./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem18_label18.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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/Problem18_label18.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 f8f0d2ade09b18600a7b4179345f62183f75a8d839856c772f0fc0f6f3d7f124 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:23:07,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:23:07,697 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:23:07,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:23:07,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:23:07,718 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:23:07,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:23:07,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:23:07,719 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:23:07,720 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:23:07,720 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:23:07,721 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:23:07,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:23:07,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:23:07,721 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:23:07,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:23:07,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:23:07,722 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:23:07,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:23:07,725 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:23:07,726 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:23:07,726 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:23:07,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:23:07,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:23:07,727 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:23:07,727 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:23:07,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:23:07,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:23:07,727 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:23:07,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:23:07,728 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:23:07,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:23:07,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:23:07,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:23:07,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:23:07,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:23:07,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:23:07,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:23:07,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:23:07,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:23:07,729 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:23:07,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:23:07,730 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8f0d2ade09b18600a7b4179345f62183f75a8d839856c772f0fc0f6f3d7f124 [2024-11-16 04:23:07,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:23:07,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:23:07,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:23:07,977 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:23:07,977 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:23:07,978 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem18_label18.c [2024-11-16 04:23:09,324 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:23:09,659 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:23:09,660 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label18.c [2024-11-16 04:23:09,682 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cefaf5a4/e7d98b4fb0194f21bf614472b2bb7971/FLAG6ff918660 [2024-11-16 04:23:09,693 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cefaf5a4/e7d98b4fb0194f21bf614472b2bb7971 [2024-11-16 04:23:09,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:23:09,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:23:09,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:23:09,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:23:09,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:23:09,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:23:09" (1/1) ... [2024-11-16 04:23:09,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ccdaa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:09, skipping insertion in model container [2024-11-16 04:23:09,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:23:09" (1/1) ... [2024-11-16 04:23:09,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:23:09,985 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/Problem18_label18.c[5963,5976] [2024-11-16 04:23:10,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:23:10,416 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:23:10,436 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/Problem18_label18.c[5963,5976] [2024-11-16 04:23:10,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:23:10,776 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:23:10,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10 WrapperNode [2024-11-16 04:23:10,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:23:10,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:23:10,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:23:10,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:23:10,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10" (1/1) ... [2024-11-16 04:23:10,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10" (1/1) ... [2024-11-16 04:23:10,985 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4134 [2024-11-16 04:23:10,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:23:10,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:23:10,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:23:10,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:23:10,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10" (1/1) ... [2024-11-16 04:23:10,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10" (1/1) ... [2024-11-16 04:23:11,007 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10" (1/1) ... [2024-11-16 04:23:11,173 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]. [2024-11-16 04:23:11,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10" (1/1) ... [2024-11-16 04:23:11,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10" (1/1) ... [2024-11-16 04:23:11,253 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10" (1/1) ... [2024-11-16 04:23:11,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10" (1/1) ... [2024-11-16 04:23:11,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10" (1/1) ... [2024-11-16 04:23:11,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10" (1/1) ... [2024-11-16 04:23:11,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:23:11,309 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:23:11,309 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:23:11,310 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:23:11,311 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10" (1/1) ... [2024-11-16 04:23:11,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:23:11,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:23:11,340 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) [2024-11-16 04:23:11,344 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 [2024-11-16 04:23:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:23:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:23:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:23:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:23:11,445 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:23:11,447 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:23:13,943 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1647: havoc calculate_output_#t~ret8#1; [2024-11-16 04:23:13,944 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3060: havoc calculate_output2_#t~ret9#1; [2024-11-16 04:23:14,027 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-11-16 04:23:14,027 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:23:14,053 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:23:14,056 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:23:14,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:23:14 BoogieIcfgContainer [2024-11-16 04:23:14,057 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:23:14,058 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:23:14,058 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:23:14,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:23:14,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:23:09" (1/3) ... [2024-11-16 04:23:14,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288d2bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:23:14, skipping insertion in model container [2024-11-16 04:23:14,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:10" (2/3) ... [2024-11-16 04:23:14,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288d2bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:23:14, skipping insertion in model container [2024-11-16 04:23:14,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:23:14" (3/3) ... [2024-11-16 04:23:14,064 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label18.c [2024-11-16 04:23:14,075 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:23:14,075 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:23:14,139 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:23:14,144 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;@7ff9467d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:23:14,144 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:23:14,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 760 states, 758 states have (on average 1.9089709762532983) internal successors, (1447), 759 states have internal predecessors, (1447), 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) [2024-11-16 04:23:14,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-16 04:23:14,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:14,157 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:14,157 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:14,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:14,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1207946734, now seen corresponding path program 1 times [2024-11-16 04:23:14,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:14,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258319718] [2024-11-16 04:23:14,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:14,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:14,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:23:14,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:14,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258319718] [2024-11-16 04:23:14,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258319718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:14,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:14,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:23:14,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527546921] [2024-11-16 04:23:14,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:14,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:14,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:14,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:14,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:14,505 INFO L87 Difference]: Start difference. First operand has 760 states, 758 states have (on average 1.9089709762532983) internal successors, (1447), 759 states have internal predecessors, (1447), 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 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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) [2024-11-16 04:23:17,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:17,166 INFO L93 Difference]: Finished difference Result 2211 states and 4272 transitions. [2024-11-16 04:23:17,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:17,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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 59 [2024-11-16 04:23:17,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:17,185 INFO L225 Difference]: With dead ends: 2211 [2024-11-16 04:23:17,185 INFO L226 Difference]: Without dead ends: 1387 [2024-11-16 04:23:17,189 INFO L431 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 [2024-11-16 04:23:17,191 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 691 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:17,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 295 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 04:23:17,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-11-16 04:23:17,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1387. [2024-11-16 04:23:17,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1386 states have (on average 1.7323232323232323) internal successors, (2401), 1386 states have internal predecessors, (2401), 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) [2024-11-16 04:23:17,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2401 transitions. [2024-11-16 04:23:17,288 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2401 transitions. Word has length 59 [2024-11-16 04:23:17,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:17,289 INFO L471 AbstractCegarLoop]: Abstraction has 1387 states and 2401 transitions. [2024-11-16 04:23:17,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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) [2024-11-16 04:23:17,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2401 transitions. [2024-11-16 04:23:17,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 04:23:17,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:17,293 INFO L215 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, 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] [2024-11-16 04:23:17,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:23:17,293 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:17,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:17,294 INFO L85 PathProgramCache]: Analyzing trace with hash -228439675, now seen corresponding path program 1 times [2024-11-16 04:23:17,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:17,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748683813] [2024-11-16 04:23:17,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:17,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:17,459 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:23:17,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:17,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748683813] [2024-11-16 04:23:17,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748683813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:17,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:17,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:23:17,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379982402] [2024-11-16 04:23:17,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:17,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:17,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:17,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:17,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:17,462 INFO L87 Difference]: Start difference. First operand 1387 states and 2401 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 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) [2024-11-16 04:23:19,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:19,898 INFO L93 Difference]: Finished difference Result 4154 states and 7197 transitions. [2024-11-16 04:23:19,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:19,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 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 129 [2024-11-16 04:23:19,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:19,907 INFO L225 Difference]: With dead ends: 4154 [2024-11-16 04:23:19,907 INFO L226 Difference]: Without dead ends: 2769 [2024-11-16 04:23:19,911 INFO L431 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 [2024-11-16 04:23:19,912 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 677 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 2628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:19,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 576 Invalid, 2628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 04:23:19,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2024-11-16 04:23:19,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2769. [2024-11-16 04:23:19,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2768 states have (on average 1.4299132947976878) internal successors, (3958), 2768 states have internal predecessors, (3958), 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) [2024-11-16 04:23:19,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3958 transitions. [2024-11-16 04:23:19,954 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3958 transitions. Word has length 129 [2024-11-16 04:23:19,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:19,955 INFO L471 AbstractCegarLoop]: Abstraction has 2769 states and 3958 transitions. [2024-11-16 04:23:19,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 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) [2024-11-16 04:23:19,955 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3958 transitions. [2024-11-16 04:23:19,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 04:23:19,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:19,958 INFO L215 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, 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] [2024-11-16 04:23:19,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:23:19,958 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:19,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:19,959 INFO L85 PathProgramCache]: Analyzing trace with hash 13906861, now seen corresponding path program 1 times [2024-11-16 04:23:19,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:19,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903266735] [2024-11-16 04:23:19,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:19,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:20,062 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:23:20,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:20,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903266735] [2024-11-16 04:23:20,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903266735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:20,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:20,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:23:20,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714313545] [2024-11-16 04:23:20,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:20,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:20,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:20,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:20,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:20,064 INFO L87 Difference]: Start difference. First operand 2769 states and 3958 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 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) [2024-11-16 04:23:22,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:22,170 INFO L93 Difference]: Finished difference Result 8300 states and 11868 transitions. [2024-11-16 04:23:22,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:22,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 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 145 [2024-11-16 04:23:22,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:22,184 INFO L225 Difference]: With dead ends: 8300 [2024-11-16 04:23:22,184 INFO L226 Difference]: Without dead ends: 5533 [2024-11-16 04:23:22,188 INFO L431 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 [2024-11-16 04:23:22,189 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 689 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:22,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 439 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 04:23:22,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5533 states. [2024-11-16 04:23:22,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5533 to 5533. [2024-11-16 04:23:22,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5533 states, 5532 states have (on average 1.2812725958062183) internal successors, (7088), 5532 states have internal predecessors, (7088), 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) [2024-11-16 04:23:22,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5533 states to 5533 states and 7088 transitions. [2024-11-16 04:23:22,255 INFO L78 Accepts]: Start accepts. Automaton has 5533 states and 7088 transitions. Word has length 145 [2024-11-16 04:23:22,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:22,257 INFO L471 AbstractCegarLoop]: Abstraction has 5533 states and 7088 transitions. [2024-11-16 04:23:22,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 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) [2024-11-16 04:23:22,258 INFO L276 IsEmpty]: Start isEmpty. Operand 5533 states and 7088 transitions. [2024-11-16 04:23:22,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-16 04:23:22,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:22,262 INFO L215 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:22,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:23:22,263 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:22,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:22,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1408103219, now seen corresponding path program 1 times [2024-11-16 04:23:22,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:22,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054545926] [2024-11-16 04:23:22,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:22,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:22,742 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 04:23:22,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:22,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054545926] [2024-11-16 04:23:22,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054545926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:22,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:22,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:23:22,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819617953] [2024-11-16 04:23:22,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:22,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:23:22,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:22,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:23:22,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:23:22,744 INFO L87 Difference]: Start difference. First operand 5533 states and 7088 transitions. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 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) [2024-11-16 04:23:26,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:26,121 INFO L93 Difference]: Finished difference Result 15210 states and 18728 transitions. [2024-11-16 04:23:26,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:23:26,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 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 248 [2024-11-16 04:23:26,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:26,144 INFO L225 Difference]: With dead ends: 15210 [2024-11-16 04:23:26,145 INFO L226 Difference]: Without dead ends: 9679 [2024-11-16 04:23:26,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:23:26,151 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 1875 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 4378 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1875 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 4483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 4378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:26,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1875 Valid, 654 Invalid, 4483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 4378 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-16 04:23:26,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9679 states. [2024-11-16 04:23:26,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9679 to 8297. [2024-11-16 04:23:26,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8297 states, 8296 states have (on average 1.2150433944069432) internal successors, (10080), 8296 states have internal predecessors, (10080), 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) [2024-11-16 04:23:26,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8297 states to 8297 states and 10080 transitions. [2024-11-16 04:23:26,270 INFO L78 Accepts]: Start accepts. Automaton has 8297 states and 10080 transitions. Word has length 248 [2024-11-16 04:23:26,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:26,271 INFO L471 AbstractCegarLoop]: Abstraction has 8297 states and 10080 transitions. [2024-11-16 04:23:26,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 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) [2024-11-16 04:23:26,271 INFO L276 IsEmpty]: Start isEmpty. Operand 8297 states and 10080 transitions. [2024-11-16 04:23:26,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-11-16 04:23:26,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:26,275 INFO L215 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:23:26,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:23:26,276 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:26,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:26,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1224731941, now seen corresponding path program 1 times [2024-11-16 04:23:26,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:26,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420040268] [2024-11-16 04:23:26,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:26,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:26,699 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-16 04:23:26,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:26,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420040268] [2024-11-16 04:23:26,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420040268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:26,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:26,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:23:26,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996754575] [2024-11-16 04:23:26,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:26,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:23:26,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:26,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:23:26,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:23:26,703 INFO L87 Difference]: Start difference. First operand 8297 states and 10080 transitions. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 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) [2024-11-16 04:23:28,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:28,840 INFO L93 Difference]: Finished difference Result 18719 states and 22339 transitions. [2024-11-16 04:23:28,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:23:28,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 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 431 [2024-11-16 04:23:28,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:28,866 INFO L225 Difference]: With dead ends: 18719 [2024-11-16 04:23:28,866 INFO L226 Difference]: Without dead ends: 10370 [2024-11-16 04:23:28,877 INFO L431 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 [2024-11-16 04:23:28,879 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 529 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 2590 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 2971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 2590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:28,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 642 Invalid, 2971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 2590 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 04:23:28,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10370 states. [2024-11-16 04:23:28,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10370 to 10370. [2024-11-16 04:23:29,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10370 states, 10369 states have (on average 1.13501784164336) internal successors, (11769), 10369 states have internal predecessors, (11769), 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) [2024-11-16 04:23:29,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10370 states to 10370 states and 11769 transitions. [2024-11-16 04:23:29,017 INFO L78 Accepts]: Start accepts. Automaton has 10370 states and 11769 transitions. Word has length 431 [2024-11-16 04:23:29,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:29,018 INFO L471 AbstractCegarLoop]: Abstraction has 10370 states and 11769 transitions. [2024-11-16 04:23:29,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 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) [2024-11-16 04:23:29,019 INFO L276 IsEmpty]: Start isEmpty. Operand 10370 states and 11769 transitions. [2024-11-16 04:23:29,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2024-11-16 04:23:29,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:29,030 INFO L215 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:23:29,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:23:29,031 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:29,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:29,032 INFO L85 PathProgramCache]: Analyzing trace with hash -795961990, now seen corresponding path program 1 times [2024-11-16 04:23:29,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:29,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382899705] [2024-11-16 04:23:29,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:29,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:29,509 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-11-16 04:23:29,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:29,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382899705] [2024-11-16 04:23:29,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382899705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:29,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:29,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:23:29,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390367257] [2024-11-16 04:23:29,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:29,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:29,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:29,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:29,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:29,512 INFO L87 Difference]: Start difference. First operand 10370 states and 11769 transitions. Second operand has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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) [2024-11-16 04:23:31,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:31,446 INFO L93 Difference]: Finished difference Result 24884 states and 28537 transitions. [2024-11-16 04:23:31,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:31,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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 875 [2024-11-16 04:23:31,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:31,478 INFO L225 Difference]: With dead ends: 24884 [2024-11-16 04:23:31,479 INFO L226 Difference]: Without dead ends: 14516 [2024-11-16 04:23:31,489 INFO L431 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 [2024-11-16 04:23:31,491 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 645 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1928 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 1928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:31,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 323 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1928 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 04:23:31,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14516 states. [2024-11-16 04:23:31,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14516 to 13825. [2024-11-16 04:23:31,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13825 states, 13824 states have (on average 1.1511863425925926) internal successors, (15914), 13824 states have internal predecessors, (15914), 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) [2024-11-16 04:23:31,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13825 states to 13825 states and 15914 transitions. [2024-11-16 04:23:31,643 INFO L78 Accepts]: Start accepts. Automaton has 13825 states and 15914 transitions. Word has length 875 [2024-11-16 04:23:31,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:31,644 INFO L471 AbstractCegarLoop]: Abstraction has 13825 states and 15914 transitions. [2024-11-16 04:23:31,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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) [2024-11-16 04:23:31,645 INFO L276 IsEmpty]: Start isEmpty. Operand 13825 states and 15914 transitions. [2024-11-16 04:23:31,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 962 [2024-11-16 04:23:31,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:31,662 INFO L215 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:23:31,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:23:31,662 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:31,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:31,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1960236487, now seen corresponding path program 1 times [2024-11-16 04:23:31,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:31,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511727956] [2024-11-16 04:23:31,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:31,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:32,251 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2024-11-16 04:23:32,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:32,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511727956] [2024-11-16 04:23:32,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511727956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:32,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:32,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:23:32,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628589318] [2024-11-16 04:23:32,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:32,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:32,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:32,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:32,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:32,253 INFO L87 Difference]: Start difference. First operand 13825 states and 15914 transitions. Second operand has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 2 states have internal predecessors, (578), 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) [2024-11-16 04:23:34,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:34,262 INFO L93 Difference]: Finished difference Result 34558 states and 40389 transitions. [2024-11-16 04:23:34,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:34,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 2 states have internal predecessors, (578), 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 961 [2024-11-16 04:23:34,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:34,287 INFO L225 Difference]: With dead ends: 34558 [2024-11-16 04:23:34,287 INFO L226 Difference]: Without dead ends: 20735 [2024-11-16 04:23:34,293 INFO L431 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 [2024-11-16 04:23:34,294 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 248 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 2552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 758 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:34,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 85 Invalid, 2552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [758 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 04:23:34,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20735 states. [2024-11-16 04:23:34,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20735 to 20735. [2024-11-16 04:23:34,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20735 states, 20734 states have (on average 1.167502652647825) internal successors, (24207), 20734 states have internal predecessors, (24207), 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) [2024-11-16 04:23:34,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20735 states to 20735 states and 24207 transitions. [2024-11-16 04:23:34,455 INFO L78 Accepts]: Start accepts. Automaton has 20735 states and 24207 transitions. Word has length 961 [2024-11-16 04:23:34,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:34,456 INFO L471 AbstractCegarLoop]: Abstraction has 20735 states and 24207 transitions. [2024-11-16 04:23:34,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 2 states have internal predecessors, (578), 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) [2024-11-16 04:23:34,456 INFO L276 IsEmpty]: Start isEmpty. Operand 20735 states and 24207 transitions. [2024-11-16 04:23:34,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2024-11-16 04:23:34,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:34,461 INFO L215 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:23:34,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:23:34,462 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:34,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:34,462 INFO L85 PathProgramCache]: Analyzing trace with hash 786004672, now seen corresponding path program 1 times [2024-11-16 04:23:34,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:34,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122538073] [2024-11-16 04:23:34,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:34,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:35,045 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2024-11-16 04:23:35,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:35,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122538073] [2024-11-16 04:23:35,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122538073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:35,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:35,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:23:35,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175817233] [2024-11-16 04:23:35,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:35,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:35,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:35,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:35,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:35,048 INFO L87 Difference]: Start difference. First operand 20735 states and 24207 transitions. Second operand has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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) [2024-11-16 04:23:36,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:36,891 INFO L93 Difference]: Finished difference Result 40777 states and 47717 transitions. [2024-11-16 04:23:36,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:36,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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 962 [2024-11-16 04:23:36,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:36,942 INFO L225 Difference]: With dead ends: 40777 [2024-11-16 04:23:36,942 INFO L226 Difference]: Without dead ends: 20044 [2024-11-16 04:23:36,960 INFO L431 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 [2024-11-16 04:23:36,961 INFO L432 NwaCegarLoop]: 1087 mSDtfsCounter, 639 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 2282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:36,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 1096 Invalid, 2282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 04:23:36,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20044 states. [2024-11-16 04:23:37,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20044 to 20044. [2024-11-16 04:23:37,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20044 states, 20043 states have (on average 1.1087661527715411) internal successors, (22223), 20043 states have internal predecessors, (22223), 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) [2024-11-16 04:23:37,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20044 states to 20044 states and 22223 transitions. [2024-11-16 04:23:37,244 INFO L78 Accepts]: Start accepts. Automaton has 20044 states and 22223 transitions. Word has length 962 [2024-11-16 04:23:37,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:37,244 INFO L471 AbstractCegarLoop]: Abstraction has 20044 states and 22223 transitions. [2024-11-16 04:23:37,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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) [2024-11-16 04:23:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 20044 states and 22223 transitions. [2024-11-16 04:23:37,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2024-11-16 04:23:37,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:37,251 INFO L215 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:37,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:23:37,252 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:37,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:37,252 INFO L85 PathProgramCache]: Analyzing trace with hash 641035648, now seen corresponding path program 1 times [2024-11-16 04:23:37,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:37,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500189676] [2024-11-16 04:23:37,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:37,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:38,112 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2024-11-16 04:23:38,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:38,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500189676] [2024-11-16 04:23:38,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500189676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:23:38,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585962189] [2024-11-16 04:23:38,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:38,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:23:38,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:23:38,115 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) [2024-11-16 04:23:38,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:23:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:38,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:23:38,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:23:39,404 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2024-11-16 04:23:39,404 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:23:39,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585962189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:39,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:23:39,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 04:23:39,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073171572] [2024-11-16 04:23:39,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:39,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:39,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:39,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:39,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:23:39,407 INFO L87 Difference]: Start difference. First operand 20044 states and 22223 transitions. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 2 states have internal predecessors, (523), 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) [2024-11-16 04:23:41,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:41,069 INFO L93 Difference]: Finished difference Result 50451 states and 56543 transitions. [2024-11-16 04:23:41,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:41,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 2 states have internal predecessors, (523), 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 1015 [2024-11-16 04:23:41,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:41,109 INFO L225 Difference]: With dead ends: 50451 [2024-11-16 04:23:41,109 INFO L226 Difference]: Without dead ends: 30409 [2024-11-16 04:23:41,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1017 GetRequests, 1014 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:23:41,123 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 183 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:41,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 366 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:23:41,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30409 states. [2024-11-16 04:23:41,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30409 to 26263. [2024-11-16 04:23:41,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26263 states, 26262 states have (on average 1.1042571015154976) internal successors, (29000), 26262 states have internal predecessors, (29000), 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) [2024-11-16 04:23:41,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26263 states to 26263 states and 29000 transitions. [2024-11-16 04:23:41,361 INFO L78 Accepts]: Start accepts. Automaton has 26263 states and 29000 transitions. Word has length 1015 [2024-11-16 04:23:41,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:41,362 INFO L471 AbstractCegarLoop]: Abstraction has 26263 states and 29000 transitions. [2024-11-16 04:23:41,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 2 states have internal predecessors, (523), 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) [2024-11-16 04:23:41,362 INFO L276 IsEmpty]: Start isEmpty. Operand 26263 states and 29000 transitions. [2024-11-16 04:23:41,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1049 [2024-11-16 04:23:41,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:41,369 INFO L215 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, 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, 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, 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] [2024-11-16 04:23:41,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 04:23:41,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:23:41,570 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:41,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:41,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1901135615, now seen corresponding path program 1 times [2024-11-16 04:23:41,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:41,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975478857] [2024-11-16 04:23:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:41,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:42,140 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-11-16 04:23:42,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:42,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975478857] [2024-11-16 04:23:42,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975478857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:42,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:42,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:23:42,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690433810] [2024-11-16 04:23:42,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:42,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:42,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:42,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:42,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:42,144 INFO L87 Difference]: Start difference. First operand 26263 states and 29000 transitions. Second operand has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2024-11-16 04:23:43,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:43,974 INFO L93 Difference]: Finished difference Result 60125 states and 67115 transitions. [2024-11-16 04:23:43,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:43,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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 1048 [2024-11-16 04:23:43,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:44,006 INFO L225 Difference]: With dead ends: 60125 [2024-11-16 04:23:44,007 INFO L226 Difference]: Without dead ends: 31100 [2024-11-16 04:23:44,026 INFO L431 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 [2024-11-16 04:23:44,026 INFO L432 NwaCegarLoop]: 1131 mSDtfsCounter, 641 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1903 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 2265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 1903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:44,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1140 Invalid, 2265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 1903 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 04:23:44,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31100 states. [2024-11-16 04:23:44,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31100 to 31100. [2024-11-16 04:23:44,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31100 states, 31099 states have (on average 1.0981382038007652) internal successors, (34151), 31099 states have internal predecessors, (34151), 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) [2024-11-16 04:23:44,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31100 states to 31100 states and 34151 transitions. [2024-11-16 04:23:44,274 INFO L78 Accepts]: Start accepts. Automaton has 31100 states and 34151 transitions. Word has length 1048 [2024-11-16 04:23:44,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:44,278 INFO L471 AbstractCegarLoop]: Abstraction has 31100 states and 34151 transitions. [2024-11-16 04:23:44,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2024-11-16 04:23:44,279 INFO L276 IsEmpty]: Start isEmpty. Operand 31100 states and 34151 transitions. [2024-11-16 04:23:44,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2024-11-16 04:23:44,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:44,286 INFO L215 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:44,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:23:44,286 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:44,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:44,287 INFO L85 PathProgramCache]: Analyzing trace with hash -741444286, now seen corresponding path program 1 times [2024-11-16 04:23:44,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:44,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231545913] [2024-11-16 04:23:44,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:44,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:45,106 INFO L134 CoverageAnalysis]: Checked inductivity of 971 backedges. 617 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-11-16 04:23:45,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:45,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231545913] [2024-11-16 04:23:45,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231545913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:45,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:45,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:23:45,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786887074] [2024-11-16 04:23:45,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:45,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:45,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:45,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:45,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:45,110 INFO L87 Difference]: Start difference. First operand 31100 states and 34151 transitions. Second operand has 3 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 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) [2024-11-16 04:23:46,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:46,799 INFO L93 Difference]: Finished difference Result 62198 states and 68302 transitions. [2024-11-16 04:23:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:46,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 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 1065 [2024-11-16 04:23:46,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:46,832 INFO L225 Difference]: With dead ends: 62198 [2024-11-16 04:23:46,832 INFO L226 Difference]: Without dead ends: 31791 [2024-11-16 04:23:46,856 INFO L431 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 [2024-11-16 04:23:46,857 INFO L432 NwaCegarLoop]: 972 mSDtfsCounter, 574 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 2198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:46,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 981 Invalid, 2198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:23:46,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31791 states. [2024-11-16 04:23:47,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31791 to 31791. [2024-11-16 04:23:47,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31791 states, 31790 states have (on average 1.0796476879521861) internal successors, (34322), 31790 states have internal predecessors, (34322), 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) [2024-11-16 04:23:47,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31791 states to 31791 states and 34322 transitions. [2024-11-16 04:23:47,185 INFO L78 Accepts]: Start accepts. Automaton has 31791 states and 34322 transitions. Word has length 1065 [2024-11-16 04:23:47,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:47,186 INFO L471 AbstractCegarLoop]: Abstraction has 31791 states and 34322 transitions. [2024-11-16 04:23:47,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 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) [2024-11-16 04:23:47,186 INFO L276 IsEmpty]: Start isEmpty. Operand 31791 states and 34322 transitions. [2024-11-16 04:23:47,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2024-11-16 04:23:47,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:47,193 INFO L215 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:47,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:23:47,194 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:47,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:47,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1294580827, now seen corresponding path program 1 times [2024-11-16 04:23:47,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:47,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92591152] [2024-11-16 04:23:47,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:47,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 435 proven. 0 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2024-11-16 04:23:47,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:47,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92591152] [2024-11-16 04:23:47,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92591152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:47,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:47,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 04:23:47,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072886028] [2024-11-16 04:23:47,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:47,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 04:23:47,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:47,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 04:23:47,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:23:47,986 INFO L87 Difference]: Start difference. First operand 31791 states and 34322 transitions. Second operand has 5 states, 5 states have (on average 129.8) internal successors, (649), 5 states have internal predecessors, (649), 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) [2024-11-16 04:23:50,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:50,256 INFO L93 Difference]: Finished difference Result 71252 states and 77602 transitions. [2024-11-16 04:23:50,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:23:50,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 129.8) internal successors, (649), 5 states have internal predecessors, (649), 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 1072 [2024-11-16 04:23:50,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:50,292 INFO L225 Difference]: With dead ends: 71252 [2024-11-16 04:23:50,292 INFO L226 Difference]: Without dead ends: 36699 [2024-11-16 04:23:50,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:23:50,311 INFO L432 NwaCegarLoop]: 1056 mSDtfsCounter, 1377 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2584 mSolverCounterSat, 922 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 3506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 922 IncrementalHoareTripleChecker+Valid, 2584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:50,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 1068 Invalid, 3506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [922 Valid, 2584 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 04:23:50,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36699 states. [2024-11-16 04:23:50,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36699 to 35246. [2024-11-16 04:23:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35246 states, 35245 states have (on average 1.0453965101432827) internal successors, (36845), 35245 states have internal predecessors, (36845), 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) [2024-11-16 04:23:50,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35246 states to 35246 states and 36845 transitions. [2024-11-16 04:23:50,553 INFO L78 Accepts]: Start accepts. Automaton has 35246 states and 36845 transitions. Word has length 1072 [2024-11-16 04:23:50,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:50,554 INFO L471 AbstractCegarLoop]: Abstraction has 35246 states and 36845 transitions. [2024-11-16 04:23:50,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.8) internal successors, (649), 5 states have internal predecessors, (649), 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) [2024-11-16 04:23:50,554 INFO L276 IsEmpty]: Start isEmpty. Operand 35246 states and 36845 transitions. [2024-11-16 04:23:50,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1194 [2024-11-16 04:23:50,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:50,563 INFO L215 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:50,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 04:23:50,564 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:50,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:50,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1480267042, now seen corresponding path program 1 times [2024-11-16 04:23:50,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:50,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217519362] [2024-11-16 04:23:50,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:50,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:51,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 1020 trivial. 0 not checked. [2024-11-16 04:23:51,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:51,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217519362] [2024-11-16 04:23:51,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217519362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:51,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:51,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:23:51,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78969003] [2024-11-16 04:23:51,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:51,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:51,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:51,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:51,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:51,612 INFO L87 Difference]: Start difference. First operand 35246 states and 36845 transitions. Second operand has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2024-11-16 04:23:53,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:53,104 INFO L93 Difference]: Finished difference Result 69799 states and 72996 transitions. [2024-11-16 04:23:53,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:53,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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 1193 [2024-11-16 04:23:53,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:53,138 INFO L225 Difference]: With dead ends: 69799 [2024-11-16 04:23:53,138 INFO L226 Difference]: Without dead ends: 35246 [2024-11-16 04:23:53,162 INFO L431 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 [2024-11-16 04:23:53,163 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 740 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:53,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 751 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:23:53,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35246 states. [2024-11-16 04:23:53,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35246 to 35246. [2024-11-16 04:23:53,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35246 states, 35245 states have (on average 1.0409136047666336) internal successors, (36687), 35245 states have internal predecessors, (36687), 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) [2024-11-16 04:23:53,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35246 states to 35246 states and 36687 transitions. [2024-11-16 04:23:53,622 INFO L78 Accepts]: Start accepts. Automaton has 35246 states and 36687 transitions. Word has length 1193 [2024-11-16 04:23:53,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:53,623 INFO L471 AbstractCegarLoop]: Abstraction has 35246 states and 36687 transitions. [2024-11-16 04:23:53,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2024-11-16 04:23:53,623 INFO L276 IsEmpty]: Start isEmpty. Operand 35246 states and 36687 transitions. [2024-11-16 04:23:53,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1207 [2024-11-16 04:23:53,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:53,642 INFO L215 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:53,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:23:53,643 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:53,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:53,643 INFO L85 PathProgramCache]: Analyzing trace with hash 881469106, now seen corresponding path program 1 times [2024-11-16 04:23:53,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:53,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231877279] [2024-11-16 04:23:53,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:53,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:54,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 646 proven. 764 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-16 04:23:54,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:54,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231877279] [2024-11-16 04:23:54,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231877279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:23:54,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141018358] [2024-11-16 04:23:54,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:54,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:23:54,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:23:54,967 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) [2024-11-16 04:23:54,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 04:23:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:55,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 1395 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:23:55,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:23:55,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 767 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-11-16 04:23:55,368 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:23:55,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141018358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:55,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:23:55,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-16 04:23:55,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995897020] [2024-11-16 04:23:55,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:55,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:55,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:55,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:55,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:23:55,370 INFO L87 Difference]: Start difference. First operand 35246 states and 36687 transitions. Second operand has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 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) [2024-11-16 04:23:57,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:57,032 INFO L93 Difference]: Finished difference Result 80855 states and 84691 transitions. [2024-11-16 04:23:57,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:57,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 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 1206 [2024-11-16 04:23:57,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:57,072 INFO L225 Difference]: With dead ends: 80855 [2024-11-16 04:23:57,072 INFO L226 Difference]: Without dead ends: 46302 [2024-11-16 04:23:57,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1213 GetRequests, 1206 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:23:57,095 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 592 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:57,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 133 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:23:57,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46302 states. [2024-11-16 04:23:57,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46302 to 46302. [2024-11-16 04:23:57,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46302 states, 46301 states have (on average 1.0416837649294832) internal successors, (48231), 46301 states have internal predecessors, (48231), 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) [2024-11-16 04:23:57,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46302 states to 46302 states and 48231 transitions. [2024-11-16 04:23:57,402 INFO L78 Accepts]: Start accepts. Automaton has 46302 states and 48231 transitions. Word has length 1206 [2024-11-16 04:23:57,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:57,403 INFO L471 AbstractCegarLoop]: Abstraction has 46302 states and 48231 transitions. [2024-11-16 04:23:57,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 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) [2024-11-16 04:23:57,403 INFO L276 IsEmpty]: Start isEmpty. Operand 46302 states and 48231 transitions. [2024-11-16 04:23:57,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1314 [2024-11-16 04:23:57,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:57,417 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:57,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 04:23:57,621 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,SelfDestructingSolverStorable13 [2024-11-16 04:23:57,622 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:57,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:57,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1402851008, now seen corresponding path program 1 times [2024-11-16 04:23:57,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:57,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985205457] [2024-11-16 04:23:57,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:57,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:58,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 930 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2024-11-16 04:23:58,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:58,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985205457] [2024-11-16 04:23:58,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985205457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:58,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:58,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:23:58,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640665381] [2024-11-16 04:23:58,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:58,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:58,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:58,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:58,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:58,117 INFO L87 Difference]: Start difference. First operand 46302 states and 48231 transitions. Second operand has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 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) [2024-11-16 04:23:59,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:59,877 INFO L93 Difference]: Finished difference Result 110568 states and 115709 transitions. [2024-11-16 04:23:59,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:59,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 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 1313 [2024-11-16 04:23:59,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:59,938 INFO L225 Difference]: With dead ends: 110568 [2024-11-16 04:23:59,938 INFO L226 Difference]: Without dead ends: 64268 [2024-11-16 04:23:59,969 INFO L431 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 [2024-11-16 04:23:59,970 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 573 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 2051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:59,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 119 Invalid, 2051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:24:00,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64268 states. [2024-11-16 04:24:00,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64268 to 63577. [2024-11-16 04:24:00,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63577 states, 63576 states have (on average 1.0457090726060148) internal successors, (66482), 63576 states have internal predecessors, (66482), 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) [2024-11-16 04:24:00,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63577 states to 63577 states and 66482 transitions. [2024-11-16 04:24:00,716 INFO L78 Accepts]: Start accepts. Automaton has 63577 states and 66482 transitions. Word has length 1313 [2024-11-16 04:24:00,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:00,717 INFO L471 AbstractCegarLoop]: Abstraction has 63577 states and 66482 transitions. [2024-11-16 04:24:00,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 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) [2024-11-16 04:24:00,717 INFO L276 IsEmpty]: Start isEmpty. Operand 63577 states and 66482 transitions. [2024-11-16 04:24:00,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1544 [2024-11-16 04:24:00,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:24:00,751 INFO L215 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, 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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 04:24:00,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 04:24:00,751 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:24:00,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:24:00,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1748319782, now seen corresponding path program 1 times [2024-11-16 04:24:00,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:24:00,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126028258] [2024-11-16 04:24:00,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:00,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:24:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:02,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2369 backedges. 1703 proven. 0 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2024-11-16 04:24:02,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:24:02,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126028258] [2024-11-16 04:24:02,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126028258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:02,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:24:02,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:24:02,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655434098] [2024-11-16 04:24:02,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:02,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:24:02,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:02,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:24:02,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:02,184 INFO L87 Difference]: Start difference. First operand 63577 states and 66482 transitions. Second operand has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 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) [2024-11-16 04:24:03,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:03,709 INFO L93 Difference]: Finished difference Result 136826 states and 143253 transitions. [2024-11-16 04:24:03,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:24:03,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 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 1543 [2024-11-16 04:24:03,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:03,894 INFO L225 Difference]: With dead ends: 136826 [2024-11-16 04:24:03,894 INFO L226 Difference]: Without dead ends: 73942 [2024-11-16 04:24:03,910 INFO L431 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 [2024-11-16 04:24:03,911 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 587 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:03,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 277 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:24:03,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73942 states. [2024-11-16 04:24:04,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73942 to 73251. [2024-11-16 04:24:04,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73251 states, 73250 states have (on average 1.0435904436860068) internal successors, (76443), 73250 states have internal predecessors, (76443), 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) [2024-11-16 04:24:04,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73251 states to 73251 states and 76443 transitions. [2024-11-16 04:24:04,550 INFO L78 Accepts]: Start accepts. Automaton has 73251 states and 76443 transitions. Word has length 1543 [2024-11-16 04:24:04,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:04,550 INFO L471 AbstractCegarLoop]: Abstraction has 73251 states and 76443 transitions. [2024-11-16 04:24:04,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 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) [2024-11-16 04:24:04,551 INFO L276 IsEmpty]: Start isEmpty. Operand 73251 states and 76443 transitions. [2024-11-16 04:24:04,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1677 [2024-11-16 04:24:04,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:24:04,593 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:04,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 04:24:04,593 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:24:04,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:24:04,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1297342745, now seen corresponding path program 1 times [2024-11-16 04:24:04,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:24:04,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707005500] [2024-11-16 04:24:04,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:04,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:24:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:06,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 1435 proven. 0 refuted. 0 times theorem prover too weak. 1646 trivial. 0 not checked. [2024-11-16 04:24:06,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:24:06,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707005500] [2024-11-16 04:24:06,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707005500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:06,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:24:06,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:24:06,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405548372] [2024-11-16 04:24:06,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:06,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:24:06,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:06,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:24:06,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:24:06,157 INFO L87 Difference]: Start difference. First operand 73251 states and 76443 transitions. Second operand has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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) [2024-11-16 04:24:08,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:08,229 INFO L93 Difference]: Finished difference Result 147196 states and 153595 transitions. [2024-11-16 04:24:08,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:24:08,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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 1676 [2024-11-16 04:24:08,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:08,230 INFO L225 Difference]: With dead ends: 147196 [2024-11-16 04:24:08,231 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 04:24:08,245 INFO L431 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 [2024-11-16 04:24:08,245 INFO L432 NwaCegarLoop]: 931 mSDtfsCounter, 397 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:08,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 944 Invalid, 2626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 04:24:08,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 04:24:08,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 04:24:08,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-16 04:24:08,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 04:24:08,250 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1676 [2024-11-16 04:24:08,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:08,251 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 04:24:08,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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) [2024-11-16 04:24:08,254 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 04:24:08,254 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 04:24:08,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 04:24:08,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 04:24:08,260 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:08,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 04:24:10,218 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 04:24:10,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:24:10 BoogieIcfgContainer [2024-11-16 04:24:10,234 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 04:24:10,235 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 04:24:10,236 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 04:24:10,236 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 04:24:10,237 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:23:14" (3/4) ... [2024-11-16 04:24:10,238 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 04:24:10,268 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-16 04:24:10,272 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 04:24:10,275 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 04:24:10,279 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 04:24:10,522 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 04:24:10,523 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 04:24:10,523 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 04:24:10,523 INFO L158 Benchmark]: Toolchain (without parser) took 60827.37ms. Allocated memory was 140.5MB in the beginning and 5.8GB in the end (delta: 5.7GB). Free memory was 58.6MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 905.1MB. Max. memory is 16.1GB. [2024-11-16 04:24:10,523 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory is still 102.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:24:10,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1078.60ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 58.2MB in the beginning and 111.4MB in the end (delta: -53.2MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2024-11-16 04:24:10,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 207.39ms. Allocated memory is still 184.5MB. Free memory was 111.4MB in the beginning and 68.4MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-16 04:24:10,524 INFO L158 Benchmark]: Boogie Preprocessor took 322.69ms. Allocated memory was 184.5MB in the beginning and 341.8MB in the end (delta: 157.3MB). Free memory was 68.4MB in the beginning and 234.9MB in the end (delta: -166.4MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2024-11-16 04:24:10,524 INFO L158 Benchmark]: IcfgBuilder took 2747.47ms. Allocated memory is still 341.8MB. Free memory was 234.9MB in the beginning and 198.5MB in the end (delta: 36.4MB). Peak memory consumption was 175.8MB. Max. memory is 16.1GB. [2024-11-16 04:24:10,525 INFO L158 Benchmark]: TraceAbstraction took 56176.17ms. Allocated memory was 341.8MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 197.5MB in the beginning and 4.9GB in the end (delta: -4.7GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-16 04:24:10,525 INFO L158 Benchmark]: Witness Printer took 288.26ms. Allocated memory is still 5.8GB. Free memory was 4.9GB in the beginning and 4.9GB in the end (delta: 55.6MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-11-16 04:24:10,526 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory is still 102.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1078.60ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 58.2MB in the beginning and 111.4MB in the end (delta: -53.2MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 207.39ms. Allocated memory is still 184.5MB. Free memory was 111.4MB in the beginning and 68.4MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 322.69ms. Allocated memory was 184.5MB in the beginning and 341.8MB in the end (delta: 157.3MB). Free memory was 68.4MB in the beginning and 234.9MB in the end (delta: -166.4MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. * IcfgBuilder took 2747.47ms. Allocated memory is still 341.8MB. Free memory was 234.9MB in the beginning and 198.5MB in the end (delta: 36.4MB). Peak memory consumption was 175.8MB. Max. memory is 16.1GB. * TraceAbstraction took 56176.17ms. Allocated memory was 341.8MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 197.5MB in the beginning and 4.9GB in the end (delta: -4.7GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 288.26ms. Allocated memory is still 5.8GB. Free memory was 4.9GB in the beginning and 4.9GB in the end (delta: 55.6MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 190]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 760 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.2s, OverallIterations: 17, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 35.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11657 SdHoareTripleChecker+Valid, 31.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11657 mSDsluCounter, 9889 SdHoareTripleChecker+Invalid, 26.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 167 mSDsCounter, 7687 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35979 IncrementalHoareTripleChecker+Invalid, 43666 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7687 mSolverCounterUnsat, 9722 mSDtfsCounter, 35979 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2279 GetRequests, 2248 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73251occurred in iteration=16, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 9054 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 17162 NumberOfCodeBlocks, 17162 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 17143 ConstructedInterpolants, 0 QuantifiedInterpolants, 38604 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2547 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 19 InterpolantComputations, 17 PerfectInterpolantSequences, 17706/18521 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4269]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 04:24:10,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE