./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.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/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.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 17c1b3adab900925d0968acf284c9fae9bc7d0ec39197e53dc7bd6b93c5a8558 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:50:34,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:50:34,226 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:50:34,234 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:50:34,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:50:34,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:50:34,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:50:34,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:50:34,282 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:50:34,282 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:50:34,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:50:34,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:50:34,287 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:50:34,288 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:50:34,288 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:50:34,288 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:50:34,288 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:50:34,289 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:50:34,289 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:50:34,291 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:50:34,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:50:34,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:50:34,294 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:50:34,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:50:34,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:50:34,294 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:50:34,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:50:34,295 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:50:34,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:50:34,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:50:34,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:50:34,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:50:34,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:50:34,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:50:34,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:50:34,296 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:50:34,296 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:50:34,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:50:34,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:50:34,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:50:34,297 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:50:34,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:50:34,303 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17c1b3adab900925d0968acf284c9fae9bc7d0ec39197e53dc7bd6b93c5a8558 [2024-11-22 02:50:34,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:50:34,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:50:34,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:50:34,728 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:50:34,728 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:50:34,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-22 02:50:36,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:50:36,386 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:50:36,386 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-22 02:50:36,396 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d5eff06a/9b0b1549b6f54a26a09eca419f9ff0c0/FLAG5919ebffa [2024-11-22 02:50:36,409 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d5eff06a/9b0b1549b6f54a26a09eca419f9ff0c0 [2024-11-22 02:50:36,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:50:36,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:50:36,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:50:36,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:50:36,423 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:50:36,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e4c508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36, skipping insertion in model container [2024-11-22 02:50:36,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,454 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:50:36,653 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/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[4105,4118] [2024-11-22 02:50:36,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:50:36,689 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:50:36,728 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/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[4105,4118] [2024-11-22 02:50:36,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:50:36,767 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:50:36,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36 WrapperNode [2024-11-22 02:50:36,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:50:36,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:50:36,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:50:36,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:50:36,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,785 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,810 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 290 [2024-11-22 02:50:36,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:50:36,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:50:36,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:50:36,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:50:36,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,828 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,841 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]. [2024-11-22 02:50:36,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,846 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,848 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,853 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:50:36,853 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:50:36,853 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:50:36,854 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:50:36,854 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36" (1/1) ... [2024-11-22 02:50:36,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:50:36,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:50:36,959 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) [2024-11-22 02:50:36,962 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 [2024-11-22 02:50:37,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:50:37,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:50:37,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:50:37,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:50:37,127 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:50:37,128 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:50:37,516 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-22 02:50:37,516 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:50:37,527 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:50:37,528 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 02:50:37,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:50:37 BoogieIcfgContainer [2024-11-22 02:50:37,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:50:37,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:50:37,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:50:37,533 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:50:37,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:50:36" (1/3) ... [2024-11-22 02:50:37,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c714f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:50:37, skipping insertion in model container [2024-11-22 02:50:37,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:50:36" (2/3) ... [2024-11-22 02:50:37,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c714f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:50:37, skipping insertion in model container [2024-11-22 02:50:37,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:50:37" (3/3) ... [2024-11-22 02:50:37,536 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-22 02:50:37,552 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:50:37,552 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:50:37,610 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:50:37,616 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;@38ee6493, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:50:37,616 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:50:37,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 62 states have (on average 1.6935483870967742) internal successors, (105), 63 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-22 02:50:37,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:37,633 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] [2024-11-22 02:50:37,634 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:37,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:37,641 INFO L85 PathProgramCache]: Analyzing trace with hash -976687966, now seen corresponding path program 1 times [2024-11-22 02:50:37,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:37,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868371297] [2024-11-22 02:50:37,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:37,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:37,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:37,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:37,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868371297] [2024-11-22 02:50:37,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868371297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:37,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:37,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:50:37,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239077870] [2024-11-22 02:50:37,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:37,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:50:37,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:37,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:50:37,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:50:37,993 INFO L87 Difference]: Start difference. First operand has 64 states, 62 states have (on average 1.6935483870967742) internal successors, (105), 63 states have internal predecessors, (105), 0 states have call successors, (0), 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 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:38,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:38,038 INFO L93 Difference]: Finished difference Result 146 states and 230 transitions. [2024-11-22 02:50:38,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:50:38,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-22 02:50:38,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:38,048 INFO L225 Difference]: With dead ends: 146 [2024-11-22 02:50:38,048 INFO L226 Difference]: Without dead ends: 95 [2024-11-22 02:50:38,051 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 [2024-11-22 02:50:38,055 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 61 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:38,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 211 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:50:38,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-22 02:50:38,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-11-22 02:50:38,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.4782608695652173) internal successors, (136), 92 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:38,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 136 transitions. [2024-11-22 02:50:38,088 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 136 transitions. Word has length 37 [2024-11-22 02:50:38,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:38,088 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 136 transitions. [2024-11-22 02:50:38,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:38,088 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 136 transitions. [2024-11-22 02:50:38,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 02:50:38,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:38,090 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] [2024-11-22 02:50:38,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:50:38,091 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:38,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:38,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1572742836, now seen corresponding path program 1 times [2024-11-22 02:50:38,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:38,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502991370] [2024-11-22 02:50:38,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:38,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:38,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:38,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:38,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502991370] [2024-11-22 02:50:38,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502991370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:38,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:38,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:50:38,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845178949] [2024-11-22 02:50:38,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:38,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:50:38,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:38,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:50:38,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:50:38,204 INFO L87 Difference]: Start difference. First operand 93 states and 136 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:38,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:38,242 INFO L93 Difference]: Finished difference Result 225 states and 344 transitions. [2024-11-22 02:50:38,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:50:38,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2024-11-22 02:50:38,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:38,246 INFO L225 Difference]: With dead ends: 225 [2024-11-22 02:50:38,246 INFO L226 Difference]: Without dead ends: 151 [2024-11-22 02:50:38,247 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 [2024-11-22 02:50:38,248 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 46 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:38,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 176 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:50:38,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-22 02:50:38,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2024-11-22 02:50:38,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 1.5135135135135136) internal successors, (224), 148 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:38,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 224 transitions. [2024-11-22 02:50:38,269 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 224 transitions. Word has length 38 [2024-11-22 02:50:38,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:38,269 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 224 transitions. [2024-11-22 02:50:38,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:38,270 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 224 transitions. [2024-11-22 02:50:38,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-22 02:50:38,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:38,270 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] [2024-11-22 02:50:38,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:50:38,271 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:38,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:38,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1624580866, now seen corresponding path program 1 times [2024-11-22 02:50:38,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:38,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962591775] [2024-11-22 02:50:38,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:38,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:38,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:38,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:38,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962591775] [2024-11-22 02:50:38,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962591775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:38,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:38,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:50:38,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567362719] [2024-11-22 02:50:38,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:38,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:50:38,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:38,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:50:38,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:50:38,443 INFO L87 Difference]: Start difference. First operand 149 states and 224 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:38,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:38,566 INFO L93 Difference]: Finished difference Result 929 states and 1454 transitions. [2024-11-22 02:50:38,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:50:38,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2024-11-22 02:50:38,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:38,572 INFO L225 Difference]: With dead ends: 929 [2024-11-22 02:50:38,575 INFO L226 Difference]: Without dead ends: 799 [2024-11-22 02:50:38,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:50:38,577 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 410 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:38,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 575 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:50:38,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-22 02:50:38,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 277. [2024-11-22 02:50:38,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 276 states have (on average 1.5217391304347827) internal successors, (420), 276 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:38,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 420 transitions. [2024-11-22 02:50:38,610 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 420 transitions. Word has length 39 [2024-11-22 02:50:38,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:38,611 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 420 transitions. [2024-11-22 02:50:38,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:38,611 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 420 transitions. [2024-11-22 02:50:38,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-22 02:50:38,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:38,612 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] [2024-11-22 02:50:38,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:50:38,613 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:38,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:38,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1224060410, now seen corresponding path program 1 times [2024-11-22 02:50:38,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:38,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485490426] [2024-11-22 02:50:38,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:38,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:38,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:38,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:38,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485490426] [2024-11-22 02:50:38,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485490426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:38,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:38,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:50:38,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477066790] [2024-11-22 02:50:38,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:38,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:50:38,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:38,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:50:38,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:50:38,721 INFO L87 Difference]: Start difference. First operand 277 states and 420 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:38,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:38,752 INFO L93 Difference]: Finished difference Result 749 states and 1146 transitions. [2024-11-22 02:50:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:50:38,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2024-11-22 02:50:38,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:38,754 INFO L225 Difference]: With dead ends: 749 [2024-11-22 02:50:38,754 INFO L226 Difference]: Without dead ends: 491 [2024-11-22 02:50:38,755 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 [2024-11-22 02:50:38,756 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 36 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:38,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 141 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:50:38,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-22 02:50:38,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 481. [2024-11-22 02:50:38,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.4916666666666667) internal successors, (716), 480 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:38,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 716 transitions. [2024-11-22 02:50:38,770 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 716 transitions. Word has length 41 [2024-11-22 02:50:38,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:38,770 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 716 transitions. [2024-11-22 02:50:38,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:38,771 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 716 transitions. [2024-11-22 02:50:38,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-22 02:50:38,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:38,772 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] [2024-11-22 02:50:38,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:50:38,772 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:38,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:38,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1245063065, now seen corresponding path program 1 times [2024-11-22 02:50:38,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:38,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494044450] [2024-11-22 02:50:38,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:38,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:38,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:38,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:38,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494044450] [2024-11-22 02:50:38,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494044450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:38,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:38,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:50:38,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673653779] [2024-11-22 02:50:38,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:38,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:50:38,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:38,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:50:38,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:50:38,961 INFO L87 Difference]: Start difference. First operand 481 states and 716 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:39,022 INFO L93 Difference]: Finished difference Result 945 states and 1414 transitions. [2024-11-22 02:50:39,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:50:39,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2024-11-22 02:50:39,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:39,024 INFO L225 Difference]: With dead ends: 945 [2024-11-22 02:50:39,025 INFO L226 Difference]: Without dead ends: 483 [2024-11-22 02:50:39,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:50:39,026 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 46 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:39,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 266 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:50:39,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-22 02:50:39,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 481. [2024-11-22 02:50:39,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.475) internal successors, (708), 480 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 708 transitions. [2024-11-22 02:50:39,051 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 708 transitions. Word has length 41 [2024-11-22 02:50:39,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:39,051 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 708 transitions. [2024-11-22 02:50:39,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,052 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 708 transitions. [2024-11-22 02:50:39,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-22 02:50:39,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:39,054 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] [2024-11-22 02:50:39,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:50:39,054 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:39,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash -59660072, now seen corresponding path program 1 times [2024-11-22 02:50:39,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:39,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101962326] [2024-11-22 02:50:39,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:39,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:39,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:39,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101962326] [2024-11-22 02:50:39,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101962326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:39,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:39,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:50:39,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453851832] [2024-11-22 02:50:39,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:39,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:50:39,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:39,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:50:39,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:50:39,147 INFO L87 Difference]: Start difference. First operand 481 states and 708 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:39,198 INFO L93 Difference]: Finished difference Result 943 states and 1397 transitions. [2024-11-22 02:50:39,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:50:39,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-11-22 02:50:39,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:39,201 INFO L225 Difference]: With dead ends: 943 [2024-11-22 02:50:39,203 INFO L226 Difference]: Without dead ends: 481 [2024-11-22 02:50:39,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:50:39,204 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 222 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:39,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 56 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:50:39,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-22 02:50:39,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2024-11-22 02:50:39,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.4416666666666667) internal successors, (692), 480 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 692 transitions. [2024-11-22 02:50:39,222 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 692 transitions. Word has length 42 [2024-11-22 02:50:39,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:39,223 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 692 transitions. [2024-11-22 02:50:39,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,223 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 692 transitions. [2024-11-22 02:50:39,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-22 02:50:39,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:39,224 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] [2024-11-22 02:50:39,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:50:39,224 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:39,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:39,225 INFO L85 PathProgramCache]: Analyzing trace with hash 68425235, now seen corresponding path program 1 times [2024-11-22 02:50:39,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:39,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378872331] [2024-11-22 02:50:39,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:39,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:39,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:39,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:39,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378872331] [2024-11-22 02:50:39,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378872331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:39,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:39,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:50:39,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396471203] [2024-11-22 02:50:39,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:39,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:50:39,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:39,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:50:39,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:50:39,343 INFO L87 Difference]: Start difference. First operand 481 states and 692 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:39,401 INFO L93 Difference]: Finished difference Result 943 states and 1365 transitions. [2024-11-22 02:50:39,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:50:39,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-11-22 02:50:39,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:39,404 INFO L225 Difference]: With dead ends: 943 [2024-11-22 02:50:39,404 INFO L226 Difference]: Without dead ends: 481 [2024-11-22 02:50:39,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:50:39,405 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 206 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:39,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 64 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:50:39,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-22 02:50:39,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2024-11-22 02:50:39,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.425) internal successors, (684), 480 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 684 transitions. [2024-11-22 02:50:39,416 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 684 transitions. Word has length 42 [2024-11-22 02:50:39,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:39,416 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 684 transitions. [2024-11-22 02:50:39,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,416 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 684 transitions. [2024-11-22 02:50:39,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-22 02:50:39,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:39,417 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] [2024-11-22 02:50:39,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:50:39,418 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:39,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:39,419 INFO L85 PathProgramCache]: Analyzing trace with hash 933957624, now seen corresponding path program 1 times [2024-11-22 02:50:39,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:39,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744945738] [2024-11-22 02:50:39,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:39,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:39,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:39,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:39,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744945738] [2024-11-22 02:50:39,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744945738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:39,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:39,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:50:39,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657732835] [2024-11-22 02:50:39,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:39,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:50:39,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:39,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:50:39,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:50:39,647 INFO L87 Difference]: Start difference. First operand 481 states and 684 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:39,669 INFO L93 Difference]: Finished difference Result 499 states and 709 transitions. [2024-11-22 02:50:39,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:50:39,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-11-22 02:50:39,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:39,675 INFO L225 Difference]: With dead ends: 499 [2024-11-22 02:50:39,675 INFO L226 Difference]: Without dead ends: 497 [2024-11-22 02:50:39,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:50:39,675 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:39,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 309 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:50:39,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-22 02:50:39,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 497. [2024-11-22 02:50:39,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.403225806451613) internal successors, (696), 496 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 696 transitions. [2024-11-22 02:50:39,696 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 696 transitions. Word has length 42 [2024-11-22 02:50:39,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:39,696 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 696 transitions. [2024-11-22 02:50:39,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,697 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 696 transitions. [2024-11-22 02:50:39,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-22 02:50:39,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:39,697 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] [2024-11-22 02:50:39,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:50:39,698 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:39,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:39,698 INFO L85 PathProgramCache]: Analyzing trace with hash 883353381, now seen corresponding path program 1 times [2024-11-22 02:50:39,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:39,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897493752] [2024-11-22 02:50:39,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:39,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:39,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:39,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:39,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897493752] [2024-11-22 02:50:39,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897493752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:39,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:39,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:50:39,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932969384] [2024-11-22 02:50:39,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:39,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:50:39,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:39,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:50:39,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:50:39,757 INFO L87 Difference]: Start difference. First operand 497 states and 696 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:39,773 INFO L93 Difference]: Finished difference Result 968 states and 1382 transitions. [2024-11-22 02:50:39,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:50:39,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-11-22 02:50:39,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:39,776 INFO L225 Difference]: With dead ends: 968 [2024-11-22 02:50:39,776 INFO L226 Difference]: Without dead ends: 693 [2024-11-22 02:50:39,777 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 [2024-11-22 02:50:39,777 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 51 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:39,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 184 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:50:39,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-22 02:50:39,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 691. [2024-11-22 02:50:39,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 690 states have (on average 1.4057971014492754) internal successors, (970), 690 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 970 transitions. [2024-11-22 02:50:39,788 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 970 transitions. Word has length 42 [2024-11-22 02:50:39,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:39,789 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 970 transitions. [2024-11-22 02:50:39,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,789 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 970 transitions. [2024-11-22 02:50:39,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-22 02:50:39,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:39,790 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:50:39,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:50:39,791 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:39,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:39,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1515661308, now seen corresponding path program 1 times [2024-11-22 02:50:39,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:39,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504147126] [2024-11-22 02:50:39,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:39,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:39,860 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-22 02:50:39,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:39,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504147126] [2024-11-22 02:50:39,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504147126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:39,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:39,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:50:39,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435082461] [2024-11-22 02:50:39,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:39,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:50:39,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:39,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:50:39,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:50:39,862 INFO L87 Difference]: Start difference. First operand 691 states and 970 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:39,915 INFO L93 Difference]: Finished difference Result 2835 states and 4000 transitions. [2024-11-22 02:50:39,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:50:39,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-22 02:50:39,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:39,921 INFO L225 Difference]: With dead ends: 2835 [2024-11-22 02:50:39,921 INFO L226 Difference]: Without dead ends: 2165 [2024-11-22 02:50:39,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:50:39,923 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 225 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:39,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 334 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:50:39,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2024-11-22 02:50:39,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 1359. [2024-11-22 02:50:39,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1358 states have (on average 1.4035346097201766) internal successors, (1906), 1358 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1906 transitions. [2024-11-22 02:50:39,943 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1906 transitions. Word has length 61 [2024-11-22 02:50:39,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:39,943 INFO L471 AbstractCegarLoop]: Abstraction has 1359 states and 1906 transitions. [2024-11-22 02:50:39,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:39,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1906 transitions. [2024-11-22 02:50:39,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-22 02:50:39,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:39,944 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:50:39,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 02:50:39,945 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:39,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:39,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1625359882, now seen corresponding path program 1 times [2024-11-22 02:50:39,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:39,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506581707] [2024-11-22 02:50:39,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:39,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:40,040 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-22 02:50:40,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:40,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506581707] [2024-11-22 02:50:40,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506581707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:40,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:40,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:50:40,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637796944] [2024-11-22 02:50:40,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:40,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:50:40,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:40,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:50:40,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:50:40,042 INFO L87 Difference]: Start difference. First operand 1359 states and 1906 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:40,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:40,090 INFO L93 Difference]: Finished difference Result 3503 states and 4936 transitions. [2024-11-22 02:50:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:50:40,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-22 02:50:40,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:40,096 INFO L225 Difference]: With dead ends: 3503 [2024-11-22 02:50:40,096 INFO L226 Difference]: Without dead ends: 2833 [2024-11-22 02:50:40,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:50:40,098 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 219 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:40,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 366 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:50:40,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2024-11-22 02:50:40,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 2363. [2024-11-22 02:50:40,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2362 states have (on average 1.397121083827265) internal successors, (3300), 2362 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:40,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3300 transitions. [2024-11-22 02:50:40,129 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3300 transitions. Word has length 61 [2024-11-22 02:50:40,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:40,129 INFO L471 AbstractCegarLoop]: Abstraction has 2363 states and 3300 transitions. [2024-11-22 02:50:40,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:40,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3300 transitions. [2024-11-22 02:50:40,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-22 02:50:40,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:40,130 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:50:40,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 02:50:40,131 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:40,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:40,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2114297975, now seen corresponding path program 1 times [2024-11-22 02:50:40,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:40,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965275114] [2024-11-22 02:50:40,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:40,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:40,199 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 02:50:40,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:40,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965275114] [2024-11-22 02:50:40,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965275114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:40,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:40,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:50:40,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773440239] [2024-11-22 02:50:40,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:40,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:50:40,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:40,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:50:40,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:50:40,200 INFO L87 Difference]: Start difference. First operand 2363 states and 3300 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:40,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:40,254 INFO L93 Difference]: Finished difference Result 3763 states and 5320 transitions. [2024-11-22 02:50:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:50:40,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-22 02:50:40,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:40,262 INFO L225 Difference]: With dead ends: 3763 [2024-11-22 02:50:40,262 INFO L226 Difference]: Without dead ends: 3297 [2024-11-22 02:50:40,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:50:40,264 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 211 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:40,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 343 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:50:40,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2024-11-22 02:50:40,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2827. [2024-11-22 02:50:40,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2827 states, 2826 states have (on average 1.402689313517339) internal successors, (3964), 2826 states have internal predecessors, (3964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:40,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 3964 transitions. [2024-11-22 02:50:40,303 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 3964 transitions. Word has length 62 [2024-11-22 02:50:40,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:40,303 INFO L471 AbstractCegarLoop]: Abstraction has 2827 states and 3964 transitions. [2024-11-22 02:50:40,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:40,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 3964 transitions. [2024-11-22 02:50:40,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-22 02:50:40,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:40,304 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:50:40,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 02:50:40,305 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:40,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:40,305 INFO L85 PathProgramCache]: Analyzing trace with hash -344216809, now seen corresponding path program 1 times [2024-11-22 02:50:40,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:40,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059071851] [2024-11-22 02:50:40,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:40,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:40,365 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:40,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:40,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059071851] [2024-11-22 02:50:40,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059071851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:40,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:40,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:50:40,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628366382] [2024-11-22 02:50:40,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:40,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:50:40,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:40,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:50:40,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:50:40,366 INFO L87 Difference]: Start difference. First operand 2827 states and 3964 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:40,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:40,390 INFO L93 Difference]: Finished difference Result 4945 states and 6985 transitions. [2024-11-22 02:50:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:50:40,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-22 02:50:40,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:40,395 INFO L225 Difference]: With dead ends: 4945 [2024-11-22 02:50:40,395 INFO L226 Difference]: Without dead ends: 2139 [2024-11-22 02:50:40,397 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 [2024-11-22 02:50:40,398 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 39 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:40,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 174 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:50:40,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2024-11-22 02:50:40,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2137. [2024-11-22 02:50:40,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2137 states, 2136 states have (on average 1.4063670411985019) internal successors, (3004), 2136 states have internal predecessors, (3004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:40,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 3004 transitions. [2024-11-22 02:50:40,424 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 3004 transitions. Word has length 63 [2024-11-22 02:50:40,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:40,425 INFO L471 AbstractCegarLoop]: Abstraction has 2137 states and 3004 transitions. [2024-11-22 02:50:40,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:40,425 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 3004 transitions. [2024-11-22 02:50:40,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-22 02:50:40,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:40,426 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:50:40,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 02:50:40,426 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:40,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:40,427 INFO L85 PathProgramCache]: Analyzing trace with hash -2058333971, now seen corresponding path program 1 times [2024-11-22 02:50:40,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:40,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005565819] [2024-11-22 02:50:40,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:40,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:40,681 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:40,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:40,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005565819] [2024-11-22 02:50:40,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005565819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:50:40,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617354387] [2024-11-22 02:50:40,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:40,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:50:40,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:50:40,685 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) [2024-11-22 02:50:40,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 02:50:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:40,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 02:50:40,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:50:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:41,148 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:50:41,587 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:41,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617354387] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:50:41,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:50:41,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-22 02:50:41,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417168410] [2024-11-22 02:50:41,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:50:41,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 02:50:41,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:41,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 02:50:41,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2024-11-22 02:50:41,589 INFO L87 Difference]: Start difference. First operand 2137 states and 3004 transitions. Second operand has 25 states, 25 states have (on average 6.48) internal successors, (162), 24 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:44,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:44,402 INFO L93 Difference]: Finished difference Result 17188 states and 24016 transitions. [2024-11-22 02:50:44,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-22 02:50:44,403 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 6.48) internal successors, (162), 24 states have internal predecessors, (162), 0 states have call successors, (0), 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 63 [2024-11-22 02:50:44,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:44,446 INFO L225 Difference]: With dead ends: 17188 [2024-11-22 02:50:44,446 INFO L226 Difference]: Without dead ends: 15086 [2024-11-22 02:50:44,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2506 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1583, Invalid=7537, Unknown=0, NotChecked=0, Total=9120 [2024-11-22 02:50:44,458 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 2812 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2812 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:44,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2812 Valid, 1030 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 02:50:44,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15086 states. [2024-11-22 02:50:44,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15086 to 10642. [2024-11-22 02:50:44,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10642 states, 10641 states have (on average 1.3895310591109857) internal successors, (14786), 10641 states have internal predecessors, (14786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:44,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10642 states to 10642 states and 14786 transitions. [2024-11-22 02:50:44,660 INFO L78 Accepts]: Start accepts. Automaton has 10642 states and 14786 transitions. Word has length 63 [2024-11-22 02:50:44,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:44,660 INFO L471 AbstractCegarLoop]: Abstraction has 10642 states and 14786 transitions. [2024-11-22 02:50:44,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 6.48) internal successors, (162), 24 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:44,661 INFO L276 IsEmpty]: Start isEmpty. Operand 10642 states and 14786 transitions. [2024-11-22 02:50:44,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-22 02:50:44,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:44,662 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:50:44,672 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 02:50:44,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-22 02:50:44,867 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:44,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:44,867 INFO L85 PathProgramCache]: Analyzing trace with hash 2139757523, now seen corresponding path program 1 times [2024-11-22 02:50:44,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:44,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573451737] [2024-11-22 02:50:44,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:44,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:45,081 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:45,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:45,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573451737] [2024-11-22 02:50:45,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573451737] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:50:45,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309013120] [2024-11-22 02:50:45,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:45,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:50:45,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:50:45,084 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) [2024-11-22 02:50:45,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 02:50:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:45,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-22 02:50:45,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:50:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:46,293 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:50:47,335 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:47,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309013120] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:50:47,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:50:47,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 17] total 36 [2024-11-22 02:50:47,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818372932] [2024-11-22 02:50:47,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:50:47,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-22 02:50:47,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:47,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-22 02:50:47,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1030, Unknown=0, NotChecked=0, Total=1260 [2024-11-22 02:50:47,338 INFO L87 Difference]: Start difference. First operand 10642 states and 14786 transitions. Second operand has 36 states, 36 states have (on average 4.861111111111111) internal successors, (175), 36 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:55,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:55,990 INFO L93 Difference]: Finished difference Result 86584 states and 119048 transitions. [2024-11-22 02:50:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2024-11-22 02:50:55,991 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.861111111111111) internal successors, (175), 36 states have internal predecessors, (175), 0 states have call successors, (0), 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 64 [2024-11-22 02:50:55,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:56,341 INFO L225 Difference]: With dead ends: 86584 [2024-11-22 02:50:56,344 INFO L226 Difference]: Without dead ends: 76034 [2024-11-22 02:50:56,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21157 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=8899, Invalid=39281, Unknown=0, NotChecked=0, Total=48180 [2024-11-22 02:50:56,394 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 6423 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 2524 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6423 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:56,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6423 Valid, 1294 Invalid, 2648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 2524 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-22 02:50:56,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76034 states. [2024-11-22 02:50:57,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76034 to 44430. [2024-11-22 02:50:57,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44430 states, 44429 states have (on average 1.3846361610659703) internal successors, (61518), 44429 states have internal predecessors, (61518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:57,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44430 states to 44430 states and 61518 transitions. [2024-11-22 02:50:57,858 INFO L78 Accepts]: Start accepts. Automaton has 44430 states and 61518 transitions. Word has length 64 [2024-11-22 02:50:57,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:57,858 INFO L471 AbstractCegarLoop]: Abstraction has 44430 states and 61518 transitions. [2024-11-22 02:50:57,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.861111111111111) internal successors, (175), 36 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:57,859 INFO L276 IsEmpty]: Start isEmpty. Operand 44430 states and 61518 transitions. [2024-11-22 02:50:57,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 02:50:57,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:57,865 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:50:57,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 02:50:58,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-22 02:50:58,067 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:58,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:58,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1508040122, now seen corresponding path program 1 times [2024-11-22 02:50:58,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:58,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750472300] [2024-11-22 02:50:58,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:58,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:58,138 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:58,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:58,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750472300] [2024-11-22 02:50:58,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750472300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:50:58,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:50:58,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:50:58,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132087075] [2024-11-22 02:50:58,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:50:58,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:50:58,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:50:58,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:50:58,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:50:58,140 INFO L87 Difference]: Start difference. First operand 44430 states and 61518 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:58,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:50:58,245 INFO L93 Difference]: Finished difference Result 69436 states and 96260 transitions. [2024-11-22 02:50:58,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:50:58,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-22 02:50:58,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:50:58,273 INFO L225 Difference]: With dead ends: 69436 [2024-11-22 02:50:58,273 INFO L226 Difference]: Without dead ends: 25154 [2024-11-22 02:50:58,303 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 [2024-11-22 02:50:58,304 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 30 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:50:58,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 159 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:50:58,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25154 states. [2024-11-22 02:50:58,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25154 to 25152. [2024-11-22 02:50:58,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25152 states, 25151 states have (on average 1.3616953600254462) internal successors, (34248), 25151 states have internal predecessors, (34248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:58,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25152 states to 25152 states and 34248 transitions. [2024-11-22 02:50:58,895 INFO L78 Accepts]: Start accepts. Automaton has 25152 states and 34248 transitions. Word has length 65 [2024-11-22 02:50:58,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:50:58,899 INFO L471 AbstractCegarLoop]: Abstraction has 25152 states and 34248 transitions. [2024-11-22 02:50:58,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:50:58,900 INFO L276 IsEmpty]: Start isEmpty. Operand 25152 states and 34248 transitions. [2024-11-22 02:50:58,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 02:50:58,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:50:58,901 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:50:58,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 02:50:58,901 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:50:58,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:50:58,902 INFO L85 PathProgramCache]: Analyzing trace with hash 76199226, now seen corresponding path program 1 times [2024-11-22 02:50:58,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:50:58,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990211550] [2024-11-22 02:50:58,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:58,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:50:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:59,804 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:50:59,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:50:59,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990211550] [2024-11-22 02:50:59,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990211550] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:50:59,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656205647] [2024-11-22 02:50:59,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:50:59,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:50:59,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:50:59,807 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) [2024-11-22 02:50:59,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 02:50:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:50:59,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-22 02:50:59,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:51:00,869 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:00,870 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:51:01,798 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:01,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656205647] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:51:01,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:51:01,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 17] total 43 [2024-11-22 02:51:01,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105001270] [2024-11-22 02:51:01,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:51:01,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-22 02:51:01,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:51:01,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-22 02:51:01,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1624, Unknown=0, NotChecked=0, Total=1806 [2024-11-22 02:51:01,800 INFO L87 Difference]: Start difference. First operand 25152 states and 34248 transitions. Second operand has 43 states, 43 states have (on average 4.209302325581396) internal successors, (181), 43 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:13,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:51:13,731 INFO L93 Difference]: Finished difference Result 62532 states and 85111 transitions. [2024-11-22 02:51:13,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2024-11-22 02:51:13,732 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 4.209302325581396) internal successors, (181), 43 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-22 02:51:13,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:51:13,778 INFO L225 Difference]: With dead ends: 62532 [2024-11-22 02:51:13,778 INFO L226 Difference]: Without dead ends: 45862 [2024-11-22 02:51:13,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18032 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=6503, Invalid=43897, Unknown=0, NotChecked=0, Total=50400 [2024-11-22 02:51:13,798 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 5061 mSDsluCounter, 4413 mSDsCounter, 0 mSdLazyCounter, 3154 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5061 SdHoareTripleChecker+Valid, 4625 SdHoareTripleChecker+Invalid, 3195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 3154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-22 02:51:13,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5061 Valid, 4625 Invalid, 3195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 3154 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-22 02:51:13,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45862 states. [2024-11-22 02:51:14,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45862 to 29070. [2024-11-22 02:51:14,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29070 states, 29069 states have (on average 1.3644432213010425) internal successors, (39663), 29069 states have internal predecessors, (39663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:14,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29070 states to 29070 states and 39663 transitions. [2024-11-22 02:51:14,284 INFO L78 Accepts]: Start accepts. Automaton has 29070 states and 39663 transitions. Word has length 65 [2024-11-22 02:51:14,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:51:14,284 INFO L471 AbstractCegarLoop]: Abstraction has 29070 states and 39663 transitions. [2024-11-22 02:51:14,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 4.209302325581396) internal successors, (181), 43 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:14,284 INFO L276 IsEmpty]: Start isEmpty. Operand 29070 states and 39663 transitions. [2024-11-22 02:51:14,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 02:51:14,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:51:14,286 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:51:14,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 02:51:14,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:51:14,487 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:51:14,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:51:14,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1000094856, now seen corresponding path program 1 times [2024-11-22 02:51:14,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:51:14,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060875066] [2024-11-22 02:51:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:14,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:51:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:14,538 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:14,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:51:14,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060875066] [2024-11-22 02:51:14,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060875066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:51:14,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:51:14,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:51:14,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981465916] [2024-11-22 02:51:14,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:51:14,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:51:14,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:51:14,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:51:14,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:51:14,540 INFO L87 Difference]: Start difference. First operand 29070 states and 39663 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:14,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:51:14,613 INFO L93 Difference]: Finished difference Result 47050 states and 64097 transitions. [2024-11-22 02:51:14,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:51:14,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-22 02:51:14,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:51:14,631 INFO L225 Difference]: With dead ends: 47050 [2024-11-22 02:51:14,631 INFO L226 Difference]: Without dead ends: 18128 [2024-11-22 02:51:14,647 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 [2024-11-22 02:51:14,648 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 24 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:51:14,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 144 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:51:14,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18128 states. [2024-11-22 02:51:14,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18128 to 18126. [2024-11-22 02:51:14,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18126 states, 18125 states have (on average 1.3390344827586207) internal successors, (24270), 18125 states have internal predecessors, (24270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:14,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18126 states to 18126 states and 24270 transitions. [2024-11-22 02:51:14,790 INFO L78 Accepts]: Start accepts. Automaton has 18126 states and 24270 transitions. Word has length 66 [2024-11-22 02:51:14,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:51:14,790 INFO L471 AbstractCegarLoop]: Abstraction has 18126 states and 24270 transitions. [2024-11-22 02:51:14,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:14,790 INFO L276 IsEmpty]: Start isEmpty. Operand 18126 states and 24270 transitions. [2024-11-22 02:51:14,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 02:51:14,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:51:14,792 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:51:14,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 02:51:14,792 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:51:14,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:51:14,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1535675016, now seen corresponding path program 1 times [2024-11-22 02:51:14,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:51:14,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146892715] [2024-11-22 02:51:14,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:14,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:51:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:14,866 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 02:51:14,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:51:14,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146892715] [2024-11-22 02:51:14,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146892715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:51:14,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201749009] [2024-11-22 02:51:14,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:14,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:51:14,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:51:14,869 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) [2024-11-22 02:51:14,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 02:51:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:14,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-22 02:51:14,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:51:15,074 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:15,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:51:15,221 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:15,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201749009] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:51:15,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:51:15,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 11 [2024-11-22 02:51:15,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427228307] [2024-11-22 02:51:15,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:51:15,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 02:51:15,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:51:15,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 02:51:15,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-22 02:51:15,223 INFO L87 Difference]: Start difference. First operand 18126 states and 24270 transitions. Second operand has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 11 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:15,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:51:15,625 INFO L93 Difference]: Finished difference Result 70427 states and 93758 transitions. [2024-11-22 02:51:15,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 02:51:15,625 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 11 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-22 02:51:15,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:51:15,681 INFO L225 Difference]: With dead ends: 70427 [2024-11-22 02:51:15,681 INFO L226 Difference]: Without dead ends: 51769 [2024-11-22 02:51:15,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-22 02:51:15,700 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 297 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:51:15,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 766 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:51:15,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51769 states. [2024-11-22 02:51:16,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51769 to 51277. [2024-11-22 02:51:16,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51277 states, 51276 states have (on average 1.290525782042281) internal successors, (66173), 51276 states have internal predecessors, (66173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:16,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51277 states to 51277 states and 66173 transitions. [2024-11-22 02:51:16,706 INFO L78 Accepts]: Start accepts. Automaton has 51277 states and 66173 transitions. Word has length 66 [2024-11-22 02:51:16,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:51:16,706 INFO L471 AbstractCegarLoop]: Abstraction has 51277 states and 66173 transitions. [2024-11-22 02:51:16,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 11 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:16,706 INFO L276 IsEmpty]: Start isEmpty. Operand 51277 states and 66173 transitions. [2024-11-22 02:51:16,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 02:51:16,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:51:16,712 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:51:16,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 02:51:16,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:51:16,913 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:51:16,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:51:16,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1707252983, now seen corresponding path program 1 times [2024-11-22 02:51:16,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:51:16,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664907013] [2024-11-22 02:51:16,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:16,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:51:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:16,941 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 02:51:16,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:51:16,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664907013] [2024-11-22 02:51:16,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664907013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:51:16,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:51:16,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:51:16,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866611085] [2024-11-22 02:51:16,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:51:16,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:51:16,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:51:16,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:51:16,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:51:16,944 INFO L87 Difference]: Start difference. First operand 51277 states and 66173 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:17,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:51:17,216 INFO L93 Difference]: Finished difference Result 81977 states and 105738 transitions. [2024-11-22 02:51:17,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:51:17,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 66 [2024-11-22 02:51:17,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:51:17,244 INFO L225 Difference]: With dead ends: 81977 [2024-11-22 02:51:17,244 INFO L226 Difference]: Without dead ends: 31685 [2024-11-22 02:51:17,272 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 [2024-11-22 02:51:17,273 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 45 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:51:17,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 85 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:51:17,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31685 states. [2024-11-22 02:51:17,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31685 to 31685. [2024-11-22 02:51:17,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31685 states, 31684 states have (on average 1.265907082439086) internal successors, (40109), 31684 states have internal predecessors, (40109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:17,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31685 states to 31685 states and 40109 transitions. [2024-11-22 02:51:17,661 INFO L78 Accepts]: Start accepts. Automaton has 31685 states and 40109 transitions. Word has length 66 [2024-11-22 02:51:17,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:51:17,661 INFO L471 AbstractCegarLoop]: Abstraction has 31685 states and 40109 transitions. [2024-11-22 02:51:17,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:17,662 INFO L276 IsEmpty]: Start isEmpty. Operand 31685 states and 40109 transitions. [2024-11-22 02:51:17,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 02:51:17,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:51:17,663 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:51:17,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 02:51:17,663 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:51:17,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:51:17,664 INFO L85 PathProgramCache]: Analyzing trace with hash 142443222, now seen corresponding path program 1 times [2024-11-22 02:51:17,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:51:17,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648033500] [2024-11-22 02:51:17,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:17,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:51:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:17,702 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 02:51:17,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:51:17,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648033500] [2024-11-22 02:51:17,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648033500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:51:17,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:51:17,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:51:17,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412568438] [2024-11-22 02:51:17,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:51:17,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:51:17,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:51:17,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:51:17,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:51:17,704 INFO L87 Difference]: Start difference. First operand 31685 states and 40109 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:17,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:51:17,810 INFO L93 Difference]: Finished difference Result 53012 states and 66943 transitions. [2024-11-22 02:51:17,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:51:17,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 67 [2024-11-22 02:51:17,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:51:17,830 INFO L225 Difference]: With dead ends: 53012 [2024-11-22 02:51:17,830 INFO L226 Difference]: Without dead ends: 21401 [2024-11-22 02:51:17,850 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 [2024-11-22 02:51:17,851 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 46 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:51:17,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 76 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:51:17,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21401 states. [2024-11-22 02:51:18,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21401 to 21401. [2024-11-22 02:51:18,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21401 states, 21400 states have (on average 1.2339719626168224) internal successors, (26407), 21400 states have internal predecessors, (26407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:18,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21401 states to 21401 states and 26407 transitions. [2024-11-22 02:51:18,172 INFO L78 Accepts]: Start accepts. Automaton has 21401 states and 26407 transitions. Word has length 67 [2024-11-22 02:51:18,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:51:18,172 INFO L471 AbstractCegarLoop]: Abstraction has 21401 states and 26407 transitions. [2024-11-22 02:51:18,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:18,172 INFO L276 IsEmpty]: Start isEmpty. Operand 21401 states and 26407 transitions. [2024-11-22 02:51:18,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 02:51:18,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:51:18,173 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:51:18,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 02:51:18,173 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:51:18,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:51:18,173 INFO L85 PathProgramCache]: Analyzing trace with hash 404521601, now seen corresponding path program 1 times [2024-11-22 02:51:18,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:51:18,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370077758] [2024-11-22 02:51:18,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:18,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:51:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:18,195 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 02:51:18,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:51:18,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370077758] [2024-11-22 02:51:18,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370077758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:51:18,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:51:18,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:51:18,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836533722] [2024-11-22 02:51:18,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:51:18,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:51:18,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:51:18,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:51:18,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:51:18,196 INFO L87 Difference]: Start difference. First operand 21401 states and 26407 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:18,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:51:18,303 INFO L93 Difference]: Finished difference Result 32818 states and 40597 transitions. [2024-11-22 02:51:18,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:51:18,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-22 02:51:18,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:51:18,312 INFO L225 Difference]: With dead ends: 32818 [2024-11-22 02:51:18,313 INFO L226 Difference]: Without dead ends: 11604 [2024-11-22 02:51:18,321 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 [2024-11-22 02:51:18,322 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 44 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:51:18,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 88 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:51:18,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11604 states. [2024-11-22 02:51:18,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11604 to 11604. [2024-11-22 02:51:18,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11604 states, 11603 states have (on average 1.219426010514522) internal successors, (14149), 11603 states have internal predecessors, (14149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:18,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11604 states to 11604 states and 14149 transitions. [2024-11-22 02:51:18,515 INFO L78 Accepts]: Start accepts. Automaton has 11604 states and 14149 transitions. Word has length 67 [2024-11-22 02:51:18,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:51:18,515 INFO L471 AbstractCegarLoop]: Abstraction has 11604 states and 14149 transitions. [2024-11-22 02:51:18,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:18,516 INFO L276 IsEmpty]: Start isEmpty. Operand 11604 states and 14149 transitions. [2024-11-22 02:51:18,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-22 02:51:18,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:51:18,521 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:51:18,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 02:51:18,521 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:51:18,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:51:18,522 INFO L85 PathProgramCache]: Analyzing trace with hash -539067345, now seen corresponding path program 1 times [2024-11-22 02:51:18,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:51:18,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402073013] [2024-11-22 02:51:18,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:18,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:51:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 28 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:19,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:51:19,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402073013] [2024-11-22 02:51:19,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402073013] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:51:19,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202670320] [2024-11-22 02:51:19,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:19,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:51:19,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:51:19,381 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) [2024-11-22 02:51:19,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 02:51:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:19,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-22 02:51:19,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:51:20,096 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 30 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:20,096 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:51:21,272 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 28 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:21,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202670320] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:51:21,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:51:21,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 11] total 31 [2024-11-22 02:51:21,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719183262] [2024-11-22 02:51:21,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:51:21,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-22 02:51:21,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:51:21,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-22 02:51:21,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=877, Unknown=0, NotChecked=0, Total=992 [2024-11-22 02:51:21,274 INFO L87 Difference]: Start difference. First operand 11604 states and 14149 transitions. Second operand has 32 states, 32 states have (on average 8.25) internal successors, (264), 31 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:23,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:51:23,798 INFO L93 Difference]: Finished difference Result 21553 states and 26658 transitions. [2024-11-22 02:51:23,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-22 02:51:23,799 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.25) internal successors, (264), 31 states have internal predecessors, (264), 0 states have call successors, (0), 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 110 [2024-11-22 02:51:23,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:51:23,811 INFO L225 Difference]: With dead ends: 21553 [2024-11-22 02:51:23,812 INFO L226 Difference]: Without dead ends: 15758 [2024-11-22 02:51:23,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1680 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1252, Invalid=5888, Unknown=0, NotChecked=0, Total=7140 [2024-11-22 02:51:23,818 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 2109 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 02:51:23,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2109 Valid, 1436 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 02:51:23,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15758 states. [2024-11-22 02:51:23,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15758 to 6825. [2024-11-22 02:51:23,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6825 states, 6824 states have (on average 1.2121922626025792) internal successors, (8272), 6824 states have internal predecessors, (8272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:23,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6825 states to 6825 states and 8272 transitions. [2024-11-22 02:51:23,897 INFO L78 Accepts]: Start accepts. Automaton has 6825 states and 8272 transitions. Word has length 110 [2024-11-22 02:51:23,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:51:23,897 INFO L471 AbstractCegarLoop]: Abstraction has 6825 states and 8272 transitions. [2024-11-22 02:51:23,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.25) internal successors, (264), 31 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:23,898 INFO L276 IsEmpty]: Start isEmpty. Operand 6825 states and 8272 transitions. [2024-11-22 02:51:23,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-22 02:51:23,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:51:23,899 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:51:23,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 02:51:24,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-22 02:51:24,101 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:51:24,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:51:24,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1785934306, now seen corresponding path program 1 times [2024-11-22 02:51:24,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:51:24,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661692310] [2024-11-22 02:51:24,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:24,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:51:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:24,513 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 31 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:24,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:51:24,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661692310] [2024-11-22 02:51:24,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661692310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:51:24,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629819569] [2024-11-22 02:51:24,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:24,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:51:24,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:51:24,520 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) [2024-11-22 02:51:24,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 02:51:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:24,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-22 02:51:24,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:51:25,097 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 35 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:25,098 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:51:26,061 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 31 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:26,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629819569] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:51:26,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:51:26,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2024-11-22 02:51:26,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911808244] [2024-11-22 02:51:26,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:51:26,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-22 02:51:26,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:51:26,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-22 02:51:26,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2024-11-22 02:51:26,063 INFO L87 Difference]: Start difference. First operand 6825 states and 8272 transitions. Second operand has 26 states, 26 states have (on average 9.73076923076923) internal successors, (253), 25 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:26,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:51:26,430 INFO L93 Difference]: Finished difference Result 10800 states and 13198 transitions. [2024-11-22 02:51:26,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 02:51:26,431 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.73076923076923) internal successors, (253), 25 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-22 02:51:26,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:51:26,435 INFO L225 Difference]: With dead ends: 10800 [2024-11-22 02:51:26,435 INFO L226 Difference]: Without dead ends: 6742 [2024-11-22 02:51:26,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=281, Invalid=1125, Unknown=0, NotChecked=0, Total=1406 [2024-11-22 02:51:26,438 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 388 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:51:26,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 679 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:51:26,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6742 states. [2024-11-22 02:51:26,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6742 to 6738. [2024-11-22 02:51:26,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6738 states, 6737 states have (on average 1.1932610954430756) internal successors, (8039), 6737 states have internal predecessors, (8039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:26,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6738 states to 6738 states and 8039 transitions. [2024-11-22 02:51:26,477 INFO L78 Accepts]: Start accepts. Automaton has 6738 states and 8039 transitions. Word has length 110 [2024-11-22 02:51:26,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:51:26,478 INFO L471 AbstractCegarLoop]: Abstraction has 6738 states and 8039 transitions. [2024-11-22 02:51:26,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.73076923076923) internal successors, (253), 25 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:26,478 INFO L276 IsEmpty]: Start isEmpty. Operand 6738 states and 8039 transitions. [2024-11-22 02:51:26,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 02:51:26,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:51:26,479 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:51:26,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 02:51:26,683 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 [2024-11-22 02:51:26,683 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:51:26,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:51:26,684 INFO L85 PathProgramCache]: Analyzing trace with hash -590516994, now seen corresponding path program 1 times [2024-11-22 02:51:26,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:51:26,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598217916] [2024-11-22 02:51:26,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:26,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:51:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:27,657 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 13 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:27,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:51:27,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598217916] [2024-11-22 02:51:27,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598217916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:51:27,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967372352] [2024-11-22 02:51:27,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:27,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:51:27,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:51:27,662 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:51:27,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 02:51:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:27,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-22 02:51:27,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:51:29,428 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 13 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:29,428 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:51:31,497 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 13 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:31,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967372352] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:51:31,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:51:31,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 18, 18] total 55 [2024-11-22 02:51:31,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318829923] [2024-11-22 02:51:31,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:51:31,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-22 02:51:31,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:51:31,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-22 02:51:31,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=2789, Unknown=0, NotChecked=0, Total=2970 [2024-11-22 02:51:31,502 INFO L87 Difference]: Start difference. First operand 6738 states and 8039 transitions. Second operand has 55 states, 55 states have (on average 5.745454545454545) internal successors, (316), 55 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:41,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:51:41,787 INFO L93 Difference]: Finished difference Result 21051 states and 25484 transitions. [2024-11-22 02:51:41,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2024-11-22 02:51:41,788 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 5.745454545454545) internal successors, (316), 55 states have internal predecessors, (316), 0 states have call successors, (0), 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 111 [2024-11-22 02:51:41,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:51:41,803 INFO L225 Difference]: With dead ends: 21051 [2024-11-22 02:51:41,804 INFO L226 Difference]: Without dead ends: 18064 [2024-11-22 02:51:41,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8346 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=2946, Invalid=29274, Unknown=0, NotChecked=0, Total=32220 [2024-11-22 02:51:41,811 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 2020 mSDsluCounter, 9872 mSDsCounter, 0 mSdLazyCounter, 5904 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 10171 SdHoareTripleChecker+Invalid, 5939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 5904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:51:41,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2020 Valid, 10171 Invalid, 5939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 5904 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-22 02:51:41,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18064 states. [2024-11-22 02:51:41,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18064 to 13982. [2024-11-22 02:51:41,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13982 states, 13981 states have (on average 1.2007009512910378) internal successors, (16787), 13981 states have internal predecessors, (16787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:41,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13982 states to 13982 states and 16787 transitions. [2024-11-22 02:51:41,935 INFO L78 Accepts]: Start accepts. Automaton has 13982 states and 16787 transitions. Word has length 111 [2024-11-22 02:51:41,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:51:41,936 INFO L471 AbstractCegarLoop]: Abstraction has 13982 states and 16787 transitions. [2024-11-22 02:51:41,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 5.745454545454545) internal successors, (316), 55 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:51:41,936 INFO L276 IsEmpty]: Start isEmpty. Operand 13982 states and 16787 transitions. [2024-11-22 02:51:41,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 02:51:41,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:51:41,937 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:51:41,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-22 02:51:42,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:51:42,142 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:51:42,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:51:42,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1181769735, now seen corresponding path program 1 times [2024-11-22 02:51:42,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:51:42,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447191056] [2024-11-22 02:51:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:42,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:51:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:42,972 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 32 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:42,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:51:42,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447191056] [2024-11-22 02:51:42,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447191056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:51:42,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905908095] [2024-11-22 02:51:42,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:51:42,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:51:42,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:51:42,979 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:51:42,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 02:51:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:51:43,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-22 02:51:43,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:51:45,529 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 36 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:45,530 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:51:47,274 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 32 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:51:47,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905908095] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:51:47,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:51:47,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23, 21] total 61 [2024-11-22 02:51:47,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412147277] [2024-11-22 02:51:47,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:51:47,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-22 02:51:47,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:51:47,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-22 02:51:47,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=3332, Unknown=0, NotChecked=0, Total=3660 [2024-11-22 02:51:47,277 INFO L87 Difference]: Start difference. First operand 13982 states and 16787 transitions. Second operand has 61 states, 61 states have (on average 4.901639344262295) internal successors, (299), 61 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:52:01,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:52:01,677 INFO L93 Difference]: Finished difference Result 38808 states and 46915 transitions. [2024-11-22 02:52:01,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2024-11-22 02:52:01,677 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 4.901639344262295) internal successors, (299), 61 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-11-22 02:52:01,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:52:01,710 INFO L225 Difference]: With dead ends: 38808 [2024-11-22 02:52:01,711 INFO L226 Difference]: Without dead ends: 34287 [2024-11-22 02:52:01,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15371 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=5961, Invalid=44439, Unknown=0, NotChecked=0, Total=50400 [2024-11-22 02:52:01,729 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 1953 mSDsluCounter, 5427 mSDsCounter, 0 mSdLazyCounter, 2841 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 5611 SdHoareTripleChecker+Invalid, 2879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:52:01,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 5611 Invalid, 2879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2841 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 02:52:01,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34287 states. [2024-11-22 02:52:02,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34287 to 24593. [2024-11-22 02:52:02,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24593 states, 24592 states have (on average 1.205757970071568) internal successors, (29652), 24592 states have internal predecessors, (29652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:52:02,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24593 states to 24593 states and 29652 transitions. [2024-11-22 02:52:02,085 INFO L78 Accepts]: Start accepts. Automaton has 24593 states and 29652 transitions. Word has length 112 [2024-11-22 02:52:02,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:52:02,085 INFO L471 AbstractCegarLoop]: Abstraction has 24593 states and 29652 transitions. [2024-11-22 02:52:02,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 4.901639344262295) internal successors, (299), 61 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:52:02,086 INFO L276 IsEmpty]: Start isEmpty. Operand 24593 states and 29652 transitions. [2024-11-22 02:52:02,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 02:52:02,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:52:02,088 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:52:02,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 02:52:02,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-22 02:52:02,292 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:52:02,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:52:02,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1237323942, now seen corresponding path program 1 times [2024-11-22 02:52:02,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:52:02,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083308879] [2024-11-22 02:52:02,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:52:02,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:52:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:52:03,601 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 13 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:52:03,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:52:03,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083308879] [2024-11-22 02:52:03,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083308879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:52:03,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838223121] [2024-11-22 02:52:03,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:52:03,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:52:03,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:52:03,608 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:52:03,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 02:52:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:52:03,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-22 02:52:03,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:52:05,578 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 13 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:52:05,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:52:07,514 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 13 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:52:07,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838223121] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:52:07,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:52:07,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 60 [2024-11-22 02:52:07,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521163284] [2024-11-22 02:52:07,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:52:07,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-22 02:52:07,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:52:07,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-22 02:52:07,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=3246, Unknown=0, NotChecked=0, Total=3540 [2024-11-22 02:52:07,516 INFO L87 Difference]: Start difference. First operand 24593 states and 29652 transitions. Second operand has 60 states, 60 states have (on average 5.316666666666666) internal successors, (319), 60 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)