./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label54.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label54.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 feb39bca06af67d7ac060da1dc3bc8180fef7df0c321a0d50ad90b8125c604ff --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 21:01:10,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 21:01:10,416 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 21:01:10,424 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 21:01:10,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 21:01:10,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 21:01:10,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 21:01:10,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 21:01:10,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 21:01:10,456 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 21:01:10,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 21:01:10,457 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 21:01:10,458 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 21:01:10,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 21:01:10,462 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 21:01:10,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 21:01:10,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 21:01:10,463 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 21:01:10,463 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 21:01:10,463 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 21:01:10,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 21:01:10,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 21:01:10,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 21:01:10,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 21:01:10,465 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 21:01:10,466 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 21:01:10,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 21:01:10,466 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 21:01:10,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 21:01:10,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 21:01:10,467 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 21:01:10,467 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 21:01:10,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:01:10,468 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 21:01:10,468 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 21:01:10,468 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 21:01:10,469 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 21:01:10,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 21:01:10,469 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 21:01:10,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 21:01:10,470 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 21:01:10,471 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 21:01:10,471 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> feb39bca06af67d7ac060da1dc3bc8180fef7df0c321a0d50ad90b8125c604ff [2024-10-23 21:01:10,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 21:01:10,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 21:01:10,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 21:01:10,760 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 21:01:10,761 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 21:01:10,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label54.c [2024-10-23 21:01:12,205 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 21:01:12,446 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 21:01:12,447 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label54.c [2024-10-23 21:01:12,463 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a5b1628/b01a36d8d1ad483497aa57b9bf1bf299/FLAG1c3187410 [2024-10-23 21:01:12,782 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a5b1628/b01a36d8d1ad483497aa57b9bf1bf299 [2024-10-23 21:01:12,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 21:01:12,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 21:01:12,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 21:01:12,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 21:01:12,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 21:01:12,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:01:12" (1/1) ... [2024-10-23 21:01:12,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e0371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:12, skipping insertion in model container [2024-10-23 21:01:12,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:01:12" (1/1) ... [2024-10-23 21:01:12,847 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 21:01:13,093 WARN L248 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_label54.c[7067,7080] [2024-10-23 21:01:13,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:01:13,242 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 21:01:13,272 WARN L248 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_label54.c[7067,7080] [2024-10-23 21:01:13,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:01:13,356 INFO L204 MainTranslator]: Completed translation [2024-10-23 21:01:13,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13 WrapperNode [2024-10-23 21:01:13,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 21:01:13,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 21:01:13,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 21:01:13,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 21:01:13,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13" (1/1) ... [2024-10-23 21:01:13,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13" (1/1) ... [2024-10-23 21:01:13,438 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 598 [2024-10-23 21:01:13,439 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 21:01:13,439 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 21:01:13,439 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 21:01:13,440 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 21:01:13,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13" (1/1) ... [2024-10-23 21:01:13,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13" (1/1) ... [2024-10-23 21:01:13,477 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13" (1/1) ... [2024-10-23 21:01:13,508 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]. [2024-10-23 21:01:13,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13" (1/1) ... [2024-10-23 21:01:13,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13" (1/1) ... [2024-10-23 21:01:13,536 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13" (1/1) ... [2024-10-23 21:01:13,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13" (1/1) ... [2024-10-23 21:01:13,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13" (1/1) ... [2024-10-23 21:01:13,560 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13" (1/1) ... [2024-10-23 21:01:13,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 21:01:13,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 21:01:13,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 21:01:13,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 21:01:13,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13" (1/1) ... [2024-10-23 21:01:13,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:01:13,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:01:13,609 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) [2024-10-23 21:01:13,612 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 [2024-10-23 21:01:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 21:01:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 21:01:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 21:01:13,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 21:01:13,741 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 21:01:13,743 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 21:01:14,876 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-10-23 21:01:14,876 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 21:01:14,937 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 21:01:14,937 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 21:01:14,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:01:14 BoogieIcfgContainer [2024-10-23 21:01:14,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 21:01:14,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 21:01:14,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 21:01:14,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 21:01:14,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:01:12" (1/3) ... [2024-10-23 21:01:14,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7134660a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:01:14, skipping insertion in model container [2024-10-23 21:01:14,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:01:13" (2/3) ... [2024-10-23 21:01:14,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7134660a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:01:14, skipping insertion in model container [2024-10-23 21:01:14,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:01:14" (3/3) ... [2024-10-23 21:01:14,950 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label54.c [2024-10-23 21:01:14,967 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 21:01:14,968 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 21:01:15,044 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 21:01:15,053 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;@4a0b9aaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 21:01:15,053 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 21:01:15,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 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) [2024-10-23 21:01:15,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-23 21:01:15,069 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:01:15,071 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:01:15,072 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:01:15,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:01:15,079 INFO L85 PathProgramCache]: Analyzing trace with hash 288036387, now seen corresponding path program 1 times [2024-10-23 21:01:15,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:01:15,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993368502] [2024-10-23 21:01:15,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:01:15,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:01:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:01:15,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:01:15,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:01:15,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993368502] [2024-10-23 21:01:15,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993368502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:01:15,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:01:15,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:01:15,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044758640] [2024-10-23 21:01:15,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:01:15,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 21:01:15,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:01:15,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 21:01:15,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:01:15,352 INFO L87 Difference]: Start difference. First operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 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 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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) [2024-10-23 21:01:15,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:01:15,391 INFO L93 Difference]: Finished difference Result 287 states and 563 transitions. [2024-10-23 21:01:15,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 21:01:15,394 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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 61 [2024-10-23 21:01:15,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:01:15,407 INFO L225 Difference]: With dead ends: 287 [2024-10-23 21:01:15,408 INFO L226 Difference]: Without dead ends: 142 [2024-10-23 21:01:15,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:01:15,416 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:01:15,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 21:01:15,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-10-23 21:01:15,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-10-23 21:01:15,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.5390070921985815) internal successors, (217), 141 states have internal predecessors, (217), 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) [2024-10-23 21:01:15,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 217 transitions. [2024-10-23 21:01:15,467 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 217 transitions. Word has length 61 [2024-10-23 21:01:15,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:01:15,468 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 217 transitions. [2024-10-23 21:01:15,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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) [2024-10-23 21:01:15,470 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 217 transitions. [2024-10-23 21:01:15,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-23 21:01:15,473 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:01:15,473 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:01:15,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 21:01:15,473 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:01:15,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:01:15,474 INFO L85 PathProgramCache]: Analyzing trace with hash -583722954, now seen corresponding path program 1 times [2024-10-23 21:01:15,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:01:15,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978399132] [2024-10-23 21:01:15,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:01:15,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:01:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:01:15,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:01:15,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:01:15,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978399132] [2024-10-23 21:01:15,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978399132] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:01:15,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:01:15,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:01:15,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626837910] [2024-10-23 21:01:15,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:01:15,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:01:15,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:01:15,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:01:15,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:01:15,740 INFO L87 Difference]: Start difference. First operand 142 states and 217 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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) [2024-10-23 21:01:16,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:01:16,352 INFO L93 Difference]: Finished difference Result 422 states and 648 transitions. [2024-10-23 21:01:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:01:16,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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 61 [2024-10-23 21:01:16,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:01:16,355 INFO L225 Difference]: With dead ends: 422 [2024-10-23 21:01:16,355 INFO L226 Difference]: Without dead ends: 281 [2024-10-23 21:01:16,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:01:16,359 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 85 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:01:16,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 65 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:01:16,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-10-23 21:01:16,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2024-10-23 21:01:16,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.3428571428571427) internal successors, (376), 280 states have internal predecessors, (376), 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) [2024-10-23 21:01:16,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 376 transitions. [2024-10-23 21:01:16,389 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 376 transitions. Word has length 61 [2024-10-23 21:01:16,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:01:16,390 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 376 transitions. [2024-10-23 21:01:16,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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) [2024-10-23 21:01:16,390 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 376 transitions. [2024-10-23 21:01:16,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-23 21:01:16,392 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:01:16,392 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:01:16,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 21:01:16,392 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:01:16,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:01:16,393 INFO L85 PathProgramCache]: Analyzing trace with hash 2146041442, now seen corresponding path program 1 times [2024-10-23 21:01:16,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:01:16,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135511716] [2024-10-23 21:01:16,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:01:16,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:01:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:01:16,676 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:01:16,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:01:16,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135511716] [2024-10-23 21:01:16,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135511716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:01:16,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:01:16,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:01:16,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305652728] [2024-10-23 21:01:16,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:01:16,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:01:16,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:01:16,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:01:16,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:01:16,680 INFO L87 Difference]: Start difference. First operand 281 states and 376 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:01:17,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:01:17,201 INFO L93 Difference]: Finished difference Result 700 states and 966 transitions. [2024-10-23 21:01:17,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:01:17,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-10-23 21:01:17,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:01:17,204 INFO L225 Difference]: With dead ends: 700 [2024-10-23 21:01:17,204 INFO L226 Difference]: Without dead ends: 420 [2024-10-23 21:01:17,205 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 [2024-10-23 21:01:17,207 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 84 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:01:17,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 212 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 21:01:17,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-10-23 21:01:17,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2024-10-23 21:01:17,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 419 states have (on average 1.2529832935560858) internal successors, (525), 419 states have internal predecessors, (525), 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) [2024-10-23 21:01:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 525 transitions. [2024-10-23 21:01:17,231 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 525 transitions. Word has length 127 [2024-10-23 21:01:17,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:01:17,235 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 525 transitions. [2024-10-23 21:01:17,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:01:17,236 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 525 transitions. [2024-10-23 21:01:17,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-23 21:01:17,241 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:01:17,242 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:01:17,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 21:01:17,242 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:01:17,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:01:17,243 INFO L85 PathProgramCache]: Analyzing trace with hash -697018787, now seen corresponding path program 1 times [2024-10-23 21:01:17,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:01:17,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265944139] [2024-10-23 21:01:17,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:01:17,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:01:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:01:17,508 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:01:17,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:01:17,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265944139] [2024-10-23 21:01:17,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265944139] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:01:17,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:01:17,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:01:17,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868060563] [2024-10-23 21:01:17,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:01:17,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:01:17,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:01:17,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:01:17,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:01:17,514 INFO L87 Difference]: Start difference. First operand 420 states and 525 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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) [2024-10-23 21:01:17,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:01:17,914 INFO L93 Difference]: Finished difference Result 978 states and 1208 transitions. [2024-10-23 21:01:17,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:01:17,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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 134 [2024-10-23 21:01:17,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:01:17,917 INFO L225 Difference]: With dead ends: 978 [2024-10-23 21:01:17,917 INFO L226 Difference]: Without dead ends: 559 [2024-10-23 21:01:17,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:01:17,920 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:01:17,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 75 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 21:01:17,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-10-23 21:01:17,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2024-10-23 21:01:17,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.2078853046594982) internal successors, (674), 558 states have internal predecessors, (674), 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) [2024-10-23 21:01:17,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 674 transitions. [2024-10-23 21:01:17,948 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 674 transitions. Word has length 134 [2024-10-23 21:01:17,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:01:17,948 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 674 transitions. [2024-10-23 21:01:17,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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) [2024-10-23 21:01:17,948 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 674 transitions. [2024-10-23 21:01:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-23 21:01:17,965 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:01:17,966 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:01:17,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 21:01:17,966 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:01:17,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:01:17,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1728197272, now seen corresponding path program 1 times [2024-10-23 21:01:17,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:01:17,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388078173] [2024-10-23 21:01:17,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:01:17,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:01:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:01:18,344 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:01:18,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:01:18,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388078173] [2024-10-23 21:01:18,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388078173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:01:18,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:01:18,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-23 21:01:18,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374107165] [2024-10-23 21:01:18,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:01:18,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-23 21:01:18,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:01:18,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-23 21:01:18,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-23 21:01:18,347 INFO L87 Difference]: Start difference. First operand 559 states and 674 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 6 states have internal predecessors, (136), 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) [2024-10-23 21:01:18,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:01:18,747 INFO L93 Difference]: Finished difference Result 1033 states and 1253 transitions. [2024-10-23 21:01:18,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-23 21:01:18,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 6 states have internal predecessors, (136), 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 136 [2024-10-23 21:01:18,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:01:18,753 INFO L225 Difference]: With dead ends: 1033 [2024-10-23 21:01:18,753 INFO L226 Difference]: Without dead ends: 559 [2024-10-23 21:01:18,754 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 [2024-10-23 21:01:18,755 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 142 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:01:18,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 17 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 21:01:18,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-10-23 21:01:18,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2024-10-23 21:01:18,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.2025089605734767) internal successors, (671), 558 states have internal predecessors, (671), 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) [2024-10-23 21:01:18,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 671 transitions. [2024-10-23 21:01:18,773 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 671 transitions. Word has length 136 [2024-10-23 21:01:18,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:01:18,773 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 671 transitions. [2024-10-23 21:01:18,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 6 states have internal predecessors, (136), 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) [2024-10-23 21:01:18,774 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 671 transitions. [2024-10-23 21:01:18,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-23 21:01:18,776 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:01:18,776 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-23 21:01:18,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 21:01:18,776 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:01:18,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:01:18,777 INFO L85 PathProgramCache]: Analyzing trace with hash -104913808, now seen corresponding path program 1 times [2024-10-23 21:01:18,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:01:18,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708523112] [2024-10-23 21:01:18,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:01:18,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:01:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:01:18,909 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:01:18,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:01:18,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708523112] [2024-10-23 21:01:18,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708523112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:01:18,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:01:18,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:01:18,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633671616] [2024-10-23 21:01:18,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:01:18,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:01:18,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:01:18,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:01:18,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:01:18,912 INFO L87 Difference]: Start difference. First operand 559 states and 671 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 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) [2024-10-23 21:01:19,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:01:19,381 INFO L93 Difference]: Finished difference Result 1256 states and 1565 transitions. [2024-10-23 21:01:19,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:01:19,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 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 152 [2024-10-23 21:01:19,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:01:19,388 INFO L225 Difference]: With dead ends: 1256 [2024-10-23 21:01:19,388 INFO L226 Difference]: Without dead ends: 837 [2024-10-23 21:01:19,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:01:19,391 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 87 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:01:19,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 32 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 21:01:19,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2024-10-23 21:01:19,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 837. [2024-10-23 21:01:19,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 836 states have (on average 1.1997607655502391) internal successors, (1003), 836 states have internal predecessors, (1003), 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) [2024-10-23 21:01:19,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1003 transitions. [2024-10-23 21:01:19,416 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1003 transitions. Word has length 152 [2024-10-23 21:01:19,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:01:19,418 INFO L471 AbstractCegarLoop]: Abstraction has 837 states and 1003 transitions. [2024-10-23 21:01:19,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 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) [2024-10-23 21:01:19,418 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1003 transitions. [2024-10-23 21:01:19,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-23 21:01:19,420 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:01:19,420 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-23 21:01:19,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 21:01:19,420 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:01:19,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:01:19,421 INFO L85 PathProgramCache]: Analyzing trace with hash 264534718, now seen corresponding path program 1 times [2024-10-23 21:01:19,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:01:19,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306249015] [2024-10-23 21:01:19,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:01:19,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:01:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:01:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:01:19,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:01:19,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306249015] [2024-10-23 21:01:19,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306249015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:01:19,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:01:19,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:01:19,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248038817] [2024-10-23 21:01:19,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:01:19,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:01:19,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:01:19,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:01:19,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:01:19,622 INFO L87 Difference]: Start difference. First operand 837 states and 1003 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2024-10-23 21:01:20,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:01:20,090 INFO L93 Difference]: Finished difference Result 1673 states and 2051 transitions. [2024-10-23 21:01:20,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:01:20,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 172 [2024-10-23 21:01:20,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:01:20,094 INFO L225 Difference]: With dead ends: 1673 [2024-10-23 21:01:20,094 INFO L226 Difference]: Without dead ends: 976 [2024-10-23 21:01:20,095 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 [2024-10-23 21:01:20,098 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 93 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:01:20,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 187 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 21:01:20,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2024-10-23 21:01:20,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 976. [2024-10-23 21:01:20,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 975 states have (on average 1.1456410256410257) internal successors, (1117), 975 states have internal predecessors, (1117), 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) [2024-10-23 21:01:20,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1117 transitions. [2024-10-23 21:01:20,116 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1117 transitions. Word has length 172 [2024-10-23 21:01:20,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:01:20,117 INFO L471 AbstractCegarLoop]: Abstraction has 976 states and 1117 transitions. [2024-10-23 21:01:20,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2024-10-23 21:01:20,117 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1117 transitions. [2024-10-23 21:01:20,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-10-23 21:01:20,120 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:01:20,120 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:01:20,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 21:01:20,121 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:01:20,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:01:20,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1478986965, now seen corresponding path program 1 times [2024-10-23 21:01:20,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:01:20,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513878505] [2024-10-23 21:01:20,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:01:20,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:01:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:01:20,575 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-10-23 21:01:20,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:01:20,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513878505] [2024-10-23 21:01:20,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513878505] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:01:20,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088837532] [2024-10-23 21:01:20,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:01:20,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:01:20,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:01:20,579 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) [2024-10-23 21:01:20,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 21:01:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:01:20,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 21:01:20,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:01:21,036 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-10-23 21:01:21,037 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:01:21,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088837532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:01:21,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:01:21,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-10-23 21:01:21,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672136042] [2024-10-23 21:01:21,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:01:21,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:01:21,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:01:21,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:01:21,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:01:21,039 INFO L87 Difference]: Start difference. First operand 976 states and 1117 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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) [2024-10-23 21:01:21,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:01:21,502 INFO L93 Difference]: Finished difference Result 1534 states and 1758 transitions. [2024-10-23 21:01:21,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:01:21,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 245 [2024-10-23 21:01:21,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:01:21,507 INFO L225 Difference]: With dead ends: 1534 [2024-10-23 21:01:21,507 INFO L226 Difference]: Without dead ends: 1532 [2024-10-23 21:01:21,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:01:21,509 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:01:21,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 9 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 21:01:21,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2024-10-23 21:01:21,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1115. [2024-10-23 21:01:21,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1114 states have (on average 1.1714542190305206) internal successors, (1305), 1114 states have internal predecessors, (1305), 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) [2024-10-23 21:01:21,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1305 transitions. [2024-10-23 21:01:21,528 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1305 transitions. Word has length 245 [2024-10-23 21:01:21,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:01:21,528 INFO L471 AbstractCegarLoop]: Abstraction has 1115 states and 1305 transitions. [2024-10-23 21:01:21,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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) [2024-10-23 21:01:21,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1305 transitions. [2024-10-23 21:01:21,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-10-23 21:01:21,532 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:01:21,533 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:01:21,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-23 21:01:21,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:01:21,738 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:01:21,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:01:21,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1761940533, now seen corresponding path program 1 times [2024-10-23 21:01:21,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:01:21,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414641104] [2024-10-23 21:01:21,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:01:21,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:01:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:01:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 79 proven. 40 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-10-23 21:01:22,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:01:22,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414641104] [2024-10-23 21:01:22,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414641104] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:01:22,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689983154] [2024-10-23 21:01:22,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:01:22,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:01:22,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:01:22,448 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) [2024-10-23 21:01:22,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-23 21:01:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:01:22,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 21:01:22,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:01:22,677 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-10-23 21:01:22,677 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:01:22,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689983154] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:01:22,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:01:22,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-23 21:01:22,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596661342] [2024-10-23 21:01:22,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:01:22,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:01:22,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:01:22,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:01:22,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-10-23 21:01:22,679 INFO L87 Difference]: Start difference. First operand 1115 states and 1305 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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) [2024-10-23 21:01:23,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:01:23,148 INFO L93 Difference]: Finished difference Result 2368 states and 2843 transitions. [2024-10-23 21:01:23,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:01:23,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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 309 [2024-10-23 21:01:23,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:01:23,153 INFO L225 Difference]: With dead ends: 2368 [2024-10-23 21:01:23,153 INFO L226 Difference]: Without dead ends: 1393 [2024-10-23 21:01:23,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-10-23 21:01:23,155 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 80 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:01:23,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 222 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 21:01:23,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2024-10-23 21:01:23,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1254. [2024-10-23 21:01:23,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1253 states have (on average 1.1644054269752593) internal successors, (1459), 1253 states have internal predecessors, (1459), 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) [2024-10-23 21:01:23,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1459 transitions. [2024-10-23 21:01:23,175 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1459 transitions. Word has length 309 [2024-10-23 21:01:23,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:01:23,176 INFO L471 AbstractCegarLoop]: Abstraction has 1254 states and 1459 transitions. [2024-10-23 21:01:23,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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) [2024-10-23 21:01:23,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1459 transitions. [2024-10-23 21:01:23,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-10-23 21:01:23,181 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:01:23,181 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:01:23,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-23 21:01:23,381 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,SelfDestructingSolverStorable8 [2024-10-23 21:01:23,382 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:01:23,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:01:23,382 INFO L85 PathProgramCache]: Analyzing trace with hash -643705803, now seen corresponding path program 1 times [2024-10-23 21:01:23,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:01:23,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143732975] [2024-10-23 21:01:23,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:01:23,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:01:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:01:23,646 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-10-23 21:01:23,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:01:23,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143732975] [2024-10-23 21:01:23,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143732975] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:01:23,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:01:23,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:01:23,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466462898] [2024-10-23 21:01:23,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:01:23,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:01:23,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:01:23,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:01:23,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:01:23,648 INFO L87 Difference]: Start difference. First operand 1254 states and 1459 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 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) [2024-10-23 21:01:24,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:01:24,118 INFO L93 Difference]: Finished difference Result 2644 states and 3075 transitions. [2024-10-23 21:01:24,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:01:24,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 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 360 [2024-10-23 21:01:24,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:01:24,119 INFO L225 Difference]: With dead ends: 2644 [2024-10-23 21:01:24,119 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 21:01:24,121 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 [2024-10-23 21:01:24,122 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 80 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:01:24,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 219 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 21:01:24,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 21:01:24,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 21:01:24,123 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) [2024-10-23 21:01:24,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 21:01:24,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 360 [2024-10-23 21:01:24,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:01:24,123 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 21:01:24,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 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) [2024-10-23 21:01:24,123 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 21:01:24,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 21:01:24,126 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 21:01:24,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 21:01:24,129 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:01:24,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 21:01:24,264 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 21:01:24,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:01:24 BoogieIcfgContainer [2024-10-23 21:01:24,287 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 21:01:24,288 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 21:01:24,288 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 21:01:24,288 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 21:01:24,288 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:01:14" (3/4) ... [2024-10-23 21:01:24,290 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 21:01:24,308 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-23 21:01:24,308 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-23 21:01:24,309 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-23 21:01:24,310 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 21:01:24,464 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 21:01:24,464 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 21:01:24,465 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 21:01:24,465 INFO L158 Benchmark]: Toolchain (without parser) took 11679.75ms. Allocated memory was 159.4MB in the beginning and 337.6MB in the end (delta: 178.3MB). Free memory was 104.6MB in the beginning and 255.4MB in the end (delta: -150.7MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2024-10-23 21:01:24,465 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 21:01:24,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 569.87ms. Allocated memory is still 159.4MB. Free memory was 104.6MB in the beginning and 74.8MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-23 21:01:24,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.20ms. Allocated memory is still 159.4MB. Free memory was 74.8MB in the beginning and 66.9MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-23 21:01:24,466 INFO L158 Benchmark]: Boogie Preprocessor took 131.61ms. Allocated memory is still 159.4MB. Free memory was 66.9MB in the beginning and 117.4MB in the end (delta: -50.5MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2024-10-23 21:01:24,466 INFO L158 Benchmark]: RCFGBuilder took 1367.22ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 117.4MB in the beginning and 166.0MB in the end (delta: -48.6MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2024-10-23 21:01:24,466 INFO L158 Benchmark]: TraceAbstraction took 9344.13ms. Allocated memory was 232.8MB in the beginning and 337.6MB in the end (delta: 104.9MB). Free memory was 165.0MB in the beginning and 266.9MB in the end (delta: -101.9MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-10-23 21:01:24,467 INFO L158 Benchmark]: Witness Printer took 177.06ms. Allocated memory is still 337.6MB. Free memory was 266.9MB in the beginning and 255.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-23 21:01:24,468 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 569.87ms. Allocated memory is still 159.4MB. Free memory was 104.6MB in the beginning and 74.8MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.20ms. Allocated memory is still 159.4MB. Free memory was 74.8MB in the beginning and 66.9MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 131.61ms. Allocated memory is still 159.4MB. Free memory was 66.9MB in the beginning and 117.4MB in the end (delta: -50.5MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1367.22ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 117.4MB in the beginning and 166.0MB in the end (delta: -48.6MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9344.13ms. Allocated memory was 232.8MB in the beginning and 337.6MB in the end (delta: 104.9MB). Free memory was 165.0MB in the beginning and 266.9MB in the end (delta: -101.9MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Witness Printer took 177.06ms. Allocated memory is still 337.6MB. Free memory was 266.9MB in the beginning and 255.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. 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: 200]: 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, 144 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 787 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 787 mSDsluCounter, 1255 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 468 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3348 IncrementalHoareTripleChecker+Invalid, 3816 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 468 mSolverCounterUnsat, 1215 mSDtfsCounter, 3348 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 585 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1254occurred in iteration=9, InterpolantAutomatonStates: 33, 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, 10 MinimizatonAttempts, 556 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 2311 NumberOfCodeBlocks, 2311 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2299 ConstructedInterpolants, 0 QuantifiedInterpolants, 8306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 756 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 1437/1569 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]: Loop Invariant Derived loop invariant: ((((((((a10 == 0) && (14 == a4)) && (a12 == 0)) || (((a19 == 9) && (14 == a4)) && (a12 == 0))) || ((((a19 <= 9) && (4 <= a10)) && (14 == a4)) && (a12 == 0))) || ((((a19 <= 9) && (14 == a4)) && (a10 == 2)) && (a12 == 0))) || (((14 == a4) && (a12 == 0)) && (a19 == 6))) || (((a10 == 1) && (14 == a4)) && (a12 == 0))) RESULT: Ultimate proved your program to be correct! [2024-10-23 21:01:24,499 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