./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.p+lhb-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 169d16a82e2efb21b41720aab8fadcf5ecf67324651e69e91d6cb4f921e3dcd4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:47:40,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:47:40,777 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:47:40,782 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:47:40,783 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:47:40,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:47:40,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:47:40,806 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:47:40,807 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:47:40,807 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:47:40,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:47:40,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:47:40,808 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:47:40,809 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:47:40,810 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:47:40,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:47:40,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:47:40,811 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:47:40,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:47:40,811 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:47:40,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:47:40,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:47:40,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:47:40,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:47:40,815 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:47:40,815 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:47:40,815 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:47:40,816 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:47:40,816 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:47:40,816 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:47:40,816 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:47:40,816 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:47:40,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:47:40,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:47:40,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:47:40,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:47:40,817 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:47:40,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:47:40,817 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:47:40,817 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:47:40,818 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:47:40,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:47:40,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 169d16a82e2efb21b41720aab8fadcf5ecf67324651e69e91d6cb4f921e3dcd4 [2024-11-22 02:47:41,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:47:41,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:47:41,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:47:41,035 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:47:41,035 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:47:41,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-11-22 02:47:42,270 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:47:42,467 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:47:42,468 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-11-22 02:47:42,490 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/698143dc2/16c335db4b6949d2853660f32c15be00/FLAG98456aba5 [2024-11-22 02:47:42,502 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/698143dc2/16c335db4b6949d2853660f32c15be00 [2024-11-22 02:47:42,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:47:42,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:47:42,506 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:47:42,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:47:42,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:47:42,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:47:42" (1/1) ... [2024-11-22 02:47:42,515 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1d6340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:42, skipping insertion in model container [2024-11-22 02:47:42,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:47:42" (1/1) ... [2024-11-22 02:47:42,561 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:47:42,818 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[13215,13228] [2024-11-22 02:47:42,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:47:42,908 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:47:42,952 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[13215,13228] [2024-11-22 02:47:42,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:47:43,008 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:47:43,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43 WrapperNode [2024-11-22 02:47:43,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:47:43,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:47:43,009 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:47:43,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:47:43,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43" (1/1) ... [2024-11-22 02:47:43,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43" (1/1) ... [2024-11-22 02:47:43,076 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1437 [2024-11-22 02:47:43,077 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:47:43,081 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:47:43,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:47:43,081 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:47:43,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43" (1/1) ... [2024-11-22 02:47:43,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43" (1/1) ... [2024-11-22 02:47:43,102 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43" (1/1) ... [2024-11-22 02:47:43,123 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 02:47:43,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43" (1/1) ... [2024-11-22 02:47:43,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43" (1/1) ... [2024-11-22 02:47:43,139 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43" (1/1) ... [2024-11-22 02:47:43,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43" (1/1) ... [2024-11-22 02:47:43,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43" (1/1) ... [2024-11-22 02:47:43,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43" (1/1) ... [2024-11-22 02:47:43,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:47:43,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:47:43,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:47:43,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:47:43,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43" (1/1) ... [2024-11-22 02:47:43,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:47:43,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:47:43,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 02:47:43,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 02:47:43,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:47:43,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:47:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:47:43,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:47:43,381 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:47:43,387 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:47:44,382 INFO L? ?]: Removed 190 outVars from TransFormulas that were not future-live. [2024-11-22 02:47:44,383 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:47:44,403 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:47:44,405 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 02:47:44,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:47:44 BoogieIcfgContainer [2024-11-22 02:47:44,405 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:47:44,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:47:44,408 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:47:44,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:47:44,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:47:42" (1/3) ... [2024-11-22 02:47:44,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f90f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:47:44, skipping insertion in model container [2024-11-22 02:47:44,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:47:43" (2/3) ... [2024-11-22 02:47:44,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f90f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:47:44, skipping insertion in model container [2024-11-22 02:47:44,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:47:44" (3/3) ... [2024-11-22 02:47:44,413 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-11-22 02:47:44,427 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:47:44,428 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:47:44,484 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:47:44,489 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;@551cd389, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:47:44,490 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:47:44,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 406 states, 404 states have (on average 1.6485148514851484) internal successors, (666), 405 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:44,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-22 02:47:44,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:47:44,520 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:47:44,520 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:47:44,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:47:44,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1653668950, now seen corresponding path program 1 times [2024-11-22 02:47:44,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:47:44,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705010114] [2024-11-22 02:47:44,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:47:44,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:47:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:47:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:47:44,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:47:44,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705010114] [2024-11-22 02:47:44,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705010114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:47:44,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:47:44,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:47:44,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737878634] [2024-11-22 02:47:44,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:47:45,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:47:45,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:47:45,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:47:45,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:47:45,026 INFO L87 Difference]: Start difference. First operand has 406 states, 404 states have (on average 1.6485148514851484) internal successors, (666), 405 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:45,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:47:45,184 INFO L93 Difference]: Finished difference Result 779 states and 1267 transitions. [2024-11-22 02:47:45,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:47:45,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-11-22 02:47:45,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:47:45,200 INFO L225 Difference]: With dead ends: 779 [2024-11-22 02:47:45,202 INFO L226 Difference]: Without dead ends: 403 [2024-11-22 02:47:45,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:47:45,210 INFO L432 NwaCegarLoop]: 661 mSDtfsCounter, 146 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:47:45,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1789 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:47:45,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-22 02:47:45,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-22 02:47:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 1.5497512437810945) internal successors, (623), 402 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:45,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 623 transitions. [2024-11-22 02:47:45,268 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 623 transitions. Word has length 103 [2024-11-22 02:47:45,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:47:45,269 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 623 transitions. [2024-11-22 02:47:45,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:45,269 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 623 transitions. [2024-11-22 02:47:45,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 02:47:45,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:47:45,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:47:45,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:47:45,277 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:47:45,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:47:45,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1984435279, now seen corresponding path program 1 times [2024-11-22 02:47:45,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:47:45,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031499161] [2024-11-22 02:47:45,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:47:45,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:47:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:47:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:47:45,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:47:45,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031499161] [2024-11-22 02:47:45,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031499161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:47:45,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:47:45,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:47:45,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515278786] [2024-11-22 02:47:45,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:47:45,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:47:45,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:47:45,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:47:45,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:45,470 INFO L87 Difference]: Start difference. First operand 403 states and 623 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:45,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:47:45,515 INFO L93 Difference]: Finished difference Result 952 states and 1499 transitions. [2024-11-22 02:47:45,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:47:45,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-11-22 02:47:45,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:47:45,518 INFO L225 Difference]: With dead ends: 952 [2024-11-22 02:47:45,518 INFO L226 Difference]: Without dead ends: 611 [2024-11-22 02:47:45,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:45,521 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 419 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:47:45,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1096 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:47:45,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-22 02:47:45,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 609. [2024-11-22 02:47:45,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 608 states have (on average 1.5608552631578947) internal successors, (949), 608 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:45,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 949 transitions. [2024-11-22 02:47:45,547 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 949 transitions. Word has length 134 [2024-11-22 02:47:45,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:47:45,548 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 949 transitions. [2024-11-22 02:47:45,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:45,548 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 949 transitions. [2024-11-22 02:47:45,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 02:47:45,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:47:45,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:47:45,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:47:45,552 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:47:45,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:47:45,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1203481045, now seen corresponding path program 1 times [2024-11-22 02:47:45,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:47:45,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199923755] [2024-11-22 02:47:45,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:47:45,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:47:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:47:45,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:47:45,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:47:45,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199923755] [2024-11-22 02:47:45,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199923755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:47:45,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:47:45,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:47:45,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652727836] [2024-11-22 02:47:45,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:47:45,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:47:45,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:47:45,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:47:45,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:45,668 INFO L87 Difference]: Start difference. First operand 609 states and 949 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:45,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:47:45,709 INFO L93 Difference]: Finished difference Result 1494 states and 2358 transitions. [2024-11-22 02:47:45,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:47:45,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-11-22 02:47:45,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:47:45,714 INFO L225 Difference]: With dead ends: 1494 [2024-11-22 02:47:45,715 INFO L226 Difference]: Without dead ends: 960 [2024-11-22 02:47:45,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:45,717 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 403 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:47:45,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1181 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:47:45,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2024-11-22 02:47:45,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 958. [2024-11-22 02:47:45,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 957 states have (on average 1.5663531870428422) internal successors, (1499), 957 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:45,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1499 transitions. [2024-11-22 02:47:45,739 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1499 transitions. Word has length 136 [2024-11-22 02:47:45,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:47:45,740 INFO L471 AbstractCegarLoop]: Abstraction has 958 states and 1499 transitions. [2024-11-22 02:47:45,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:45,741 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1499 transitions. [2024-11-22 02:47:45,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-22 02:47:45,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:47:45,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:47:45,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:47:45,744 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:47:45,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:47:45,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1755736889, now seen corresponding path program 1 times [2024-11-22 02:47:45,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:47:45,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957449105] [2024-11-22 02:47:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:47:45,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:47:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:47:45,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:47:45,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:47:45,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957449105] [2024-11-22 02:47:45,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957449105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:47:45,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:47:45,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:47:45,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098373868] [2024-11-22 02:47:45,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:47:45,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:47:45,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:47:45,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:47:45,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:45,847 INFO L87 Difference]: Start difference. First operand 958 states and 1499 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:45,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:47:45,879 INFO L93 Difference]: Finished difference Result 2397 states and 3779 transitions. [2024-11-22 02:47:45,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:47:45,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-22 02:47:45,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:47:45,887 INFO L225 Difference]: With dead ends: 2397 [2024-11-22 02:47:45,887 INFO L226 Difference]: Without dead ends: 1527 [2024-11-22 02:47:45,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:45,891 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 389 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:47:45,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1026 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:47:45,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2024-11-22 02:47:45,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1525. [2024-11-22 02:47:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 1.56496062992126) internal successors, (2385), 1524 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:45,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2385 transitions. [2024-11-22 02:47:45,914 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2385 transitions. Word has length 138 [2024-11-22 02:47:45,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:47:45,915 INFO L471 AbstractCegarLoop]: Abstraction has 1525 states and 2385 transitions. [2024-11-22 02:47:45,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:45,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2385 transitions. [2024-11-22 02:47:45,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-22 02:47:45,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:47:45,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:47:45,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:47:45,919 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:47:45,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:47:45,919 INFO L85 PathProgramCache]: Analyzing trace with hash -175339215, now seen corresponding path program 1 times [2024-11-22 02:47:45,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:47:45,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490285927] [2024-11-22 02:47:45,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:47:45,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:47:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:47:45,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:47:45,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:47:45,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490285927] [2024-11-22 02:47:45,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490285927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:47:45,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:47:45,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:47:45,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833304636] [2024-11-22 02:47:45,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:47:45,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:47:45,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:47:45,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:47:45,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:45,996 INFO L87 Difference]: Start difference. First operand 1525 states and 2385 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:46,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:47:46,034 INFO L93 Difference]: Finished difference Result 3818 states and 5988 transitions. [2024-11-22 02:47:46,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:47:46,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2024-11-22 02:47:46,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:47:46,041 INFO L225 Difference]: With dead ends: 3818 [2024-11-22 02:47:46,041 INFO L226 Difference]: Without dead ends: 2394 [2024-11-22 02:47:46,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:46,044 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 374 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:47:46,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 991 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:47:46,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2024-11-22 02:47:46,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2392. [2024-11-22 02:47:46,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2391 states have (on average 1.5554161438728566) internal successors, (3719), 2391 states have internal predecessors, (3719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:46,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3719 transitions. [2024-11-22 02:47:46,079 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3719 transitions. Word has length 140 [2024-11-22 02:47:46,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:47:46,080 INFO L471 AbstractCegarLoop]: Abstraction has 2392 states and 3719 transitions. [2024-11-22 02:47:46,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:46,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3719 transitions. [2024-11-22 02:47:46,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 02:47:46,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:47:46,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:47:46,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:47:46,084 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:47:46,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:47:46,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1755218565, now seen corresponding path program 1 times [2024-11-22 02:47:46,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:47:46,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983130014] [2024-11-22 02:47:46,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:47:46,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:47:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:47:46,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:47:46,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:47:46,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983130014] [2024-11-22 02:47:46,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983130014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:47:46,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:47:46,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 02:47:46,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575030781] [2024-11-22 02:47:46,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:47:46,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 02:47:46,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:47:46,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 02:47:46,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:47:46,278 INFO L87 Difference]: Start difference. First operand 2392 states and 3719 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:46,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:47:46,581 INFO L93 Difference]: Finished difference Result 14072 states and 21897 transitions. [2024-11-22 02:47:46,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:47:46,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-11-22 02:47:46,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:47:46,619 INFO L225 Difference]: With dead ends: 14072 [2024-11-22 02:47:46,620 INFO L226 Difference]: Without dead ends: 11785 [2024-11-22 02:47:46,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-22 02:47:46,631 INFO L432 NwaCegarLoop]: 595 mSDtfsCounter, 4316 mSDsluCounter, 5388 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4316 SdHoareTripleChecker+Valid, 5983 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:47:46,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4316 Valid, 5983 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:47:46,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11785 states. [2024-11-22 02:47:46,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11785 to 4734. [2024-11-22 02:47:46,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4734 states, 4733 states have (on average 1.5387703359391507) internal successors, (7283), 4733 states have internal predecessors, (7283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:46,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4734 states to 4734 states and 7283 transitions. [2024-11-22 02:47:46,828 INFO L78 Accepts]: Start accepts. Automaton has 4734 states and 7283 transitions. Word has length 142 [2024-11-22 02:47:46,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:47:46,828 INFO L471 AbstractCegarLoop]: Abstraction has 4734 states and 7283 transitions. [2024-11-22 02:47:46,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:46,829 INFO L276 IsEmpty]: Start isEmpty. Operand 4734 states and 7283 transitions. [2024-11-22 02:47:46,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 02:47:46,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:47:46,836 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:47:46,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:47:46,836 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:47:46,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:47:46,837 INFO L85 PathProgramCache]: Analyzing trace with hash -709986120, now seen corresponding path program 1 times [2024-11-22 02:47:46,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:47:46,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115434253] [2024-11-22 02:47:46,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:47:46,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:47:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:47:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:47:46,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:47:46,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115434253] [2024-11-22 02:47:46,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115434253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:47:46,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:47:46,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:47:46,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534413752] [2024-11-22 02:47:46,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:47:46,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:47:46,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:47:46,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:47:46,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:46,906 INFO L87 Difference]: Start difference. First operand 4734 states and 7283 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:46,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:47:46,980 INFO L93 Difference]: Finished difference Result 13106 states and 20134 transitions. [2024-11-22 02:47:46,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:47:46,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-11-22 02:47:46,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:47:47,003 INFO L225 Difference]: With dead ends: 13106 [2024-11-22 02:47:47,004 INFO L226 Difference]: Without dead ends: 8416 [2024-11-22 02:47:47,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:47,011 INFO L432 NwaCegarLoop]: 950 mSDtfsCounter, 413 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:47:47,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 1443 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:47:47,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8416 states. [2024-11-22 02:47:47,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8416 to 8414. [2024-11-22 02:47:47,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8414 states, 8413 states have (on average 1.5253773921312255) internal successors, (12833), 8413 states have internal predecessors, (12833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:47,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8414 states to 8414 states and 12833 transitions. [2024-11-22 02:47:47,200 INFO L78 Accepts]: Start accepts. Automaton has 8414 states and 12833 transitions. Word has length 145 [2024-11-22 02:47:47,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:47:47,200 INFO L471 AbstractCegarLoop]: Abstraction has 8414 states and 12833 transitions. [2024-11-22 02:47:47,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:47,201 INFO L276 IsEmpty]: Start isEmpty. Operand 8414 states and 12833 transitions. [2024-11-22 02:47:47,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 02:47:47,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:47:47,215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:47:47,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:47:47,215 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:47:47,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:47:47,215 INFO L85 PathProgramCache]: Analyzing trace with hash -380882047, now seen corresponding path program 1 times [2024-11-22 02:47:47,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:47:47,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968524271] [2024-11-22 02:47:47,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:47:47,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:47:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:47:47,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:47:47,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:47:47,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968524271] [2024-11-22 02:47:47,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968524271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:47:47,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:47:47,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:47:47,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944322577] [2024-11-22 02:47:47,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:47:47,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:47:47,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:47:47,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:47:47,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:47,303 INFO L87 Difference]: Start difference. First operand 8414 states and 12833 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:47,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:47:47,406 INFO L93 Difference]: Finished difference Result 24239 states and 36920 transitions. [2024-11-22 02:47:47,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:47:47,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-22 02:47:47,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:47:47,443 INFO L225 Difference]: With dead ends: 24239 [2024-11-22 02:47:47,444 INFO L226 Difference]: Without dead ends: 15971 [2024-11-22 02:47:47,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:47,459 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 449 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:47:47,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 1087 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:47:47,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15971 states. [2024-11-22 02:47:47,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15971 to 15969. [2024-11-22 02:47:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15969 states, 15968 states have (on average 1.5127129258517034) internal successors, (24155), 15968 states have internal predecessors, (24155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:47,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15969 states to 15969 states and 24155 transitions. [2024-11-22 02:47:47,836 INFO L78 Accepts]: Start accepts. Automaton has 15969 states and 24155 transitions. Word has length 146 [2024-11-22 02:47:47,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:47:47,836 INFO L471 AbstractCegarLoop]: Abstraction has 15969 states and 24155 transitions. [2024-11-22 02:47:47,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:47,837 INFO L276 IsEmpty]: Start isEmpty. Operand 15969 states and 24155 transitions. [2024-11-22 02:47:47,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 02:47:47,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:47:47,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:47:47,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:47:47,863 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:47:47,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:47:47,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1424530646, now seen corresponding path program 1 times [2024-11-22 02:47:47,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:47:47,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391396269] [2024-11-22 02:47:47,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:47:47,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:47:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:47:47,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:47:47,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:47:47,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391396269] [2024-11-22 02:47:47,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391396269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:47:47,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:47:47,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:47:47,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166337306] [2024-11-22 02:47:47,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:47:47,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:47:47,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:47:47,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:47:47,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:47,956 INFO L87 Difference]: Start difference. First operand 15969 states and 24155 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:48,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:47:48,101 INFO L93 Difference]: Finished difference Result 45751 states and 69018 transitions. [2024-11-22 02:47:48,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:47:48,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-22 02:47:48,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:47:48,155 INFO L225 Difference]: With dead ends: 45751 [2024-11-22 02:47:48,156 INFO L226 Difference]: Without dead ends: 30164 [2024-11-22 02:47:48,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:48,182 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 431 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:47:48,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1087 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:47:48,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30164 states. [2024-11-22 02:47:48,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30164 to 30162. [2024-11-22 02:47:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30162 states, 30161 states have (on average 1.497132057955638) internal successors, (45155), 30161 states have internal predecessors, (45155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:48,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30162 states to 30162 states and 45155 transitions. [2024-11-22 02:47:48,842 INFO L78 Accepts]: Start accepts. Automaton has 30162 states and 45155 transitions. Word has length 146 [2024-11-22 02:47:48,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:47:48,842 INFO L471 AbstractCegarLoop]: Abstraction has 30162 states and 45155 transitions. [2024-11-22 02:47:48,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:48,843 INFO L276 IsEmpty]: Start isEmpty. Operand 30162 states and 45155 transitions. [2024-11-22 02:47:48,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 02:47:48,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:47:48,892 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:47:48,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:47:48,893 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:47:48,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:47:48,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1146158271, now seen corresponding path program 1 times [2024-11-22 02:47:48,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:47:48,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769267539] [2024-11-22 02:47:48,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:47:48,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:47:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:47:48,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:47:48,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:47:48,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769267539] [2024-11-22 02:47:48,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769267539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:47:48,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:47:48,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:47:48,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629251925] [2024-11-22 02:47:48,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:47:48,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:47:48,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:47:48,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:47:48,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:48,976 INFO L87 Difference]: Start difference. First operand 30162 states and 45155 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:49,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:47:49,254 INFO L93 Difference]: Finished difference Result 85361 states and 127210 transitions. [2024-11-22 02:47:49,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:47:49,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-22 02:47:49,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:47:49,356 INFO L225 Difference]: With dead ends: 85361 [2024-11-22 02:47:49,357 INFO L226 Difference]: Without dead ends: 56499 [2024-11-22 02:47:49,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:49,400 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 413 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:47:49,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 1087 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:47:49,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56499 states. [2024-11-22 02:47:50,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56499 to 56497. [2024-11-22 02:47:50,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56497 states, 56496 states have (on average 1.4774320305862363) internal successors, (83469), 56496 states have internal predecessors, (83469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:50,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56497 states to 56497 states and 83469 transitions. [2024-11-22 02:47:50,419 INFO L78 Accepts]: Start accepts. Automaton has 56497 states and 83469 transitions. Word has length 146 [2024-11-22 02:47:50,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:47:50,420 INFO L471 AbstractCegarLoop]: Abstraction has 56497 states and 83469 transitions. [2024-11-22 02:47:50,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:50,420 INFO L276 IsEmpty]: Start isEmpty. Operand 56497 states and 83469 transitions. [2024-11-22 02:47:50,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 02:47:50,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:47:50,496 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:47:50,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 02:47:50,496 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:47:50,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:47:50,497 INFO L85 PathProgramCache]: Analyzing trace with hash -405922622, now seen corresponding path program 1 times [2024-11-22 02:47:50,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:47:50,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569108155] [2024-11-22 02:47:50,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:47:50,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:47:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:47:50,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:47:50,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:47:50,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569108155] [2024-11-22 02:47:50,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569108155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:47:50,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:47:50,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:47:50,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325492356] [2024-11-22 02:47:50,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:47:50,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:47:50,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:47:50,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:47:50,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:50,808 INFO L87 Difference]: Start difference. First operand 56497 states and 83469 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:51,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:47:51,391 INFO L93 Difference]: Finished difference Result 155711 states and 228154 transitions. [2024-11-22 02:47:51,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:47:51,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-22 02:47:51,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:47:51,595 INFO L225 Difference]: With dead ends: 155711 [2024-11-22 02:47:51,595 INFO L226 Difference]: Without dead ends: 104254 [2024-11-22 02:47:51,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:47:51,648 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 395 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:47:51,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1087 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:47:51,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104254 states. [2024-11-22 02:47:53,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104254 to 104252. [2024-11-22 02:47:53,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104252 states, 104251 states have (on average 1.4505280524887052) internal successors, (151219), 104251 states have internal predecessors, (151219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:53,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104252 states to 104252 states and 151219 transitions. [2024-11-22 02:47:53,846 INFO L78 Accepts]: Start accepts. Automaton has 104252 states and 151219 transitions. Word has length 146 [2024-11-22 02:47:53,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:47:53,847 INFO L471 AbstractCegarLoop]: Abstraction has 104252 states and 151219 transitions. [2024-11-22 02:47:53,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:53,847 INFO L276 IsEmpty]: Start isEmpty. Operand 104252 states and 151219 transitions. [2024-11-22 02:47:53,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 02:47:53,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:47:53,987 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:47:53,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 02:47:53,987 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:47:53,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:47:53,989 INFO L85 PathProgramCache]: Analyzing trace with hash 541145625, now seen corresponding path program 1 times [2024-11-22 02:47:53,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:47:53,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735917896] [2024-11-22 02:47:53,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:47:53,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:47:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:47:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:47:54,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:47:54,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735917896] [2024-11-22 02:47:54,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735917896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:47:54,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:47:54,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 02:47:54,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929836424] [2024-11-22 02:47:54,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:47:54,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 02:47:54,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:47:54,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 02:47:54,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:47:54,245 INFO L87 Difference]: Start difference. First operand 104252 states and 151219 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:54,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:47:54,997 INFO L93 Difference]: Finished difference Result 178977 states and 256727 transitions. [2024-11-22 02:47:54,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:47:54,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-22 02:47:54,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:47:55,203 INFO L225 Difference]: With dead ends: 178977 [2024-11-22 02:47:55,204 INFO L226 Difference]: Without dead ends: 114413 [2024-11-22 02:47:55,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:47:55,259 INFO L432 NwaCegarLoop]: 1203 mSDtfsCounter, 3127 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3127 SdHoareTripleChecker+Valid, 2892 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:47:55,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3127 Valid, 2892 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:47:55,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114413 states. [2024-11-22 02:47:56,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114413 to 110118. [2024-11-22 02:47:56,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110118 states, 110117 states have (on average 1.4261921410862992) internal successors, (157048), 110117 states have internal predecessors, (157048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:56,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110118 states to 110118 states and 157048 transitions. [2024-11-22 02:47:56,981 INFO L78 Accepts]: Start accepts. Automaton has 110118 states and 157048 transitions. Word has length 146 [2024-11-22 02:47:56,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:47:56,982 INFO L471 AbstractCegarLoop]: Abstraction has 110118 states and 157048 transitions. [2024-11-22 02:47:56,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:56,982 INFO L276 IsEmpty]: Start isEmpty. Operand 110118 states and 157048 transitions. [2024-11-22 02:47:57,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-22 02:47:57,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:47:57,425 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:47:57,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 02:47:57,426 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:47:57,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:47:57,426 INFO L85 PathProgramCache]: Analyzing trace with hash 373279712, now seen corresponding path program 1 times [2024-11-22 02:47:57,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:47:57,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173046415] [2024-11-22 02:47:57,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:47:57,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:47:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:47:57,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:47:57,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:47:57,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173046415] [2024-11-22 02:47:57,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173046415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:47:57,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:47:57,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 02:47:57,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825311189] [2024-11-22 02:47:57,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:47:57,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 02:47:57,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:47:57,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 02:47:57,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:47:57,640 INFO L87 Difference]: Start difference. First operand 110118 states and 157048 transitions. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:47:58,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:47:58,747 INFO L93 Difference]: Finished difference Result 255628 states and 368381 transitions. [2024-11-22 02:47:58,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:47:58,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2024-11-22 02:47:58,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:47:59,057 INFO L225 Difference]: With dead ends: 255628 [2024-11-22 02:47:59,057 INFO L226 Difference]: Without dead ends: 223263 [2024-11-22 02:47:59,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-22 02:47:59,106 INFO L432 NwaCegarLoop]: 933 mSDtfsCounter, 3515 mSDsluCounter, 3725 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3515 SdHoareTripleChecker+Valid, 4658 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:47:59,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3515 Valid, 4658 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:47:59,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223263 states. [2024-11-22 02:48:01,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223263 to 147123. [2024-11-22 02:48:02,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147123 states, 147122 states have (on average 1.425857451638776) internal successors, (209775), 147122 states have internal predecessors, (209775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:02,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147123 states to 147123 states and 209775 transitions. [2024-11-22 02:48:02,613 INFO L78 Accepts]: Start accepts. Automaton has 147123 states and 209775 transitions. Word has length 149 [2024-11-22 02:48:02,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:48:02,613 INFO L471 AbstractCegarLoop]: Abstraction has 147123 states and 209775 transitions. [2024-11-22 02:48:02,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:02,613 INFO L276 IsEmpty]: Start isEmpty. Operand 147123 states and 209775 transitions. [2024-11-22 02:48:02,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-22 02:48:02,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:48:02,789 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:48:02,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 02:48:02,790 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:48:02,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:48:02,790 INFO L85 PathProgramCache]: Analyzing trace with hash 226295320, now seen corresponding path program 1 times [2024-11-22 02:48:02,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:48:02,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116447426] [2024-11-22 02:48:02,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:48:02,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:48:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:48:02,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:48:02,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:48:02,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116447426] [2024-11-22 02:48:02,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116447426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:48:02,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:48:02,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:48:02,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168583054] [2024-11-22 02:48:02,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:48:02,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:48:02,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:48:02,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:48:02,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:48:02,862 INFO L87 Difference]: Start difference. First operand 147123 states and 209775 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:03,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:48:03,210 INFO L93 Difference]: Finished difference Result 195136 states and 277778 transitions. [2024-11-22 02:48:03,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:48:03,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2024-11-22 02:48:03,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:48:03,363 INFO L225 Difference]: With dead ends: 195136 [2024-11-22 02:48:03,363 INFO L226 Difference]: Without dead ends: 132421 [2024-11-22 02:48:03,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:48:03,435 INFO L432 NwaCegarLoop]: 877 mSDtfsCounter, 426 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:48:03,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1395 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:48:03,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132421 states. [2024-11-22 02:48:05,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132421 to 132339. [2024-11-22 02:48:05,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132339 states, 132338 states have (on average 1.4151339751243028) internal successors, (187276), 132338 states have internal predecessors, (187276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:05,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132339 states to 132339 states and 187276 transitions. [2024-11-22 02:48:05,727 INFO L78 Accepts]: Start accepts. Automaton has 132339 states and 187276 transitions. Word has length 149 [2024-11-22 02:48:05,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:48:05,727 INFO L471 AbstractCegarLoop]: Abstraction has 132339 states and 187276 transitions. [2024-11-22 02:48:05,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:05,727 INFO L276 IsEmpty]: Start isEmpty. Operand 132339 states and 187276 transitions. [2024-11-22 02:48:05,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-22 02:48:05,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:48:05,881 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:48:05,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 02:48:05,881 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:48:05,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:48:05,881 INFO L85 PathProgramCache]: Analyzing trace with hash -658471719, now seen corresponding path program 1 times [2024-11-22 02:48:05,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:48:05,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498565814] [2024-11-22 02:48:05,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:48:05,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:48:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:48:06,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:48:06,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:48:06,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498565814] [2024-11-22 02:48:06,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498565814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:48:06,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:48:06,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 02:48:06,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790173379] [2024-11-22 02:48:06,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:48:06,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 02:48:06,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:48:06,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 02:48:06,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:48:06,080 INFO L87 Difference]: Start difference. First operand 132339 states and 187276 transitions. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:07,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:48:07,202 INFO L93 Difference]: Finished difference Result 255764 states and 365373 transitions. [2024-11-22 02:48:07,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:48:07,203 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2024-11-22 02:48:07,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:48:07,520 INFO L225 Difference]: With dead ends: 255764 [2024-11-22 02:48:07,520 INFO L226 Difference]: Without dead ends: 226679 [2024-11-22 02:48:07,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-22 02:48:07,610 INFO L432 NwaCegarLoop]: 904 mSDtfsCounter, 3742 mSDsluCounter, 3281 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3742 SdHoareTripleChecker+Valid, 4185 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:48:07,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3742 Valid, 4185 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:48:07,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226679 states. [2024-11-22 02:48:10,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226679 to 164699. [2024-11-22 02:48:11,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164699 states, 164698 states have (on average 1.4154573826033103) internal successors, (233123), 164698 states have internal predecessors, (233123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:11,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164699 states to 164699 states and 233123 transitions. [2024-11-22 02:48:11,818 INFO L78 Accepts]: Start accepts. Automaton has 164699 states and 233123 transitions. Word has length 149 [2024-11-22 02:48:11,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:48:11,818 INFO L471 AbstractCegarLoop]: Abstraction has 164699 states and 233123 transitions. [2024-11-22 02:48:11,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:11,818 INFO L276 IsEmpty]: Start isEmpty. Operand 164699 states and 233123 transitions. [2024-11-22 02:48:11,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-22 02:48:11,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:48:11,962 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:48:11,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 02:48:11,963 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:48:11,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:48:11,963 INFO L85 PathProgramCache]: Analyzing trace with hash -938674746, now seen corresponding path program 1 times [2024-11-22 02:48:11,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:48:11,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393605238] [2024-11-22 02:48:11,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:48:11,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:48:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:48:12,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:48:12,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:48:12,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393605238] [2024-11-22 02:48:12,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393605238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:48:12,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:48:12,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:48:12,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72049717] [2024-11-22 02:48:12,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:48:12,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:48:12,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:48:12,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:48:12,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:48:12,028 INFO L87 Difference]: Start difference. First operand 164699 states and 233123 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:12,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:48:12,469 INFO L93 Difference]: Finished difference Result 212315 states and 300175 transitions. [2024-11-22 02:48:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:48:12,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2024-11-22 02:48:12,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:48:12,635 INFO L225 Difference]: With dead ends: 212315 [2024-11-22 02:48:12,635 INFO L226 Difference]: Without dead ends: 151544 [2024-11-22 02:48:12,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:48:12,707 INFO L432 NwaCegarLoop]: 958 mSDtfsCounter, 407 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:48:12,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1476 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:48:12,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151544 states. [2024-11-22 02:48:14,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151544 to 151497. [2024-11-22 02:48:14,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151497 states, 151496 states have (on average 1.4052318213022126) internal successors, (212887), 151496 states have internal predecessors, (212887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:15,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151497 states to 151497 states and 212887 transitions. [2024-11-22 02:48:15,116 INFO L78 Accepts]: Start accepts. Automaton has 151497 states and 212887 transitions. Word has length 149 [2024-11-22 02:48:15,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:48:15,117 INFO L471 AbstractCegarLoop]: Abstraction has 151497 states and 212887 transitions. [2024-11-22 02:48:15,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:15,117 INFO L276 IsEmpty]: Start isEmpty. Operand 151497 states and 212887 transitions. [2024-11-22 02:48:15,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 02:48:15,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:48:15,757 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:48:15,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 02:48:15,757 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:48:15,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:48:15,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1003898028, now seen corresponding path program 1 times [2024-11-22 02:48:15,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:48:15,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116562903] [2024-11-22 02:48:15,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:48:15,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:48:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:48:15,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:48:15,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:48:15,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116562903] [2024-11-22 02:48:15,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116562903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:48:15,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:48:15,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:48:15,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748271160] [2024-11-22 02:48:15,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:48:15,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:48:15,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:48:15,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:48:15,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:48:15,921 INFO L87 Difference]: Start difference. First operand 151497 states and 212887 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:16,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:48:16,760 INFO L93 Difference]: Finished difference Result 409370 states and 573545 transitions. [2024-11-22 02:48:16,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:48:16,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2024-11-22 02:48:16,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:48:17,099 INFO L225 Difference]: With dead ends: 409370 [2024-11-22 02:48:17,099 INFO L226 Difference]: Without dead ends: 268319 [2024-11-22 02:48:17,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:48:17,227 INFO L432 NwaCegarLoop]: 1053 mSDtfsCounter, 488 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:48:17,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1571 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:48:17,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268319 states. [2024-11-22 02:48:21,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268319 to 268272. [2024-11-22 02:48:21,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268272 states, 268271 states have (on average 1.3891773616976864) internal successors, (372676), 268271 states have internal predecessors, (372676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:22,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268272 states to 268272 states and 372676 transitions. [2024-11-22 02:48:22,846 INFO L78 Accepts]: Start accepts. Automaton has 268272 states and 372676 transitions. Word has length 150 [2024-11-22 02:48:22,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:48:22,847 INFO L471 AbstractCegarLoop]: Abstraction has 268272 states and 372676 transitions. [2024-11-22 02:48:22,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:48:22,847 INFO L276 IsEmpty]: Start isEmpty. Operand 268272 states and 372676 transitions. [2024-11-22 02:48:23,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 02:48:23,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:48:23,188 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:48:23,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 02:48:23,188 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:48:23,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:48:23,189 INFO L85 PathProgramCache]: Analyzing trace with hash -794017273, now seen corresponding path program 1 times [2024-11-22 02:48:23,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:48:23,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601677116] [2024-11-22 02:48:23,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:48:23,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:48:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:48:23,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:48:23,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:48:23,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601677116] [2024-11-22 02:48:23,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601677116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:48:23,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:48:23,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:48:23,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245578868] [2024-11-22 02:48:23,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:48:23,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:48:23,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:48:23,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:48:23,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:48:23,312 INFO L87 Difference]: Start difference. First operand 268272 states and 372676 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)