./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label32.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/eca-rers2012/Problem15_label32.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 492f3884ca52ad1e2a4bb1a7ea4174df881161f6f116a98f5375f793f3d1436b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-21 22:22:57,895 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 22:22:57,964 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-21 22:22:57,970 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 22:22:57,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 22:22:58,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 22:22:58,007 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 22:22:58,007 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 22:22:58,008 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-21 22:22:58,011 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-21 22:22:58,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 22:22:58,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 22:22:58,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 22:22:58,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 22:22:58,012 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 22:22:58,013 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 22:22:58,014 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 22:22:58,015 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 22:22:58,015 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 22:22:58,015 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 22:22:58,015 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 22:22:58,016 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 22:22:58,016 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 22:22:58,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 22:22:58,016 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-21 22:22:58,017 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 22:22:58,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 22:22:58,017 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 22:22:58,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 22:22:58,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 22:22:58,017 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 22:22:58,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 22:22:58,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:22:58,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 22:22:58,018 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 22:22:58,018 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 22:22:58,018 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 22:22:58,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 22:22:58,019 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 22:22:58,019 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-21 22:22:58,020 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-21 22:22:58,020 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-21 22:22:58,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 492f3884ca52ad1e2a4bb1a7ea4174df881161f6f116a98f5375f793f3d1436b [2024-11-21 22:22:58,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 22:22:58,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 22:22:58,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 22:22:58,287 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 22:22:58,288 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 22:22:58,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label32.c [2024-11-21 22:22:59,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-21 22:22:59,755 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 22:22:59,755 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label32.c [2024-11-21 22:22:59,770 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/049c463a5/3a93dfea38174b2985f94c16fb14f086/FLAG6209a6a2d [2024-11-21 22:22:59,784 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/049c463a5/3a93dfea38174b2985f94c16fb14f086 [2024-11-21 22:22:59,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 22:22:59,787 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 22:22:59,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 22:22:59,790 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 22:22:59,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 22:22:59,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:59" (1/1) ... [2024-11-21 22:22:59,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a137d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:59, skipping insertion in model container [2024-11-21 22:22:59,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:59" (1/1) ... [2024-11-21 22:22:59,853 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 22:23:00,117 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label32.c[6074,6087] [2024-11-21 22:23:00,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:23:00,404 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 22:23:00,426 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label32.c[6074,6087] [2024-11-21 22:23:00,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:23:00,562 INFO L204 MainTranslator]: Completed translation [2024-11-21 22:23:00,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00 WrapperNode [2024-11-21 22:23:00,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 22:23:00,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 22:23:00,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 22:23:00,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 22:23:00,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00" (1/1) ... [2024-11-21 22:23:00,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00" (1/1) ... [2024-11-21 22:23:00,767 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1760 [2024-11-21 22:23:00,767 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 22:23:00,768 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 22:23:00,768 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 22:23:00,768 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 22:23:00,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00" (1/1) ... [2024-11-21 22:23:00,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00" (1/1) ... [2024-11-21 22:23:00,800 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00" (1/1) ... [2024-11-21 22:23:00,849 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-21 22:23:00,849 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00" (1/1) ... [2024-11-21 22:23:00,849 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00" (1/1) ... [2024-11-21 22:23:00,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00" (1/1) ... [2024-11-21 22:23:00,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00" (1/1) ... [2024-11-21 22:23:00,925 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00" (1/1) ... [2024-11-21 22:23:00,936 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00" (1/1) ... [2024-11-21 22:23:01,041 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 22:23:01,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 22:23:01,043 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 22:23:01,044 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 22:23:01,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00" (1/1) ... [2024-11-21 22:23:01,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:23:01,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:23:01,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-21 22:23:01,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-21 22:23:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 22:23:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-21 22:23:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 22:23:01,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 22:23:01,170 INFO L238 CfgBuilder]: Building ICFG [2024-11-21 22:23:01,173 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 22:23:03,455 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-21 22:23:03,459 INFO L287 CfgBuilder]: Performing block encoding [2024-11-21 22:23:03,482 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 22:23:03,482 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-21 22:23:03,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:03 BoogieIcfgContainer [2024-11-21 22:23:03,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 22:23:03,488 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 22:23:03,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 22:23:03,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 22:23:03,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:22:59" (1/3) ... [2024-11-21 22:23:03,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232e126b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:03, skipping insertion in model container [2024-11-21 22:23:03,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:00" (2/3) ... [2024-11-21 22:23:03,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232e126b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:03, skipping insertion in model container [2024-11-21 22:23:03,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:03" (3/3) ... [2024-11-21 22:23:03,493 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label32.c [2024-11-21 22:23:03,506 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 22:23:03,506 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-21 22:23:03,555 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-21 22:23:03,564 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;@28185645, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 22:23:03,564 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 22:23:03,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:03,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-21 22:23:03,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:03,575 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] [2024-11-21 22:23:03,575 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:03,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:03,579 INFO L85 PathProgramCache]: Analyzing trace with hash 301649817, now seen corresponding path program 1 times [2024-11-21 22:23:03,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:03,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474121044] [2024-11-21 22:23:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:03,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:03,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:23:03,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:03,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474121044] [2024-11-21 22:23:03,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474121044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:03,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:03,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:23:03,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682346311] [2024-11-21 22:23:03,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:03,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:03,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:03,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:03,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:03,919 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:05,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:05,414 INFO L93 Difference]: Finished difference Result 1155 states and 2106 transitions. [2024-11-21 22:23:05,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:05,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 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 49 [2024-11-21 22:23:05,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:05,429 INFO L225 Difference]: With dead ends: 1155 [2024-11-21 22:23:05,430 INFO L226 Difference]: Without dead ends: 667 [2024-11-21 22:23:05,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:05,437 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 295 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:05,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 371 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-21 22:23:05,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-21 22:23:05,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 665. [2024-11-21 22:23:05,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 1.4789156626506024) internal successors, (982), 664 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:05,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 982 transitions. [2024-11-21 22:23:05,495 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 982 transitions. Word has length 49 [2024-11-21 22:23:05,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:05,495 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 982 transitions. [2024-11-21 22:23:05,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:05,496 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 982 transitions. [2024-11-21 22:23:05,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-21 22:23:05,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:05,499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:05,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 22:23:05,500 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:05,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:05,500 INFO L85 PathProgramCache]: Analyzing trace with hash 449029183, now seen corresponding path program 1 times [2024-11-21 22:23:05,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:05,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825590014] [2024-11-21 22:23:05,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:05,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:05,677 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:23:05,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:05,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825590014] [2024-11-21 22:23:05,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825590014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:05,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:05,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:23:05,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871845069] [2024-11-21 22:23:05,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:05,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:05,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:05,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:05,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:05,685 INFO L87 Difference]: Start difference. First operand 665 states and 982 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:07,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:07,309 INFO L93 Difference]: Finished difference Result 1955 states and 2894 transitions. [2024-11-21 22:23:07,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:07,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 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 124 [2024-11-21 22:23:07,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:07,320 INFO L225 Difference]: With dead ends: 1955 [2024-11-21 22:23:07,321 INFO L226 Difference]: Without dead ends: 1292 [2024-11-21 22:23:07,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:07,332 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 258 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:07,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 327 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-21 22:23:07,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2024-11-21 22:23:07,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1282. [2024-11-21 22:23:07,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 1.3989071038251366) internal successors, (1792), 1281 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:07,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1792 transitions. [2024-11-21 22:23:07,377 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1792 transitions. Word has length 124 [2024-11-21 22:23:07,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:07,378 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1792 transitions. [2024-11-21 22:23:07,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:07,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1792 transitions. [2024-11-21 22:23:07,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-21 22:23:07,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:07,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:07,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 22:23:07,381 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:07,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:07,382 INFO L85 PathProgramCache]: Analyzing trace with hash 760398793, now seen corresponding path program 1 times [2024-11-21 22:23:07,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:07,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067730802] [2024-11-21 22:23:07,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:07,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:07,569 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:23:07,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:07,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067730802] [2024-11-21 22:23:07,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067730802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:07,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:07,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:23:07,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408613655] [2024-11-21 22:23:07,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:07,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:07,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:07,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:07,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:07,572 INFO L87 Difference]: Start difference. First operand 1282 states and 1792 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:09,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:09,332 INFO L93 Difference]: Finished difference Result 3764 states and 5263 transitions. [2024-11-21 22:23:09,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:09,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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 128 [2024-11-21 22:23:09,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:09,344 INFO L225 Difference]: With dead ends: 3764 [2024-11-21 22:23:09,344 INFO L226 Difference]: Without dead ends: 2484 [2024-11-21 22:23:09,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:09,354 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 236 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:09,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 366 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-21 22:23:09,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2024-11-21 22:23:09,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 2182. [2024-11-21 22:23:09,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2181 states have (on average 1.2815222375057314) internal successors, (2795), 2181 states have internal predecessors, (2795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:09,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 2795 transitions. [2024-11-21 22:23:09,414 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 2795 transitions. Word has length 128 [2024-11-21 22:23:09,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:09,419 INFO L471 AbstractCegarLoop]: Abstraction has 2182 states and 2795 transitions. [2024-11-21 22:23:09,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:09,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 2795 transitions. [2024-11-21 22:23:09,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-21 22:23:09,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:09,425 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:09,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 22:23:09,426 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:09,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:09,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1127115852, now seen corresponding path program 1 times [2024-11-21 22:23:09,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:09,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938289771] [2024-11-21 22:23:09,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:09,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:09,813 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-21 22:23:09,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:09,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938289771] [2024-11-21 22:23:09,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938289771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:09,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:09,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:23:09,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262970177] [2024-11-21 22:23:09,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:09,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:09,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:09,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:09,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:09,815 INFO L87 Difference]: Start difference. First operand 2182 states and 2795 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:11,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:11,018 INFO L93 Difference]: Finished difference Result 6166 states and 7961 transitions. [2024-11-21 22:23:11,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:11,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 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 219 [2024-11-21 22:23:11,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:11,027 INFO L225 Difference]: With dead ends: 6166 [2024-11-21 22:23:11,027 INFO L226 Difference]: Without dead ends: 3986 [2024-11-21 22:23:11,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:11,030 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:11,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 339 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-21 22:23:11,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2024-11-21 22:23:11,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 3682. [2024-11-21 22:23:11,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3682 states, 3681 states have (on average 1.2200488997555012) internal successors, (4491), 3681 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:11,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 4491 transitions. [2024-11-21 22:23:11,072 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 4491 transitions. Word has length 219 [2024-11-21 22:23:11,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:11,073 INFO L471 AbstractCegarLoop]: Abstraction has 3682 states and 4491 transitions. [2024-11-21 22:23:11,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:11,073 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 4491 transitions. [2024-11-21 22:23:11,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-11-21 22:23:11,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:11,076 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:11,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-21 22:23:11,076 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:11,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:11,077 INFO L85 PathProgramCache]: Analyzing trace with hash 172169868, now seen corresponding path program 1 times [2024-11-21 22:23:11,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:11,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501388797] [2024-11-21 22:23:11,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:11,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:11,605 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-21 22:23:11,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:11,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501388797] [2024-11-21 22:23:11,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501388797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:11,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:11,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:23:11,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629493314] [2024-11-21 22:23:11,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:11,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:11,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:11,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:11,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:11,611 INFO L87 Difference]: Start difference. First operand 3682 states and 4491 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:12,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:12,620 INFO L93 Difference]: Finished difference Result 7661 states and 9291 transitions. [2024-11-21 22:23:12,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:12,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 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 321 [2024-11-21 22:23:12,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:12,631 INFO L225 Difference]: With dead ends: 7661 [2024-11-21 22:23:12,632 INFO L226 Difference]: Without dead ends: 3981 [2024-11-21 22:23:12,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:12,637 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:12,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 359 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-21 22:23:12,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3981 states. [2024-11-21 22:23:12,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3981 to 3981. [2024-11-21 22:23:12,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3981 states, 3980 states have (on average 1.2050251256281408) internal successors, (4796), 3980 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:12,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3981 states to 3981 states and 4796 transitions. [2024-11-21 22:23:12,694 INFO L78 Accepts]: Start accepts. Automaton has 3981 states and 4796 transitions. Word has length 321 [2024-11-21 22:23:12,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:12,695 INFO L471 AbstractCegarLoop]: Abstraction has 3981 states and 4796 transitions. [2024-11-21 22:23:12,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:12,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3981 states and 4796 transitions. [2024-11-21 22:23:12,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-21 22:23:12,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:12,699 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:12,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-21 22:23:12,699 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:12,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:12,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1380021629, now seen corresponding path program 1 times [2024-11-21 22:23:12,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:12,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659288211] [2024-11-21 22:23:12,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:12,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:12,989 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-21 22:23:12,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:12,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659288211] [2024-11-21 22:23:12,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659288211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:12,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:12,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:23:12,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496418757] [2024-11-21 22:23:12,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:12,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:12,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:12,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:12,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:12,994 INFO L87 Difference]: Start difference. First operand 3981 states and 4796 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:14,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:14,438 INFO L93 Difference]: Finished difference Result 9465 states and 11674 transitions. [2024-11-21 22:23:14,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:14,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 336 [2024-11-21 22:23:14,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:14,461 INFO L225 Difference]: With dead ends: 9465 [2024-11-21 22:23:14,461 INFO L226 Difference]: Without dead ends: 5785 [2024-11-21 22:23:14,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:14,468 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 267 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:14,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 671 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-21 22:23:14,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5785 states. [2024-11-21 22:23:14,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5785 to 5783. [2024-11-21 22:23:14,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5783 states, 5782 states have (on average 1.1675890695261155) internal successors, (6751), 5782 states have internal predecessors, (6751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:14,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5783 states to 5783 states and 6751 transitions. [2024-11-21 22:23:14,536 INFO L78 Accepts]: Start accepts. Automaton has 5783 states and 6751 transitions. Word has length 336 [2024-11-21 22:23:14,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:14,537 INFO L471 AbstractCegarLoop]: Abstraction has 5783 states and 6751 transitions. [2024-11-21 22:23:14,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:14,538 INFO L276 IsEmpty]: Start isEmpty. Operand 5783 states and 6751 transitions. [2024-11-21 22:23:14,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-21 22:23:14,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:14,542 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:14,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-21 22:23:14,542 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:14,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:14,543 INFO L85 PathProgramCache]: Analyzing trace with hash 591064250, now seen corresponding path program 1 times [2024-11-21 22:23:14,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:14,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464728513] [2024-11-21 22:23:14,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:14,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 93 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:23:15,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:15,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464728513] [2024-11-21 22:23:15,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464728513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:23:15,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203435360] [2024-11-21 22:23:15,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:15,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:23:15,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:23:15,363 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:23:15,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-21 22:23:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:15,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-21 22:23:15,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:23:15,618 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:23:15,618 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:23:15,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203435360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:15,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:23:15,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-21 22:23:15,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680779582] [2024-11-21 22:23:15,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:15,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:15,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:15,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:15,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:23:15,620 INFO L87 Difference]: Start difference. First operand 5783 states and 6751 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:16,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:16,776 INFO L93 Difference]: Finished difference Result 13366 states and 15917 transitions. [2024-11-21 22:23:16,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:16,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 395 [2024-11-21 22:23:16,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:16,802 INFO L225 Difference]: With dead ends: 13366 [2024-11-21 22:23:16,802 INFO L226 Difference]: Without dead ends: 7884 [2024-11-21 22:23:16,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:23:16,822 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 274 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:16,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 263 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-21 22:23:16,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7884 states. [2024-11-21 22:23:16,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7884 to 7281. [2024-11-21 22:23:16,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7281 states, 7280 states have (on average 1.1616758241758243) internal successors, (8457), 7280 states have internal predecessors, (8457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:16,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7281 states to 7281 states and 8457 transitions. [2024-11-21 22:23:16,969 INFO L78 Accepts]: Start accepts. Automaton has 7281 states and 8457 transitions. Word has length 395 [2024-11-21 22:23:16,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:16,969 INFO L471 AbstractCegarLoop]: Abstraction has 7281 states and 8457 transitions. [2024-11-21 22:23:16,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:16,970 INFO L276 IsEmpty]: Start isEmpty. Operand 7281 states and 8457 transitions. [2024-11-21 22:23:16,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2024-11-21 22:23:16,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:16,976 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:16,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-21 22:23:17,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:23:17,180 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:17,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:17,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1995258059, now seen corresponding path program 1 times [2024-11-21 22:23:17,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:17,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72144440] [2024-11-21 22:23:17,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:17,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-11-21 22:23:17,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:17,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72144440] [2024-11-21 22:23:17,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72144440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:17,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:17,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:23:17,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738077847] [2024-11-21 22:23:17,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:17,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:17,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:17,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:17,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:17,556 INFO L87 Difference]: Start difference. First operand 7281 states and 8457 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:18,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:18,694 INFO L93 Difference]: Finished difference Result 16059 states and 18985 transitions. [2024-11-21 22:23:18,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:18,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 500 [2024-11-21 22:23:18,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:18,774 INFO L225 Difference]: With dead ends: 16059 [2024-11-21 22:23:18,781 INFO L226 Difference]: Without dead ends: 9079 [2024-11-21 22:23:18,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:18,789 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 282 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:18,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 611 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-21 22:23:18,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9079 states. [2024-11-21 22:23:18,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9079 to 9078. [2024-11-21 22:23:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9078 states, 9077 states have (on average 1.1453123278616284) internal successors, (10396), 9077 states have internal predecessors, (10396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:19,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9078 states to 9078 states and 10396 transitions. [2024-11-21 22:23:19,042 INFO L78 Accepts]: Start accepts. Automaton has 9078 states and 10396 transitions. Word has length 500 [2024-11-21 22:23:19,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:19,043 INFO L471 AbstractCegarLoop]: Abstraction has 9078 states and 10396 transitions. [2024-11-21 22:23:19,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:19,044 INFO L276 IsEmpty]: Start isEmpty. Operand 9078 states and 10396 transitions. [2024-11-21 22:23:19,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2024-11-21 22:23:19,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:19,058 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:19,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-21 22:23:19,058 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:19,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:19,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1513408573, now seen corresponding path program 1 times [2024-11-21 22:23:19,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:19,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195782057] [2024-11-21 22:23:19,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:19,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2024-11-21 22:23:19,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:19,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195782057] [2024-11-21 22:23:19,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195782057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:19,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:19,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:23:19,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722526364] [2024-11-21 22:23:19,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:19,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:19,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:19,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:19,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:19,560 INFO L87 Difference]: Start difference. First operand 9078 states and 10396 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:21,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:21,009 INFO L93 Difference]: Finished difference Result 20240 states and 23484 transitions. [2024-11-21 22:23:21,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:21,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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 523 [2024-11-21 22:23:21,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:21,028 INFO L225 Difference]: With dead ends: 20240 [2024-11-21 22:23:21,029 INFO L226 Difference]: Without dead ends: 11463 [2024-11-21 22:23:21,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:21,037 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 287 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:21,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 273 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-21 22:23:21,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11463 states. [2024-11-21 22:23:21,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11463 to 8170. [2024-11-21 22:23:21,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8170 states, 8169 states have (on average 1.1724813318643652) internal successors, (9578), 8169 states have internal predecessors, (9578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:21,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8170 states to 8170 states and 9578 transitions. [2024-11-21 22:23:21,184 INFO L78 Accepts]: Start accepts. Automaton has 8170 states and 9578 transitions. Word has length 523 [2024-11-21 22:23:21,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:21,186 INFO L471 AbstractCegarLoop]: Abstraction has 8170 states and 9578 transitions. [2024-11-21 22:23:21,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:21,186 INFO L276 IsEmpty]: Start isEmpty. Operand 8170 states and 9578 transitions. [2024-11-21 22:23:21,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2024-11-21 22:23:21,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:21,191 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:23:21,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-21 22:23:21,191 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:21,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:21,192 INFO L85 PathProgramCache]: Analyzing trace with hash 737054137, now seen corresponding path program 1 times [2024-11-21 22:23:21,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:21,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428821127] [2024-11-21 22:23:21,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:21,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:21,651 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 549 proven. 39 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-21 22:23:21,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:21,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428821127] [2024-11-21 22:23:21,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428821127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:23:21,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423001832] [2024-11-21 22:23:21,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:21,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:23:21,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:23:21,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:23:21,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 22:23:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:21,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-21 22:23:21,877 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:23:22,474 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 549 proven. 39 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-21 22:23:22,474 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 22:23:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 549 proven. 39 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-21 22:23:23,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423001832] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 22:23:23,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 22:23:23,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-21 22:23:23,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339142188] [2024-11-21 22:23:23,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 22:23:23,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-21 22:23:23,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:23,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-21 22:23:23,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-21 22:23:23,043 INFO L87 Difference]: Start difference. First operand 8170 states and 9578 transitions. Second operand has 9 states, 9 states have (on average 82.55555555555556) internal successors, (743), 8 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:27,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:27,823 INFO L93 Difference]: Finished difference Result 23775 states and 27447 transitions. [2024-11-21 22:23:27,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-21 22:23:27,824 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 82.55555555555556) internal successors, (743), 8 states have internal predecessors, (743), 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 576 [2024-11-21 22:23:27,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:27,838 INFO L225 Difference]: With dead ends: 23775 [2024-11-21 22:23:27,838 INFO L226 Difference]: Without dead ends: 11460 [2024-11-21 22:23:27,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1161 GetRequests, 1147 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-11-21 22:23:27,848 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 3061 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 5647 mSolverCounterSat, 720 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3061 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 6367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 720 IncrementalHoareTripleChecker+Valid, 5647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:27,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3061 Valid, 247 Invalid, 6367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [720 Valid, 5647 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-21 22:23:27,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11460 states. [2024-11-21 22:23:27,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11460 to 10859. [2024-11-21 22:23:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10859 states, 10858 states have (on average 1.0684288082519802) internal successors, (11601), 10858 states have internal predecessors, (11601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:27,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10859 states to 10859 states and 11601 transitions. [2024-11-21 22:23:27,931 INFO L78 Accepts]: Start accepts. Automaton has 10859 states and 11601 transitions. Word has length 576 [2024-11-21 22:23:27,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:27,931 INFO L471 AbstractCegarLoop]: Abstraction has 10859 states and 11601 transitions. [2024-11-21 22:23:27,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 82.55555555555556) internal successors, (743), 8 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:27,932 INFO L276 IsEmpty]: Start isEmpty. Operand 10859 states and 11601 transitions. [2024-11-21 22:23:27,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2024-11-21 22:23:27,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:27,936 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:27,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-21 22:23:28,136 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,SelfDestructingSolverStorable9 [2024-11-21 22:23:28,137 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:28,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:28,138 INFO L85 PathProgramCache]: Analyzing trace with hash 766630606, now seen corresponding path program 1 times [2024-11-21 22:23:28,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:28,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365731324] [2024-11-21 22:23:28,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:28,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 396 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-21 22:23:28,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:28,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365731324] [2024-11-21 22:23:28,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365731324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:28,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:28,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:23:28,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026133664] [2024-11-21 22:23:28,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:28,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:28,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:28,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:28,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:28,525 INFO L87 Difference]: Start difference. First operand 10859 states and 11601 transitions. Second operand has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:29,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:29,396 INFO L93 Difference]: Finished difference Result 25005 states and 26779 transitions. [2024-11-21 22:23:29,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:29,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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 576 [2024-11-21 22:23:29,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:29,413 INFO L225 Difference]: With dead ends: 25005 [2024-11-21 22:23:29,414 INFO L226 Difference]: Without dead ends: 14447 [2024-11-21 22:23:29,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:29,423 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 200 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:29,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 160 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-21 22:23:29,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14447 states. [2024-11-21 22:23:29,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14447 to 13251. [2024-11-21 22:23:29,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 1.0698867924528301) internal successors, (14176), 13250 states have internal predecessors, (14176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:29,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 14176 transitions. [2024-11-21 22:23:29,619 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 14176 transitions. Word has length 576 [2024-11-21 22:23:29,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:29,620 INFO L471 AbstractCegarLoop]: Abstraction has 13251 states and 14176 transitions. [2024-11-21 22:23:29,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:29,620 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 14176 transitions. [2024-11-21 22:23:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2024-11-21 22:23:29,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:29,626 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:29,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-21 22:23:29,627 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:29,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:29,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1687499565, now seen corresponding path program 1 times [2024-11-21 22:23:29,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:29,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224587892] [2024-11-21 22:23:29,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:29,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:30,056 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-21 22:23:30,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:30,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224587892] [2024-11-21 22:23:30,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224587892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:30,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:30,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:23:30,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169904056] [2024-11-21 22:23:30,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:30,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:30,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:30,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:30,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:30,059 INFO L87 Difference]: Start difference. First operand 13251 states and 14176 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:30,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:30,918 INFO L93 Difference]: Finished difference Result 28591 states and 30652 transitions. [2024-11-21 22:23:30,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:30,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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 584 [2024-11-21 22:23:30,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:30,939 INFO L225 Difference]: With dead ends: 28591 [2024-11-21 22:23:30,943 INFO L226 Difference]: Without dead ends: 15342 [2024-11-21 22:23:30,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:30,965 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 268 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:30,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 529 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-21 22:23:30,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15342 states. [2024-11-21 22:23:31,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15342 to 15043. [2024-11-21 22:23:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15043 states, 15042 states have (on average 1.0613615210743252) internal successors, (15965), 15042 states have internal predecessors, (15965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:31,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15043 states to 15043 states and 15965 transitions. [2024-11-21 22:23:31,301 INFO L78 Accepts]: Start accepts. Automaton has 15043 states and 15965 transitions. Word has length 584 [2024-11-21 22:23:31,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:31,302 INFO L471 AbstractCegarLoop]: Abstraction has 15043 states and 15965 transitions. [2024-11-21 22:23:31,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 15043 states and 15965 transitions. [2024-11-21 22:23:31,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2024-11-21 22:23:31,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:31,308 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:31,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-21 22:23:31,309 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:31,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1450712014, now seen corresponding path program 1 times [2024-11-21 22:23:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:31,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314269873] [2024-11-21 22:23:31,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:31,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:31,871 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-11-21 22:23:31,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:31,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314269873] [2024-11-21 22:23:31,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314269873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:31,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:31,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:23:31,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374313731] [2024-11-21 22:23:31,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:31,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:31,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:31,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:31,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:31,873 INFO L87 Difference]: Start difference. First operand 15043 states and 15965 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:32,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:32,819 INFO L93 Difference]: Finished difference Result 35185 states and 37431 transitions. [2024-11-21 22:23:32,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:32,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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 587 [2024-11-21 22:23:32,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:32,859 INFO L225 Difference]: With dead ends: 35185 [2024-11-21 22:23:32,859 INFO L226 Difference]: Without dead ends: 20144 [2024-11-21 22:23:32,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:32,874 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 278 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:32,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 510 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-21 22:23:32,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20144 states. [2024-11-21 22:23:33,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20144 to 19232. [2024-11-21 22:23:33,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19232 states, 19231 states have (on average 1.060007279912641) internal successors, (20385), 19231 states have internal predecessors, (20385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:33,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19232 states to 19232 states and 20385 transitions. [2024-11-21 22:23:33,150 INFO L78 Accepts]: Start accepts. Automaton has 19232 states and 20385 transitions. Word has length 587 [2024-11-21 22:23:33,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:33,150 INFO L471 AbstractCegarLoop]: Abstraction has 19232 states and 20385 transitions. [2024-11-21 22:23:33,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:33,151 INFO L276 IsEmpty]: Start isEmpty. Operand 19232 states and 20385 transitions. [2024-11-21 22:23:33,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-21 22:23:33,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:33,155 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:23:33,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-21 22:23:33,155 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:33,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:33,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1082506167, now seen corresponding path program 1 times [2024-11-21 22:23:33,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:33,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407748881] [2024-11-21 22:23:33,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:33,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 142 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:23:33,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:33,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407748881] [2024-11-21 22:23:33,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407748881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:23:33,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503568164] [2024-11-21 22:23:33,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:33,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:23:33,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:23:33,889 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:23:33,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-21 22:23:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:34,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-21 22:23:34,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:23:34,280 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 362 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:23:34,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:23:34,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503568164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:34,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:23:34,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-21 22:23:34,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104574969] [2024-11-21 22:23:34,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:34,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:34,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:34,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:34,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 22:23:34,282 INFO L87 Difference]: Start difference. First operand 19232 states and 20385 transitions. Second operand has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:35,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:35,033 INFO L93 Difference]: Finished difference Result 37863 states and 40127 transitions. [2024-11-21 22:23:35,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:35,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 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 594 [2024-11-21 22:23:35,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:35,050 INFO L225 Difference]: With dead ends: 37863 [2024-11-21 22:23:35,051 INFO L226 Difference]: Without dead ends: 18932 [2024-11-21 22:23:35,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 22:23:35,062 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 105 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:35,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 397 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-21 22:23:35,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18932 states. [2024-11-21 22:23:35,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18932 to 18927. [2024-11-21 22:23:35,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18927 states, 18926 states have (on average 1.051357920321251) internal successors, (19898), 18926 states have internal predecessors, (19898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:35,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18927 states to 18927 states and 19898 transitions. [2024-11-21 22:23:35,355 INFO L78 Accepts]: Start accepts. Automaton has 18927 states and 19898 transitions. Word has length 594 [2024-11-21 22:23:35,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:35,356 INFO L471 AbstractCegarLoop]: Abstraction has 18927 states and 19898 transitions. [2024-11-21 22:23:35,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:35,356 INFO L276 IsEmpty]: Start isEmpty. Operand 18927 states and 19898 transitions. [2024-11-21 22:23:35,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2024-11-21 22:23:35,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:35,366 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:35,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-21 22:23:35,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:23:35,567 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:35,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:35,567 INFO L85 PathProgramCache]: Analyzing trace with hash -595355950, now seen corresponding path program 1 times [2024-11-21 22:23:35,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:35,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672716248] [2024-11-21 22:23:35,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:35,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:36,015 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-21 22:23:36,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:36,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672716248] [2024-11-21 22:23:36,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672716248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:36,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:36,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 22:23:36,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065565055] [2024-11-21 22:23:36,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:36,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:23:36,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:36,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:23:36,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:23:36,018 INFO L87 Difference]: Start difference. First operand 18927 states and 19898 transitions. Second operand has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:37,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:37,234 INFO L93 Difference]: Finished difference Result 40549 states and 42612 transitions. [2024-11-21 22:23:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:23:37,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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 670 [2024-11-21 22:23:37,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:37,254 INFO L225 Difference]: With dead ends: 40549 [2024-11-21 22:23:37,254 INFO L226 Difference]: Without dead ends: 21923 [2024-11-21 22:23:37,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:23:37,268 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 623 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:37,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 423 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-21 22:23:37,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21923 states. [2024-11-21 22:23:37,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21923 to 21323. [2024-11-21 22:23:37,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21323 states, 21322 states have (on average 1.0417409248663352) internal successors, (22212), 21322 states have internal predecessors, (22212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:37,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21323 states to 21323 states and 22212 transitions. [2024-11-21 22:23:37,532 INFO L78 Accepts]: Start accepts. Automaton has 21323 states and 22212 transitions. Word has length 670 [2024-11-21 22:23:37,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:37,533 INFO L471 AbstractCegarLoop]: Abstraction has 21323 states and 22212 transitions. [2024-11-21 22:23:37,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:37,533 INFO L276 IsEmpty]: Start isEmpty. Operand 21323 states and 22212 transitions. [2024-11-21 22:23:37,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-11-21 22:23:37,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:37,540 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:37,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-21 22:23:37,540 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:37,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:37,540 INFO L85 PathProgramCache]: Analyzing trace with hash -682004269, now seen corresponding path program 1 times [2024-11-21 22:23:37,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:37,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847610711] [2024-11-21 22:23:37,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:37,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:38,348 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 465 proven. 188 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-21 22:23:38,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:38,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847610711] [2024-11-21 22:23:38,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847610711] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:23:38,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140416784] [2024-11-21 22:23:38,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:38,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:23:38,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:23:38,353 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:23:38,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-21 22:23:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:38,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-21 22:23:38,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:23:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 465 proven. 170 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-21 22:23:38,876 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 22:23:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2024-11-21 22:23:39,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140416784] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-21 22:23:39,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-21 22:23:39,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 5] total 9 [2024-11-21 22:23:39,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814209795] [2024-11-21 22:23:39,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:39,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:39,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:39,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:39,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-21 22:23:39,236 INFO L87 Difference]: Start difference. First operand 21323 states and 22212 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:40,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:40,112 INFO L93 Difference]: Finished difference Result 46238 states and 48210 transitions. [2024-11-21 22:23:40,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:40,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 695 [2024-11-21 22:23:40,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:40,135 INFO L225 Difference]: With dead ends: 46238 [2024-11-21 22:23:40,135 INFO L226 Difference]: Without dead ends: 24917 [2024-11-21 22:23:40,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1392 GetRequests, 1385 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-21 22:23:40,150 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 293 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:40,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 440 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-21 22:23:40,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24917 states. [2024-11-21 22:23:40,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24917 to 20420. [2024-11-21 22:23:40,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20420 states, 20419 states have (on average 1.0395220138106664) internal successors, (21226), 20419 states have internal predecessors, (21226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:40,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20420 states to 20420 states and 21226 transitions. [2024-11-21 22:23:40,314 INFO L78 Accepts]: Start accepts. Automaton has 20420 states and 21226 transitions. Word has length 695 [2024-11-21 22:23:40,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:40,315 INFO L471 AbstractCegarLoop]: Abstraction has 20420 states and 21226 transitions. [2024-11-21 22:23:40,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:40,315 INFO L276 IsEmpty]: Start isEmpty. Operand 20420 states and 21226 transitions. [2024-11-21 22:23:40,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2024-11-21 22:23:40,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:40,321 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:40,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-21 22:23:40,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-21 22:23:40,522 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:40,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:40,523 INFO L85 PathProgramCache]: Analyzing trace with hash 928252187, now seen corresponding path program 1 times [2024-11-21 22:23:40,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:40,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166388422] [2024-11-21 22:23:40,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:40,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:40,870 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 617 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-21 22:23:40,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:40,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166388422] [2024-11-21 22:23:40,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166388422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:40,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:40,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:23:40,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768136621] [2024-11-21 22:23:40,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:40,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:40,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:40,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:40,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:40,873 INFO L87 Difference]: Start difference. First operand 20420 states and 21226 transitions. Second operand has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:41,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:41,620 INFO L93 Difference]: Finished difference Result 40539 states and 42149 transitions. [2024-11-21 22:23:41,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:41,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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 709 [2024-11-21 22:23:41,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:41,638 INFO L225 Difference]: With dead ends: 40539 [2024-11-21 22:23:41,639 INFO L226 Difference]: Without dead ends: 20420 [2024-11-21 22:23:41,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:41,650 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 239 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:41,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 503 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-21 22:23:41,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20420 states. [2024-11-21 22:23:41,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20420 to 20121. [2024-11-21 22:23:41,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20121 states, 20120 states have (on average 1.026093439363817) internal successors, (20645), 20120 states have internal predecessors, (20645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20121 states to 20121 states and 20645 transitions. [2024-11-21 22:23:41,790 INFO L78 Accepts]: Start accepts. Automaton has 20121 states and 20645 transitions. Word has length 709 [2024-11-21 22:23:41,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:41,791 INFO L471 AbstractCegarLoop]: Abstraction has 20121 states and 20645 transitions. [2024-11-21 22:23:41,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:41,791 INFO L276 IsEmpty]: Start isEmpty. Operand 20121 states and 20645 transitions. [2024-11-21 22:23:41,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2024-11-21 22:23:41,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:41,797 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:41,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-21 22:23:41,797 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:41,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:41,798 INFO L85 PathProgramCache]: Analyzing trace with hash -273853800, now seen corresponding path program 1 times [2024-11-21 22:23:41,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:41,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432525811] [2024-11-21 22:23:41,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:41,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:42,199 INFO L134 CoverageAnalysis]: Checked inductivity of 849 backedges. 455 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2024-11-21 22:23:42,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:42,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432525811] [2024-11-21 22:23:42,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432525811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:42,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:42,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:23:42,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078424207] [2024-11-21 22:23:42,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:42,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:42,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:42,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:42,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:42,204 INFO L87 Difference]: Start difference. First operand 20121 states and 20645 transitions. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:43,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:43,179 INFO L93 Difference]: Finished difference Result 45337 states and 46532 transitions. [2024-11-21 22:23:43,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:43,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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 710 [2024-11-21 22:23:43,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:43,208 INFO L225 Difference]: With dead ends: 45337 [2024-11-21 22:23:43,208 INFO L226 Difference]: Without dead ends: 25517 [2024-11-21 22:23:43,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:43,223 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 346 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:43,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 126 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-21 22:23:43,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25517 states. [2024-11-21 22:23:43,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25517 to 21614. [2024-11-21 22:23:43,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21614 states, 21613 states have (on average 1.0254013787997964) internal successors, (22162), 21613 states have internal predecessors, (22162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:43,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21614 states to 21614 states and 22162 transitions. [2024-11-21 22:23:43,497 INFO L78 Accepts]: Start accepts. Automaton has 21614 states and 22162 transitions. Word has length 710 [2024-11-21 22:23:43,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:43,497 INFO L471 AbstractCegarLoop]: Abstraction has 21614 states and 22162 transitions. [2024-11-21 22:23:43,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:43,498 INFO L276 IsEmpty]: Start isEmpty. Operand 21614 states and 22162 transitions. [2024-11-21 22:23:43,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 741 [2024-11-21 22:23:43,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:43,509 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:43,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-21 22:23:43,510 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:43,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:43,510 INFO L85 PathProgramCache]: Analyzing trace with hash 314643271, now seen corresponding path program 1 times [2024-11-21 22:23:43,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:43,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254640789] [2024-11-21 22:23:43,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:43,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:44,458 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 551 proven. 188 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-21 22:23:44,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:44,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254640789] [2024-11-21 22:23:44,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254640789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:23:44,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311161356] [2024-11-21 22:23:44,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:44,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:23:44,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:23:44,461 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:23:44,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-21 22:23:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:44,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 22:23:44,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:23:44,868 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-21 22:23:44,869 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:23:44,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311161356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:44,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:23:44,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-21 22:23:44,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994335288] [2024-11-21 22:23:44,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:44,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:23:44,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:44,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:23:44,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:23:44,870 INFO L87 Difference]: Start difference. First operand 21614 states and 22162 transitions. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:46,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:46,159 INFO L93 Difference]: Finished difference Result 49522 states and 50735 transitions. [2024-11-21 22:23:46,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:23:46,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 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 740 [2024-11-21 22:23:46,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:46,183 INFO L225 Difference]: With dead ends: 49522 [2024-11-21 22:23:46,184 INFO L226 Difference]: Without dead ends: 28209 [2024-11-21 22:23:46,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 738 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:23:46,198 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 507 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:46,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 135 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-21 22:23:46,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28209 states. [2024-11-21 22:23:46,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28209 to 26111. [2024-11-21 22:23:46,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26111 states, 26110 states have (on average 1.0239371888165454) internal successors, (26735), 26110 states have internal predecessors, (26735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:46,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26111 states to 26111 states and 26735 transitions. [2024-11-21 22:23:46,404 INFO L78 Accepts]: Start accepts. Automaton has 26111 states and 26735 transitions. Word has length 740 [2024-11-21 22:23:46,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:46,404 INFO L471 AbstractCegarLoop]: Abstraction has 26111 states and 26735 transitions. [2024-11-21 22:23:46,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:46,405 INFO L276 IsEmpty]: Start isEmpty. Operand 26111 states and 26735 transitions. [2024-11-21 22:23:46,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2024-11-21 22:23:46,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:46,416 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:23:46,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-21 22:23:46,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:23:46,617 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:46,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:46,617 INFO L85 PathProgramCache]: Analyzing trace with hash -777087747, now seen corresponding path program 1 times [2024-11-21 22:23:46,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:46,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614067961] [2024-11-21 22:23:46,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:46,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:46,984 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 503 proven. 0 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2024-11-21 22:23:46,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:46,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614067961] [2024-11-21 22:23:46,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614067961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:46,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:46,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:23:46,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708357118] [2024-11-21 22:23:46,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:46,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:46,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:46,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:46,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:46,989 INFO L87 Difference]: Start difference. First operand 26111 states and 26735 transitions. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:47,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:47,789 INFO L93 Difference]: Finished difference Result 56416 states and 57773 transitions. [2024-11-21 22:23:47,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:47,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 795 [2024-11-21 22:23:47,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:47,817 INFO L225 Difference]: With dead ends: 56416 [2024-11-21 22:23:47,817 INFO L226 Difference]: Without dead ends: 30606 [2024-11-21 22:23:47,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:47,834 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 220 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:47,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 469 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-21 22:23:47,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30606 states. [2024-11-21 22:23:48,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30606 to 24614. [2024-11-21 22:23:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24614 states, 24613 states have (on average 1.0241335879413318) internal successors, (25207), 24613 states have internal predecessors, (25207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:48,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24614 states to 24614 states and 25207 transitions. [2024-11-21 22:23:48,110 INFO L78 Accepts]: Start accepts. Automaton has 24614 states and 25207 transitions. Word has length 795 [2024-11-21 22:23:48,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:48,110 INFO L471 AbstractCegarLoop]: Abstraction has 24614 states and 25207 transitions. [2024-11-21 22:23:48,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:48,110 INFO L276 IsEmpty]: Start isEmpty. Operand 24614 states and 25207 transitions. [2024-11-21 22:23:48,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2024-11-21 22:23:48,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:48,117 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:48,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-21 22:23:48,118 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:48,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:48,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1723359335, now seen corresponding path program 1 times [2024-11-21 22:23:48,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:48,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005247394] [2024-11-21 22:23:48,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:48,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:48,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 634 proven. 0 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2024-11-21 22:23:48,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:48,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005247394] [2024-11-21 22:23:48,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005247394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:48,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:48,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:23:48,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160633403] [2024-11-21 22:23:48,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:48,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:48,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:48,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:48,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:48,475 INFO L87 Difference]: Start difference. First operand 24614 states and 25207 transitions. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:49,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:49,256 INFO L93 Difference]: Finished difference Result 49225 states and 50414 transitions. [2024-11-21 22:23:49,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:49,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 797 [2024-11-21 22:23:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:49,277 INFO L225 Difference]: With dead ends: 49225 [2024-11-21 22:23:49,278 INFO L226 Difference]: Without dead ends: 24912 [2024-11-21 22:23:49,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:49,292 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 221 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:49,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 460 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-21 22:23:49,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24912 states. [2024-11-21 22:23:49,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24912 to 21918. [2024-11-21 22:23:49,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21918 states, 21917 states have (on average 1.0233152347492813) internal successors, (22428), 21917 states have internal predecessors, (22428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:49,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21918 states to 21918 states and 22428 transitions. [2024-11-21 22:23:49,464 INFO L78 Accepts]: Start accepts. Automaton has 21918 states and 22428 transitions. Word has length 797 [2024-11-21 22:23:49,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:49,464 INFO L471 AbstractCegarLoop]: Abstraction has 21918 states and 22428 transitions. [2024-11-21 22:23:49,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:49,465 INFO L276 IsEmpty]: Start isEmpty. Operand 21918 states and 22428 transitions. [2024-11-21 22:23:49,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2024-11-21 22:23:49,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:49,476 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:49,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-21 22:23:49,476 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:49,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:49,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1708390119, now seen corresponding path program 1 times [2024-11-21 22:23:49,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:49,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221034229] [2024-11-21 22:23:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:49,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:50,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1605 backedges. 1003 proven. 0 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2024-11-21 22:23:50,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:50,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221034229] [2024-11-21 22:23:50,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221034229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:50,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:50,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 22:23:50,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672144078] [2024-11-21 22:23:50,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:50,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:23:50,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:50,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:23:50,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:23:50,180 INFO L87 Difference]: Start difference. First operand 21918 states and 22428 transitions. Second operand has 4 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:51,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:51,429 INFO L93 Difference]: Finished difference Result 27016 states and 27612 transitions. [2024-11-21 22:23:51,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:23:51,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 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 957 [2024-11-21 22:23:51,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:51,452 INFO L225 Difference]: With dead ends: 27016 [2024-11-21 22:23:51,452 INFO L226 Difference]: Without dead ends: 27014 [2024-11-21 22:23:51,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:23:51,460 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 500 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:51,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 124 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-21 22:23:51,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27014 states. [2024-11-21 22:23:51,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27014 to 19821. [2024-11-21 22:23:51,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19821 states, 19820 states have (on average 1.0237134207870837) internal successors, (20290), 19820 states have internal predecessors, (20290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:51,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19821 states to 19821 states and 20290 transitions. [2024-11-21 22:23:51,629 INFO L78 Accepts]: Start accepts. Automaton has 19821 states and 20290 transitions. Word has length 957 [2024-11-21 22:23:51,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:51,630 INFO L471 AbstractCegarLoop]: Abstraction has 19821 states and 20290 transitions. [2024-11-21 22:23:51,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:51,630 INFO L276 IsEmpty]: Start isEmpty. Operand 19821 states and 20290 transitions. [2024-11-21 22:23:51,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2024-11-21 22:23:51,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:51,640 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:51,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-21 22:23:51,640 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:51,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:51,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1095696722, now seen corresponding path program 1 times [2024-11-21 22:23:51,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:51,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117434365] [2024-11-21 22:23:51,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:51,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:52,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1928 backedges. 833 proven. 0 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2024-11-21 22:23:52,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:52,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117434365] [2024-11-21 22:23:52,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117434365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:23:52,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:23:52,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:23:52,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478532577] [2024-11-21 22:23:52,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:23:52,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:23:52,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:23:52,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:23:52,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:52,436 INFO L87 Difference]: Start difference. First operand 19821 states and 20290 transitions. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:53,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:23:53,315 INFO L93 Difference]: Finished difference Result 43839 states and 44862 transitions. [2024-11-21 22:23:53,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:23:53,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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 1043 [2024-11-21 22:23:53,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:23:53,338 INFO L225 Difference]: With dead ends: 43839 [2024-11-21 22:23:53,338 INFO L226 Difference]: Without dead ends: 24319 [2024-11-21 22:23:53,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:23:53,351 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 177 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-21 22:23:53,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 482 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-21 22:23:53,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24319 states. [2024-11-21 22:23:53,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24319 to 22214. [2024-11-21 22:23:53,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22214 states, 22213 states have (on average 1.0220141358663846) internal successors, (22702), 22213 states have internal predecessors, (22702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:53,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22214 states to 22214 states and 22702 transitions. [2024-11-21 22:23:53,537 INFO L78 Accepts]: Start accepts. Automaton has 22214 states and 22702 transitions. Word has length 1043 [2024-11-21 22:23:53,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:23:53,538 INFO L471 AbstractCegarLoop]: Abstraction has 22214 states and 22702 transitions. [2024-11-21 22:23:53,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:23:53,538 INFO L276 IsEmpty]: Start isEmpty. Operand 22214 states and 22702 transitions. [2024-11-21 22:23:53,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1128 [2024-11-21 22:23:53,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:23:53,549 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:23:53,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-21 22:23:53,550 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:23:53,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:23:53,550 INFO L85 PathProgramCache]: Analyzing trace with hash -690998195, now seen corresponding path program 1 times [2024-11-21 22:23:53,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:23:53,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927700934] [2024-11-21 22:23:53,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:53,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:23:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2394 backedges. 94 proven. 1121 refuted. 0 times theorem prover too weak. 1179 trivial. 0 not checked. [2024-11-21 22:23:54,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:23:54,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927700934] [2024-11-21 22:23:54,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927700934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:23:54,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185534053] [2024-11-21 22:23:54,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:23:54,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:23:54,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:23:54,718 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:23:54,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-21 22:23:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:23:54,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-21 22:23:54,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:23:58,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2394 backedges. 730 proven. 569 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2024-11-21 22:23:58,934 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 22:24:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2394 backedges. 94 proven. 1121 refuted. 0 times theorem prover too weak. 1179 trivial. 0 not checked. [2024-11-21 22:24:01,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185534053] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 22:24:01,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 22:24:01,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 10 [2024-11-21 22:24:01,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201052740] [2024-11-21 22:24:01,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 22:24:01,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-21 22:24:01,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:24:01,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-21 22:24:01,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-21 22:24:01,670 INFO L87 Difference]: Start difference. First operand 22214 states and 22702 transitions. Second operand has 11 states, 11 states have (on average 111.72727272727273) internal successors, (1229), 10 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:24:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:24:05,471 INFO L93 Difference]: Finished difference Result 60303 states and 61636 transitions. [2024-11-21 22:24:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-21 22:24:05,472 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 111.72727272727273) internal successors, (1229), 10 states have internal predecessors, (1229), 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 1127 [2024-11-21 22:24:05,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:24:05,510 INFO L225 Difference]: With dead ends: 60303 [2024-11-21 22:24:05,510 INFO L226 Difference]: Without dead ends: 38390 [2024-11-21 22:24:05,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2263 GetRequests, 2247 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2024-11-21 22:24:05,526 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 2552 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 4127 mSolverCounterSat, 585 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2552 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 4712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 585 IncrementalHoareTripleChecker+Valid, 4127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:24:05,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2552 Valid, 212 Invalid, 4712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [585 Valid, 4127 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-21 22:24:05,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38390 states. [2024-11-21 22:24:05,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38390 to 21611. [2024-11-21 22:24:05,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21611 states, 21610 states have (on average 1.020916242480333) internal successors, (22062), 21610 states have internal predecessors, (22062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:24:05,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21611 states to 21611 states and 22062 transitions. [2024-11-21 22:24:05,777 INFO L78 Accepts]: Start accepts. Automaton has 21611 states and 22062 transitions. Word has length 1127 [2024-11-21 22:24:05,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:24:05,778 INFO L471 AbstractCegarLoop]: Abstraction has 21611 states and 22062 transitions. [2024-11-21 22:24:05,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 111.72727272727273) internal successors, (1229), 10 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:24:05,778 INFO L276 IsEmpty]: Start isEmpty. Operand 21611 states and 22062 transitions. [2024-11-21 22:24:05,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1200 [2024-11-21 22:24:05,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:24:05,790 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:24:05,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-21 22:24:05,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:24:05,995 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:24:05,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:24:05,996 INFO L85 PathProgramCache]: Analyzing trace with hash -183402330, now seen corresponding path program 1 times [2024-11-21 22:24:05,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:24:05,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452223206] [2024-11-21 22:24:05,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:24:05,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:24:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:24:06,394 INFO L134 CoverageAnalysis]: Checked inductivity of 2195 backedges. 705 proven. 0 refuted. 0 times theorem prover too weak. 1490 trivial. 0 not checked. [2024-11-21 22:24:06,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:24:06,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452223206] [2024-11-21 22:24:06,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452223206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:24:06,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:24:06,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:24:06,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113559196] [2024-11-21 22:24:06,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:24:06,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:24:06,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:24:06,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:24:06,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:24:06,397 INFO L87 Difference]: Start difference. First operand 21611 states and 22062 transitions. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:24:07,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:24:07,129 INFO L93 Difference]: Finished difference Result 34501 states and 35202 transitions. [2024-11-21 22:24:07,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:24:07,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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 1199 [2024-11-21 22:24:07,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:24:07,130 INFO L225 Difference]: With dead ends: 34501 [2024-11-21 22:24:07,130 INFO L226 Difference]: Without dead ends: 0 [2024-11-21 22:24:07,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:24:07,140 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 202 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:24:07,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 104 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-21 22:24:07,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-21 22:24:07,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-21 22:24:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:24:07,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-21 22:24:07,141 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1199 [2024-11-21 22:24:07,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:24:07,141 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-21 22:24:07,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:24:07,142 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-21 22:24:07,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-21 22:24:07,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-21 22:24:07,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-21 22:24:07,146 INFO L407 BasicCegarLoop]: Path program 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] [2024-11-21 22:24:07,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-21 22:24:12,534 WARN L286 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 560 DAG size of output: 668 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-21 22:24:15,312 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-21 22:24:15,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:24:15 BoogieIcfgContainer [2024-11-21 22:24:15,348 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-21 22:24:15,349 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-21 22:24:15,349 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-21 22:24:15,349 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-21 22:24:15,349 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:03" (3/4) ... [2024-11-21 22:24:15,351 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-21 22:24:15,374 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-21 22:24:15,375 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-21 22:24:15,377 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-21 22:24:15,378 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-21 22:24:15,539 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-21 22:24:15,539 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-21 22:24:15,539 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-21 22:24:15,540 INFO L158 Benchmark]: Toolchain (without parser) took 75752.45ms. Allocated memory was 176.2MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 101.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-21 22:24:15,540 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory was 134.2MB in the beginning and 134.1MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 22:24:15,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 774.11ms. Allocated memory is still 176.2MB. Free memory was 101.6MB in the beginning and 79.6MB in the end (delta: 21.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-11-21 22:24:15,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 203.55ms. Allocated memory is still 176.2MB. Free memory was 79.6MB in the beginning and 118.9MB in the end (delta: -39.3MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. [2024-11-21 22:24:15,540 INFO L158 Benchmark]: Boogie Preprocessor took 274.33ms. Allocated memory was 176.2MB in the beginning and 299.9MB in the end (delta: 123.7MB). Free memory was 118.9MB in the beginning and 237.3MB in the end (delta: -118.4MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2024-11-21 22:24:15,541 INFO L158 Benchmark]: RCFGBuilder took 2439.63ms. Allocated memory is still 299.9MB. Free memory was 237.3MB in the beginning and 122.9MB in the end (delta: 114.4MB). Peak memory consumption was 129.3MB. Max. memory is 16.1GB. [2024-11-21 22:24:15,541 INFO L158 Benchmark]: TraceAbstraction took 71859.84ms. Allocated memory was 299.9MB in the beginning and 2.4GB in the end (delta: 2.1GB). Free memory was 121.9MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-11-21 22:24:15,541 INFO L158 Benchmark]: Witness Printer took 190.45ms. Allocated memory is still 2.4GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-21 22:24:15,542 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 176.2MB. Free memory was 134.2MB in the beginning and 134.1MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 774.11ms. Allocated memory is still 176.2MB. Free memory was 101.6MB in the beginning and 79.6MB in the end (delta: 21.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 203.55ms. Allocated memory is still 176.2MB. Free memory was 79.6MB in the beginning and 118.9MB in the end (delta: -39.3MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 274.33ms. Allocated memory was 176.2MB in the beginning and 299.9MB in the end (delta: 123.7MB). Free memory was 118.9MB in the beginning and 237.3MB in the end (delta: -118.4MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2439.63ms. Allocated memory is still 299.9MB. Free memory was 237.3MB in the beginning and 122.9MB in the end (delta: 114.4MB). Peak memory consumption was 129.3MB. Max. memory is 16.1GB. * TraceAbstraction took 71859.84ms. Allocated memory was 299.9MB in the beginning and 2.4GB in the end (delta: 2.1GB). Free memory was 121.9MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 190.45ms. Allocated memory is still 2.4GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. 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: 164]: 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, 424 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 63.6s, OverallIterations: 25, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 34.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12053 SdHoareTripleChecker+Valid, 31.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12053 mSDsluCounter, 8901 SdHoareTripleChecker+Invalid, 26.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1132 mSDsCounter, 4885 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30747 IncrementalHoareTripleChecker+Invalid, 35632 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4885 mSolverCounterUnsat, 7769 mSDtfsCounter, 30747 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6608 GetRequests, 6538 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26111occurred in iteration=19, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.1s AutomataMinimizationTime, 25 MinimizatonAttempts, 53990 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 19.6s InterpolantComputationTime, 19081 NumberOfCodeBlocks, 19081 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 21445 ConstructedInterpolants, 234 QuantifiedInterpolants, 94028 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4896 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 34 InterpolantComputations, 23 PerfectInterpolantSequences, 24528/28297 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: 1776]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((0 <= ((long long) a29 + 15)) && (((long long) 89 + a4) <= 0)) && (((long long) a0 + 61) <= 0)) || ((((0 <= ((long long) 97 + a0)) && (((long long) a4 + 86) <= 0)) && (3 == a2)) && (((long long) a0 + 61) <= 0))) || ((((2 == a2) && (0 <= ((long long) a29 + 15))) && (((long long) 98 + a0) <= 0)) && (0 <= ((long long) 146 + a0)))) || (((((5 == a2) && (0 <= ((long long) 97 + a0))) && (44 <= a29)) && (((long long) a4 + 86) <= 0)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600556))) || ((((0 <= ((long long) 97 + a0)) && (((long long) 89 + a4) <= 0)) && (((long long) a29 + 127) <= 0)) && (((long long) a0 + 61) <= 0))) || (((((2 == a2) && (0 <= ((long long) a29 + 15))) && (((long long) a0 + 147) <= 0)) && ((((((long long) 2 + a0) >= 0) ? (((long long) 2 + a0) % 5) : ((((long long) 2 + a0) % 5) + 5)) != 0) || (0 < (98 + ((((long long) 600067 + a0) >= 0) ? (((long long) 600067 + a0) / 5) : ((((long long) 600067 + a0) / 5) - 1)))))) && (0 <= (98 + ((((long long) 600067 + a0) >= 0) ? (((long long) 600067 + a0) / 5) : ((((long long) 600067 + a0) / 5) - 1)))))) || (((5 == a2) && (((long long) 89 + a4) <= 0)) && (((long long) a0 + 61) <= 0))) || ((((((long long) a0 + 147) <= 0) && ((((((long long) 2 + a0) >= 0) ? (((long long) 2 + a0) % 5) : ((((long long) 2 + a0) % 5) + 5)) != 0) || (0 < (98 + ((((long long) 600067 + a0) >= 0) ? (((long long) 600067 + a0) / 5) : ((((long long) 600067 + a0) / 5) - 1)))))) && (0 <= (98 + ((((long long) 600067 + a0) >= 0) ? (((long long) 600067 + a0) / 5) : ((((long long) 600067 + a0) / 5) - 1))))) && (3 == a2))) || ((((5 == a2) && (0 <= ((long long) a29 + 15))) && (((long long) 98 + a0) <= 0)) && (0 <= ((long long) 146 + a0)))) || (((((long long) 104 + a0) <= 0) && (5 == a2)) && (a29 <= 43))) || (((5 == a2) && (((long long) a0 + 147) <= 0)) && (0 <= ((long long) 600001 + a0)))) || ((((((long long) 89 + a4) <= 0) && (a2 == 1)) && (((long long) a29 + 127) == 0)) && (((long long) 44 + a0) == 0))) || ((((0 <= ((long long) 97 + a0)) && (a2 == 1)) && (a29 <= 43)) && (((long long) a0 + 61) <= 0))) || (((0 <= ((long long) a0 + 599997)) && (2 == a2)) && (((long long) a0 + 147) <= 0))) || ((((((long long) 89 + a4) <= 0) && (3 == a2)) && (((long long) a29 + 127) <= 0)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600556))) || (((((0 <= ((long long) 97 + a0)) && (((long long) 89 + a4) <= 0)) && (a2 == 4)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600556)) && (a29 <= 43))) || (((0 <= ((long long) a0 + 599997)) && (((long long) a0 + 147) <= 0)) && (a2 == 1))) || ((((((0 <= ((long long) 97 + a0)) && (0 <= ((long long) a29 + 15))) && (((long long) a4 + 86) <= 0)) && (a2 == 4)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600556)) && (a29 <= 43))) || (((((0 <= ((long long) 97 + a0)) && (2 == a2)) && (44 <= a29)) && (((long long) a4 + 86) <= 0)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600556))) || ((((44 <= a29) && (((long long) a0 + 147) <= 0)) && (a2 == 1)) && (0 <= ((long long) 600001 + a0)))) || (((((long long) a0 + 99) <= 0) && (0 <= ((long long) 146 + a0))) && (3 == a2))) || (((a2 == 1) && (((long long) a4 + 86) <= 0)) && (((long long) a29 + 144) <= 0))) || ((((long long) 89 + a4) <= 0) && (((long long) a0 + 147) <= 0))) || (((((0 <= ((long long) a0 + 599997)) && (0 <= ((long long) a29 + 15))) && (a2 == 1)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600556)) && (a29 <= 43))) || ((((44 <= a29) && (((long long) 98 + a0) <= 0)) && (a2 == 4)) && (0 <= ((long long) 600001 + a0)))) || (((((0 <= ((long long) 97 + a0)) && (0 <= ((long long) a29 + 15))) && (((long long) a4 + 86) <= 0)) && (3 == a2)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600556))) || (((((5 == a2) && (0 <= ((long long) a29 + 15))) && (((long long) a4 + 86) <= 0)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600556)) && (a29 <= 43))) || (((((long long) 98 + a0) <= 0) && (0 <= ((long long) 146 + a0))) && (a2 == 1))) || (((((long long) 89 + a4) <= 0) && (3 == a2)) && (((long long) a0 + 61) <= 0))) || (((((long long) 89 + a4) <= 0) && (((long long) a0 + 61) <= 0)) && (a2 <= 2))) || (((2 == a2) && (((long long) 89 + a4) <= 0)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600556))) || (((((long long) a0 + 147) <= 0) && (a2 == 4)) && (0 <= ((long long) 600001 + a0)))) || (((((0 <= ((long long) 97 + a0)) && (2 == a2)) && (((long long) a4 + 86) <= 0)) && (((long long) a29 + 127) <= 0)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600556))) RESULT: Ultimate proved your program to be correct! [2024-11-21 22:24:15,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE