache]: Analyzing trace with hash -831590644, now seen corresponding path program 1 times [2025-03-03 10:59:27,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:27,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320609311] [2025-03-03 10:59:27,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:27,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:27,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 428 statements into 1 equivalence classes. [2025-03-03 10:59:27,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 428 of 428 statements. [2025-03-03 10:59:27,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:27,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 79 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:59:28,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:28,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320609311] [2025-03-03 10:59:28,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320609311] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 10:59:28,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703769485] [2025-03-03 10:59:28,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:28,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:59:28,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:59:28,525 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 10:59:28,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 10:59:28,625 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 428 statements into 1 equivalence classes. [2025-03-03 10:59:28,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 428 of 428 statements. [2025-03-03 10:59:28,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:28,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:28,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-03 10:59:28,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 10:59:29,187 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 79 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:59:29,188 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 10:59:29,686 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:59:29,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703769485] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-03 10:59:29,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-03 10:59:29,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 10 [2025-03-03 10:59:29,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899728003] [2025-03-03 10:59:29,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:29,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 10:59:29,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:29,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 10:59:29,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-03-03 10:59:29,688 INFO L87 Difference]: Start difference. First operand 27809 states and 31066 transitions. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:32,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:32,077 INFO L93 Difference]: Finished difference Result 83735 states and 93626 transitions. [2025-03-03 10:59:32,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 10:59:32,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 428 [2025-03-03 10:59:32,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:32,143 INFO L225 Difference]: With dead ends: 83735 [2025-03-03 10:59:32,143 INFO L226 Difference]: Without dead ends: 55075 [2025-03-03 10:59:32,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 860 GetRequests, 851 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-03-03 10:59:32,168 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 712 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 2327 mSolverCounterSat, 803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 3130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 2327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:32,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 170 Invalid, 3130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [803 Valid, 2327 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-03 10:59:32,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55075 states. [2025-03-03 10:59:32,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55075 to 51237. [2025-03-03 10:59:32,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51237 states, 51236 states have (on average 1.1068389413693496) internal successors, (56710), 51236 states have internal predecessors, (56710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:32,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51237 states to 51237 states and 56710 transitions. [2025-03-03 10:59:32,736 INFO L78 Accepts]: Start accepts. Automaton has 51237 states and 56710 transitions. Word has length 428 [2025-03-03 10:59:32,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:32,737 INFO L471 AbstractCegarLoop]: Abstraction has 51237 states and 56710 transitions. [2025-03-03 10:59:32,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:32,737 INFO L276 IsEmpty]: Start isEmpty. Operand 51237 states and 56710 transitions. [2025-03-03 10:59:32,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2025-03-03 10:59:32,748 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:32,748 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:32,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 10:59:32,949 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,SelfDestructingSolverStorable10 [2025-03-03 10:59:32,951 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:32,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:32,951 INFO L85 PathProgramCache]: Analyzing trace with hash -933356117, now seen corresponding path program 1 times [2025-03-03 10:59:32,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:32,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102417555] [2025-03-03 10:59:32,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:32,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:32,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 477 statements into 1 equivalence classes. [2025-03-03 10:59:33,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 477 of 477 statements. [2025-03-03 10:59:33,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:33,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:33,428 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-03-03 10:59:33,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:33,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102417555] [2025-03-03 10:59:33,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102417555] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:33,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:33,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 10:59:33,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607651070] [2025-03-03 10:59:33,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:33,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 10:59:33,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:33,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 10:59:33,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 10:59:33,430 INFO L87 Difference]: Start difference. First operand 51237 states and 56710 transitions. Second operand has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:35,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:35,456 INFO L93 Difference]: Finished difference Result 119501 states and 132258 transitions. [2025-03-03 10:59:35,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 10:59:35,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 477 [2025-03-03 10:59:35,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:35,525 INFO L225 Difference]: With dead ends: 119501 [2025-03-03 10:59:35,525 INFO L226 Difference]: Without dead ends: 68266 [2025-03-03 10:59:35,558 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 [2025-03-03 10:59:35,559 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 897 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 2238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:35,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 320 Invalid, 2238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-03 10:59:35,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68266 states. [2025-03-03 10:59:36,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68266 to 61447. [2025-03-03 10:59:36,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61447 states, 61446 states have (on average 1.1070858965595807) internal successors, (68026), 61446 states have internal predecessors, (68026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:36,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61447 states to 61447 states and 68026 transitions. [2025-03-03 10:59:36,279 INFO L78 Accepts]: Start accepts. Automaton has 61447 states and 68026 transitions. Word has length 477 [2025-03-03 10:59:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:36,279 INFO L471 AbstractCegarLoop]: Abstraction has 61447 states and 68026 transitions. [2025-03-03 10:59:36,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:36,280 INFO L276 IsEmpty]: Start isEmpty. Operand 61447 states and 68026 transitions. [2025-03-03 10:59:36,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2025-03-03 10:59:36,289 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:36,289 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:36,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 10:59:36,290 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:36,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:36,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1976517235, now seen corresponding path program 1 times [2025-03-03 10:59:36,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:36,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191266103] [2025-03-03 10:59:36,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:36,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:36,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 485 statements into 1 equivalence classes. [2025-03-03 10:59:36,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 485 of 485 statements. [2025-03-03 10:59:36,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:36,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:36,424 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2025-03-03 10:59:36,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:36,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191266103] [2025-03-03 10:59:36,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191266103] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:36,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:36,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:59:36,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058782354] [2025-03-03 10:59:36,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:36,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:59:36,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:36,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:59:36,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:36,426 INFO L87 Difference]: Start difference. First operand 61447 states and 68026 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:37,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:37,924 INFO L93 Difference]: Finished difference Result 120334 states and 133047 transitions. [2025-03-03 10:59:37,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:59:37,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 485 [2025-03-03 10:59:37,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:37,995 INFO L225 Difference]: With dead ends: 120334 [2025-03-03 10:59:37,995 INFO L226 Difference]: Without dead ends: 58889 [2025-03-03 10:59:38,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:38,035 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 453 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:38,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 322 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-03 10:59:38,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58889 states. [2025-03-03 10:59:38,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58889 to 54633. [2025-03-03 10:59:38,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54633 states, 54632 states have (on average 1.1071533167374432) internal successors, (60486), 54632 states have internal predecessors, (60486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:38,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54633 states to 54633 states and 60486 transitions. [2025-03-03 10:59:38,916 INFO L78 Accepts]: Start accepts. Automaton has 54633 states and 60486 transitions. Word has length 485 [2025-03-03 10:59:38,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:38,917 INFO L471 AbstractCegarLoop]: Abstraction has 54633 states and 60486 transitions. [2025-03-03 10:59:38,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:38,917 INFO L276 IsEmpty]: Start isEmpty. Operand 54633 states and 60486 transitions. [2025-03-03 10:59:38,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2025-03-03 10:59:38,926 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:38,927 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:38,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 10:59:38,927 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:38,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:38,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1597689294, now seen corresponding path program 1 times [2025-03-03 10:59:38,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:38,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711104485] [2025-03-03 10:59:38,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:38,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:38,958 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 502 statements into 1 equivalence classes. [2025-03-03 10:59:38,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 502 of 502 statements. [2025-03-03 10:59:38,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:38,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:39,404 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2025-03-03 10:59:39,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:39,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711104485] [2025-03-03 10:59:39,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711104485] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:39,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:39,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:59:39,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924970116] [2025-03-03 10:59:39,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:39,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:59:39,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:39,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:59:39,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:39,407 INFO L87 Difference]: Start difference. First operand 54633 states and 60486 transitions. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:40,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:40,575 INFO L93 Difference]: Finished difference Result 110542 states and 122307 transitions. [2025-03-03 10:59:40,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:59:40,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 502 [2025-03-03 10:59:40,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:40,638 INFO L225 Difference]: With dead ends: 110542 [2025-03-03 10:59:40,639 INFO L226 Difference]: Without dead ends: 55911 [2025-03-03 10:59:40,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:40,673 INFO L435 NwaCegarLoop]: 783 mSDtfsCounter, 127 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:40,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 839 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-03 10:59:40,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55911 states. [2025-03-03 10:59:41,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55911 to 55909. [2025-03-03 10:59:41,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55909 states, 55908 states have (on average 1.1046540745510482) internal successors, (61759), 55908 states have internal predecessors, (61759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:41,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55909 states to 55909 states and 61759 transitions. [2025-03-03 10:59:41,261 INFO L78 Accepts]: Start accepts. Automaton has 55909 states and 61759 transitions. Word has length 502 [2025-03-03 10:59:41,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:41,261 INFO L471 AbstractCegarLoop]: Abstraction has 55909 states and 61759 transitions. [2025-03-03 10:59:41,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:41,261 INFO L276 IsEmpty]: Start isEmpty. Operand 55909 states and 61759 transitions. [2025-03-03 10:59:41,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2025-03-03 10:59:41,271 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:41,271 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:41,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-03 10:59:41,271 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:41,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:41,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1605139226, now seen corresponding path program 1 times [2025-03-03 10:59:41,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:41,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844665552] [2025-03-03 10:59:41,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:41,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:41,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 507 statements into 1 equivalence classes. [2025-03-03 10:59:41,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 507 of 507 statements. [2025-03-03 10:59:41,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:41,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:41,575 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 240 proven. 78 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-03 10:59:41,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:41,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844665552] [2025-03-03 10:59:41,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844665552] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 10:59:41,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420300972] [2025-03-03 10:59:41,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:41,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:59:41,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:59:41,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 10:59:41,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 10:59:41,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 507 statements into 1 equivalence classes. [2025-03-03 10:59:41,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 507 of 507 statements. [2025-03-03 10:59:41,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:41,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:41,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-03 10:59:41,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 10:59:41,875 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 240 proven. 78 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-03 10:59:41,875 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 10:59:42,063 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-03 10:59:42,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420300972] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-03 10:59:42,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-03 10:59:42,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2025-03-03 10:59:42,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119506592] [2025-03-03 10:59:42,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:42,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 10:59:42,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:42,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 10:59:42,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-03 10:59:42,067 INFO L87 Difference]: Start difference. First operand 55909 states and 61759 transitions. Second operand has 4 states, 4 states have (on average 117.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:44,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:44,504 INFO L93 Difference]: Finished difference Result 126723 states and 139743 transitions. [2025-03-03 10:59:44,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 10:59:44,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 507 [2025-03-03 10:59:44,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:44,585 INFO L225 Difference]: With dead ends: 126723 [2025-03-03 10:59:44,585 INFO L226 Difference]: Without dead ends: 70388 [2025-03-03 10:59:44,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1015 GetRequests, 1011 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-03 10:59:44,621 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 843 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 2314 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 2757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 2314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:44,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 201 Invalid, 2757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 2314 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-03 10:59:44,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70388 states. [2025-03-03 10:59:45,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70388 to 63586. [2025-03-03 10:59:45,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63586 states, 63585 states have (on average 1.1042069670519776) internal successors, (70211), 63585 states have internal predecessors, (70211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:45,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63586 states to 63586 states and 70211 transitions. [2025-03-03 10:59:45,757 INFO L78 Accepts]: Start accepts. Automaton has 63586 states and 70211 transitions. Word has length 507 [2025-03-03 10:59:45,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:45,757 INFO L471 AbstractCegarLoop]: Abstraction has 63586 states and 70211 transitions. [2025-03-03 10:59:45,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:45,757 INFO L276 IsEmpty]: Start isEmpty. Operand 63586 states and 70211 transitions. [2025-03-03 10:59:45,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2025-03-03 10:59:45,775 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:45,775 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:45,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-03 10:59:45,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-03 10:59:45,976 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:45,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:45,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1632861824, now seen corresponding path program 1 times [2025-03-03 10:59:45,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:45,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909887210] [2025-03-03 10:59:45,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:45,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:46,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 533 statements into 1 equivalence classes. [2025-03-03 10:59:46,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 533 of 533 statements. [2025-03-03 10:59:46,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:46,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:46,822 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 266 proven. 82 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-03 10:59:46,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:46,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909887210] [2025-03-03 10:59:46,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909887210] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 10:59:46,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494425965] [2025-03-03 10:59:46,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:46,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:59:46,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:59:46,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 10:59:46,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-03 10:59:46,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 533 statements into 1 equivalence classes. [2025-03-03 10:59:46,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 533 of 533 statements. [2025-03-03 10:59:46,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:46,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:46,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-03 10:59:46,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 10:59:47,262 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 266 proven. 82 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-03 10:59:47,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 10:59:47,887 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 266 proven. 82 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-03 10:59:47,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494425965] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 10:59:47,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 10:59:47,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2025-03-03 10:59:47,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601636037] [2025-03-03 10:59:47,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 10:59:47,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-03 10:59:47,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:47,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-03 10:59:47,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-03 10:59:47,890 INFO L87 Difference]: Start difference. First operand 63586 states and 70211 transitions. Second operand has 10 states, 10 states have (on average 87.2) internal successors, (872), 9 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:54,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:54,111 INFO L93 Difference]: Finished difference Result 149327 states and 164897 transitions. [2025-03-03 10:59:54,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-03 10:59:54,111 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 87.2) internal successors, (872), 9 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 533 [2025-03-03 10:59:54,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:54,218 INFO L225 Difference]: With dead ends: 149327 [2025-03-03 10:59:54,218 INFO L226 Difference]: Without dead ends: 84893 [2025-03-03 10:59:54,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1074 GetRequests, 1061 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2025-03-03 10:59:54,268 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 5483 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 9048 mSolverCounterSat, 1214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5483 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 10262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1214 IncrementalHoareTripleChecker+Valid, 9048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:54,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5483 Valid, 483 Invalid, 10262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1214 Valid, 9048 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2025-03-03 10:59:54,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84893 states. [2025-03-03 10:59:55,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84893 to 75905. [2025-03-03 10:59:55,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75905 states, 75904 states have (on average 1.1027613827993255) internal successors, (83704), 75904 states have internal predecessors, (83704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:55,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75905 states to 75905 states and 83704 transitions. [2025-03-03 10:59:55,205 INFO L78 Accepts]: Start accepts. Automaton has 75905 states and 83704 transitions. Word has length 533 [2025-03-03 10:59:55,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:55,205 INFO L471 AbstractCegarLoop]: Abstraction has 75905 states and 83704 transitions. [2025-03-03 10:59:55,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 87.2) internal successors, (872), 9 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:55,205 INFO L276 IsEmpty]: Start isEmpty. Operand 75905 states and 83704 transitions. [2025-03-03 10:59:55,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2025-03-03 10:59:55,216 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:55,216 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:55,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-03 10:59:55,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:59:55,416 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:55,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:55,417 INFO L85 PathProgramCache]: Analyzing trace with hash -364576373, now seen corresponding path program 1 times [2025-03-03 10:59:55,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:55,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870621121] [2025-03-03 10:59:55,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:55,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:55,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 608 statements into 1 equivalence classes. [2025-03-03 10:59:55,481 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 608 of 608 statements. [2025-03-03 10:59:55,481 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:55,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:55,769 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 545 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2025-03-03 10:59:55,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:55,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870621121] [2025-03-03 10:59:55,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870621121] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:55,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:55,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:59:55,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648111255] [2025-03-03 10:59:55,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:55,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:59:55,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:55,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:59:55,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:55,771 INFO L87 Difference]: Start difference. First operand 75905 states and 83704 transitions. Second operand has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:57,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:59:57,194 INFO L93 Difference]: Finished difference Result 162422 states and 178343 transitions. [2025-03-03 10:59:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:59:57,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 608 [2025-03-03 10:59:57,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:59:57,283 INFO L225 Difference]: With dead ends: 162422 [2025-03-03 10:59:57,283 INFO L226 Difference]: Without dead ends: 83109 [2025-03-03 10:59:57,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:57,337 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 447 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-03 10:59:57,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 562 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-03 10:59:57,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83109 states. [2025-03-03 10:59:58,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83109 to 77573. [2025-03-03 10:59:58,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77573 states, 77572 states have (on average 1.0836899912339504) internal successors, (84064), 77572 states have internal predecessors, (84064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:58,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77573 states to 77573 states and 84064 transitions. [2025-03-03 10:59:58,660 INFO L78 Accepts]: Start accepts. Automaton has 77573 states and 84064 transitions. Word has length 608 [2025-03-03 10:59:58,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:59:58,660 INFO L471 AbstractCegarLoop]: Abstraction has 77573 states and 84064 transitions. [2025-03-03 10:59:58,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:59:58,660 INFO L276 IsEmpty]: Start isEmpty. Operand 77573 states and 84064 transitions. [2025-03-03 10:59:58,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2025-03-03 10:59:58,669 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:59:58,669 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:59:58,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-03 10:59:58,670 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:59:58,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:59:58,670 INFO L85 PathProgramCache]: Analyzing trace with hash -697655370, now seen corresponding path program 1 times [2025-03-03 10:59:58,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:59:58,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906663652] [2025-03-03 10:59:58,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:59:58,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:59:58,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 609 statements into 1 equivalence classes. [2025-03-03 10:59:58,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 609 of 609 statements. [2025-03-03 10:59:58,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:59:58,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:59:59,242 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2025-03-03 10:59:59,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:59:59,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906663652] [2025-03-03 10:59:59,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906663652] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:59:59,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:59:59,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:59:59,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055513322] [2025-03-03 10:59:59,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:59:59,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:59:59,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:59:59,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:59:59,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:59:59,244 INFO L87 Difference]: Start difference. First operand 77573 states and 84064 transitions. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:00,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:00:00,330 INFO L93 Difference]: Finished difference Result 154717 states and 167697 transitions. [2025-03-03 11:00:00,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 11:00:00,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 609 [2025-03-03 11:00:00,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:00:00,416 INFO L225 Difference]: With dead ends: 154717 [2025-03-03 11:00:00,417 INFO L226 Difference]: Without dead ends: 77571 [2025-03-03 11:00:00,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 11:00:00,470 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 567 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-03 11:00:00,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 538 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-03 11:00:00,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77571 states. [2025-03-03 11:00:01,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77571 to 77570. [2025-03-03 11:00:01,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77570 states, 77569 states have (on average 1.0835385269888744) internal successors, (84049), 77569 states have internal predecessors, (84049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:01,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77570 states to 77570 states and 84049 transitions. [2025-03-03 11:00:01,445 INFO L78 Accepts]: Start accepts. Automaton has 77570 states and 84049 transitions. Word has length 609 [2025-03-03 11:00:01,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:00:01,446 INFO L471 AbstractCegarLoop]: Abstraction has 77570 states and 84049 transitions. [2025-03-03 11:00:01,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:01,446 INFO L276 IsEmpty]: Start isEmpty. Operand 77570 states and 84049 transitions. [2025-03-03 11:00:01,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2025-03-03 11:00:01,460 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:00:01,460 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:00:01,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-03 11:00:01,460 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:00:01,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:00:01,461 INFO L85 PathProgramCache]: Analyzing trace with hash 531308290, now seen corresponding path program 1 times [2025-03-03 11:00:01,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 11:00:01,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473971716] [2025-03-03 11:00:01,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:00:01,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 11:00:01,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 613 statements into 1 equivalence classes. [2025-03-03 11:00:01,556 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 613 of 613 statements. [2025-03-03 11:00:01,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:00:01,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:00:02,897 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 241 proven. 430 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 11:00:02,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 11:00:02,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473971716] [2025-03-03 11:00:02,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473971716] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 11:00:02,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692461548] [2025-03-03 11:00:02,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:00:02,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 11:00:02,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 11:00:02,900 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 11:00:02,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-03 11:00:02,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 613 statements into 1 equivalence classes. [2025-03-03 11:00:03,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 613 of 613 statements. [2025-03-03 11:00:03,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:00:03,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:00:03,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-03 11:00:03,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:00:03,148 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2025-03-03 11:00:03,148 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:00:03,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692461548] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:00:03,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 11:00:03,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-03-03 11:00:03,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414758761] [2025-03-03 11:00:03,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:00:03,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 11:00:03,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 11:00:03,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 11:00:03,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-03 11:00:03,150 INFO L87 Difference]: Start difference. First operand 77570 states and 84049 transitions. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:04,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:00:04,709 INFO L93 Difference]: Finished difference Result 181588 states and 196766 transitions. [2025-03-03 11:00:04,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 11:00:04,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 613 [2025-03-03 11:00:04,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:00:04,824 INFO L225 Difference]: With dead ends: 181588 [2025-03-03 11:00:04,824 INFO L226 Difference]: Without dead ends: 104012 [2025-03-03 11:00:04,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 612 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-03 11:00:04,873 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 466 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-03 11:00:04,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 232 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-03 11:00:04,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104012 states. [2025-03-03 11:00:05,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104012 to 101850. [2025-03-03 11:00:05,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101850 states, 101849 states have (on average 1.0800400593034787) internal successors, (110001), 101849 states have internal predecessors, (110001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:06,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101850 states to 101850 states and 110001 transitions. [2025-03-03 11:00:06,065 INFO L78 Accepts]: Start accepts. Automaton has 101850 states and 110001 transitions. Word has length 613 [2025-03-03 11:00:06,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:00:06,065 INFO L471 AbstractCegarLoop]: Abstraction has 101850 states and 110001 transitions. [2025-03-03 11:00:06,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:06,065 INFO L276 IsEmpty]: Start isEmpty. Operand 101850 states and 110001 transitions. [2025-03-03 11:00:06,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2025-03-03 11:00:06,077 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:00:06,077 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:00:06,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-03 11:00:06,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 11:00:06,278 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:00:06,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:00:06,279 INFO L85 PathProgramCache]: Analyzing trace with hash 938957018, now seen corresponding path program 1 times [2025-03-03 11:00:06,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 11:00:06,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367459654] [2025-03-03 11:00:06,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:00:06,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 11:00:06,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 628 statements into 1 equivalence classes. [2025-03-03 11:00:06,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 628 of 628 statements. [2025-03-03 11:00:06,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:00:06,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:00:06,580 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2025-03-03 11:00:06,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 11:00:06,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367459654] [2025-03-03 11:00:06,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367459654] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:00:06,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:00:06,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 11:00:06,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422599829] [2025-03-03 11:00:06,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:00:06,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 11:00:06,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 11:00:06,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 11:00:06,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 11:00:06,583 INFO L87 Difference]: Start difference. First operand 101850 states and 110001 transitions. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:07,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:00:07,971 INFO L93 Difference]: Finished difference Result 204553 states and 220968 transitions. [2025-03-03 11:00:07,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 11:00:07,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 628 [2025-03-03 11:00:07,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:00:08,249 INFO L225 Difference]: With dead ends: 204553 [2025-03-03 11:00:08,250 INFO L226 Difference]: Without dead ends: 103130 [2025-03-03 11:00:08,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 11:00:08,286 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 495 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-03 11:00:08,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 620 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-03 11:00:08,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103130 states. [2025-03-03 11:00:09,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103130 to 102698. [2025-03-03 11:00:09,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102698 states, 102697 states have (on average 1.0720176830871397) internal successors, (110093), 102697 states have internal predecessors, (110093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:09,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102698 states to 102698 states and 110093 transitions. [2025-03-03 11:00:09,502 INFO L78 Accepts]: Start accepts. Automaton has 102698 states and 110093 transitions. Word has length 628 [2025-03-03 11:00:09,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:00:09,502 INFO L471 AbstractCegarLoop]: Abstraction has 102698 states and 110093 transitions. [2025-03-03 11:00:09,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:09,502 INFO L276 IsEmpty]: Start isEmpty. Operand 102698 states and 110093 transitions. [2025-03-03 11:00:09,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 865 [2025-03-03 11:00:09,536 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:00:09,536 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:00:09,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-03 11:00:09,536 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:00:09,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:00:09,537 INFO L85 PathProgramCache]: Analyzing trace with hash 853082500, now seen corresponding path program 1 times [2025-03-03 11:00:09,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 11:00:09,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283908020] [2025-03-03 11:00:09,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:00:09,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 11:00:09,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 864 statements into 1 equivalence classes. [2025-03-03 11:00:09,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 864 of 864 statements. [2025-03-03 11:00:09,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:00:09,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:00:09,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 543 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2025-03-03 11:00:09,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 11:00:09,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283908020] [2025-03-03 11:00:09,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283908020] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:00:09,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:00:09,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 11:00:09,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495706684] [2025-03-03 11:00:09,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:00:09,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 11:00:09,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 11:00:09,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 11:00:09,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 11:00:09,980 INFO L87 Difference]: Start difference. First operand 102698 states and 110093 transitions. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:11,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:00:11,390 INFO L93 Difference]: Finished difference Result 191306 states and 204827 transitions. [2025-03-03 11:00:11,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 11:00:11,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 864 [2025-03-03 11:00:11,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:00:11,500 INFO L225 Difference]: With dead ends: 191306 [2025-03-03 11:00:11,500 INFO L226 Difference]: Without dead ends: 88181 [2025-03-03 11:00:11,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 11:00:11,550 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 397 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-03 11:00:11,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 579 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-03 11:00:11,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88181 states. [2025-03-03 11:00:12,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88181 to 80955. [2025-03-03 11:00:12,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80955 states, 80954 states have (on average 1.0679398176742347) internal successors, (86454), 80954 states have internal predecessors, (86454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:12,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80955 states to 80955 states and 86454 transitions. [2025-03-03 11:00:12,726 INFO L78 Accepts]: Start accepts. Automaton has 80955 states and 86454 transitions. Word has length 864 [2025-03-03 11:00:12,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:00:12,727 INFO L471 AbstractCegarLoop]: Abstraction has 80955 states and 86454 transitions. [2025-03-03 11:00:12,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand 80955 states and 86454 transitions. [2025-03-03 11:00:12,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 871 [2025-03-03 11:00:12,760 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:00:12,761 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:00:12,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-03 11:00:12,761 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:00:12,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:00:12,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1736276555, now seen corresponding path program 1 times [2025-03-03 11:00:12,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 11:00:12,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109984774] [2025-03-03 11:00:12,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:00:12,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 11:00:12,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 870 statements into 1 equivalence classes. [2025-03-03 11:00:12,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 870 of 870 statements. [2025-03-03 11:00:12,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:00:12,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:00:13,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2025-03-03 11:00:13,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 11:00:13,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109984774] [2025-03-03 11:00:13,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109984774] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:00:13,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:00:13,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 11:00:13,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121969785] [2025-03-03 11:00:13,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:00:13,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 11:00:13,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 11:00:13,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 11:00:13,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 11:00:13,241 INFO L87 Difference]: Start difference. First operand 80955 states and 86454 transitions. Second operand has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:14,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:00:14,612 INFO L93 Difference]: Finished difference Result 162756 states and 173839 transitions. [2025-03-03 11:00:14,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 11:00:14,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 870 [2025-03-03 11:00:14,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:00:14,703 INFO L225 Difference]: With dead ends: 162756 [2025-03-03 11:00:14,703 INFO L226 Difference]: Without dead ends: 82228 [2025-03-03 11:00:14,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 11:00:14,753 INFO L435 NwaCegarLoop]: 639 mSDtfsCounter, 451 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-03 11:00:14,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 680 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-03 11:00:14,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82228 states. [2025-03-03 11:00:15,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82228 to 77112. [2025-03-03 11:00:15,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77112 states, 77111 states have (on average 1.0660087406466003) internal successors, (82201), 77111 states have internal predecessors, (82201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77112 states to 77112 states and 82201 transitions. [2025-03-03 11:00:15,614 INFO L78 Accepts]: Start accepts. Automaton has 77112 states and 82201 transitions. Word has length 870 [2025-03-03 11:00:15,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:00:15,614 INFO L471 AbstractCegarLoop]: Abstraction has 77112 states and 82201 transitions. [2025-03-03 11:00:15,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:15,614 INFO L276 IsEmpty]: Start isEmpty. Operand 77112 states and 82201 transitions. [2025-03-03 11:00:15,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 967 [2025-03-03 11:00:15,643 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:00:15,643 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:00:15,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-03 11:00:15,643 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:00:15,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:00:15,644 INFO L85 PathProgramCache]: Analyzing trace with hash 96615097, now seen corresponding path program 1 times [2025-03-03 11:00:15,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 11:00:15,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653557279] [2025-03-03 11:00:15,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:00:15,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 11:00:15,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 966 statements into 1 equivalence classes. [2025-03-03 11:00:15,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 966 of 966 statements. [2025-03-03 11:00:15,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:00:15,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:00:16,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 1087 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2025-03-03 11:00:16,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 11:00:16,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653557279] [2025-03-03 11:00:16,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653557279] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:00:16,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:00:16,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 11:00:16,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575301119] [2025-03-03 11:00:16,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:00:16,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 11:00:16,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 11:00:16,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 11:00:16,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 11:00:16,438 INFO L87 Difference]: Start difference. First operand 77112 states and 82201 transitions. Second operand has 4 states, 4 states have (on average 201.75) internal successors, (807), 4 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:18,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:00:18,359 INFO L93 Difference]: Finished difference Result 176361 states and 187820 transitions. [2025-03-03 11:00:18,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 11:00:18,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 201.75) internal successors, (807), 4 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 966 [2025-03-03 11:00:18,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:00:18,467 INFO L225 Difference]: With dead ends: 176361 [2025-03-03 11:00:18,468 INFO L226 Difference]: Without dead ends: 99251 [2025-03-03 11:00:18,519 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 [2025-03-03 11:00:18,520 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 346 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 2571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-03 11:00:18,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 160 Invalid, 2571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-03 11:00:18,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99251 states. [2025-03-03 11:00:19,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99251 to 92869. [2025-03-03 11:00:19,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92869 states, 92868 states have (on average 1.061926605504587) internal successors, (98619), 92868 states have internal predecessors, (98619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92869 states to 92869 states and 98619 transitions. [2025-03-03 11:00:19,593 INFO L78 Accepts]: Start accepts. Automaton has 92869 states and 98619 transitions. Word has length 966 [2025-03-03 11:00:19,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:00:19,594 INFO L471 AbstractCegarLoop]: Abstraction has 92869 states and 98619 transitions. [2025-03-03 11:00:19,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.75) internal successors, (807), 4 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:19,594 INFO L276 IsEmpty]: Start isEmpty. Operand 92869 states and 98619 transitions. [2025-03-03 11:00:19,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1054 [2025-03-03 11:00:19,635 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:00:19,636 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:00:19,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-03 11:00:19,636 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:00:19,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:00:19,636 INFO L85 PathProgramCache]: Analyzing trace with hash 335904345, now seen corresponding path program 1 times [2025-03-03 11:00:19,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 11:00:19,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828364248] [2025-03-03 11:00:19,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:00:19,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 11:00:19,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1053 statements into 1 equivalence classes. [2025-03-03 11:00:19,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1053 of 1053 statements. [2025-03-03 11:00:19,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:00:19,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:00:20,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1562 backedges. 1257 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2025-03-03 11:00:20,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 11:00:20,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828364248] [2025-03-03 11:00:20,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828364248] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:00:20,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:00:20,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 11:00:20,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564673370] [2025-03-03 11:00:20,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:00:20,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 11:00:20,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 11:00:20,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 11:00:20,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-03 11:00:20,347 INFO L87 Difference]: Start difference. First operand 92869 states and 98619 transitions. Second operand has 5 states, 5 states have (on average 166.4) internal successors, (832), 5 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:00:23,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:00:23,117 INFO L93 Difference]: Finished difference Result 205755 states and 218634 transitions. [2025-03-03 11:00:23,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 11:00:23,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 166.4) internal successors, (832), 5 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1053 [2025-03-03 11:00:23,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:00:23,257 INFO L225 Difference]: With dead ends: 205755 [2025-03-03 11:00:23,257 INFO L226 Difference]: Without dead ends: 112888 [2025-03-03 11:00:23,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-03 11:00:23,315 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 893 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 537 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 3156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 537 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-03 11:00:23,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 151 Invalid, 3156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [537 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-03 11:00:23,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112888 states.