./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label01.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/Problem10_label01.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 25a329399ac3f0c42bfd0b3752cc2a04cb2662736babf7dc26be2e3a4966221c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:46:46,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:46:46,517 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:46:46,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:46:46,522 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:46:46,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:46:46,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:46:46,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:46:46,545 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:46:46,545 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:46:46,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:46:46,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:46:46,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:46:46,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:46:46,549 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:46:46,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:46:46,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:46:46,550 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:46:46,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:46:46,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:46:46,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:46:46,554 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:46:46,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:46:46,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:46:46,555 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:46:46,556 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:46:46,556 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:46:46,556 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:46:46,557 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:46:46,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:46:46,561 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:46:46,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:46:46,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:46:46,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:46:46,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:46:46,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:46:46,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:46:46,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:46:46,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:46:46,563 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:46:46,563 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:46:46,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:46:46,566 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25a329399ac3f0c42bfd0b3752cc2a04cb2662736babf7dc26be2e3a4966221c [2024-11-16 03:46:46,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:46:46,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:46:46,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:46:46,869 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:46:46,869 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:46:46,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label01.c [2024-11-16 03:46:48,334 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:46:48,579 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:46:48,580 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label01.c [2024-11-16 03:46:48,603 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12266905b/1a055b0266154c8c9b558fa86f01d3b8/FLAGa4f436d22 [2024-11-16 03:46:48,619 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12266905b/1a055b0266154c8c9b558fa86f01d3b8 [2024-11-16 03:46:48,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:46:48,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:46:48,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:46:48,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:46:48,628 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:46:48,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:46:48" (1/1) ... [2024-11-16 03:46:48,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395dc97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:48, skipping insertion in model container [2024-11-16 03:46:48,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:46:48" (1/1) ... [2024-11-16 03:46:48,674 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:46:48,948 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/Problem10_label01.c[6098,6111] [2024-11-16 03:46:49,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:46:49,104 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:46:49,138 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/Problem10_label01.c[6098,6111] [2024-11-16 03:46:49,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:46:49,207 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:46:49,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49 WrapperNode [2024-11-16 03:46:49,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:46:49,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:46:49,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:46:49,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:46:49,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49" (1/1) ... [2024-11-16 03:46:49,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49" (1/1) ... [2024-11-16 03:46:49,314 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2024-11-16 03:46:49,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:46:49,318 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:46:49,318 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:46:49,319 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:46:49,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49" (1/1) ... [2024-11-16 03:46:49,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49" (1/1) ... [2024-11-16 03:46:49,350 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49" (1/1) ... [2024-11-16 03:46:49,423 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 03:46:49,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49" (1/1) ... [2024-11-16 03:46:49,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49" (1/1) ... [2024-11-16 03:46:49,464 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49" (1/1) ... [2024-11-16 03:46:49,484 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49" (1/1) ... [2024-11-16 03:46:49,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49" (1/1) ... [2024-11-16 03:46:49,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49" (1/1) ... [2024-11-16 03:46:49,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:46:49,504 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:46:49,504 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:46:49,505 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:46:49,505 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49" (1/1) ... [2024-11-16 03:46:49,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:46:49,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:46:49,531 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 03:46:49,533 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 03:46:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:46:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:46:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:46:49,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:46:49,622 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:46:49,625 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:46:50,633 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-16 03:46:50,633 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:46:50,655 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:46:50,657 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:46:50,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:46:50 BoogieIcfgContainer [2024-11-16 03:46:50,658 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:46:50,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:46:50,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:46:50,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:46:50,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:46:48" (1/3) ... [2024-11-16 03:46:50,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4ff8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:46:50, skipping insertion in model container [2024-11-16 03:46:50,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:46:49" (2/3) ... [2024-11-16 03:46:50,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4ff8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:46:50, skipping insertion in model container [2024-11-16 03:46:50,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:46:50" (3/3) ... [2024-11-16 03:46:50,670 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label01.c [2024-11-16 03:46:50,689 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:46:50,689 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:46:50,767 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:46:50,776 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;@371a5aac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:46:50,777 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:46:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 207 states have (on average 1.6763285024154588) internal successors, (347), 208 states have internal predecessors, (347), 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 03:46:50,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 03:46:50,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:46:50,794 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] [2024-11-16 03:46:50,795 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:46:50,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:46:50,800 INFO L85 PathProgramCache]: Analyzing trace with hash -660039461, now seen corresponding path program 1 times [2024-11-16 03:46:50,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:46:50,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898784444] [2024-11-16 03:46:50,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:46:50,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:46:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:46:51,405 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 03:46:51,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:46:51,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898784444] [2024-11-16 03:46:51,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898784444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:46:51,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:46:51,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:46:51,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877955582] [2024-11-16 03:46:51,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:46:51,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:46:51,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:46:51,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:46:51,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:46:51,449 INFO L87 Difference]: Start difference. First operand has 209 states, 207 states have (on average 1.6763285024154588) internal successors, (347), 208 states have internal predecessors, (347), 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 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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 03:46:52,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:46:52,701 INFO L93 Difference]: Finished difference Result 703 states and 1255 transitions. [2024-11-16 03:46:52,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:46:52,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2024-11-16 03:46:52,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:46:52,718 INFO L225 Difference]: With dead ends: 703 [2024-11-16 03:46:52,719 INFO L226 Difference]: Without dead ends: 425 [2024-11-16 03:46:52,724 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 03:46:52,728 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 467 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:46:52,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 50 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 03:46:52,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-16 03:46:52,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2024-11-16 03:46:52,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 424 states have (on average 1.3797169811320755) internal successors, (585), 424 states have internal predecessors, (585), 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 03:46:52,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 585 transitions. [2024-11-16 03:46:52,798 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 585 transitions. Word has length 55 [2024-11-16 03:46:52,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:46:52,799 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 585 transitions. [2024-11-16 03:46:52,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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 03:46:52,799 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 585 transitions. [2024-11-16 03:46:52,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-16 03:46:52,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:46:52,806 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, 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] [2024-11-16 03:46:52,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:46:52,807 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:46:52,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:46:52,807 INFO L85 PathProgramCache]: Analyzing trace with hash -932702338, now seen corresponding path program 1 times [2024-11-16 03:46:52,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:46:52,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338585891] [2024-11-16 03:46:52,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:46:52,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:46:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:46:53,231 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 03:46:53,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:46:53,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338585891] [2024-11-16 03:46:53,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338585891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:46:53,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:46:53,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:46:53,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942133336] [2024-11-16 03:46:53,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:46:53,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:46:53,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:46:53,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:46:53,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:46:53,235 INFO L87 Difference]: Start difference. First operand 425 states and 585 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 03:46:53,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:46:53,716 INFO L93 Difference]: Finished difference Result 988 states and 1449 transitions. [2024-11-16 03:46:53,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:46:53,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 238 [2024-11-16 03:46:53,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:46:53,724 INFO L225 Difference]: With dead ends: 988 [2024-11-16 03:46:53,724 INFO L226 Difference]: Without dead ends: 705 [2024-11-16 03:46:53,725 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 03:46:53,726 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 89 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:46:53,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 231 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:46:53,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-16 03:46:53,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 565. [2024-11-16 03:46:53,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 564 states have (on average 1.3120567375886525) internal successors, (740), 564 states have internal predecessors, (740), 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 03:46:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 740 transitions. [2024-11-16 03:46:53,750 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 740 transitions. Word has length 238 [2024-11-16 03:46:53,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:46:53,751 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 740 transitions. [2024-11-16 03:46:53,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 03:46:53,752 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 740 transitions. [2024-11-16 03:46:53,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-16 03:46:53,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:46:53,756 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, 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] [2024-11-16 03:46:53,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:46:53,756 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:46:53,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:46:53,757 INFO L85 PathProgramCache]: Analyzing trace with hash -347865363, now seen corresponding path program 1 times [2024-11-16 03:46:53,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:46:53,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559125630] [2024-11-16 03:46:53,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:46:53,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:46:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:46:54,031 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:46:54,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:46:54,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559125630] [2024-11-16 03:46:54,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559125630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:46:54,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:46:54,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:46:54,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150092836] [2024-11-16 03:46:54,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:46:54,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:46:54,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:46:54,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:46:54,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:46:54,037 INFO L87 Difference]: Start difference. First operand 565 states and 740 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 03:46:54,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:46:54,535 INFO L93 Difference]: Finished difference Result 1128 states and 1543 transitions. [2024-11-16 03:46:54,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:46:54,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 244 [2024-11-16 03:46:54,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:46:54,538 INFO L225 Difference]: With dead ends: 1128 [2024-11-16 03:46:54,539 INFO L226 Difference]: Without dead ends: 705 [2024-11-16 03:46:54,540 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 03:46:54,542 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 23 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:46:54,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 220 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:46:54,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-16 03:46:54,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2024-11-16 03:46:54,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 704 states have (on average 1.2642045454545454) internal successors, (890), 704 states have internal predecessors, (890), 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 03:46:54,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 890 transitions. [2024-11-16 03:46:54,567 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 890 transitions. Word has length 244 [2024-11-16 03:46:54,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:46:54,568 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 890 transitions. [2024-11-16 03:46:54,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 03:46:54,569 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 890 transitions. [2024-11-16 03:46:54,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-16 03:46:54,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:46:54,573 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, 2, 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] [2024-11-16 03:46:54,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:46:54,574 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:46:54,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:46:54,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1940759698, now seen corresponding path program 1 times [2024-11-16 03:46:54,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:46:54,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966951541] [2024-11-16 03:46:54,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:46:54,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:46:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:46:55,100 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:46:55,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:46:55,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966951541] [2024-11-16 03:46:55,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966951541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:46:55,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:46:55,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 03:46:55,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777587073] [2024-11-16 03:46:55,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:46:55,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 03:46:55,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:46:55,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 03:46:55,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:46:55,104 INFO L87 Difference]: Start difference. First operand 705 states and 890 transitions. Second operand has 7 states, 7 states have (on average 36.142857142857146) internal successors, (253), 6 states have internal predecessors, (253), 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 03:46:55,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:46:55,520 INFO L93 Difference]: Finished difference Result 1324 states and 1684 transitions. [2024-11-16 03:46:55,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 03:46:55,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 36.142857142857146) internal successors, (253), 6 states have internal predecessors, (253), 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 253 [2024-11-16 03:46:55,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:46:55,524 INFO L225 Difference]: With dead ends: 1324 [2024-11-16 03:46:55,524 INFO L226 Difference]: Without dead ends: 705 [2024-11-16 03:46:55,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:46:55,531 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 143 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:46:55,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 23 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:46:55,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-16 03:46:55,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2024-11-16 03:46:55,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 704 states have (on average 1.2599431818181819) internal successors, (887), 704 states have internal predecessors, (887), 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 03:46:55,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 887 transitions. [2024-11-16 03:46:55,550 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 887 transitions. Word has length 253 [2024-11-16 03:46:55,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:46:55,552 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 887 transitions. [2024-11-16 03:46:55,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.142857142857146) internal successors, (253), 6 states have internal predecessors, (253), 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 03:46:55,552 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 887 transitions. [2024-11-16 03:46:55,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-16 03:46:55,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:46:55,556 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:46:55,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:46:55,557 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:46:55,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:46:55,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1489546420, now seen corresponding path program 1 times [2024-11-16 03:46:55,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:46:55,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352298936] [2024-11-16 03:46:55,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:46:55,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:46:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:46:56,043 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-16 03:46:56,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:46:56,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352298936] [2024-11-16 03:46:56,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352298936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:46:56,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:46:56,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:46:56,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124112832] [2024-11-16 03:46:56,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:46:56,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:46:56,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:46:56,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:46:56,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:46:56,047 INFO L87 Difference]: Start difference. First operand 705 states and 887 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 3 states have internal predecessors, (214), 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 03:46:56,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:46:56,577 INFO L93 Difference]: Finished difference Result 1268 states and 1623 transitions. [2024-11-16 03:46:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:46:56,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 3 states have internal predecessors, (214), 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 265 [2024-11-16 03:46:56,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:46:56,580 INFO L225 Difference]: With dead ends: 1268 [2024-11-16 03:46:56,580 INFO L226 Difference]: Without dead ends: 705 [2024-11-16 03:46:56,581 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 03:46:56,582 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 127 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:46:56,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 93 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:46:56,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-16 03:46:56,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2024-11-16 03:46:56,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 704 states have (on average 1.2528409090909092) internal successors, (882), 704 states have internal predecessors, (882), 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 03:46:56,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 882 transitions. [2024-11-16 03:46:56,596 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 882 transitions. Word has length 265 [2024-11-16 03:46:56,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:46:56,596 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 882 transitions. [2024-11-16 03:46:56,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 3 states have internal predecessors, (214), 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 03:46:56,596 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 882 transitions. [2024-11-16 03:46:56,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-11-16 03:46:56,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:46:56,600 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:46:56,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:46:56,601 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:46:56,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:46:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash -480595192, now seen corresponding path program 1 times [2024-11-16 03:46:56,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:46:56,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80295617] [2024-11-16 03:46:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:46:56,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:46:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:46:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 118 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:46:57,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:46:57,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80295617] [2024-11-16 03:46:57,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80295617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:46:57,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734184067] [2024-11-16 03:46:57,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:46:57,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:46:57,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:46:57,128 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 03:46:57,132 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 03:46:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:46:57,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:46:57,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:46:57,612 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-16 03:46:57,612 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:46:57,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734184067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:46:57,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:46:57,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-16 03:46:57,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704215898] [2024-11-16 03:46:57,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:46:57,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:46:57,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:46:57,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:46:57,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:46:57,615 INFO L87 Difference]: Start difference. First operand 705 states and 882 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 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 03:46:58,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:46:58,125 INFO L93 Difference]: Finished difference Result 1408 states and 1832 transitions. [2024-11-16 03:46:58,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:46:58,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 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 289 [2024-11-16 03:46:58,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:46:58,136 INFO L225 Difference]: With dead ends: 1408 [2024-11-16 03:46:58,136 INFO L226 Difference]: Without dead ends: 845 [2024-11-16 03:46:58,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:46:58,138 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 56 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:46:58,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 37 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:46:58,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-16 03:46:58,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2024-11-16 03:46:58,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 844 states have (on average 1.2393364928909953) internal successors, (1046), 844 states have internal predecessors, (1046), 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 03:46:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1046 transitions. [2024-11-16 03:46:58,155 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1046 transitions. Word has length 289 [2024-11-16 03:46:58,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:46:58,155 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1046 transitions. [2024-11-16 03:46:58,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 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 03:46:58,156 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1046 transitions. [2024-11-16 03:46:58,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-16 03:46:58,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:46:58,161 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:46:58,183 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 03:46:58,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-16 03:46:58,362 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:46:58,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:46:58,363 INFO L85 PathProgramCache]: Analyzing trace with hash -366060584, now seen corresponding path program 1 times [2024-11-16 03:46:58,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:46:58,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935241480] [2024-11-16 03:46:58,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:46:58,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:46:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:46:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 358 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:46:58,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:46:58,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935241480] [2024-11-16 03:46:58,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935241480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:46:58,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519283485] [2024-11-16 03:46:58,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:46:58,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:46:58,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:46:58,881 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 03:46:58,884 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 03:46:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:46:59,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:46:59,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:46:59,217 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-16 03:46:59,219 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:46:59,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519283485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:46:59,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:46:59,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 03:46:59,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174027801] [2024-11-16 03:46:59,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:46:59,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:46:59,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:46:59,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:46:59,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:46:59,222 INFO L87 Difference]: Start difference. First operand 845 states and 1046 transitions. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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 03:46:59,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:46:59,711 INFO L93 Difference]: Finished difference Result 2108 states and 2654 transitions. [2024-11-16 03:46:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:46:59,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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 358 [2024-11-16 03:46:59,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:46:59,717 INFO L225 Difference]: With dead ends: 2108 [2024-11-16 03:46:59,717 INFO L226 Difference]: Without dead ends: 1405 [2024-11-16 03:46:59,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:46:59,720 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 26 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:46:59,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 200 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:46:59,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2024-11-16 03:46:59,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1405. [2024-11-16 03:46:59,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1404 states have (on average 1.1972934472934473) internal successors, (1681), 1404 states have internal predecessors, (1681), 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 03:46:59,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1681 transitions. [2024-11-16 03:46:59,747 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1681 transitions. Word has length 358 [2024-11-16 03:46:59,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:46:59,747 INFO L471 AbstractCegarLoop]: Abstraction has 1405 states and 1681 transitions. [2024-11-16 03:46:59,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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 03:46:59,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1681 transitions. [2024-11-16 03:46:59,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2024-11-16 03:46:59,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:46:59,751 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:46:59,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 03:46:59,951 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,SelfDestructingSolverStorable6 [2024-11-16 03:46:59,953 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:46:59,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:46:59,953 INFO L85 PathProgramCache]: Analyzing trace with hash -799715977, now seen corresponding path program 1 times [2024-11-16 03:46:59,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:46:59,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949095205] [2024-11-16 03:46:59,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:46:59,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:47:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-16 03:47:00,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:47:00,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949095205] [2024-11-16 03:47:00,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949095205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:47:00,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:47:00,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:47:00,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676141060] [2024-11-16 03:47:00,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:47:00,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:47:00,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:47:00,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:47:00,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:47:00,255 INFO L87 Difference]: Start difference. First operand 1405 states and 1681 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 03:47:00,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:47:00,714 INFO L93 Difference]: Finished difference Result 3088 states and 3760 transitions. [2024-11-16 03:47:00,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:47:00,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 371 [2024-11-16 03:47:00,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:47:00,721 INFO L225 Difference]: With dead ends: 3088 [2024-11-16 03:47:00,721 INFO L226 Difference]: Without dead ends: 1825 [2024-11-16 03:47:00,723 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 03:47:00,723 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 89 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:47:00,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 230 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:47:00,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2024-11-16 03:47:00,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1685. [2024-11-16 03:47:00,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1684 states have (on average 1.1793349168646081) internal successors, (1986), 1684 states have internal predecessors, (1986), 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 03:47:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 1986 transitions. [2024-11-16 03:47:00,754 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 1986 transitions. Word has length 371 [2024-11-16 03:47:00,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:47:00,755 INFO L471 AbstractCegarLoop]: Abstraction has 1685 states and 1986 transitions. [2024-11-16 03:47:00,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 03:47:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 1986 transitions. [2024-11-16 03:47:00,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-16 03:47:00,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:47:00,759 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:47:00,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:47:00,759 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:47:00,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:47:00,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1237792067, now seen corresponding path program 1 times [2024-11-16 03:47:00,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:47:00,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438631903] [2024-11-16 03:47:00,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:00,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:47:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:01,362 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-16 03:47:01,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:47:01,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438631903] [2024-11-16 03:47:01,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438631903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:47:01,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:47:01,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:47:01,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317434197] [2024-11-16 03:47:01,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:47:01,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:47:01,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:47:01,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:47:01,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:47:01,365 INFO L87 Difference]: Start difference. First operand 1685 states and 1986 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 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 03:47:01,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:47:01,729 INFO L93 Difference]: Finished difference Result 3092 states and 3641 transitions. [2024-11-16 03:47:01,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:47:01,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 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 372 [2024-11-16 03:47:01,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:47:01,732 INFO L225 Difference]: With dead ends: 3092 [2024-11-16 03:47:01,732 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:47:01,735 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 03:47:01,737 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 89 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:47:01,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 15 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:47:01,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:47:01,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:47:01,738 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 03:47:01,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:47:01,740 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 372 [2024-11-16 03:47:01,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:47:01,740 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:47:01,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 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 03:47:01,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:47:01,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:47:01,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:47:01,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:47:01,749 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:47:01,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:47:01,855 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:47:01,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:47:01 BoogieIcfgContainer [2024-11-16 03:47:01,867 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:47:01,867 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:47:01,867 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:47:01,868 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:47:01,868 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:46:50" (3/4) ... [2024-11-16 03:47:01,870 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:47:01,886 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 03:47:01,887 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 03:47:01,888 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:47:01,889 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:47:02,037 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:47:02,038 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:47:02,038 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:47:02,039 INFO L158 Benchmark]: Toolchain (without parser) took 13416.29ms. Allocated memory was 176.2MB in the beginning and 383.8MB in the end (delta: 207.6MB). Free memory was 118.2MB in the beginning and 130.3MB in the end (delta: -12.1MB). Peak memory consumption was 197.5MB. Max. memory is 16.1GB. [2024-11-16 03:47:02,040 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 176.2MB. Free memory is still 139.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:47:02,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.07ms. Allocated memory is still 176.2MB. Free memory was 118.1MB in the beginning and 87.3MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-16 03:47:02,041 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.25ms. Allocated memory is still 176.2MB. Free memory was 87.3MB in the beginning and 79.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-16 03:47:02,041 INFO L158 Benchmark]: Boogie Preprocessor took 185.30ms. Allocated memory is still 176.2MB. Free memory was 79.3MB in the beginning and 139.3MB in the end (delta: -59.9MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-11-16 03:47:02,041 INFO L158 Benchmark]: IcfgBuilder took 1153.57ms. Allocated memory was 176.2MB in the beginning and 264.2MB in the end (delta: 88.1MB). Free memory was 138.4MB in the beginning and 220.2MB in the end (delta: -81.8MB). Peak memory consumption was 96.3MB. Max. memory is 16.1GB. [2024-11-16 03:47:02,042 INFO L158 Benchmark]: TraceAbstraction took 11206.92ms. Allocated memory was 264.2MB in the beginning and 383.8MB in the end (delta: 119.5MB). Free memory was 219.2MB in the beginning and 142.9MB in the end (delta: 76.3MB). Peak memory consumption was 195.8MB. Max. memory is 16.1GB. [2024-11-16 03:47:02,042 INFO L158 Benchmark]: Witness Printer took 170.67ms. Allocated memory is still 383.8MB. Free memory was 142.9MB in the beginning and 130.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 03:47:02,044 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 176.2MB. Free memory is still 139.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.07ms. Allocated memory is still 176.2MB. Free memory was 118.1MB in the beginning and 87.3MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.25ms. Allocated memory is still 176.2MB. Free memory was 87.3MB in the beginning and 79.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 185.30ms. Allocated memory is still 176.2MB. Free memory was 79.3MB in the beginning and 139.3MB in the end (delta: -59.9MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * IcfgBuilder took 1153.57ms. Allocated memory was 176.2MB in the beginning and 264.2MB in the end (delta: 88.1MB). Free memory was 138.4MB in the beginning and 220.2MB in the end (delta: -81.8MB). Peak memory consumption was 96.3MB. Max. memory is 16.1GB. * TraceAbstraction took 11206.92ms. Allocated memory was 264.2MB in the beginning and 383.8MB in the end (delta: 119.5MB). Free memory was 219.2MB in the beginning and 142.9MB in the end (delta: 76.3MB). Peak memory consumption was 195.8MB. Max. memory is 16.1GB. * Witness Printer took 170.67ms. Allocated memory is still 383.8MB. Free memory was 142.9MB in the beginning and 130.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. 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: 173]: 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, 209 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.0s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1109 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1109 mSDsluCounter, 1099 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 653 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3934 IncrementalHoareTripleChecker+Invalid, 4587 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 653 mSolverCounterUnsat, 1020 mSDtfsCounter, 3934 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 682 GetRequests, 656 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1685occurred in iteration=8, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 280 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 3092 NumberOfCodeBlocks, 3092 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 3081 ConstructedInterpolants, 0 QuantifiedInterpolants, 13375 SizeOfPredicates, 0 NumberOfNonLiveVariables, 881 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 2657/2798 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: 592]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:47:02,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE