./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.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 80f9a5324ebd6f7f9b0f4370bb23b9787fd1aa3c807ea310f755bbaf1b53f47a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:35:41,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:35:41,786 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:35:41,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:35:41,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:35:41,830 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:35:41,831 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:35:41,831 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:35:41,832 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:35:41,832 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:35:41,833 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:35:41,833 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:35:41,834 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:35:41,835 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:35:41,835 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:35:41,835 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:35:41,836 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:35:41,836 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:35:41,837 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:35:41,837 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:35:41,837 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:35:41,838 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:35:41,839 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:35:41,839 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:35:41,839 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:35:41,840 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:35:41,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:35:41,840 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:35:41,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:35:41,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:35:41,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:35:41,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:35:41,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:35:41,843 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:35:41,843 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:35:41,845 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:35:41,846 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:35:41,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:35:41,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:35:41,847 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:35:41,847 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:35:41,848 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:35:41,848 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f9a5324ebd6f7f9b0f4370bb23b9787fd1aa3c807ea310f755bbaf1b53f47a [2024-10-14 03:35:42,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:35:42,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:35:42,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:35:42,167 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:35:42,168 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:35:42,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c [2024-10-14 03:35:43,660 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:35:43,917 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:35:43,920 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c [2024-10-14 03:35:43,941 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67cf81c78/0554cc910dce405f9d4b5f0320465355/FLAGd05cdf4f3 [2024-10-14 03:35:44,225 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67cf81c78/0554cc910dce405f9d4b5f0320465355 [2024-10-14 03:35:44,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:35:44,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:35:44,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:35:44,233 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:35:44,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:35:44,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:44,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bca424f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44, skipping insertion in model container [2024-10-14 03:35:44,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:44,292 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:35:44,601 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c[30998,31011] [2024-10-14 03:35:44,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:35:44,618 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:35:44,734 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c[30998,31011] [2024-10-14 03:35:44,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:35:44,758 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:35:44,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44 WrapperNode [2024-10-14 03:35:44,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:35:44,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:35:44,760 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:35:44,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:35:44,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:44,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:44,847 INFO L138 Inliner]: procedures = 23, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 1022 [2024-10-14 03:35:44,847 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:35:44,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:35:44,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:35:44,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:35:44,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:44,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:44,873 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:44,903 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 03:35:44,904 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:44,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:44,931 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:44,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:44,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:44,971 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:44,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:35:44,988 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:35:44,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:35:44,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:35:44,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44" (1/1) ... [2024-10-14 03:35:45,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:35:45,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:35:45,038 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 03:35:45,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 03:35:45,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:35:45,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:35:45,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:35:45,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:35:45,272 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:35:45,274 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:35:46,356 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-10-14 03:35:46,358 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:35:46,467 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:35:46,471 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 03:35:46,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:35:46 BoogieIcfgContainer [2024-10-14 03:35:46,472 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:35:46,474 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:35:46,478 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:35:46,482 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:35:46,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:35:44" (1/3) ... [2024-10-14 03:35:46,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efe06d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:35:46, skipping insertion in model container [2024-10-14 03:35:46,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:44" (2/3) ... [2024-10-14 03:35:46,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efe06d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:35:46, skipping insertion in model container [2024-10-14 03:35:46,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:35:46" (3/3) ... [2024-10-14 03:35:46,487 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c [2024-10-14 03:35:46,511 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:35:46,512 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:35:46,618 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:35:46,627 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;@538813de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:35:46,628 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:35:46,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 295 states, 293 states have (on average 1.8464163822525597) internal successors, (541), 294 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:46,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 03:35:46,651 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:46,652 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] [2024-10-14 03:35:46,653 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:46,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:46,660 INFO L85 PathProgramCache]: Analyzing trace with hash 161010011, now seen corresponding path program 1 times [2024-10-14 03:35:46,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:46,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830157759] [2024-10-14 03:35:46,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:46,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:47,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:47,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:47,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830157759] [2024-10-14 03:35:47,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830157759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:47,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:47,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 03:35:47,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160774274] [2024-10-14 03:35:47,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:47,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 03:35:47,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:47,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 03:35:47,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:35:47,239 INFO L87 Difference]: Start difference. First operand has 295 states, 293 states have (on average 1.8464163822525597) internal successors, (541), 294 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:47,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:47,370 INFO L93 Difference]: Finished difference Result 397 states and 722 transitions. [2024-10-14 03:35:47,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 03:35:47,373 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-14 03:35:47,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:47,391 INFO L225 Difference]: With dead ends: 397 [2024-10-14 03:35:47,392 INFO L226 Difference]: Without dead ends: 293 [2024-10-14 03:35:47,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:35:47,401 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:47,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 534 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:35:47,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-10-14 03:35:47,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-10-14 03:35:47,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 292 states have (on average 1.8356164383561644) internal successors, (536), 292 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:47,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 536 transitions. [2024-10-14 03:35:47,465 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 536 transitions. Word has length 74 [2024-10-14 03:35:47,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:47,466 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 536 transitions. [2024-10-14 03:35:47,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:47,466 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 536 transitions. [2024-10-14 03:35:47,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 03:35:47,469 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:47,469 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] [2024-10-14 03:35:47,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:35:47,470 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:47,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:47,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1644428323, now seen corresponding path program 1 times [2024-10-14 03:35:47,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:47,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793915603] [2024-10-14 03:35:47,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:47,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:47,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:47,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:47,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793915603] [2024-10-14 03:35:47,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793915603] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:47,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:47,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:35:47,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826905691] [2024-10-14 03:35:47,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:47,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:35:47,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:47,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:35:47,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:35:47,846 INFO L87 Difference]: Start difference. First operand 293 states and 536 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:48,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:48,056 INFO L93 Difference]: Finished difference Result 395 states and 715 transitions. [2024-10-14 03:35:48,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:35:48,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-14 03:35:48,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:48,059 INFO L225 Difference]: With dead ends: 395 [2024-10-14 03:35:48,059 INFO L226 Difference]: Without dead ends: 293 [2024-10-14 03:35:48,060 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 [2024-10-14 03:35:48,061 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 0 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:48,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1550 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:35:48,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-10-14 03:35:48,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-10-14 03:35:48,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 292 states have (on average 1.678082191780822) internal successors, (490), 292 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:48,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 490 transitions. [2024-10-14 03:35:48,077 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 490 transitions. Word has length 74 [2024-10-14 03:35:48,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:48,077 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 490 transitions. [2024-10-14 03:35:48,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:48,078 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 490 transitions. [2024-10-14 03:35:48,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-14 03:35:48,082 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:48,083 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] [2024-10-14 03:35:48,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:35:48,083 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:48,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:48,084 INFO L85 PathProgramCache]: Analyzing trace with hash 427323051, now seen corresponding path program 1 times [2024-10-14 03:35:48,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:48,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922776582] [2024-10-14 03:35:48,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:48,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:48,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:48,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:48,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922776582] [2024-10-14 03:35:48,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922776582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:48,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:48,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:35:48,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403599368] [2024-10-14 03:35:48,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:48,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:35:48,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:48,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:35:48,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:48,385 INFO L87 Difference]: Start difference. First operand 293 states and 490 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:48,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:48,496 INFO L93 Difference]: Finished difference Result 479 states and 820 transitions. [2024-10-14 03:35:48,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:35:48,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-10-14 03:35:48,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:48,499 INFO L225 Difference]: With dead ends: 479 [2024-10-14 03:35:48,499 INFO L226 Difference]: Without dead ends: 380 [2024-10-14 03:35:48,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:48,501 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 146 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:48,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 918 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:35:48,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-10-14 03:35:48,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2024-10-14 03:35:48,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 377 states have (on average 1.6923076923076923) internal successors, (638), 377 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:48,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 638 transitions. [2024-10-14 03:35:48,516 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 638 transitions. Word has length 119 [2024-10-14 03:35:48,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:48,517 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 638 transitions. [2024-10-14 03:35:48,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:48,517 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 638 transitions. [2024-10-14 03:35:48,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 03:35:48,522 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:48,522 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] [2024-10-14 03:35:48,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:35:48,523 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:48,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:48,523 INFO L85 PathProgramCache]: Analyzing trace with hash 694490375, now seen corresponding path program 1 times [2024-10-14 03:35:48,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:48,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260001046] [2024-10-14 03:35:48,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:48,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:48,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:48,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:48,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260001046] [2024-10-14 03:35:48,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260001046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:48,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:48,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:35:48,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742295916] [2024-10-14 03:35:48,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:48,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:35:48,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:48,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:35:48,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:48,803 INFO L87 Difference]: Start difference. First operand 378 states and 638 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:48,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:48,906 INFO L93 Difference]: Finished difference Result 726 states and 1250 transitions. [2024-10-14 03:35:48,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:35:48,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-10-14 03:35:48,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:48,912 INFO L225 Difference]: With dead ends: 726 [2024-10-14 03:35:48,912 INFO L226 Difference]: Without dead ends: 542 [2024-10-14 03:35:48,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:48,917 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 147 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:48,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 930 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:35:48,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-10-14 03:35:48,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 540. [2024-10-14 03:35:48,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 539 states have (on average 1.712430426716141) internal successors, (923), 539 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:48,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 923 transitions. [2024-10-14 03:35:48,951 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 923 transitions. Word has length 122 [2024-10-14 03:35:48,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:48,951 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 923 transitions. [2024-10-14 03:35:48,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:48,952 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 923 transitions. [2024-10-14 03:35:48,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:35:48,958 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:48,958 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] [2024-10-14 03:35:48,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:35:48,959 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:48,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:48,960 INFO L85 PathProgramCache]: Analyzing trace with hash -668806184, now seen corresponding path program 1 times [2024-10-14 03:35:48,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:48,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602362325] [2024-10-14 03:35:48,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:48,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:49,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:49,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:49,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602362325] [2024-10-14 03:35:49,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602362325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:49,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:49,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:35:49,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472783036] [2024-10-14 03:35:49,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:49,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:35:49,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:49,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:35:49,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:49,161 INFO L87 Difference]: Start difference. First operand 540 states and 923 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:49,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:49,250 INFO L93 Difference]: Finished difference Result 1192 states and 2069 transitions. [2024-10-14 03:35:49,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:35:49,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-10-14 03:35:49,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:49,256 INFO L225 Difference]: With dead ends: 1192 [2024-10-14 03:35:49,257 INFO L226 Difference]: Without dead ends: 846 [2024-10-14 03:35:49,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:49,259 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 140 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:49,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 931 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:35:49,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2024-10-14 03:35:49,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 844. [2024-10-14 03:35:49,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 843 states have (on average 1.7259786476868328) internal successors, (1455), 843 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1455 transitions. [2024-10-14 03:35:49,288 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1455 transitions. Word has length 125 [2024-10-14 03:35:49,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:49,289 INFO L471 AbstractCegarLoop]: Abstraction has 844 states and 1455 transitions. [2024-10-14 03:35:49,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:49,289 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1455 transitions. [2024-10-14 03:35:49,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-14 03:35:49,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:49,292 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] [2024-10-14 03:35:49,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:35:49,292 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:49,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:49,293 INFO L85 PathProgramCache]: Analyzing trace with hash -590083948, now seen corresponding path program 1 times [2024-10-14 03:35:49,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:49,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555147679] [2024-10-14 03:35:49,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:49,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:49,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:49,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:49,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555147679] [2024-10-14 03:35:49,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555147679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:49,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:49,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:35:49,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994588439] [2024-10-14 03:35:49,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:49,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:35:49,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:49,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:35:49,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:49,469 INFO L87 Difference]: Start difference. First operand 844 states and 1455 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:49,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:49,543 INFO L93 Difference]: Finished difference Result 2064 states and 3593 transitions. [2024-10-14 03:35:49,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:35:49,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-10-14 03:35:49,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:49,553 INFO L225 Difference]: With dead ends: 2064 [2024-10-14 03:35:49,553 INFO L226 Difference]: Without dead ends: 1414 [2024-10-14 03:35:49,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:49,556 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 133 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:49,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 932 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:35:49,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2024-10-14 03:35:49,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1412. [2024-10-14 03:35:49,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 1.7313961729270022) internal successors, (2443), 1411 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:49,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 2443 transitions. [2024-10-14 03:35:49,602 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 2443 transitions. Word has length 128 [2024-10-14 03:35:49,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:49,603 INFO L471 AbstractCegarLoop]: Abstraction has 1412 states and 2443 transitions. [2024-10-14 03:35:49,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:49,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 2443 transitions. [2024-10-14 03:35:49,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 03:35:49,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:49,608 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] [2024-10-14 03:35:49,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:35:49,609 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:49,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:49,609 INFO L85 PathProgramCache]: Analyzing trace with hash -897181179, now seen corresponding path program 1 times [2024-10-14 03:35:49,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:49,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848718031] [2024-10-14 03:35:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:49,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:49,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:49,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:49,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848718031] [2024-10-14 03:35:49,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848718031] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:49,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:49,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:35:49,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196606955] [2024-10-14 03:35:49,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:49,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:35:49,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:49,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:35:49,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:35:49,892 INFO L87 Difference]: Start difference. First operand 1412 states and 2443 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:50,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:50,312 INFO L93 Difference]: Finished difference Result 7148 states and 12563 transitions. [2024-10-14 03:35:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:35:50,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2024-10-14 03:35:50,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:50,337 INFO L225 Difference]: With dead ends: 7148 [2024-10-14 03:35:50,337 INFO L226 Difference]: Without dead ends: 5930 [2024-10-14 03:35:50,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:35:50,342 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 1386 mSDsluCounter, 3328 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 3807 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:50,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 3807 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:35:50,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5930 states. [2024-10-14 03:35:50,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5930 to 2545. [2024-10-14 03:35:50,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 2544 states have (on average 1.737814465408805) internal successors, (4421), 2544 states have internal predecessors, (4421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:50,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 4421 transitions. [2024-10-14 03:35:50,459 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 4421 transitions. Word has length 131 [2024-10-14 03:35:50,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:50,459 INFO L471 AbstractCegarLoop]: Abstraction has 2545 states and 4421 transitions. [2024-10-14 03:35:50,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:50,460 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 4421 transitions. [2024-10-14 03:35:50,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-14 03:35:50,462 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:50,462 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] [2024-10-14 03:35:50,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:35:50,463 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:50,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:50,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2111016382, now seen corresponding path program 1 times [2024-10-14 03:35:50,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:50,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728467422] [2024-10-14 03:35:50,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:50,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:50,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:50,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:50,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728467422] [2024-10-14 03:35:50,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728467422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:50,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:50,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:35:50,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715901816] [2024-10-14 03:35:50,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:50,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:35:50,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:50,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:35:50,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:35:50,647 INFO L87 Difference]: Start difference. First operand 2545 states and 4421 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:50,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:50,861 INFO L93 Difference]: Finished difference Result 7390 states and 12950 transitions. [2024-10-14 03:35:50,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:35:50,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-10-14 03:35:50,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:50,881 INFO L225 Difference]: With dead ends: 7390 [2024-10-14 03:35:50,881 INFO L226 Difference]: Without dead ends: 5039 [2024-10-14 03:35:50,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:35:50,891 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 506 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:50,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1561 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:35:50,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5039 states. [2024-10-14 03:35:50,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5039 to 3775. [2024-10-14 03:35:51,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3775 states, 3774 states have (on average 1.741123476417594) internal successors, (6571), 3774 states have internal predecessors, (6571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:51,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3775 states to 3775 states and 6571 transitions. [2024-10-14 03:35:51,022 INFO L78 Accepts]: Start accepts. Automaton has 3775 states and 6571 transitions. Word has length 132 [2024-10-14 03:35:51,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:51,022 INFO L471 AbstractCegarLoop]: Abstraction has 3775 states and 6571 transitions. [2024-10-14 03:35:51,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:51,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3775 states and 6571 transitions. [2024-10-14 03:35:51,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-14 03:35:51,027 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:51,027 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] [2024-10-14 03:35:51,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:35:51,027 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:51,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:51,028 INFO L85 PathProgramCache]: Analyzing trace with hash -162840936, now seen corresponding path program 1 times [2024-10-14 03:35:51,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:51,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546816321] [2024-10-14 03:35:51,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:51,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:51,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:51,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546816321] [2024-10-14 03:35:51,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546816321] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:51,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:51,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:35:51,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070999281] [2024-10-14 03:35:51,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:51,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:35:51,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:51,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:35:51,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:51,160 INFO L87 Difference]: Start difference. First operand 3775 states and 6571 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:51,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:51,269 INFO L93 Difference]: Finished difference Result 7313 states and 12742 transitions. [2024-10-14 03:35:51,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:35:51,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-10-14 03:35:51,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:51,290 INFO L225 Difference]: With dead ends: 7313 [2024-10-14 03:35:51,290 INFO L226 Difference]: Without dead ends: 5343 [2024-10-14 03:35:51,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:51,296 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 148 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:51,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1050 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:35:51,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5343 states. [2024-10-14 03:35:51,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5343 to 5341. [2024-10-14 03:35:51,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 5340 states have (on average 1.7333333333333334) internal successors, (9256), 5340 states have internal predecessors, (9256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:51,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 9256 transitions. [2024-10-14 03:35:51,498 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 9256 transitions. Word has length 133 [2024-10-14 03:35:51,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:51,499 INFO L471 AbstractCegarLoop]: Abstraction has 5341 states and 9256 transitions. [2024-10-14 03:35:51,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:51,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 9256 transitions. [2024-10-14 03:35:51,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-14 03:35:51,501 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:51,501 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:35:51,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:35:51,502 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:51,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:51,502 INFO L85 PathProgramCache]: Analyzing trace with hash -163285454, now seen corresponding path program 1 times [2024-10-14 03:35:51,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:51,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189861311] [2024-10-14 03:35:51,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:51,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:51,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:51,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:51,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189861311] [2024-10-14 03:35:51,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189861311] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:51,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:51,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:35:51,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273777060] [2024-10-14 03:35:51,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:51,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:35:51,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:51,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:35:51,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:51,609 INFO L87 Difference]: Start difference. First operand 5341 states and 9256 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:51,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:51,751 INFO L93 Difference]: Finished difference Result 10329 states and 17918 transitions. [2024-10-14 03:35:51,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:35:51,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-10-14 03:35:51,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:51,786 INFO L225 Difference]: With dead ends: 10329 [2024-10-14 03:35:51,786 INFO L226 Difference]: Without dead ends: 7531 [2024-10-14 03:35:51,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:51,794 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 141 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:51,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1035 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:35:51,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7531 states. [2024-10-14 03:35:51,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7531 to 7529. [2024-10-14 03:35:52,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7529 states, 7528 states have (on average 1.7250265674814027) internal successors, (12986), 7528 states have internal predecessors, (12986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:52,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7529 states to 7529 states and 12986 transitions. [2024-10-14 03:35:52,046 INFO L78 Accepts]: Start accepts. Automaton has 7529 states and 12986 transitions. Word has length 133 [2024-10-14 03:35:52,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:52,047 INFO L471 AbstractCegarLoop]: Abstraction has 7529 states and 12986 transitions. [2024-10-14 03:35:52,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 7529 states and 12986 transitions. [2024-10-14 03:35:52,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-14 03:35:52,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:52,056 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] [2024-10-14 03:35:52,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:35:52,057 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:52,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:52,057 INFO L85 PathProgramCache]: Analyzing trace with hash 929249240, now seen corresponding path program 1 times [2024-10-14 03:35:52,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:52,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037627246] [2024-10-14 03:35:52,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:52,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:52,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:52,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:52,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037627246] [2024-10-14 03:35:52,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037627246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:52,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:52,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:35:52,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504069772] [2024-10-14 03:35:52,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:52,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:35:52,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:52,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:35:52,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:52,182 INFO L87 Difference]: Start difference. First operand 7529 states and 12986 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:52,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:52,358 INFO L93 Difference]: Finished difference Result 14521 states and 25062 transitions. [2024-10-14 03:35:52,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:35:52,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-10-14 03:35:52,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:52,431 INFO L225 Difference]: With dead ends: 14521 [2024-10-14 03:35:52,431 INFO L226 Difference]: Without dead ends: 10559 [2024-10-14 03:35:52,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:52,438 INFO L432 NwaCegarLoop]: 558 mSDtfsCounter, 134 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:52,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1020 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:35:52,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10559 states. [2024-10-14 03:35:52,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10559 to 10557. [2024-10-14 03:35:52,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10557 states, 10556 states have (on average 1.715422508525957) internal successors, (18108), 10556 states have internal predecessors, (18108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:52,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10557 states to 10557 states and 18108 transitions. [2024-10-14 03:35:52,719 INFO L78 Accepts]: Start accepts. Automaton has 10557 states and 18108 transitions. Word has length 133 [2024-10-14 03:35:52,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:52,720 INFO L471 AbstractCegarLoop]: Abstraction has 10557 states and 18108 transitions. [2024-10-14 03:35:52,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:52,720 INFO L276 IsEmpty]: Start isEmpty. Operand 10557 states and 18108 transitions. [2024-10-14 03:35:52,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-14 03:35:52,721 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:52,722 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] [2024-10-14 03:35:52,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:35:52,722 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:52,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:52,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1079750258, now seen corresponding path program 1 times [2024-10-14 03:35:52,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:52,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126101043] [2024-10-14 03:35:52,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:52,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:52,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:52,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:52,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126101043] [2024-10-14 03:35:52,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126101043] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:52,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:52,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:35:52,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846780672] [2024-10-14 03:35:52,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:52,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:35:52,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:52,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:35:52,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:35:52,905 INFO L87 Difference]: Start difference. First operand 10557 states and 18108 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:53,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:53,294 INFO L93 Difference]: Finished difference Result 34234 states and 58819 transitions. [2024-10-14 03:35:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:35:53,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-10-14 03:35:53,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:53,352 INFO L225 Difference]: With dead ends: 34234 [2024-10-14 03:35:53,353 INFO L226 Difference]: Without dead ends: 23981 [2024-10-14 03:35:53,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:35:53,375 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 505 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:53,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1557 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:35:53,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23981 states. [2024-10-14 03:35:53,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23981 to 17215. [2024-10-14 03:35:53,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17215 states, 17214 states have (on average 1.707447426513303) internal successors, (29392), 17214 states have internal predecessors, (29392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:54,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17215 states to 17215 states and 29392 transitions. [2024-10-14 03:35:54,035 INFO L78 Accepts]: Start accepts. Automaton has 17215 states and 29392 transitions. Word has length 133 [2024-10-14 03:35:54,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:54,035 INFO L471 AbstractCegarLoop]: Abstraction has 17215 states and 29392 transitions. [2024-10-14 03:35:54,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:54,036 INFO L276 IsEmpty]: Start isEmpty. Operand 17215 states and 29392 transitions. [2024-10-14 03:35:54,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-14 03:35:54,037 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:54,037 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] [2024-10-14 03:35:54,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:35:54,038 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:54,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:54,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1380669298, now seen corresponding path program 1 times [2024-10-14 03:35:54,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:54,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827682439] [2024-10-14 03:35:54,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:54,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:54,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:54,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827682439] [2024-10-14 03:35:54,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827682439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:54,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:54,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:35:54,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763412349] [2024-10-14 03:35:54,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:54,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:35:54,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:54,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:35:54,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:54,161 INFO L87 Difference]: Start difference. First operand 17215 states and 29392 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:54,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:54,601 INFO L93 Difference]: Finished difference Result 38358 states and 65795 transitions. [2024-10-14 03:35:54,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:35:54,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-10-14 03:35:54,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:54,670 INFO L225 Difference]: With dead ends: 38358 [2024-10-14 03:35:54,671 INFO L226 Difference]: Without dead ends: 26159 [2024-10-14 03:35:54,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:54,694 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 155 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:54,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1075 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:35:54,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26159 states. [2024-10-14 03:35:55,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26159 to 26157. [2024-10-14 03:35:55,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26157 states, 26156 states have (on average 1.6997629606973543) internal successors, (44459), 26156 states have internal predecessors, (44459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:55,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26157 states to 26157 states and 44459 transitions. [2024-10-14 03:35:55,660 INFO L78 Accepts]: Start accepts. Automaton has 26157 states and 44459 transitions. Word has length 133 [2024-10-14 03:35:55,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:55,661 INFO L471 AbstractCegarLoop]: Abstraction has 26157 states and 44459 transitions. [2024-10-14 03:35:55,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:55,661 INFO L276 IsEmpty]: Start isEmpty. Operand 26157 states and 44459 transitions. [2024-10-14 03:35:55,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 03:35:55,662 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:55,663 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] [2024-10-14 03:35:55,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:35:55,663 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:55,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:55,664 INFO L85 PathProgramCache]: Analyzing trace with hash 830180267, now seen corresponding path program 1 times [2024-10-14 03:35:55,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:55,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227122659] [2024-10-14 03:35:55,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:55,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:55,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:55,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:55,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227122659] [2024-10-14 03:35:55,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227122659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:55,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:55,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:35:55,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678810895] [2024-10-14 03:35:55,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:55,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:35:55,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:55,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:35:55,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:35:55,987 INFO L87 Difference]: Start difference. First operand 26157 states and 44459 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:56,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:56,967 INFO L93 Difference]: Finished difference Result 85492 states and 145420 transitions. [2024-10-14 03:35:56,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:35:56,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-10-14 03:35:56,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:57,165 INFO L225 Difference]: With dead ends: 85492 [2024-10-14 03:35:57,165 INFO L226 Difference]: Without dead ends: 59561 [2024-10-14 03:35:57,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:35:57,229 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 503 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:57,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1559 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:35:57,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59561 states. [2024-10-14 03:35:58,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59561 to 42716. [2024-10-14 03:35:58,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42716 states, 42715 states have (on average 1.6899449841975887) internal successors, (72186), 42715 states have internal predecessors, (72186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:58,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42716 states to 42716 states and 72186 transitions. [2024-10-14 03:35:58,515 INFO L78 Accepts]: Start accepts. Automaton has 42716 states and 72186 transitions. Word has length 134 [2024-10-14 03:35:58,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:58,516 INFO L471 AbstractCegarLoop]: Abstraction has 42716 states and 72186 transitions. [2024-10-14 03:35:58,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:58,516 INFO L276 IsEmpty]: Start isEmpty. Operand 42716 states and 72186 transitions. [2024-10-14 03:35:58,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 03:35:58,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:58,518 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] [2024-10-14 03:35:58,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:35:58,518 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:58,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:58,519 INFO L85 PathProgramCache]: Analyzing trace with hash -86063849, now seen corresponding path program 1 times [2024-10-14 03:35:58,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:58,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073268038] [2024-10-14 03:35:58,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:58,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:58,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:58,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:58,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073268038] [2024-10-14 03:35:58,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073268038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:58,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:58,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:35:58,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879423126] [2024-10-14 03:35:58,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:58,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:35:58,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:58,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:35:58,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:35:58,888 INFO L87 Difference]: Start difference. First operand 42716 states and 72186 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:00,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:36:00,301 INFO L93 Difference]: Finished difference Result 138054 states and 233478 transitions. [2024-10-14 03:36:00,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:36:00,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-10-14 03:36:00,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:36:00,583 INFO L225 Difference]: With dead ends: 138054 [2024-10-14 03:36:00,583 INFO L226 Difference]: Without dead ends: 95564 [2024-10-14 03:36:00,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:36:00,648 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 501 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:36:00,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 1561 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:36:00,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95564 states. [2024-10-14 03:36:02,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95564 to 68915. [2024-10-14 03:36:02,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68915 states, 68914 states have (on average 1.680427779551325) internal successors, (115805), 68914 states have internal predecessors, (115805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:02,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68915 states to 68915 states and 115805 transitions. [2024-10-14 03:36:02,918 INFO L78 Accepts]: Start accepts. Automaton has 68915 states and 115805 transitions. Word has length 135 [2024-10-14 03:36:02,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:36:02,919 INFO L471 AbstractCegarLoop]: Abstraction has 68915 states and 115805 transitions. [2024-10-14 03:36:02,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:02,919 INFO L276 IsEmpty]: Start isEmpty. Operand 68915 states and 115805 transitions. [2024-10-14 03:36:02,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 03:36:02,920 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:36:02,921 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] [2024-10-14 03:36:02,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:36:02,921 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:36:02,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:36:02,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1714684095, now seen corresponding path program 1 times [2024-10-14 03:36:02,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:36:02,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575770390] [2024-10-14 03:36:02,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:36:02,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:36:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:36:03,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:36:03,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:36:03,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575770390] [2024-10-14 03:36:03,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575770390] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:36:03,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:36:03,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:36:03,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310571172] [2024-10-14 03:36:03,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:36:03,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:36:03,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:36:03,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:36:03,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:36:03,293 INFO L87 Difference]: Start difference. First operand 68915 states and 115805 transitions. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:04,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:36:04,377 INFO L93 Difference]: Finished difference Result 137606 states and 231247 transitions. [2024-10-14 03:36:04,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:36:04,377 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-10-14 03:36:04,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:36:04,512 INFO L225 Difference]: With dead ends: 137606 [2024-10-14 03:36:04,512 INFO L226 Difference]: Without dead ends: 68917 [2024-10-14 03:36:04,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:36:04,856 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 271 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:36:04,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1834 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:36:04,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68917 states. [2024-10-14 03:36:06,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68917 to 68915. [2024-10-14 03:36:06,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68915 states, 68914 states have (on average 1.671358504803088) internal successors, (115180), 68914 states have internal predecessors, (115180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:06,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68915 states to 68915 states and 115180 transitions. [2024-10-14 03:36:06,323 INFO L78 Accepts]: Start accepts. Automaton has 68915 states and 115180 transitions. Word has length 137 [2024-10-14 03:36:06,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:36:06,324 INFO L471 AbstractCegarLoop]: Abstraction has 68915 states and 115180 transitions. [2024-10-14 03:36:06,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:06,324 INFO L276 IsEmpty]: Start isEmpty. Operand 68915 states and 115180 transitions. [2024-10-14 03:36:06,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-14 03:36:06,325 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:36:06,326 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:36:06,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:36:06,326 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:36:06,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:36:06,327 INFO L85 PathProgramCache]: Analyzing trace with hash 611550920, now seen corresponding path program 1 times [2024-10-14 03:36:06,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:36:06,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971922209] [2024-10-14 03:36:06,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:36:06,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:36:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:36:06,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:36:06,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:36:06,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971922209] [2024-10-14 03:36:06,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971922209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:36:06,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:36:06,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:36:06,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608295561] [2024-10-14 03:36:06,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:36:06,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:36:06,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:36:06,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:36:06,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:36:06,684 INFO L87 Difference]: Start difference. First operand 68915 states and 115180 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 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) [2024-10-14 03:36:08,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:36:08,419 INFO L93 Difference]: Finished difference Result 201524 states and 337235 transitions. [2024-10-14 03:36:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:36:08,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 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 [2024-10-14 03:36:08,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:36:08,716 INFO L225 Difference]: With dead ends: 201524 [2024-10-14 03:36:08,717 INFO L226 Difference]: Without dead ends: 132835 [2024-10-14 03:36:08,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:36:08,791 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 135 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 2302 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:36:08,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 2302 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:36:08,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132835 states. [2024-10-14 03:36:11,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132835 to 132833. [2024-10-14 03:36:11,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132833 states, 132832 states have (on average 1.6592462659600096) internal successors, (220401), 132832 states have internal predecessors, (220401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:12,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132833 states to 132833 states and 220401 transitions. [2024-10-14 03:36:12,189 INFO L78 Accepts]: Start accepts. Automaton has 132833 states and 220401 transitions. Word has length 140 [2024-10-14 03:36:12,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:36:12,190 INFO L471 AbstractCegarLoop]: Abstraction has 132833 states and 220401 transitions. [2024-10-14 03:36:12,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 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) [2024-10-14 03:36:12,190 INFO L276 IsEmpty]: Start isEmpty. Operand 132833 states and 220401 transitions. [2024-10-14 03:36:12,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-14 03:36:12,192 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:36:12,192 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] [2024-10-14 03:36:12,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:36:12,192 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:36:12,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:36:12,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1763659318, now seen corresponding path program 1 times [2024-10-14 03:36:12,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:36:12,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647850189] [2024-10-14 03:36:12,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:36:12,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:36:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:36:12,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:36:12,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:36:12,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647850189] [2024-10-14 03:36:12,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647850189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:36:12,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:36:12,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:36:12,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59716410] [2024-10-14 03:36:12,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:36:12,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:36:12,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:36:12,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:36:12,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:36:12,585 INFO L87 Difference]: Start difference. First operand 132833 states and 220401 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:14,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:36:14,359 INFO L93 Difference]: Finished difference Result 136707 states and 226210 transitions. [2024-10-14 03:36:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:36:14,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-10-14 03:36:14,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:36:14,573 INFO L225 Difference]: With dead ends: 136707 [2024-10-14 03:36:14,573 INFO L226 Difference]: Without dead ends: 136705 [2024-10-14 03:36:14,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:36:14,601 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 0 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:36:14,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2409 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:36:14,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136705 states. [2024-10-14 03:36:16,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136705 to 136705. [2024-10-14 03:36:17,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136705 states, 136704 states have (on average 1.6403762874531835) internal successors, (224246), 136704 states have internal predecessors, (224246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:17,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136705 states to 136705 states and 224246 transitions. [2024-10-14 03:36:17,352 INFO L78 Accepts]: Start accepts. Automaton has 136705 states and 224246 transitions. Word has length 141 [2024-10-14 03:36:17,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:36:17,353 INFO L471 AbstractCegarLoop]: Abstraction has 136705 states and 224246 transitions. [2024-10-14 03:36:17,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:17,353 INFO L276 IsEmpty]: Start isEmpty. Operand 136705 states and 224246 transitions. [2024-10-14 03:36:17,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-14 03:36:17,360 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:36:17,360 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:36:17,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 03:36:17,360 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:36:17,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:36:17,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1322577594, now seen corresponding path program 1 times [2024-10-14 03:36:17,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:36:17,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152884453] [2024-10-14 03:36:17,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:36:17,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:36:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:36:17,599 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-14 03:36:17,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:36:17,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152884453] [2024-10-14 03:36:17,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152884453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:36:17,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:36:17,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:36:17,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687151282] [2024-10-14 03:36:17,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:36:17,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:36:17,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:36:17,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:36:17,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:36:17,603 INFO L87 Difference]: Start difference. First operand 136705 states and 224246 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:21,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:36:21,319 INFO L93 Difference]: Finished difference Result 375707 states and 617679 transitions. [2024-10-14 03:36:21,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:36:21,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 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 176 [2024-10-14 03:36:21,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:36:21,959 INFO L225 Difference]: With dead ends: 375707 [2024-10-14 03:36:21,959 INFO L226 Difference]: Without dead ends: 315055 [2024-10-14 03:36:22,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:36:22,071 INFO L432 NwaCegarLoop]: 649 mSDtfsCounter, 1017 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:36:22,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 2808 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:36:22,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315055 states. [2024-10-14 03:36:26,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315055 to 220333. [2024-10-14 03:36:27,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220333 states, 220332 states have (on average 1.6372111177677324) internal successors, (360730), 220332 states have internal predecessors, (360730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220333 states to 220333 states and 360730 transitions. [2024-10-14 03:36:28,288 INFO L78 Accepts]: Start accepts. Automaton has 220333 states and 360730 transitions. Word has length 176 [2024-10-14 03:36:28,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:36:28,289 INFO L471 AbstractCegarLoop]: Abstraction has 220333 states and 360730 transitions. [2024-10-14 03:36:28,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:28,289 INFO L276 IsEmpty]: Start isEmpty. Operand 220333 states and 360730 transitions. [2024-10-14 03:36:28,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-14 03:36:28,295 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:36:28,296 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:36:28,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 03:36:28,296 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:36:28,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:36:28,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1322133076, now seen corresponding path program 1 times [2024-10-14 03:36:28,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:36:28,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331776105] [2024-10-14 03:36:28,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:36:28,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:36:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:36:28,589 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 03:36:28,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:36:28,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331776105] [2024-10-14 03:36:28,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331776105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:36:28,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:36:28,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:36:28,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636595430] [2024-10-14 03:36:28,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:36:28,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:36:28,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:36:28,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:36:28,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:36:28,592 INFO L87 Difference]: Start difference. First operand 220333 states and 360730 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:36:32,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:36:32,298 INFO L93 Difference]: Finished difference Result 414715 states and 681915 transitions. [2024-10-14 03:36:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:36:32,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 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 176 [2024-10-14 03:36:32,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:36:33,059 INFO L225 Difference]: With dead ends: 414715 [2024-10-14 03:36:33,059 INFO L226 Difference]: Without dead ends: 354063 [2024-10-14 03:36:33,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:36:33,196 INFO L432 NwaCegarLoop]: 646 mSDtfsCounter, 1086 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:36:33,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 2392 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:36:33,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354063 states. [2024-10-14 03:36:39,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354063 to 298771. [2024-10-14 03:36:39,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298771 states, 298770 states have (on average 1.637480336044449) internal successors, (489230), 298770 states have internal predecessors, (489230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)