./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-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 c39b660f273ecbdfa60a013e46dad0637949d26902d1f41ae3834ad8e3310564 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:48:46,747 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:48:46,801 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:48:46,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:48:46,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:48:46,825 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:48:46,826 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:48:46,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:48:46,827 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:48:46,829 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:48:46,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:48:46,830 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:48:46,831 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:48:46,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:48:46,831 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:48:46,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:48:46,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:48:46,835 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:48:46,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:48:46,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:48:46,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:48:46,836 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:48:46,836 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:48:46,837 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:48:46,837 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:48:46,837 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:48:46,837 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:48:46,838 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:48:46,838 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:48:46,838 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:48:46,838 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:48:46,839 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:48:46,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:48:46,843 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:48:46,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:48:46,845 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:48:46,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:48:46,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:48:46,845 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:48:46,846 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:48:46,846 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:48:46,846 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:48:46,846 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c39b660f273ecbdfa60a013e46dad0637949d26902d1f41ae3834ad8e3310564 [2024-10-14 03:48:47,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:48:47,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:48:47,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:48:47,119 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:48:47,120 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:48:47,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-10-14 03:48:48,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:48:48,808 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:48:48,809 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-10-14 03:48:48,821 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e283b5aa9/87a6b9f23d884427a4a363cf69a64785/FLAG80dab4432 [2024-10-14 03:48:48,832 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e283b5aa9/87a6b9f23d884427a4a363cf69a64785 [2024-10-14 03:48:48,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:48:48,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:48:48,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:48:48,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:48:48,842 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:48:48,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:48:48" (1/1) ... [2024-10-14 03:48:48,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3158a813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:48, skipping insertion in model container [2024-10-14 03:48:48,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:48:48" (1/1) ... [2024-10-14 03:48:48,889 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:48:49,149 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7469,7482] [2024-10-14 03:48:49,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:48:49,222 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:48:49,267 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7469,7482] [2024-10-14 03:48:49,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:48:49,320 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:48:49,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49 WrapperNode [2024-10-14 03:48:49,321 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:48:49,322 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:48:49,322 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:48:49,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:48:49,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49" (1/1) ... [2024-10-14 03:48:49,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49" (1/1) ... [2024-10-14 03:48:49,413 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 665 [2024-10-14 03:48:49,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:48:49,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:48:49,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:48:49,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:48:49,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49" (1/1) ... [2024-10-14 03:48:49,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49" (1/1) ... [2024-10-14 03:48:49,453 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49" (1/1) ... [2024-10-14 03:48:49,476 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 03:48:49,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49" (1/1) ... [2024-10-14 03:48:49,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49" (1/1) ... [2024-10-14 03:48:49,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49" (1/1) ... [2024-10-14 03:48:49,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49" (1/1) ... [2024-10-14 03:48:49,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49" (1/1) ... [2024-10-14 03:48:49,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49" (1/1) ... [2024-10-14 03:48:49,504 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:48:49,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:48:49,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:48:49,513 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:48:49,514 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49" (1/1) ... [2024-10-14 03:48:49,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:48:49,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:48:49,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 03:48:49,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 03:48:49,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:48:49,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:48:49,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:48:49,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:48:49,750 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:48:49,751 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:48:50,339 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-10-14 03:48:50,339 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:48:50,389 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:48:50,389 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 03:48:50,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:48:50 BoogieIcfgContainer [2024-10-14 03:48:50,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:48:50,392 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:48:50,392 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:48:50,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:48:50,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:48:48" (1/3) ... [2024-10-14 03:48:50,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4365238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:48:50, skipping insertion in model container [2024-10-14 03:48:50,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:49" (2/3) ... [2024-10-14 03:48:50,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4365238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:48:50, skipping insertion in model container [2024-10-14 03:48:50,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:48:50" (3/3) ... [2024-10-14 03:48:50,398 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-10-14 03:48:50,415 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:48:50,415 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:48:50,494 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:48:50,500 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;@3c5543d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:48:50,500 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:48:50,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 158 states have (on average 1.7151898734177216) internal successors, (271), 159 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:50,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-14 03:48:50,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:50,516 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:50,516 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:50,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:50,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1160311881, now seen corresponding path program 1 times [2024-10-14 03:48:50,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:50,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119538254] [2024-10-14 03:48:50,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:50,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:51,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:51,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:51,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119538254] [2024-10-14 03:48:51,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119538254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:51,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:51,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:48:51,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000977816] [2024-10-14 03:48:51,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:51,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:48:51,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:51,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:48:51,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:48:51,239 INFO L87 Difference]: Start difference. First operand has 160 states, 158 states have (on average 1.7151898734177216) internal successors, (271), 159 states have internal predecessors, (271), 0 states have call successors, (0), 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 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:51,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:51,471 INFO L93 Difference]: Finished difference Result 511 states and 830 transitions. [2024-10-14 03:48:51,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:48:51,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-10-14 03:48:51,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:51,490 INFO L225 Difference]: With dead ends: 511 [2024-10-14 03:48:51,490 INFO L226 Difference]: Without dead ends: 437 [2024-10-14 03:48:51,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:48:51,498 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 910 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:51,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 1266 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:48:51,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-10-14 03:48:51,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 255. [2024-10-14 03:48:51,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 254 states have (on average 1.5) internal successors, (381), 254 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:51,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 381 transitions. [2024-10-14 03:48:51,559 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 381 transitions. Word has length 49 [2024-10-14 03:48:51,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:51,560 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 381 transitions. [2024-10-14 03:48:51,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:51,560 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 381 transitions. [2024-10-14 03:48:51,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-14 03:48:51,562 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:51,562 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:51,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:48:51,563 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:51,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:51,563 INFO L85 PathProgramCache]: Analyzing trace with hash 966264476, now seen corresponding path program 1 times [2024-10-14 03:48:51,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:51,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388584061] [2024-10-14 03:48:51,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:51,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:51,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:51,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388584061] [2024-10-14 03:48:51,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388584061] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:51,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:51,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:48:51,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517924679] [2024-10-14 03:48:51,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:51,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:48:51,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:51,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:48:51,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:48:51,659 INFO L87 Difference]: Start difference. First operand 255 states and 381 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:51,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:51,697 INFO L93 Difference]: Finished difference Result 627 states and 953 transitions. [2024-10-14 03:48:51,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:48:51,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-10-14 03:48:51,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:51,701 INFO L225 Difference]: With dead ends: 627 [2024-10-14 03:48:51,701 INFO L226 Difference]: Without dead ends: 429 [2024-10-14 03:48:51,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:48:51,703 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:51,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 418 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:48:51,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-10-14 03:48:51,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 427. [2024-10-14 03:48:51,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 1.4859154929577465) internal successors, (633), 426 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:51,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 633 transitions. [2024-10-14 03:48:51,740 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 633 transitions. Word has length 52 [2024-10-14 03:48:51,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:51,740 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 633 transitions. [2024-10-14 03:48:51,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:51,741 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 633 transitions. [2024-10-14 03:48:51,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-14 03:48:51,744 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:51,745 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:51,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:48:51,745 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:51,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:51,747 INFO L85 PathProgramCache]: Analyzing trace with hash 992810235, now seen corresponding path program 1 times [2024-10-14 03:48:51,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:51,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421320891] [2024-10-14 03:48:51,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:51,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:51,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:51,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421320891] [2024-10-14 03:48:51,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421320891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:51,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:51,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:48:51,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651888935] [2024-10-14 03:48:51,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:51,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:48:51,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:51,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:48:51,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:48:51,860 INFO L87 Difference]: Start difference. First operand 427 states and 633 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:51,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:51,895 INFO L93 Difference]: Finished difference Result 1077 states and 1614 transitions. [2024-10-14 03:48:51,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:48:51,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-10-14 03:48:51,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:51,898 INFO L225 Difference]: With dead ends: 1077 [2024-10-14 03:48:51,899 INFO L226 Difference]: Without dead ends: 749 [2024-10-14 03:48:51,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:48:51,904 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 157 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:51,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 432 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:48:51,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-10-14 03:48:51,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 747. [2024-10-14 03:48:51,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 746 states have (on average 1.4731903485254692) internal successors, (1099), 746 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:51,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1099 transitions. [2024-10-14 03:48:51,931 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1099 transitions. Word has length 52 [2024-10-14 03:48:51,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:51,932 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 1099 transitions. [2024-10-14 03:48:51,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:51,933 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1099 transitions. [2024-10-14 03:48:51,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-14 03:48:51,935 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:51,935 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:51,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:48:51,935 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:51,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:51,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1415622012, now seen corresponding path program 1 times [2024-10-14 03:48:51,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:51,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540581599] [2024-10-14 03:48:51,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:51,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:52,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:52,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:52,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540581599] [2024-10-14 03:48:52,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540581599] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:52,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:52,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:48:52,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426288471] [2024-10-14 03:48:52,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:52,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:48:52,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:52,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:48:52,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:48:52,021 INFO L87 Difference]: Start difference. First operand 747 states and 1099 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:52,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:52,057 INFO L93 Difference]: Finished difference Result 1858 states and 2746 transitions. [2024-10-14 03:48:52,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:48:52,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-10-14 03:48:52,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:52,063 INFO L225 Difference]: With dead ends: 1858 [2024-10-14 03:48:52,063 INFO L226 Difference]: Without dead ends: 1294 [2024-10-14 03:48:52,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:48:52,068 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 144 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:52,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 432 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:48:52,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2024-10-14 03:48:52,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1292. [2024-10-14 03:48:52,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1291 states have (on average 1.450813323005422) internal successors, (1873), 1291 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:52,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1873 transitions. [2024-10-14 03:48:52,094 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1873 transitions. Word has length 52 [2024-10-14 03:48:52,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:52,094 INFO L471 AbstractCegarLoop]: Abstraction has 1292 states and 1873 transitions. [2024-10-14 03:48:52,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:52,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1873 transitions. [2024-10-14 03:48:52,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-14 03:48:52,098 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:52,098 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:52,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:48:52,098 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:52,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:52,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1773262132, now seen corresponding path program 1 times [2024-10-14 03:48:52,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:52,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317586354] [2024-10-14 03:48:52,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:52,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:52,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:52,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:52,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317586354] [2024-10-14 03:48:52,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317586354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:52,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:52,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:48:52,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930065737] [2024-10-14 03:48:52,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:52,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:48:52,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:52,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:48:52,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:48:52,278 INFO L87 Difference]: Start difference. First operand 1292 states and 1873 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:52,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:52,377 INFO L93 Difference]: Finished difference Result 2515 states and 3712 transitions. [2024-10-14 03:48:52,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:48:52,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-10-14 03:48:52,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:52,387 INFO L225 Difference]: With dead ends: 2515 [2024-10-14 03:48:52,388 INFO L226 Difference]: Without dead ends: 2149 [2024-10-14 03:48:52,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:48:52,392 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 636 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:52,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1051 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:48:52,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2024-10-14 03:48:52,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 1744. [2024-10-14 03:48:52,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1743 states have (on average 1.4584050487664946) internal successors, (2542), 1743 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:52,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2542 transitions. [2024-10-14 03:48:52,440 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2542 transitions. Word has length 53 [2024-10-14 03:48:52,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:52,441 INFO L471 AbstractCegarLoop]: Abstraction has 1744 states and 2542 transitions. [2024-10-14 03:48:52,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2542 transitions. [2024-10-14 03:48:52,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-14 03:48:52,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:52,443 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:52,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:48:52,443 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:52,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:52,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1554610116, now seen corresponding path program 1 times [2024-10-14 03:48:52,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:52,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341600436] [2024-10-14 03:48:52,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:52,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:52,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:52,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:52,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341600436] [2024-10-14 03:48:52,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341600436] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:52,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:52,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:48:52,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697394615] [2024-10-14 03:48:52,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:52,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:48:52,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:52,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:48:52,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:48:52,569 INFO L87 Difference]: Start difference. First operand 1744 states and 2542 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:52,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:52,658 INFO L93 Difference]: Finished difference Result 2967 states and 4381 transitions. [2024-10-14 03:48:52,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:48:52,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-10-14 03:48:52,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:52,668 INFO L225 Difference]: With dead ends: 2967 [2024-10-14 03:48:52,668 INFO L226 Difference]: Without dead ends: 2601 [2024-10-14 03:48:52,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:48:52,670 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 625 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:52,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 985 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:48:52,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2024-10-14 03:48:52,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 2090. [2024-10-14 03:48:52,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2090 states, 2089 states have (on average 1.463379607467688) internal successors, (3057), 2089 states have internal predecessors, (3057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:52,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 3057 transitions. [2024-10-14 03:48:52,725 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 3057 transitions. Word has length 53 [2024-10-14 03:48:52,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:52,726 INFO L471 AbstractCegarLoop]: Abstraction has 2090 states and 3057 transitions. [2024-10-14 03:48:52,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:52,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 3057 transitions. [2024-10-14 03:48:52,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-14 03:48:52,727 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:52,727 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:52,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:48:52,727 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:52,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:52,728 INFO L85 PathProgramCache]: Analyzing trace with hash -70625906, now seen corresponding path program 1 times [2024-10-14 03:48:52,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:52,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728838214] [2024-10-14 03:48:52,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:52,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:52,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:52,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728838214] [2024-10-14 03:48:52,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728838214] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:52,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:52,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:48:52,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070647272] [2024-10-14 03:48:52,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:52,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:48:52,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:52,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:48:52,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:48:52,890 INFO L87 Difference]: Start difference. First operand 2090 states and 3057 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:52,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:52,980 INFO L93 Difference]: Finished difference Result 3366 states and 4971 transitions. [2024-10-14 03:48:52,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:48:52,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-10-14 03:48:52,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:52,989 INFO L225 Difference]: With dead ends: 3366 [2024-10-14 03:48:52,989 INFO L226 Difference]: Without dead ends: 3000 [2024-10-14 03:48:52,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:48:52,991 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 629 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:52,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 1054 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:48:52,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2024-10-14 03:48:53,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2381. [2024-10-14 03:48:53,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2380 states have (on average 1.4668067226890755) internal successors, (3491), 2380 states have internal predecessors, (3491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:53,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3491 transitions. [2024-10-14 03:48:53,039 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3491 transitions. Word has length 53 [2024-10-14 03:48:53,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:53,039 INFO L471 AbstractCegarLoop]: Abstraction has 2381 states and 3491 transitions. [2024-10-14 03:48:53,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:53,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3491 transitions. [2024-10-14 03:48:53,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-14 03:48:53,041 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:53,041 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:53,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:48:53,041 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:53,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:53,042 INFO L85 PathProgramCache]: Analyzing trace with hash 901626181, now seen corresponding path program 1 times [2024-10-14 03:48:53,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:53,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501661234] [2024-10-14 03:48:53,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:53,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:53,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:53,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:53,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501661234] [2024-10-14 03:48:53,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501661234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:53,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:53,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:48:53,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496174802] [2024-10-14 03:48:53,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:53,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:48:53,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:53,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:48:53,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:48:53,160 INFO L87 Difference]: Start difference. First operand 2381 states and 3491 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:53,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:53,391 INFO L93 Difference]: Finished difference Result 5654 states and 8291 transitions. [2024-10-14 03:48:53,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:48:53,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-14 03:48:53,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:53,402 INFO L225 Difference]: With dead ends: 5654 [2024-10-14 03:48:53,403 INFO L226 Difference]: Without dead ends: 3318 [2024-10-14 03:48:53,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:48:53,406 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 895 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:53,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 224 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:48:53,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states. [2024-10-14 03:48:53,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 3300. [2024-10-14 03:48:53,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3299 states have (on average 1.4552894816611095) internal successors, (4801), 3299 states have internal predecessors, (4801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:53,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4801 transitions. [2024-10-14 03:48:53,498 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4801 transitions. Word has length 57 [2024-10-14 03:48:53,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:53,499 INFO L471 AbstractCegarLoop]: Abstraction has 3300 states and 4801 transitions. [2024-10-14 03:48:53,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:53,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4801 transitions. [2024-10-14 03:48:53,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-14 03:48:53,501 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:53,501 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:53,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:48:53,501 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:53,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:53,502 INFO L85 PathProgramCache]: Analyzing trace with hash -541876395, now seen corresponding path program 1 times [2024-10-14 03:48:53,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:53,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418330529] [2024-10-14 03:48:53,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:53,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:53,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:53,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:53,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418330529] [2024-10-14 03:48:53,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418330529] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:53,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:53,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:48:53,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361596186] [2024-10-14 03:48:53,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:53,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:48:53,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:53,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:48:53,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:48:53,592 INFO L87 Difference]: Start difference. First operand 3300 states and 4801 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:53,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:53,820 INFO L93 Difference]: Finished difference Result 7792 states and 11330 transitions. [2024-10-14 03:48:53,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:48:53,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-14 03:48:53,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:53,838 INFO L225 Difference]: With dead ends: 7792 [2024-10-14 03:48:53,839 INFO L226 Difference]: Without dead ends: 4573 [2024-10-14 03:48:53,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:48:53,844 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 852 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:53,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 226 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:48:53,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4573 states. [2024-10-14 03:48:53,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4573 to 4548. [2024-10-14 03:48:53,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4548 states, 4547 states have (on average 1.4407301517484055) internal successors, (6551), 4547 states have internal predecessors, (6551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:53,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 6551 transitions. [2024-10-14 03:48:53,926 INFO L78 Accepts]: Start accepts. Automaton has 4548 states and 6551 transitions. Word has length 57 [2024-10-14 03:48:53,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:53,926 INFO L471 AbstractCegarLoop]: Abstraction has 4548 states and 6551 transitions. [2024-10-14 03:48:53,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:53,927 INFO L276 IsEmpty]: Start isEmpty. Operand 4548 states and 6551 transitions. [2024-10-14 03:48:53,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-14 03:48:53,929 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:53,929 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:53,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:48:53,929 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:53,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:53,930 INFO L85 PathProgramCache]: Analyzing trace with hash 55402618, now seen corresponding path program 1 times [2024-10-14 03:48:53,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:53,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571446831] [2024-10-14 03:48:53,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:53,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:54,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:54,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:54,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571446831] [2024-10-14 03:48:54,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571446831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:54,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:54,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:48:54,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602692296] [2024-10-14 03:48:54,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:54,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:48:54,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:54,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:48:54,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:48:54,048 INFO L87 Difference]: Start difference. First operand 4548 states and 6551 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:54,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:54,277 INFO L93 Difference]: Finished difference Result 10874 states and 15612 transitions. [2024-10-14 03:48:54,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:48:54,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-10-14 03:48:54,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:54,299 INFO L225 Difference]: With dead ends: 10874 [2024-10-14 03:48:54,300 INFO L226 Difference]: Without dead ends: 6353 [2024-10-14 03:48:54,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:48:54,307 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 874 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:54,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 205 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:48:54,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6353 states. [2024-10-14 03:48:54,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6353 to 6302. [2024-10-14 03:48:54,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6302 states, 6301 states have (on average 1.4137438501825108) internal successors, (8908), 6301 states have internal predecessors, (8908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:54,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6302 states to 6302 states and 8908 transitions. [2024-10-14 03:48:54,427 INFO L78 Accepts]: Start accepts. Automaton has 6302 states and 8908 transitions. Word has length 58 [2024-10-14 03:48:54,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:54,427 INFO L471 AbstractCegarLoop]: Abstraction has 6302 states and 8908 transitions. [2024-10-14 03:48:54,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:54,427 INFO L276 IsEmpty]: Start isEmpty. Operand 6302 states and 8908 transitions. [2024-10-14 03:48:54,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-14 03:48:54,430 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:54,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:54,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:48:54,431 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:54,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:54,431 INFO L85 PathProgramCache]: Analyzing trace with hash -444759938, now seen corresponding path program 1 times [2024-10-14 03:48:54,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:54,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421830050] [2024-10-14 03:48:54,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:54,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:54,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:54,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421830050] [2024-10-14 03:48:54,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421830050] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:54,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:54,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:48:54,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379027243] [2024-10-14 03:48:54,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:54,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:48:54,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:54,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:48:54,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:48:54,599 INFO L87 Difference]: Start difference. First operand 6302 states and 8908 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:54,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:54,955 INFO L93 Difference]: Finished difference Result 14260 states and 20057 transitions. [2024-10-14 03:48:54,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:48:54,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-10-14 03:48:54,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:54,985 INFO L225 Difference]: With dead ends: 14260 [2024-10-14 03:48:54,986 INFO L226 Difference]: Without dead ends: 10982 [2024-10-14 03:48:54,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:48:54,995 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 1099 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:54,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 323 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:48:55,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10982 states. [2024-10-14 03:48:55,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10982 to 6322. [2024-10-14 03:48:55,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6322 states, 6321 states have (on average 1.4130675526024363) internal successors, (8932), 6321 states have internal predecessors, (8932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:55,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6322 states to 6322 states and 8932 transitions. [2024-10-14 03:48:55,184 INFO L78 Accepts]: Start accepts. Automaton has 6322 states and 8932 transitions. Word has length 59 [2024-10-14 03:48:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:55,185 INFO L471 AbstractCegarLoop]: Abstraction has 6322 states and 8932 transitions. [2024-10-14 03:48:55,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:55,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6322 states and 8932 transitions. [2024-10-14 03:48:55,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-14 03:48:55,189 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:55,189 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:55,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:48:55,189 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:55,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:55,190 INFO L85 PathProgramCache]: Analyzing trace with hash -520399649, now seen corresponding path program 1 times [2024-10-14 03:48:55,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:55,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697016460] [2024-10-14 03:48:55,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:55,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:55,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:55,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:55,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697016460] [2024-10-14 03:48:55,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697016460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:55,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:55,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:48:55,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035380868] [2024-10-14 03:48:55,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:55,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:48:55,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:55,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:48:55,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:48:55,351 INFO L87 Difference]: Start difference. First operand 6322 states and 8932 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:55,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:55,715 INFO L93 Difference]: Finished difference Result 16464 states and 23195 transitions. [2024-10-14 03:48:55,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:48:55,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-10-14 03:48:55,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:55,741 INFO L225 Difference]: With dead ends: 16464 [2024-10-14 03:48:55,742 INFO L226 Difference]: Without dead ends: 13358 [2024-10-14 03:48:55,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:48:55,752 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1280 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:55,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 371 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:48:55,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13358 states. [2024-10-14 03:48:55,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13358 to 6416. [2024-10-14 03:48:55,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6416 states, 6415 states have (on average 1.4112236944660952) internal successors, (9053), 6415 states have internal predecessors, (9053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:55,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6416 states to 6416 states and 9053 transitions. [2024-10-14 03:48:55,950 INFO L78 Accepts]: Start accepts. Automaton has 6416 states and 9053 transitions. Word has length 59 [2024-10-14 03:48:55,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:55,951 INFO L471 AbstractCegarLoop]: Abstraction has 6416 states and 9053 transitions. [2024-10-14 03:48:55,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:55,951 INFO L276 IsEmpty]: Start isEmpty. Operand 6416 states and 9053 transitions. [2024-10-14 03:48:55,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-14 03:48:55,954 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:55,954 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:55,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:48:55,955 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:55,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:55,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1892561408, now seen corresponding path program 1 times [2024-10-14 03:48:55,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:55,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963486322] [2024-10-14 03:48:55,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:55,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:56,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:56,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:56,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963486322] [2024-10-14 03:48:56,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963486322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:56,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:56,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:48:56,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212169248] [2024-10-14 03:48:56,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:56,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:48:56,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:56,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:48:56,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:48:56,089 INFO L87 Difference]: Start difference. First operand 6416 states and 9053 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:56,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:56,505 INFO L93 Difference]: Finished difference Result 19397 states and 27285 transitions. [2024-10-14 03:48:56,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:48:56,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-10-14 03:48:56,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:56,532 INFO L225 Difference]: With dead ends: 19397 [2024-10-14 03:48:56,533 INFO L226 Difference]: Without dead ends: 16299 [2024-10-14 03:48:56,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:48:56,540 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 1445 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:56,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 384 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:48:56,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16299 states. [2024-10-14 03:48:56,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16299 to 6472. [2024-10-14 03:48:56,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6472 states, 6471 states have (on average 1.4096739298408283) internal successors, (9122), 6471 states have internal predecessors, (9122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:56,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6472 states to 6472 states and 9122 transitions. [2024-10-14 03:48:56,702 INFO L78 Accepts]: Start accepts. Automaton has 6472 states and 9122 transitions. Word has length 59 [2024-10-14 03:48:56,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:56,703 INFO L471 AbstractCegarLoop]: Abstraction has 6472 states and 9122 transitions. [2024-10-14 03:48:56,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:56,703 INFO L276 IsEmpty]: Start isEmpty. Operand 6472 states and 9122 transitions. [2024-10-14 03:48:56,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 03:48:56,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:56,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:56,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:48:56,707 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:56,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:56,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2088840466, now seen corresponding path program 1 times [2024-10-14 03:48:56,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:56,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805209867] [2024-10-14 03:48:56,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:56,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:57,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:57,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:57,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805209867] [2024-10-14 03:48:57,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805209867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:57,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:57,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:48:57,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559414334] [2024-10-14 03:48:57,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:57,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:48:57,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:57,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:48:57,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:48:57,085 INFO L87 Difference]: Start difference. First operand 6472 states and 9122 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:57,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:57,774 INFO L93 Difference]: Finished difference Result 15339 states and 21712 transitions. [2024-10-14 03:48:57,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:48:57,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-10-14 03:48:57,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:57,792 INFO L225 Difference]: With dead ends: 15339 [2024-10-14 03:48:57,793 INFO L226 Difference]: Without dead ends: 10137 [2024-10-14 03:48:57,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-14 03:48:57,801 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 944 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:57,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 741 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 03:48:57,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10137 states. [2024-10-14 03:48:57,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10137 to 6340. [2024-10-14 03:48:57,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6340 states, 6339 states have (on average 1.4076352737024767) internal successors, (8923), 6339 states have internal predecessors, (8923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:57,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6340 states to 6340 states and 8923 transitions. [2024-10-14 03:48:57,958 INFO L78 Accepts]: Start accepts. Automaton has 6340 states and 8923 transitions. Word has length 61 [2024-10-14 03:48:57,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:57,959 INFO L471 AbstractCegarLoop]: Abstraction has 6340 states and 8923 transitions. [2024-10-14 03:48:57,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:57,959 INFO L276 IsEmpty]: Start isEmpty. Operand 6340 states and 8923 transitions. [2024-10-14 03:48:57,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 03:48:57,963 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:57,963 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:57,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:48:57,963 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:57,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:57,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1783315053, now seen corresponding path program 1 times [2024-10-14 03:48:57,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:57,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220465368] [2024-10-14 03:48:57,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:57,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:58,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:58,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:58,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220465368] [2024-10-14 03:48:58,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220465368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:58,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:58,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:48:58,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586026896] [2024-10-14 03:48:58,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:58,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:48:58,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:58,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:48:58,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:48:58,302 INFO L87 Difference]: Start difference. First operand 6340 states and 8923 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:59,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:48:59,060 INFO L93 Difference]: Finished difference Result 15391 states and 21726 transitions. [2024-10-14 03:48:59,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:48:59,061 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-10-14 03:48:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:48:59,079 INFO L225 Difference]: With dead ends: 15391 [2024-10-14 03:48:59,080 INFO L226 Difference]: Without dead ends: 10096 [2024-10-14 03:48:59,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-14 03:48:59,090 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 977 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 03:48:59,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 707 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 03:48:59,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10096 states. [2024-10-14 03:48:59,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10096 to 6143. [2024-10-14 03:48:59,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6143 states, 6142 states have (on average 1.4062194724845327) internal successors, (8637), 6142 states have internal predecessors, (8637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:59,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6143 states to 6143 states and 8637 transitions. [2024-10-14 03:48:59,209 INFO L78 Accepts]: Start accepts. Automaton has 6143 states and 8637 transitions. Word has length 61 [2024-10-14 03:48:59,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:48:59,210 INFO L471 AbstractCegarLoop]: Abstraction has 6143 states and 8637 transitions. [2024-10-14 03:48:59,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:48:59,210 INFO L276 IsEmpty]: Start isEmpty. Operand 6143 states and 8637 transitions. [2024-10-14 03:48:59,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 03:48:59,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:48:59,215 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:48:59,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:48:59,215 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:48:59,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:48:59,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1232591148, now seen corresponding path program 1 times [2024-10-14 03:48:59,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:48:59,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326134573] [2024-10-14 03:48:59,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:48:59,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:48:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:48:59,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:48:59,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:48:59,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326134573] [2024-10-14 03:48:59,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326134573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:48:59,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:48:59,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:48:59,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567996775] [2024-10-14 03:48:59,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:48:59,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:48:59,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:48:59,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:48:59,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:48:59,581 INFO L87 Difference]: Start difference. First operand 6143 states and 8637 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:00,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:00,180 INFO L93 Difference]: Finished difference Result 14987 states and 21181 transitions. [2024-10-14 03:49:00,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 03:49:00,181 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-10-14 03:49:00,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:00,197 INFO L225 Difference]: With dead ends: 14987 [2024-10-14 03:49:00,198 INFO L226 Difference]: Without dead ends: 9751 [2024-10-14 03:49:00,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 03:49:00,207 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 626 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:00,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 946 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 03:49:00,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9751 states. [2024-10-14 03:49:00,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9751 to 6002. [2024-10-14 03:49:00,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6002 states, 6001 states have (on average 1.4067655390768206) internal successors, (8442), 6001 states have internal predecessors, (8442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:00,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6002 states to 6002 states and 8442 transitions. [2024-10-14 03:49:00,323 INFO L78 Accepts]: Start accepts. Automaton has 6002 states and 8442 transitions. Word has length 61 [2024-10-14 03:49:00,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:00,323 INFO L471 AbstractCegarLoop]: Abstraction has 6002 states and 8442 transitions. [2024-10-14 03:49:00,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:00,324 INFO L276 IsEmpty]: Start isEmpty. Operand 6002 states and 8442 transitions. [2024-10-14 03:49:00,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 03:49:00,326 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:00,326 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:00,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:49:00,327 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:00,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:00,327 INFO L85 PathProgramCache]: Analyzing trace with hash 574436983, now seen corresponding path program 1 times [2024-10-14 03:49:00,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:00,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463183554] [2024-10-14 03:49:00,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:00,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:00,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:00,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:00,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463183554] [2024-10-14 03:49:00,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463183554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:00,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:00,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:00,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83142118] [2024-10-14 03:49:00,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:00,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:00,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:00,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:00,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:00,382 INFO L87 Difference]: Start difference. First operand 6002 states and 8442 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:00,426 INFO L93 Difference]: Finished difference Result 9059 states and 12751 transitions. [2024-10-14 03:49:00,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:00,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 [2024-10-14 03:49:00,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:00,435 INFO L225 Difference]: With dead ends: 9059 [2024-10-14 03:49:00,436 INFO L226 Difference]: Without dead ends: 5805 [2024-10-14 03:49:00,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:00,440 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 148 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:00,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 519 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:00,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5805 states. [2024-10-14 03:49:00,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5805 to 5803. [2024-10-14 03:49:00,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5803 states, 5802 states have (on average 1.3876249569114099) internal successors, (8051), 5802 states have internal predecessors, (8051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:00,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5803 states to 5803 states and 8051 transitions. [2024-10-14 03:49:00,544 INFO L78 Accepts]: Start accepts. Automaton has 5803 states and 8051 transitions. Word has length 62 [2024-10-14 03:49:00,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:00,545 INFO L471 AbstractCegarLoop]: Abstraction has 5803 states and 8051 transitions. [2024-10-14 03:49:00,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:00,545 INFO L276 IsEmpty]: Start isEmpty. Operand 5803 states and 8051 transitions. [2024-10-14 03:49:00,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 03:49:00,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:00,547 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:00,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:49:00,548 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:00,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:00,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1506383405, now seen corresponding path program 1 times [2024-10-14 03:49:00,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:00,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744822395] [2024-10-14 03:49:00,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:00,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:00,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:00,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744822395] [2024-10-14 03:49:00,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744822395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:00,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:00,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:00,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852471860] [2024-10-14 03:49:00,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:00,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:00,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:00,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:00,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:00,609 INFO L87 Difference]: Start difference. First operand 5803 states and 8051 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:00,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:00,650 INFO L93 Difference]: Finished difference Result 8091 states and 11220 transitions. [2024-10-14 03:49:00,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:00,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 [2024-10-14 03:49:00,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:00,659 INFO L225 Difference]: With dead ends: 8091 [2024-10-14 03:49:00,659 INFO L226 Difference]: Without dead ends: 5022 [2024-10-14 03:49:00,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:00,663 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:00,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 511 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:00,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2024-10-14 03:49:00,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 5020. [2024-10-14 03:49:00,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5020 states, 5019 states have (on average 1.3630205220163378) internal successors, (6841), 5019 states have internal predecessors, (6841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:00,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5020 states to 5020 states and 6841 transitions. [2024-10-14 03:49:00,723 INFO L78 Accepts]: Start accepts. Automaton has 5020 states and 6841 transitions. Word has length 62 [2024-10-14 03:49:00,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:00,724 INFO L471 AbstractCegarLoop]: Abstraction has 5020 states and 6841 transitions. [2024-10-14 03:49:00,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:00,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5020 states and 6841 transitions. [2024-10-14 03:49:00,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 03:49:00,727 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:00,727 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:00,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 03:49:00,727 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:00,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:00,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1863112174, now seen corresponding path program 1 times [2024-10-14 03:49:00,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:00,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006013452] [2024-10-14 03:49:00,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:00,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:00,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:00,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:00,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006013452] [2024-10-14 03:49:00,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006013452] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:00,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:00,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:00,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645367462] [2024-10-14 03:49:00,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:00,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:00,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:00,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:00,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:00,798 INFO L87 Difference]: Start difference. First operand 5020 states and 6841 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:00,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:00,835 INFO L93 Difference]: Finished difference Result 6624 states and 9027 transitions. [2024-10-14 03:49:00,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:00,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 [2024-10-14 03:49:00,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:00,841 INFO L225 Difference]: With dead ends: 6624 [2024-10-14 03:49:00,842 INFO L226 Difference]: Without dead ends: 3866 [2024-10-14 03:49:00,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:00,846 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:00,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 522 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:00,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3866 states. [2024-10-14 03:49:00,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3866 to 3864. [2024-10-14 03:49:00,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3864 states, 3863 states have (on average 1.3383380792130468) internal successors, (5170), 3863 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:00,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3864 states to 3864 states and 5170 transitions. [2024-10-14 03:49:00,897 INFO L78 Accepts]: Start accepts. Automaton has 3864 states and 5170 transitions. Word has length 62 [2024-10-14 03:49:00,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:00,898 INFO L471 AbstractCegarLoop]: Abstraction has 3864 states and 5170 transitions. [2024-10-14 03:49:00,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:00,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3864 states and 5170 transitions. [2024-10-14 03:49:00,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 03:49:00,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:00,901 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:00,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 03:49:00,901 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:00,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:00,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1653707668, now seen corresponding path program 1 times [2024-10-14 03:49:00,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:00,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576551747] [2024-10-14 03:49:00,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:00,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:00,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:00,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:00,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576551747] [2024-10-14 03:49:00,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576551747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:00,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:00,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:00,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919618872] [2024-10-14 03:49:00,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:00,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:00,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:00,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:00,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:00,949 INFO L87 Difference]: Start difference. First operand 3864 states and 5170 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) [2024-10-14 03:49:01,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:01,000 INFO L93 Difference]: Finished difference Result 7115 states and 9578 transitions. [2024-10-14 03:49:01,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:01,001 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 [2024-10-14 03:49:01,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:01,009 INFO L225 Difference]: With dead ends: 7115 [2024-10-14 03:49:01,009 INFO L226 Difference]: Without dead ends: 5196 [2024-10-14 03:49:01,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:01,013 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 171 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:01,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 341 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:01,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2024-10-14 03:49:01,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 3679. [2024-10-14 03:49:01,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3679 states, 3678 states have (on average 1.3371397498640565) internal successors, (4918), 3678 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:01,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 4918 transitions. [2024-10-14 03:49:01,101 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 4918 transitions. Word has length 63 [2024-10-14 03:49:01,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:01,102 INFO L471 AbstractCegarLoop]: Abstraction has 3679 states and 4918 transitions. [2024-10-14 03:49:01,102 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) [2024-10-14 03:49:01,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 4918 transitions. [2024-10-14 03:49:01,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 03:49:01,105 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:01,105 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:01,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 03:49:01,106 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:01,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:01,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1460142013, now seen corresponding path program 1 times [2024-10-14 03:49:01,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:01,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666264896] [2024-10-14 03:49:01,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:01,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:01,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:01,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666264896] [2024-10-14 03:49:01,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666264896] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:01,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:01,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:49:01,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829856228] [2024-10-14 03:49:01,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:01,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 03:49:01,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:01,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 03:49:01,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:49:01,870 INFO L87 Difference]: Start difference. First operand 3679 states and 4918 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 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) [2024-10-14 03:49:02,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:02,760 INFO L93 Difference]: Finished difference Result 5740 states and 7717 transitions. [2024-10-14 03:49:02,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 03:49:02,761 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 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 [2024-10-14 03:49:02,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:02,768 INFO L225 Difference]: With dead ends: 5740 [2024-10-14 03:49:02,769 INFO L226 Difference]: Without dead ends: 5398 [2024-10-14 03:49:02,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 03:49:02,771 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 1149 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:02,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 2040 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 03:49:02,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5398 states. [2024-10-14 03:49:02,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5398 to 3625. [2024-10-14 03:49:02,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3625 states, 3624 states have (on average 1.3374724061810155) internal successors, (4847), 3624 states have internal predecessors, (4847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:02,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 4847 transitions. [2024-10-14 03:49:02,837 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 4847 transitions. Word has length 63 [2024-10-14 03:49:02,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:02,837 INFO L471 AbstractCegarLoop]: Abstraction has 3625 states and 4847 transitions. [2024-10-14 03:49:02,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 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) [2024-10-14 03:49:02,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 4847 transitions. [2024-10-14 03:49:02,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 03:49:02,840 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:02,840 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:02,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 03:49:02,840 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:02,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:02,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1637588281, now seen corresponding path program 1 times [2024-10-14 03:49:02,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:02,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503373984] [2024-10-14 03:49:02,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:02,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:03,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:03,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:03,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503373984] [2024-10-14 03:49:03,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503373984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:03,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:03,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 03:49:03,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795437964] [2024-10-14 03:49:03,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:03,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 03:49:03,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:03,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 03:49:03,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:49:03,522 INFO L87 Difference]: Start difference. First operand 3625 states and 4847 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 13 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) [2024-10-14 03:49:04,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:04,592 INFO L93 Difference]: Finished difference Result 8882 states and 11998 transitions. [2024-10-14 03:49:04,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 03:49:04,593 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 13 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 [2024-10-14 03:49:04,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:04,604 INFO L225 Difference]: With dead ends: 8882 [2024-10-14 03:49:04,604 INFO L226 Difference]: Without dead ends: 8530 [2024-10-14 03:49:04,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2024-10-14 03:49:04,608 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 1645 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:04,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 2679 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 03:49:04,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8530 states. [2024-10-14 03:49:04,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8530 to 3551. [2024-10-14 03:49:04,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3551 states, 3550 states have (on average 1.3371830985915494) internal successors, (4747), 3550 states have internal predecessors, (4747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:04,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 4747 transitions. [2024-10-14 03:49:04,677 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 4747 transitions. Word has length 63 [2024-10-14 03:49:04,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:04,678 INFO L471 AbstractCegarLoop]: Abstraction has 3551 states and 4747 transitions. [2024-10-14 03:49:04,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 13 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) [2024-10-14 03:49:04,678 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 4747 transitions. [2024-10-14 03:49:04,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 03:49:04,680 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:04,680 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:04,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 03:49:04,681 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:04,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:04,681 INFO L85 PathProgramCache]: Analyzing trace with hash 895185990, now seen corresponding path program 1 times [2024-10-14 03:49:04,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:04,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663000725] [2024-10-14 03:49:04,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:04,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:04,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:04,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:04,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663000725] [2024-10-14 03:49:04,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663000725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:04,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:04,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:04,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478852083] [2024-10-14 03:49:04,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:04,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:04,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:04,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:04,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:04,725 INFO L87 Difference]: Start difference. First operand 3551 states and 4747 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) [2024-10-14 03:49:04,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:04,770 INFO L93 Difference]: Finished difference Result 6602 states and 8885 transitions. [2024-10-14 03:49:04,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:04,770 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 [2024-10-14 03:49:04,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:04,776 INFO L225 Difference]: With dead ends: 6602 [2024-10-14 03:49:04,776 INFO L226 Difference]: Without dead ends: 4780 [2024-10-14 03:49:04,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:04,779 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 171 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:04,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 351 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:04,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4780 states. [2024-10-14 03:49:04,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4780 to 3341. [2024-10-14 03:49:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3341 states, 3340 states have (on average 1.3368263473053892) internal successors, (4465), 3340 states have internal predecessors, (4465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:04,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3341 states to 3341 states and 4465 transitions. [2024-10-14 03:49:04,827 INFO L78 Accepts]: Start accepts. Automaton has 3341 states and 4465 transitions. Word has length 63 [2024-10-14 03:49:04,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:04,828 INFO L471 AbstractCegarLoop]: Abstraction has 3341 states and 4465 transitions. [2024-10-14 03:49:04,828 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) [2024-10-14 03:49:04,828 INFO L276 IsEmpty]: Start isEmpty. Operand 3341 states and 4465 transitions. [2024-10-14 03:49:04,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 03:49:04,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:04,831 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:04,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 03:49:04,832 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:04,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:04,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1607583403, now seen corresponding path program 1 times [2024-10-14 03:49:04,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:04,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290420661] [2024-10-14 03:49:04,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:04,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:04,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:04,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:04,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290420661] [2024-10-14 03:49:04,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290420661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:04,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:04,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:49:04,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648367709] [2024-10-14 03:49:04,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:04,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:49:04,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:04,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:49:04,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:49:04,958 INFO L87 Difference]: Start difference. First operand 3341 states and 4465 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:05,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:05,020 INFO L93 Difference]: Finished difference Result 3347 states and 4468 transitions. [2024-10-14 03:49:05,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:49:05,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-10-14 03:49:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:05,023 INFO L225 Difference]: With dead ends: 3347 [2024-10-14 03:49:05,023 INFO L226 Difference]: Without dead ends: 2872 [2024-10-14 03:49:05,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:49:05,025 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 459 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:05,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 661 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:05,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2024-10-14 03:49:05,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2868. [2024-10-14 03:49:05,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2868 states, 2867 states have (on average 1.3393791419602372) internal successors, (3840), 2867 states have internal predecessors, (3840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:05,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2868 states to 2868 states and 3840 transitions. [2024-10-14 03:49:05,055 INFO L78 Accepts]: Start accepts. Automaton has 2868 states and 3840 transitions. Word has length 68 [2024-10-14 03:49:05,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:05,056 INFO L471 AbstractCegarLoop]: Abstraction has 2868 states and 3840 transitions. [2024-10-14 03:49:05,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:05,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2868 states and 3840 transitions. [2024-10-14 03:49:05,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-14 03:49:05,058 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:05,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:05,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 03:49:05,059 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:05,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:05,060 INFO L85 PathProgramCache]: Analyzing trace with hash -701031860, now seen corresponding path program 1 times [2024-10-14 03:49:05,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:05,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827888525] [2024-10-14 03:49:05,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:05,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:05,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:05,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:05,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827888525] [2024-10-14 03:49:05,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827888525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:05,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:05,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:05,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703475545] [2024-10-14 03:49:05,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:05,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:05,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:05,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:05,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:05,181 INFO L87 Difference]: Start difference. First operand 2868 states and 3840 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:05,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:05,216 INFO L93 Difference]: Finished difference Result 7256 states and 9831 transitions. [2024-10-14 03:49:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:05,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-10-14 03:49:05,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:05,223 INFO L225 Difference]: With dead ends: 7256 [2024-10-14 03:49:05,223 INFO L226 Difference]: Without dead ends: 4889 [2024-10-14 03:49:05,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:05,227 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 114 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:05,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 433 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:05,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4889 states. [2024-10-14 03:49:05,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4889 to 4545. [2024-10-14 03:49:05,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4545 states, 4544 states have (on average 1.337588028169014) internal successors, (6078), 4544 states have internal predecessors, (6078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:05,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 6078 transitions. [2024-10-14 03:49:05,282 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 6078 transitions. Word has length 71 [2024-10-14 03:49:05,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:05,282 INFO L471 AbstractCegarLoop]: Abstraction has 4545 states and 6078 transitions. [2024-10-14 03:49:05,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:05,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 6078 transitions. [2024-10-14 03:49:05,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-14 03:49:05,285 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:05,285 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:05,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 03:49:05,285 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:05,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:05,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1394163845, now seen corresponding path program 1 times [2024-10-14 03:49:05,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:05,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556139466] [2024-10-14 03:49:05,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:05,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:05,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:05,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:05,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556139466] [2024-10-14 03:49:05,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556139466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:05,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:05,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:05,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503677210] [2024-10-14 03:49:05,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:05,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:05,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:05,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:05,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:05,405 INFO L87 Difference]: Start difference. First operand 4545 states and 6078 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:05,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:05,444 INFO L93 Difference]: Finished difference Result 12193 states and 16428 transitions. [2024-10-14 03:49:05,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:05,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-10-14 03:49:05,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:05,457 INFO L225 Difference]: With dead ends: 12193 [2024-10-14 03:49:05,457 INFO L226 Difference]: Without dead ends: 8164 [2024-10-14 03:49:05,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:05,464 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 103 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:05,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 426 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:05,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8164 states. [2024-10-14 03:49:05,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8164 to 7574. [2024-10-14 03:49:05,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7574 states, 7573 states have (on average 1.335270038293939) internal successors, (10112), 7573 states have internal predecessors, (10112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:05,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7574 states to 7574 states and 10112 transitions. [2024-10-14 03:49:05,558 INFO L78 Accepts]: Start accepts. Automaton has 7574 states and 10112 transitions. Word has length 72 [2024-10-14 03:49:05,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:05,559 INFO L471 AbstractCegarLoop]: Abstraction has 7574 states and 10112 transitions. [2024-10-14 03:49:05,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:05,559 INFO L276 IsEmpty]: Start isEmpty. Operand 7574 states and 10112 transitions. [2024-10-14 03:49:05,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 03:49:05,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:05,561 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:05,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 03:49:05,562 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:05,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:05,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1262986629, now seen corresponding path program 1 times [2024-10-14 03:49:05,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:05,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773126250] [2024-10-14 03:49:05,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:05,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:05,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:05,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:05,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773126250] [2024-10-14 03:49:05,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773126250] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:05,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:05,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:05,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446654968] [2024-10-14 03:49:05,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:05,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:05,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:05,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:05,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:05,657 INFO L87 Difference]: Start difference. First operand 7574 states and 10112 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:05,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:05,717 INFO L93 Difference]: Finished difference Result 20870 states and 27898 transitions. [2024-10-14 03:49:05,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:05,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-10-14 03:49:05,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:05,737 INFO L225 Difference]: With dead ends: 20870 [2024-10-14 03:49:05,737 INFO L226 Difference]: Without dead ends: 13812 [2024-10-14 03:49:05,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:05,750 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 93 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:05,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 416 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:05,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13812 states. [2024-10-14 03:49:05,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13812 to 12634. [2024-10-14 03:49:05,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12634 states, 12633 states have (on average 1.3238344019631125) internal successors, (16724), 12633 states have internal predecessors, (16724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:05,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12634 states to 12634 states and 16724 transitions. [2024-10-14 03:49:05,916 INFO L78 Accepts]: Start accepts. Automaton has 12634 states and 16724 transitions. Word has length 73 [2024-10-14 03:49:05,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:05,916 INFO L471 AbstractCegarLoop]: Abstraction has 12634 states and 16724 transitions. [2024-10-14 03:49:05,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:05,916 INFO L276 IsEmpty]: Start isEmpty. Operand 12634 states and 16724 transitions. [2024-10-14 03:49:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:49:05,918 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:05,918 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:05,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 03:49:05,919 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:05,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:05,919 INFO L85 PathProgramCache]: Analyzing trace with hash -127158118, now seen corresponding path program 1 times [2024-10-14 03:49:05,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:05,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952110496] [2024-10-14 03:49:05,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:05,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:06,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:06,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952110496] [2024-10-14 03:49:06,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952110496] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:06,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:06,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:49:06,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49458561] [2024-10-14 03:49:06,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:06,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:49:06,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:06,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:49:06,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:49:06,207 INFO L87 Difference]: Start difference. First operand 12634 states and 16724 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:06,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:06,276 INFO L93 Difference]: Finished difference Result 13908 states and 18421 transitions. [2024-10-14 03:49:06,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:49:06,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-14 03:49:06,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:06,299 INFO L225 Difference]: With dead ends: 13908 [2024-10-14 03:49:06,299 INFO L226 Difference]: Without dead ends: 13906 [2024-10-14 03:49:06,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:49:06,306 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:06,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 962 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:06,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13906 states. [2024-10-14 03:49:06,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13906 to 13906. [2024-10-14 03:49:06,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13906 states, 13905 states have (on average 1.294210715569939) internal successors, (17996), 13905 states have internal predecessors, (17996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:06,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13906 states to 13906 states and 17996 transitions. [2024-10-14 03:49:06,489 INFO L78 Accepts]: Start accepts. Automaton has 13906 states and 17996 transitions. Word has length 76 [2024-10-14 03:49:06,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:06,489 INFO L471 AbstractCegarLoop]: Abstraction has 13906 states and 17996 transitions. [2024-10-14 03:49:06,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand 13906 states and 17996 transitions. [2024-10-14 03:49:06,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-14 03:49:06,491 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:06,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:06,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 03:49:06,492 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:06,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:06,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1368110880, now seen corresponding path program 1 times [2024-10-14 03:49:06,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:06,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683036656] [2024-10-14 03:49:06,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:06,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:06,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:06,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:06,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683036656] [2024-10-14 03:49:06,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683036656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:06,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:06,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:06,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740657095] [2024-10-14 03:49:06,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:06,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:06,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:06,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:06,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:06,541 INFO L87 Difference]: Start difference. First operand 13906 states and 17996 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:06,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:06,616 INFO L93 Difference]: Finished difference Result 34106 states and 43966 transitions. [2024-10-14 03:49:06,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:06,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-14 03:49:06,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:06,646 INFO L225 Difference]: With dead ends: 34106 [2024-10-14 03:49:06,647 INFO L226 Difference]: Without dead ends: 20716 [2024-10-14 03:49:06,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:06,660 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 133 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:06,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 342 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:06,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20716 states. [2024-10-14 03:49:06,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20716 to 20714. [2024-10-14 03:49:06,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20714 states, 20713 states have (on average 1.2718582532708926) internal successors, (26344), 20713 states have internal predecessors, (26344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:06,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20714 states to 20714 states and 26344 transitions. [2024-10-14 03:49:06,884 INFO L78 Accepts]: Start accepts. Automaton has 20714 states and 26344 transitions. Word has length 77 [2024-10-14 03:49:06,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:06,884 INFO L471 AbstractCegarLoop]: Abstraction has 20714 states and 26344 transitions. [2024-10-14 03:49:06,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:06,884 INFO L276 IsEmpty]: Start isEmpty. Operand 20714 states and 26344 transitions. [2024-10-14 03:49:06,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-14 03:49:06,891 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:06,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:06,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 03:49:06,891 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:06,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:06,892 INFO L85 PathProgramCache]: Analyzing trace with hash 989291744, now seen corresponding path program 1 times [2024-10-14 03:49:06,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:06,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037471163] [2024-10-14 03:49:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:06,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:07,295 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:07,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:07,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037471163] [2024-10-14 03:49:07,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037471163] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:49:07,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790907559] [2024-10-14 03:49:07,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:07,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:49:07,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:49:07,298 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:49:07,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 03:49:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:07,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 03:49:07,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:49:08,725 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:08,725 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:49:10,123 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:10,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790907559] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:49:10,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:49:10,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 14] total 30 [2024-10-14 03:49:10,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244408996] [2024-10-14 03:49:10,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:49:10,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-14 03:49:10,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:10,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-14 03:49:10,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=798, Unknown=0, NotChecked=0, Total=930 [2024-10-14 03:49:10,126 INFO L87 Difference]: Start difference. First operand 20714 states and 26344 transitions. Second operand has 31 states, 31 states have (on average 7.806451612903226) internal successors, (242), 30 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:22,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:22,682 INFO L93 Difference]: Finished difference Result 170221 states and 212923 transitions. [2024-10-14 03:49:22,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2024-10-14 03:49:22,682 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 7.806451612903226) internal successors, (242), 30 states have internal predecessors, (242), 0 states have call successors, (0), 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 96 [2024-10-14 03:49:22,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:22,930 INFO L225 Difference]: With dead ends: 170221 [2024-10-14 03:49:22,930 INFO L226 Difference]: Without dead ends: 159215 [2024-10-14 03:49:22,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14140 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=6204, Invalid=32802, Unknown=0, NotChecked=0, Total=39006 [2024-10-14 03:49:22,968 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 6326 mSDsluCounter, 6480 mSDsCounter, 0 mSdLazyCounter, 6322 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6326 SdHoareTripleChecker+Valid, 6906 SdHoareTripleChecker+Invalid, 6426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 6322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:22,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6326 Valid, 6906 Invalid, 6426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 6322 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-10-14 03:49:23,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159215 states. [2024-10-14 03:49:24,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159215 to 21269. [2024-10-14 03:49:24,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21269 states, 21268 states have (on average 1.2706413391009967) internal successors, (27024), 21268 states have internal predecessors, (27024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:24,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21269 states to 21269 states and 27024 transitions. [2024-10-14 03:49:24,152 INFO L78 Accepts]: Start accepts. Automaton has 21269 states and 27024 transitions. Word has length 96 [2024-10-14 03:49:24,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:24,152 INFO L471 AbstractCegarLoop]: Abstraction has 21269 states and 27024 transitions. [2024-10-14 03:49:24,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.806451612903226) internal successors, (242), 30 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 21269 states and 27024 transitions. [2024-10-14 03:49:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-14 03:49:24,160 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:24,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:24,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 03:49:24,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:49:24,361 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:24,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:24,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1510327294, now seen corresponding path program 1 times [2024-10-14 03:49:24,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:24,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485990065] [2024-10-14 03:49:24,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:24,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:24,703 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:24,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:24,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485990065] [2024-10-14 03:49:24,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485990065] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:49:24,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166681994] [2024-10-14 03:49:24,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:24,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:49:24,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:49:24,707 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:49:24,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 03:49:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:24,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 03:49:24,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:49:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:26,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:49:27,412 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:27,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166681994] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:49:27,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:49:27,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 14] total 30 [2024-10-14 03:49:27,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594368216] [2024-10-14 03:49:27,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:49:27,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-14 03:49:27,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:27,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-14 03:49:27,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=798, Unknown=0, NotChecked=0, Total=930 [2024-10-14 03:49:27,415 INFO L87 Difference]: Start difference. First operand 21269 states and 27024 transitions. Second operand has 31 states, 31 states have (on average 8.096774193548388) internal successors, (251), 30 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:40,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:40,934 INFO L93 Difference]: Finished difference Result 151227 states and 190180 transitions. [2024-10-14 03:49:40,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 216 states. [2024-10-14 03:49:40,935 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 8.096774193548388) internal successors, (251), 30 states have internal predecessors, (251), 0 states have call successors, (0), 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 96 [2024-10-14 03:49:40,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:41,193 INFO L225 Difference]: With dead ends: 151227 [2024-10-14 03:49:41,193 INFO L226 Difference]: Without dead ends: 139917 [2024-10-14 03:49:41,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 243 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24100 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=9200, Invalid=50580, Unknown=0, NotChecked=0, Total=59780 [2024-10-14 03:49:41,223 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 5011 mSDsluCounter, 5769 mSDsCounter, 0 mSdLazyCounter, 6124 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5011 SdHoareTripleChecker+Valid, 6115 SdHoareTripleChecker+Invalid, 6206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 6124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:41,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5011 Valid, 6115 Invalid, 6206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 6124 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-14 03:49:41,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139917 states. [2024-10-14 03:49:42,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139917 to 45599. [2024-10-14 03:49:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45599 states, 45598 states have (on average 1.2727970525023027) internal successors, (58037), 45598 states have internal predecessors, (58037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:42,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45599 states to 45599 states and 58037 transitions. [2024-10-14 03:49:42,331 INFO L78 Accepts]: Start accepts. Automaton has 45599 states and 58037 transitions. Word has length 96 [2024-10-14 03:49:42,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:42,331 INFO L471 AbstractCegarLoop]: Abstraction has 45599 states and 58037 transitions. [2024-10-14 03:49:42,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 8.096774193548388) internal successors, (251), 30 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:42,332 INFO L276 IsEmpty]: Start isEmpty. Operand 45599 states and 58037 transitions. [2024-10-14 03:49:42,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-14 03:49:42,348 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:42,348 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:42,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 03:49:42,552 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,SelfDestructingSolverStorable30 [2024-10-14 03:49:42,553 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:42,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:42,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1227486004, now seen corresponding path program 1 times [2024-10-14 03:49:42,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:42,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160818564] [2024-10-14 03:49:42,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:42,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:42,843 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:42,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:42,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160818564] [2024-10-14 03:49:42,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160818564] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:49:42,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406433936] [2024-10-14 03:49:42,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:42,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:49:42,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:49:42,846 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) [2024-10-14 03:49:42,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 03:49:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:43,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 03:49:43,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:49:43,749 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:43,749 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:49:43,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406433936] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:43,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:49:43,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5] total 17 [2024-10-14 03:49:43,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532938132] [2024-10-14 03:49:43,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:43,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 03:49:43,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:43,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 03:49:43,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-10-14 03:49:43,751 INFO L87 Difference]: Start difference. First operand 45599 states and 58037 transitions. Second operand has 14 states, 14 states have (on average 6.857142857142857) internal successors, (96), 13 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:45,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:45,729 INFO L93 Difference]: Finished difference Result 137630 states and 174578 transitions. [2024-10-14 03:49:45,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-14 03:49:45,730 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.857142857142857) internal successors, (96), 13 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-10-14 03:49:45,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:45,879 INFO L225 Difference]: With dead ends: 137630 [2024-10-14 03:49:45,879 INFO L226 Difference]: Without dead ends: 118717 [2024-10-14 03:49:45,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=377, Invalid=1693, Unknown=0, NotChecked=0, Total=2070 [2024-10-14 03:49:45,932 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 1456 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 2418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:45,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 2755 Invalid, 2418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 03:49:46,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118717 states. [2024-10-14 03:49:46,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118717 to 72561. [2024-10-14 03:49:47,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72561 states, 72560 states have (on average 1.2742282249173098) internal successors, (92458), 72560 states have internal predecessors, (92458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:47,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72561 states to 72561 states and 92458 transitions. [2024-10-14 03:49:47,134 INFO L78 Accepts]: Start accepts. Automaton has 72561 states and 92458 transitions. Word has length 96 [2024-10-14 03:49:47,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:47,135 INFO L471 AbstractCegarLoop]: Abstraction has 72561 states and 92458 transitions. [2024-10-14 03:49:47,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.857142857142857) internal successors, (96), 13 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:47,135 INFO L276 IsEmpty]: Start isEmpty. Operand 72561 states and 92458 transitions. [2024-10-14 03:49:47,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-14 03:49:47,150 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:47,150 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:47,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 03:49:47,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:49:47,355 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:47,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:47,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1809522193, now seen corresponding path program 1 times [2024-10-14 03:49:47,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:47,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432814354] [2024-10-14 03:49:47,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:47,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 03:49:47,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:47,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432814354] [2024-10-14 03:49:47,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432814354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:47,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:47,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:47,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084719545] [2024-10-14 03:49:47,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:47,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:47,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:47,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:47,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:47,413 INFO L87 Difference]: Start difference. First operand 72561 states and 92458 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:48,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:48,174 INFO L93 Difference]: Finished difference Result 148866 states and 189977 transitions. [2024-10-14 03:49:48,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:48,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 97 [2024-10-14 03:49:48,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:48,294 INFO L225 Difference]: With dead ends: 148866 [2024-10-14 03:49:48,294 INFO L226 Difference]: Without dead ends: 77883 [2024-10-14 03:49:48,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:48,320 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 159 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:48,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 200 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:49:48,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77883 states. [2024-10-14 03:49:49,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77883 to 71585. [2024-10-14 03:49:49,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71585 states, 71584 states have (on average 1.2587030621367903) internal successors, (90103), 71584 states have internal predecessors, (90103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:49,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71585 states to 71585 states and 90103 transitions. [2024-10-14 03:49:49,468 INFO L78 Accepts]: Start accepts. Automaton has 71585 states and 90103 transitions. Word has length 97 [2024-10-14 03:49:49,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:49,468 INFO L471 AbstractCegarLoop]: Abstraction has 71585 states and 90103 transitions. [2024-10-14 03:49:49,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:49,468 INFO L276 IsEmpty]: Start isEmpty. Operand 71585 states and 90103 transitions. [2024-10-14 03:49:49,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-14 03:49:49,478 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:49,478 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:49,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-14 03:49:49,478 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:49,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:49,479 INFO L85 PathProgramCache]: Analyzing trace with hash 132470367, now seen corresponding path program 1 times [2024-10-14 03:49:49,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:49,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360710114] [2024-10-14 03:49:49,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:49,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:49,930 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:49,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:49,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360710114] [2024-10-14 03:49:49,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360710114] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:49:49,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261729047] [2024-10-14 03:49:49,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:49,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:49:49,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:49:49,933 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) [2024-10-14 03:49:49,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 03:49:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:50,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-14 03:49:50,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:49:50,851 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 03:49:50,851 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:49:50,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261729047] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:50,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:49:50,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 16 [2024-10-14 03:49:50,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947201972] [2024-10-14 03:49:50,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:50,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 03:49:50,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:50,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 03:49:50,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-10-14 03:49:50,853 INFO L87 Difference]: Start difference. First operand 71585 states and 90103 transitions. Second operand has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 12 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:51,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:51,836 INFO L93 Difference]: Finished difference Result 176482 states and 222402 transitions. [2024-10-14 03:49:51,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 03:49:51,836 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 12 states have internal predecessors, (92), 0 states have call successors, (0), 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 97 [2024-10-14 03:49:51,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:51,985 INFO L225 Difference]: With dead ends: 176482 [2024-10-14 03:49:51,985 INFO L226 Difference]: Without dead ends: 129285 [2024-10-14 03:49:52,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-10-14 03:49:52,009 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 781 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:52,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 2034 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:49:52,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129285 states. [2024-10-14 03:49:52,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129285 to 80135. [2024-10-14 03:49:52,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80135 states, 80134 states have (on average 1.25804277834627) internal successors, (100812), 80134 states have internal predecessors, (100812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:53,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80135 states to 80135 states and 100812 transitions. [2024-10-14 03:49:53,343 INFO L78 Accepts]: Start accepts. Automaton has 80135 states and 100812 transitions. Word has length 97 [2024-10-14 03:49:53,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:53,343 INFO L471 AbstractCegarLoop]: Abstraction has 80135 states and 100812 transitions. [2024-10-14 03:49:53,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 12 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:53,343 INFO L276 IsEmpty]: Start isEmpty. Operand 80135 states and 100812 transitions. [2024-10-14 03:49:53,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-14 03:49:53,352 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:53,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:53,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 03:49:53,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:49:53,553 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:53,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:53,554 INFO L85 PathProgramCache]: Analyzing trace with hash 514525629, now seen corresponding path program 1 times [2024-10-14 03:49:53,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:53,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041108484] [2024-10-14 03:49:53,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:53,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:53,662 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:53,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:53,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041108484] [2024-10-14 03:49:53,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041108484] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:53,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:53,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:53,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846126899] [2024-10-14 03:49:53,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:53,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:53,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:53,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:53,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:53,664 INFO L87 Difference]: Start difference. First operand 80135 states and 100812 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:54,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:54,082 INFO L93 Difference]: Finished difference Result 158836 states and 199972 transitions. [2024-10-14 03:49:54,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:54,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2024-10-14 03:49:54,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:54,188 INFO L225 Difference]: With dead ends: 158836 [2024-10-14 03:49:54,188 INFO L226 Difference]: Without dead ends: 80137 [2024-10-14 03:49:54,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:54,245 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 91 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:54,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 352 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:54,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80137 states. [2024-10-14 03:49:55,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80137 to 77306. [2024-10-14 03:49:55,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77306 states, 77305 states have (on average 1.2389366793868444) internal successors, (95776), 77305 states have internal predecessors, (95776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:55,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77306 states to 77306 states and 95776 transitions. [2024-10-14 03:49:55,640 INFO L78 Accepts]: Start accepts. Automaton has 77306 states and 95776 transitions. Word has length 97 [2024-10-14 03:49:55,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:55,640 INFO L471 AbstractCegarLoop]: Abstraction has 77306 states and 95776 transitions. [2024-10-14 03:49:55,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:49:55,640 INFO L276 IsEmpty]: Start isEmpty. Operand 77306 states and 95776 transitions. [2024-10-14 03:49:55,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-14 03:49:55,645 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:55,645 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:55,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-14 03:49:55,645 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:55,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:55,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1975527063, now seen corresponding path program 1 times [2024-10-14 03:49:55,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:55,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773519518] [2024-10-14 03:49:55,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:55,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:55,860 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:55,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:55,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773519518] [2024-10-14 03:49:55,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773519518] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:49:55,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927819328] [2024-10-14 03:49:55,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:55,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:49:55,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:49:55,863 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) [2024-10-14 03:49:55,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 03:49:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:56,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-14 03:49:56,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:49:56,270 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:56,270 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:49:56,966 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:49:56,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927819328] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:49:56,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:49:56,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 14 [2024-10-14 03:49:56,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262980837] [2024-10-14 03:49:56,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:49:56,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 03:49:56,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:56,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 03:49:56,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:49:56,970 INFO L87 Difference]: Start difference. First operand 77306 states and 95776 transitions. Second operand has 14 states, 14 states have (on average 18.071428571428573) internal successors, (253), 14 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)