./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0df39af5bb0da8e3087f1622629197ff07999529140b31d9eb8577cc8820a051 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:51:16,697 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:51:16,762 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:51:16,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:51:16,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:51:16,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:51:16,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:51:16,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:51:16,816 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:51:16,817 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:51:16,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:51:16,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:51:16,819 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:51:16,822 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:51:16,822 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:51:16,823 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:51:16,823 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:51:16,823 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:51:16,823 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:51:16,824 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:51:16,824 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:51:16,824 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:51:16,824 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:51:16,824 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:51:16,825 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:51:16,825 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:51:16,825 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:51:16,825 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:51:16,825 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:51:16,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:51:16,826 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:51:16,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:51:16,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:51:16,826 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:51:16,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:51:16,827 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:51:16,827 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:51:16,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:51:16,829 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:51:16,829 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:51:16,829 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:51:16,830 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:51:16,830 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0df39af5bb0da8e3087f1622629197ff07999529140b31d9eb8577cc8820a051 [2024-10-14 03:51:17,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:51:17,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:51:17,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:51:17,171 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:51:17,172 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:51:17,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-14 03:51:18,590 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:51:18,884 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:51:18,885 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-14 03:51:18,908 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e9c40676/6cf7583f1cdb4a2881c30fac7a69aaf6/FLAG165bb6091 [2024-10-14 03:51:18,926 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e9c40676/6cf7583f1cdb4a2881c30fac7a69aaf6 [2024-10-14 03:51:18,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:51:18,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:51:18,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:51:18,934 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:51:18,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:51:18,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:51:18" (1/1) ... [2024-10-14 03:51:18,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56468adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:18, skipping insertion in model container [2024-10-14 03:51:18,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:51:18" (1/1) ... [2024-10-14 03:51:19,001 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:51:19,229 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7105,7118] [2024-10-14 03:51:19,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:51:19,306 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:51:19,379 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7105,7118] [2024-10-14 03:51:19,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:51:19,444 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:51:19,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19 WrapperNode [2024-10-14 03:51:19,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:51:19,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:51:19,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:51:19,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:51:19,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19" (1/1) ... [2024-10-14 03:51:19,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19" (1/1) ... [2024-10-14 03:51:19,501 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 721 [2024-10-14 03:51:19,502 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:51:19,503 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:51:19,503 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:51:19,503 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:51:19,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19" (1/1) ... [2024-10-14 03:51:19,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19" (1/1) ... [2024-10-14 03:51:19,524 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19" (1/1) ... [2024-10-14 03:51:19,545 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 03:51:19,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19" (1/1) ... [2024-10-14 03:51:19,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19" (1/1) ... [2024-10-14 03:51:19,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19" (1/1) ... [2024-10-14 03:51:19,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19" (1/1) ... [2024-10-14 03:51:19,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19" (1/1) ... [2024-10-14 03:51:19,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19" (1/1) ... [2024-10-14 03:51:19,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:51:19,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:51:19,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:51:19,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:51:19,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19" (1/1) ... [2024-10-14 03:51:19,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:51:19,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:51:19,624 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 03:51:19,627 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 03:51:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:51:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:51:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:51:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:51:19,850 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:51:19,852 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:51:20,552 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-10-14 03:51:20,556 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:51:20,610 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:51:20,611 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 03:51:20,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:51:20 BoogieIcfgContainer [2024-10-14 03:51:20,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:51:20,613 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:51:20,614 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:51:20,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:51:20,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:51:18" (1/3) ... [2024-10-14 03:51:20,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e144e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:51:20, skipping insertion in model container [2024-10-14 03:51:20,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:19" (2/3) ... [2024-10-14 03:51:20,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e144e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:51:20, skipping insertion in model container [2024-10-14 03:51:20,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:51:20" (3/3) ... [2024-10-14 03:51:20,619 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-14 03:51:20,638 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:51:20,638 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:51:20,730 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:51:20,739 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;@c8c328b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:51:20,739 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:51:20,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 175 states have (on average 1.7257142857142858) internal successors, (302), 176 states have internal predecessors, (302), 0 states have call successors, (0), 0 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 03:51:20,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 03:51:20,757 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:20,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:20,759 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:20,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:20,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1323163456, now seen corresponding path program 1 times [2024-10-14 03:51:20,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:20,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748305406] [2024-10-14 03:51:20,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:20,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:21,476 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 03:51:21,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:21,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748305406] [2024-10-14 03:51:21,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748305406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:21,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:21,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:51:21,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246574782] [2024-10-14 03:51:21,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:21,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:51:21,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:21,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:51:21,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:51:21,512 INFO L87 Difference]: Start difference. First operand has 177 states, 175 states have (on average 1.7257142857142858) internal successors, (302), 176 states have internal predecessors, (302), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:21,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:21,748 INFO L93 Difference]: Finished difference Result 632 states and 1027 transitions. [2024-10-14 03:51:21,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:51:21,751 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-10-14 03:51:21,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:21,773 INFO L225 Difference]: With dead ends: 632 [2024-10-14 03:51:21,773 INFO L226 Difference]: Without dead ends: 539 [2024-10-14 03:51:21,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:51:21,783 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 1594 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:21,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 1095 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:51:21,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-10-14 03:51:21,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 273. [2024-10-14 03:51:21,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 272 states have (on average 1.5147058823529411) internal successors, (412), 272 states have internal predecessors, (412), 0 states have call successors, (0), 0 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 03:51:21,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 412 transitions. [2024-10-14 03:51:21,865 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 412 transitions. Word has length 63 [2024-10-14 03:51:21,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:21,868 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 412 transitions. [2024-10-14 03:51:21,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:21,868 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 412 transitions. [2024-10-14 03:51:21,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 03:51:21,871 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:21,871 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] [2024-10-14 03:51:21,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:51:21,872 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:21,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:21,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1651716700, now seen corresponding path program 1 times [2024-10-14 03:51:21,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:21,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223979017] [2024-10-14 03:51:21,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:21,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:22,167 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 03:51:22,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:22,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223979017] [2024-10-14 03:51:22,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223979017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:22,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:22,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:51:22,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434705698] [2024-10-14 03:51:22,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:22,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:51:22,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:22,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:51:22,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:51:22,173 INFO L87 Difference]: Start difference. First operand 273 states and 412 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 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 03:51:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:22,346 INFO L93 Difference]: Finished difference Result 1011 states and 1564 transitions. [2024-10-14 03:51:22,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:51:22,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-14 03:51:22,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:22,351 INFO L225 Difference]: With dead ends: 1011 [2024-10-14 03:51:22,352 INFO L226 Difference]: Without dead ends: 799 [2024-10-14 03:51:22,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:51:22,355 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 934 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:22,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 894 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:51:22,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-10-14 03:51:22,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 793. [2024-10-14 03:51:22,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 792 states have (on average 1.5366161616161615) internal successors, (1217), 792 states have internal predecessors, (1217), 0 states have call successors, (0), 0 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 03:51:22,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1217 transitions. [2024-10-14 03:51:22,399 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1217 transitions. Word has length 64 [2024-10-14 03:51:22,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:22,400 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 1217 transitions. [2024-10-14 03:51:22,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 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 03:51:22,400 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1217 transitions. [2024-10-14 03:51:22,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 03:51:22,402 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:22,403 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] [2024-10-14 03:51:22,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:51:22,403 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:22,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:22,406 INFO L85 PathProgramCache]: Analyzing trace with hash -61672826, now seen corresponding path program 1 times [2024-10-14 03:51:22,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:22,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104209643] [2024-10-14 03:51:22,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:22,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:22,581 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 03:51:22,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:22,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104209643] [2024-10-14 03:51:22,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104209643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:22,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:22,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:22,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955218566] [2024-10-14 03:51:22,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:22,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:22,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:22,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:22,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:22,586 INFO L87 Difference]: Start difference. First operand 793 states and 1217 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:22,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:22,844 INFO L93 Difference]: Finished difference Result 2125 states and 3303 transitions. [2024-10-14 03:51:22,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:22,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-14 03:51:22,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:22,851 INFO L225 Difference]: With dead ends: 2125 [2024-10-14 03:51:22,852 INFO L226 Difference]: Without dead ends: 1381 [2024-10-14 03:51:22,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:22,857 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1001 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:22,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 244 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:51:22,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2024-10-14 03:51:22,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1379. [2024-10-14 03:51:22,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 1378 states have (on average 1.5457184325108853) internal successors, (2130), 1378 states have internal predecessors, (2130), 0 states have call successors, (0), 0 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 03:51:22,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 2130 transitions. [2024-10-14 03:51:22,893 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 2130 transitions. Word has length 65 [2024-10-14 03:51:22,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:22,894 INFO L471 AbstractCegarLoop]: Abstraction has 1379 states and 2130 transitions. [2024-10-14 03:51:22,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:22,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 2130 transitions. [2024-10-14 03:51:22,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 03:51:22,902 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:22,903 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] [2024-10-14 03:51:22,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:51:22,904 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:22,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:22,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1309679336, now seen corresponding path program 1 times [2024-10-14 03:51:22,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:22,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027383186] [2024-10-14 03:51:22,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:22,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:23,064 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 03:51:23,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:23,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027383186] [2024-10-14 03:51:23,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027383186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:23,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:23,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:23,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031715962] [2024-10-14 03:51:23,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:23,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:23,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:23,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:23,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:23,070 INFO L87 Difference]: Start difference. First operand 1379 states and 2130 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:23,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:23,302 INFO L93 Difference]: Finished difference Result 3711 states and 5788 transitions. [2024-10-14 03:51:23,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:23,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-14 03:51:23,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:23,313 INFO L225 Difference]: With dead ends: 3711 [2024-10-14 03:51:23,314 INFO L226 Difference]: Without dead ends: 2431 [2024-10-14 03:51:23,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:23,319 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 927 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:23,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 250 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:51:23,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2024-10-14 03:51:23,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2429. [2024-10-14 03:51:23,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2429 states, 2428 states have (on average 1.5502471169686984) internal successors, (3764), 2428 states have internal predecessors, (3764), 0 states have call successors, (0), 0 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 03:51:23,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 3764 transitions. [2024-10-14 03:51:23,372 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 3764 transitions. Word has length 65 [2024-10-14 03:51:23,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:23,372 INFO L471 AbstractCegarLoop]: Abstraction has 2429 states and 3764 transitions. [2024-10-14 03:51:23,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:23,373 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 3764 transitions. [2024-10-14 03:51:23,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 03:51:23,376 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:23,376 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] [2024-10-14 03:51:23,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:51:23,376 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:23,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:23,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1039716905, now seen corresponding path program 1 times [2024-10-14 03:51:23,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:23,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054181969] [2024-10-14 03:51:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:23,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:23,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:23,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:23,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054181969] [2024-10-14 03:51:23,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054181969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:23,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:23,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:23,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504766436] [2024-10-14 03:51:23,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:23,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:23,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:23,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:23,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:23,540 INFO L87 Difference]: Start difference. First operand 2429 states and 3764 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:23,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:23,776 INFO L93 Difference]: Finished difference Result 6932 states and 10799 transitions. [2024-10-14 03:51:23,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:23,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-14 03:51:23,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:23,794 INFO L225 Difference]: With dead ends: 6932 [2024-10-14 03:51:23,794 INFO L226 Difference]: Without dead ends: 4575 [2024-10-14 03:51:23,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:23,800 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 953 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:23,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 248 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:51:23,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4575 states. [2024-10-14 03:51:23,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4575 to 4573. [2024-10-14 03:51:23,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4573 states, 4572 states have (on average 1.5485564304461943) internal successors, (7080), 4572 states have internal predecessors, (7080), 0 states have call successors, (0), 0 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 03:51:23,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 7080 transitions. [2024-10-14 03:51:23,893 INFO L78 Accepts]: Start accepts. Automaton has 4573 states and 7080 transitions. Word has length 65 [2024-10-14 03:51:23,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:23,894 INFO L471 AbstractCegarLoop]: Abstraction has 4573 states and 7080 transitions. [2024-10-14 03:51:23,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:23,895 INFO L276 IsEmpty]: Start isEmpty. Operand 4573 states and 7080 transitions. [2024-10-14 03:51:23,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 03:51:23,897 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:23,897 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] [2024-10-14 03:51:23,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:51:23,898 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:23,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:23,899 INFO L85 PathProgramCache]: Analyzing trace with hash 641592565, now seen corresponding path program 1 times [2024-10-14 03:51:23,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:23,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491027346] [2024-10-14 03:51:23,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:23,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:24,023 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 03:51:24,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:24,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491027346] [2024-10-14 03:51:24,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491027346] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:24,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:24,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:24,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20836044] [2024-10-14 03:51:24,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:24,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:24,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:24,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:24,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:24,025 INFO L87 Difference]: Start difference. First operand 4573 states and 7080 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:24,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:24,332 INFO L93 Difference]: Finished difference Result 12539 states and 19465 transitions. [2024-10-14 03:51:24,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:24,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-14 03:51:24,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:24,362 INFO L225 Difference]: With dead ends: 12539 [2024-10-14 03:51:24,363 INFO L226 Difference]: Without dead ends: 7999 [2024-10-14 03:51:24,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:24,371 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1015 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:24,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 242 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:51:24,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7999 states. [2024-10-14 03:51:24,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7999 to 7997. [2024-10-14 03:51:24,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7997 states, 7996 states have (on average 1.539144572286143) internal successors, (12307), 7996 states have internal predecessors, (12307), 0 states have call successors, (0), 0 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 03:51:24,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7997 states to 7997 states and 12307 transitions. [2024-10-14 03:51:24,547 INFO L78 Accepts]: Start accepts. Automaton has 7997 states and 12307 transitions. Word has length 65 [2024-10-14 03:51:24,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:24,548 INFO L471 AbstractCegarLoop]: Abstraction has 7997 states and 12307 transitions. [2024-10-14 03:51:24,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:24,548 INFO L276 IsEmpty]: Start isEmpty. Operand 7997 states and 12307 transitions. [2024-10-14 03:51:24,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 03:51:24,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:24,552 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] [2024-10-14 03:51:24,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:51:24,553 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:24,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:24,553 INFO L85 PathProgramCache]: Analyzing trace with hash 727550024, now seen corresponding path program 1 times [2024-10-14 03:51:24,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:24,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596950698] [2024-10-14 03:51:24,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:24,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:24,862 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 03:51:24,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:24,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596950698] [2024-10-14 03:51:24,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596950698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:24,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:24,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:51:24,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612092003] [2024-10-14 03:51:24,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:24,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:24,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:24,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:24,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:24,866 INFO L87 Difference]: Start difference. First operand 7997 states and 12307 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:24,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:24,931 INFO L93 Difference]: Finished difference Result 8223 states and 12644 transitions. [2024-10-14 03:51:24,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:24,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-14 03:51:24,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:24,961 INFO L225 Difference]: With dead ends: 8223 [2024-10-14 03:51:24,962 INFO L226 Difference]: Without dead ends: 8221 [2024-10-14 03:51:24,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:24,967 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:24,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 965 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:51:24,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8221 states. [2024-10-14 03:51:25,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8221 to 8221. [2024-10-14 03:51:25,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8221 states, 8220 states have (on average 1.5244525547445256) internal successors, (12531), 8220 states have internal predecessors, (12531), 0 states have call successors, (0), 0 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 03:51:25,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8221 states to 8221 states and 12531 transitions. [2024-10-14 03:51:25,162 INFO L78 Accepts]: Start accepts. Automaton has 8221 states and 12531 transitions. Word has length 66 [2024-10-14 03:51:25,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:25,163 INFO L471 AbstractCegarLoop]: Abstraction has 8221 states and 12531 transitions. [2024-10-14 03:51:25,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:25,163 INFO L276 IsEmpty]: Start isEmpty. Operand 8221 states and 12531 transitions. [2024-10-14 03:51:25,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 03:51:25,165 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:25,166 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] [2024-10-14 03:51:25,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:51:25,166 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:25,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:25,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1358621374, now seen corresponding path program 1 times [2024-10-14 03:51:25,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:25,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730146437] [2024-10-14 03:51:25,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:25,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:25,605 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 03:51:25,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:25,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730146437] [2024-10-14 03:51:25,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730146437] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:25,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:25,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:51:25,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140017346] [2024-10-14 03:51:25,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:25,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:51:25,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:25,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:51:25,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:51:25,608 INFO L87 Difference]: Start difference. First operand 8221 states and 12531 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 03:51:26,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:26,339 INFO L93 Difference]: Finished difference Result 18059 states and 27326 transitions. [2024-10-14 03:51:26,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:51:26,340 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-10-14 03:51:26,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:26,365 INFO L225 Difference]: With dead ends: 18059 [2024-10-14 03:51:26,366 INFO L226 Difference]: Without dead ends: 12245 [2024-10-14 03:51:26,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-14 03:51:26,377 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1173 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:26,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 776 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 03:51:26,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12245 states. [2024-10-14 03:51:26,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12245 to 8354. [2024-10-14 03:51:26,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8354 states, 8353 states have (on average 1.5211301328863882) internal successors, (12706), 8353 states have internal predecessors, (12706), 0 states have call successors, (0), 0 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 03:51:26,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8354 states to 8354 states and 12706 transitions. [2024-10-14 03:51:26,610 INFO L78 Accepts]: Start accepts. Automaton has 8354 states and 12706 transitions. Word has length 67 [2024-10-14 03:51:26,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:26,611 INFO L471 AbstractCegarLoop]: Abstraction has 8354 states and 12706 transitions. [2024-10-14 03:51:26,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 03:51:26,612 INFO L276 IsEmpty]: Start isEmpty. Operand 8354 states and 12706 transitions. [2024-10-14 03:51:26,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 03:51:26,615 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:26,616 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] [2024-10-14 03:51:26,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:51:26,616 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:26,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:26,617 INFO L85 PathProgramCache]: Analyzing trace with hash 984808062, now seen corresponding path program 1 times [2024-10-14 03:51:26,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:26,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435857054] [2024-10-14 03:51:26,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:26,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:26,977 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 03:51:26,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:26,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435857054] [2024-10-14 03:51:26,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435857054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:26,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:26,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:51:26,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251138567] [2024-10-14 03:51:26,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:26,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:51:26,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:26,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:51:26,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:51:26,980 INFO L87 Difference]: Start difference. First operand 8354 states and 12706 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 03:51:27,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:27,600 INFO L93 Difference]: Finished difference Result 11078 states and 16717 transitions. [2024-10-14 03:51:27,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 03:51:27,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-10-14 03:51:27,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:27,620 INFO L225 Difference]: With dead ends: 11078 [2024-10-14 03:51:27,620 INFO L226 Difference]: Without dead ends: 9771 [2024-10-14 03:51:27,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-14 03:51:27,627 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 968 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:27,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 765 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 03:51:27,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9771 states. [2024-10-14 03:51:27,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9771 to 8354. [2024-10-14 03:51:27,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8354 states, 8353 states have (on average 1.5208906979528314) internal successors, (12704), 8353 states have internal predecessors, (12704), 0 states have call successors, (0), 0 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 03:51:27,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8354 states to 8354 states and 12704 transitions. [2024-10-14 03:51:27,802 INFO L78 Accepts]: Start accepts. Automaton has 8354 states and 12704 transitions. Word has length 67 [2024-10-14 03:51:27,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:27,802 INFO L471 AbstractCegarLoop]: Abstraction has 8354 states and 12704 transitions. [2024-10-14 03:51:27,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 03:51:27,803 INFO L276 IsEmpty]: Start isEmpty. Operand 8354 states and 12704 transitions. [2024-10-14 03:51:27,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 03:51:27,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:27,805 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] [2024-10-14 03:51:27,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:51:27,806 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:27,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:27,806 INFO L85 PathProgramCache]: Analyzing trace with hash -838054242, now seen corresponding path program 1 times [2024-10-14 03:51:27,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:27,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275948773] [2024-10-14 03:51:27,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:27,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:28,218 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 03:51:28,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:28,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275948773] [2024-10-14 03:51:28,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275948773] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:28,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:28,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:51:28,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783283406] [2024-10-14 03:51:28,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:28,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:51:28,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:28,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:51:28,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:51:28,221 INFO L87 Difference]: Start difference. First operand 8354 states and 12704 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 03:51:29,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:29,030 INFO L93 Difference]: Finished difference Result 16402 states and 24762 transitions. [2024-10-14 03:51:29,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 03:51:29,030 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-10-14 03:51:29,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:29,060 INFO L225 Difference]: With dead ends: 16402 [2024-10-14 03:51:29,060 INFO L226 Difference]: Without dead ends: 12825 [2024-10-14 03:51:29,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 03:51:29,070 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 760 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:29,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 1001 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 03:51:29,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12825 states. [2024-10-14 03:51:29,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12825 to 8577. [2024-10-14 03:51:29,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8577 states, 8576 states have (on average 1.5162080223880596) internal successors, (13003), 8576 states have internal predecessors, (13003), 0 states have call successors, (0), 0 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 03:51:29,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8577 states to 8577 states and 13003 transitions. [2024-10-14 03:51:29,330 INFO L78 Accepts]: Start accepts. Automaton has 8577 states and 13003 transitions. Word has length 67 [2024-10-14 03:51:29,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:29,331 INFO L471 AbstractCegarLoop]: Abstraction has 8577 states and 13003 transitions. [2024-10-14 03:51:29,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 03:51:29,331 INFO L276 IsEmpty]: Start isEmpty. Operand 8577 states and 13003 transitions. [2024-10-14 03:51:29,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 03:51:29,335 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:29,335 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] [2024-10-14 03:51:29,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:51:29,336 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:29,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:29,337 INFO L85 PathProgramCache]: Analyzing trace with hash 296668894, now seen corresponding path program 1 times [2024-10-14 03:51:29,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:29,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776030471] [2024-10-14 03:51:29,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:29,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:29,705 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 03:51:29,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:29,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776030471] [2024-10-14 03:51:29,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776030471] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:29,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:29,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:51:29,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134685003] [2024-10-14 03:51:29,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:29,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:51:29,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:29,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:51:29,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:51:29,708 INFO L87 Difference]: Start difference. First operand 8577 states and 13003 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 03:51:30,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:30,545 INFO L93 Difference]: Finished difference Result 21669 states and 32662 transitions. [2024-10-14 03:51:30,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 03:51:30,546 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-10-14 03:51:30,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:30,572 INFO L225 Difference]: With dead ends: 21669 [2024-10-14 03:51:30,572 INFO L226 Difference]: Without dead ends: 13754 [2024-10-14 03:51:30,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 03:51:30,584 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 773 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:30,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1029 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 03:51:30,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13754 states. [2024-10-14 03:51:30,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13754 to 8727. [2024-10-14 03:51:30,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8727 states, 8726 states have (on average 1.5092826037130416) internal successors, (13170), 8726 states have internal predecessors, (13170), 0 states have call successors, (0), 0 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 03:51:30,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8727 states to 8727 states and 13170 transitions. [2024-10-14 03:51:30,782 INFO L78 Accepts]: Start accepts. Automaton has 8727 states and 13170 transitions. Word has length 67 [2024-10-14 03:51:30,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:30,783 INFO L471 AbstractCegarLoop]: Abstraction has 8727 states and 13170 transitions. [2024-10-14 03:51:30,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 03:51:30,783 INFO L276 IsEmpty]: Start isEmpty. Operand 8727 states and 13170 transitions. [2024-10-14 03:51:30,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 03:51:30,786 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:30,786 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:30,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:51:30,787 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:30,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:30,787 INFO L85 PathProgramCache]: Analyzing trace with hash 143038673, now seen corresponding path program 1 times [2024-10-14 03:51:30,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:30,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441061338] [2024-10-14 03:51:30,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:30,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:30,940 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 03:51:30,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:30,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441061338] [2024-10-14 03:51:30,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441061338] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:30,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:30,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:30,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831251298] [2024-10-14 03:51:30,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:30,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:51:30,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:30,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:51:30,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:51:30,942 INFO L87 Difference]: Start difference. First operand 8727 states and 13170 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:31,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:31,025 INFO L93 Difference]: Finished difference Result 22787 states and 34564 transitions. [2024-10-14 03:51:31,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:51:31,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-14 03:51:31,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:31,053 INFO L225 Difference]: With dead ends: 22787 [2024-10-14 03:51:31,053 INFO L226 Difference]: Without dead ends: 15137 [2024-10-14 03:51:31,066 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 03:51:31,067 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 170 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:31,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 603 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:51:31,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15137 states. [2024-10-14 03:51:31,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15137 to 15031. [2024-10-14 03:51:31,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15031 states, 15030 states have (on average 1.4990019960079841) internal successors, (22530), 15030 states have internal predecessors, (22530), 0 states have call successors, (0), 0 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 03:51:31,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15031 states to 15031 states and 22530 transitions. [2024-10-14 03:51:31,322 INFO L78 Accepts]: Start accepts. Automaton has 15031 states and 22530 transitions. Word has length 68 [2024-10-14 03:51:31,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:31,323 INFO L471 AbstractCegarLoop]: Abstraction has 15031 states and 22530 transitions. [2024-10-14 03:51:31,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:31,323 INFO L276 IsEmpty]: Start isEmpty. Operand 15031 states and 22530 transitions. [2024-10-14 03:51:31,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 03:51:31,326 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:31,326 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] [2024-10-14 03:51:31,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:51:31,326 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:31,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:31,327 INFO L85 PathProgramCache]: Analyzing trace with hash 897492929, now seen corresponding path program 1 times [2024-10-14 03:51:31,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:31,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958305381] [2024-10-14 03:51:31,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:31,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:31,383 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 03:51:31,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:31,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958305381] [2024-10-14 03:51:31,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958305381] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:31,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:31,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:51:31,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503470198] [2024-10-14 03:51:31,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:31,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:51:31,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:31,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:51:31,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:51:31,386 INFO L87 Difference]: Start difference. First operand 15031 states and 22530 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:31,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:31,479 INFO L93 Difference]: Finished difference Result 27395 states and 41147 transitions. [2024-10-14 03:51:31,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:51:31,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-14 03:51:31,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:31,510 INFO L225 Difference]: With dead ends: 27395 [2024-10-14 03:51:31,510 INFO L226 Difference]: Without dead ends: 18429 [2024-10-14 03:51:31,524 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 03:51:31,526 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 156 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:31,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 478 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:51:31,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18429 states. [2024-10-14 03:51:31,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18429 to 18211. [2024-10-14 03:51:31,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18211 states, 18210 states have (on average 1.4792421746293245) internal successors, (26937), 18210 states have internal predecessors, (26937), 0 states have call successors, (0), 0 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 03:51:31,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18211 states to 18211 states and 26937 transitions. [2024-10-14 03:51:31,776 INFO L78 Accepts]: Start accepts. Automaton has 18211 states and 26937 transitions. Word has length 68 [2024-10-14 03:51:31,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:31,776 INFO L471 AbstractCegarLoop]: Abstraction has 18211 states and 26937 transitions. [2024-10-14 03:51:31,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:31,777 INFO L276 IsEmpty]: Start isEmpty. Operand 18211 states and 26937 transitions. [2024-10-14 03:51:31,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 03:51:31,779 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:31,779 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:31,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:51:31,780 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:31,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:31,780 INFO L85 PathProgramCache]: Analyzing trace with hash 136395041, now seen corresponding path program 1 times [2024-10-14 03:51:31,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:31,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318846697] [2024-10-14 03:51:31,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:31,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:31,916 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 03:51:31,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:31,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318846697] [2024-10-14 03:51:31,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318846697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:31,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:31,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:51:31,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619702967] [2024-10-14 03:51:31,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:31,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:51:31,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:31,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:51:31,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:51:31,919 INFO L87 Difference]: Start difference. First operand 18211 states and 26937 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:32,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:32,029 INFO L93 Difference]: Finished difference Result 40143 states and 59520 transitions. [2024-10-14 03:51:32,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:51:32,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-14 03:51:32,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:32,080 INFO L225 Difference]: With dead ends: 40143 [2024-10-14 03:51:32,081 INFO L226 Difference]: Without dead ends: 24347 [2024-10-14 03:51:32,103 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 03:51:32,104 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 175 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:32,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 462 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:51:32,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24347 states. [2024-10-14 03:51:32,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24347 to 24281. [2024-10-14 03:51:32,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24281 states, 24280 states have (on average 1.4637149917627676) internal successors, (35539), 24280 states have internal predecessors, (35539), 0 states have call successors, (0), 0 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 03:51:32,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24281 states to 24281 states and 35539 transitions. [2024-10-14 03:51:32,443 INFO L78 Accepts]: Start accepts. Automaton has 24281 states and 35539 transitions. Word has length 68 [2024-10-14 03:51:32,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:32,443 INFO L471 AbstractCegarLoop]: Abstraction has 24281 states and 35539 transitions. [2024-10-14 03:51:32,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:32,443 INFO L276 IsEmpty]: Start isEmpty. Operand 24281 states and 35539 transitions. [2024-10-14 03:51:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 03:51:32,448 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:32,449 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:32,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:51:32,449 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:32,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:32,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1838550528, now seen corresponding path program 1 times [2024-10-14 03:51:32,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:32,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558194182] [2024-10-14 03:51:32,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:32,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:32,585 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 03:51:32,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:32,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558194182] [2024-10-14 03:51:32,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558194182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:32,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:32,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:51:32,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836130555] [2024-10-14 03:51:32,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:32,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:51:32,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:32,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:51:32,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:51:32,588 INFO L87 Difference]: Start difference. First operand 24281 states and 35539 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:32,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:32,709 INFO L93 Difference]: Finished difference Result 33906 states and 49405 transitions. [2024-10-14 03:51:32,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:51:32,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-14 03:51:32,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:32,754 INFO L225 Difference]: With dead ends: 33906 [2024-10-14 03:51:32,755 INFO L226 Difference]: Without dead ends: 24822 [2024-10-14 03:51:32,776 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 03:51:32,777 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 143 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:32,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 462 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:51:32,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24822 states. [2024-10-14 03:51:33,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24822 to 22224. [2024-10-14 03:51:33,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22224 states, 22223 states have (on average 1.4353597624083156) internal successors, (31898), 22223 states have internal predecessors, (31898), 0 states have call successors, (0), 0 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 03:51:33,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22224 states to 22224 states and 31898 transitions. [2024-10-14 03:51:33,234 INFO L78 Accepts]: Start accepts. Automaton has 22224 states and 31898 transitions. Word has length 68 [2024-10-14 03:51:33,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:33,234 INFO L471 AbstractCegarLoop]: Abstraction has 22224 states and 31898 transitions. [2024-10-14 03:51:33,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:33,235 INFO L276 IsEmpty]: Start isEmpty. Operand 22224 states and 31898 transitions. [2024-10-14 03:51:33,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 03:51:33,240 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:33,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:33,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:51:33,240 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:33,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:33,242 INFO L85 PathProgramCache]: Analyzing trace with hash -100445024, now seen corresponding path program 1 times [2024-10-14 03:51:33,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:33,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310812867] [2024-10-14 03:51:33,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:33,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:33,320 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 03:51:33,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:33,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310812867] [2024-10-14 03:51:33,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310812867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:33,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:33,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:51:33,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64468781] [2024-10-14 03:51:33,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:33,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:51:33,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:33,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:51:33,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:51:33,325 INFO L87 Difference]: Start difference. First operand 22224 states and 31898 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:33,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:33,463 INFO L93 Difference]: Finished difference Result 44869 states and 64240 transitions. [2024-10-14 03:51:33,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:51:33,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-14 03:51:33,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:33,519 INFO L225 Difference]: With dead ends: 44869 [2024-10-14 03:51:33,520 INFO L226 Difference]: Without dead ends: 25147 [2024-10-14 03:51:33,542 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 03:51:33,543 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 161 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:33,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 552 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:51:33,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25147 states. [2024-10-14 03:51:33,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25147 to 24901. [2024-10-14 03:51:33,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24901 states, 24900 states have (on average 1.398433734939759) internal successors, (34821), 24900 states have internal predecessors, (34821), 0 states have call successors, (0), 0 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 03:51:33,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24901 states to 24901 states and 34821 transitions. [2024-10-14 03:51:33,971 INFO L78 Accepts]: Start accepts. Automaton has 24901 states and 34821 transitions. Word has length 68 [2024-10-14 03:51:33,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:33,971 INFO L471 AbstractCegarLoop]: Abstraction has 24901 states and 34821 transitions. [2024-10-14 03:51:33,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:33,972 INFO L276 IsEmpty]: Start isEmpty. Operand 24901 states and 34821 transitions. [2024-10-14 03:51:33,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 03:51:33,975 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:33,975 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] [2024-10-14 03:51:33,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:51:33,975 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:33,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:33,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1940195899, now seen corresponding path program 1 times [2024-10-14 03:51:33,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:33,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972180011] [2024-10-14 03:51:33,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:33,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:34,095 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 03:51:34,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:34,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972180011] [2024-10-14 03:51:34,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972180011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:34,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:34,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:51:34,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785431011] [2024-10-14 03:51:34,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:34,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:51:34,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:34,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:51:34,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:51:34,098 INFO L87 Difference]: Start difference. First operand 24901 states and 34821 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 03:51:34,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:34,307 INFO L93 Difference]: Finished difference Result 52990 states and 74772 transitions. [2024-10-14 03:51:34,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:51:34,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-14 03:51:34,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:34,377 INFO L225 Difference]: With dead ends: 52990 [2024-10-14 03:51:34,378 INFO L226 Difference]: Without dead ends: 42896 [2024-10-14 03:51:34,411 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 03:51:34,412 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 1081 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:34,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 1145 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:51:34,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42896 states. [2024-10-14 03:51:34,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42896 to 34309. [2024-10-14 03:51:34,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34309 states, 34308 states have (on average 1.3987991139092923) internal successors, (47990), 34308 states have internal predecessors, (47990), 0 states have call successors, (0), 0 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 03:51:35,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34309 states to 34309 states and 47990 transitions. [2024-10-14 03:51:35,043 INFO L78 Accepts]: Start accepts. Automaton has 34309 states and 47990 transitions. Word has length 69 [2024-10-14 03:51:35,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:35,043 INFO L471 AbstractCegarLoop]: Abstraction has 34309 states and 47990 transitions. [2024-10-14 03:51:35,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 03:51:35,044 INFO L276 IsEmpty]: Start isEmpty. Operand 34309 states and 47990 transitions. [2024-10-14 03:51:35,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 03:51:35,049 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:35,049 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] [2024-10-14 03:51:35,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:51:35,050 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:35,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:35,050 INFO L85 PathProgramCache]: Analyzing trace with hash 520253443, now seen corresponding path program 1 times [2024-10-14 03:51:35,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:35,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058120014] [2024-10-14 03:51:35,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:35,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:35,335 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 03:51:35,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:35,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058120014] [2024-10-14 03:51:35,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058120014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:35,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:35,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:51:35,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961492592] [2024-10-14 03:51:35,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:35,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:51:35,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:35,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:51:35,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:51:35,337 INFO L87 Difference]: Start difference. First operand 34309 states and 47990 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 03:51:35,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:35,730 INFO L93 Difference]: Finished difference Result 52475 states and 73829 transitions. [2024-10-14 03:51:35,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:51:35,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-14 03:51:35,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:35,821 INFO L225 Difference]: With dead ends: 52475 [2024-10-14 03:51:35,821 INFO L226 Difference]: Without dead ends: 49485 [2024-10-14 03:51:35,841 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 03:51:35,842 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 1107 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:35,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1197 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:51:35,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49485 states. [2024-10-14 03:51:36,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49485 to 37252. [2024-10-14 03:51:36,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37252 states, 37251 states have (on average 1.3991839145257845) internal successors, (52121), 37251 states have internal predecessors, (52121), 0 states have call successors, (0), 0 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 03:51:36,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37252 states to 37252 states and 52121 transitions. [2024-10-14 03:51:36,550 INFO L78 Accepts]: Start accepts. Automaton has 37252 states and 52121 transitions. Word has length 69 [2024-10-14 03:51:36,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:36,550 INFO L471 AbstractCegarLoop]: Abstraction has 37252 states and 52121 transitions. [2024-10-14 03:51:36,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 03:51:36,550 INFO L276 IsEmpty]: Start isEmpty. Operand 37252 states and 52121 transitions. [2024-10-14 03:51:36,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 03:51:36,555 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:36,555 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] [2024-10-14 03:51:36,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 03:51:36,555 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:36,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:36,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1252332142, now seen corresponding path program 1 times [2024-10-14 03:51:36,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:36,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185756107] [2024-10-14 03:51:36,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:36,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:36,819 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 03:51:36,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:36,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185756107] [2024-10-14 03:51:36,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185756107] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:36,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:36,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:51:36,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788055891] [2024-10-14 03:51:36,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:36,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:51:36,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:36,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:51:36,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:51:36,822 INFO L87 Difference]: Start difference. First operand 37252 states and 52121 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 03:51:37,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:37,183 INFO L93 Difference]: Finished difference Result 58966 states and 82996 transitions. [2024-10-14 03:51:37,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:51:37,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-14 03:51:37,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:37,275 INFO L225 Difference]: With dead ends: 58966 [2024-10-14 03:51:37,275 INFO L226 Difference]: Without dead ends: 52352 [2024-10-14 03:51:37,298 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 03:51:37,299 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 1029 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:37,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 1352 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:51:37,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52352 states. [2024-10-14 03:51:37,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52352 to 41437. [2024-10-14 03:51:37,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41437 states, 41436 states have (on average 1.4011970267400329) internal successors, (58060), 41436 states have internal predecessors, (58060), 0 states have call successors, (0), 0 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 03:51:37,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41437 states to 41437 states and 58060 transitions. [2024-10-14 03:51:37,922 INFO L78 Accepts]: Start accepts. Automaton has 41437 states and 58060 transitions. Word has length 69 [2024-10-14 03:51:37,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:37,922 INFO L471 AbstractCegarLoop]: Abstraction has 41437 states and 58060 transitions. [2024-10-14 03:51:37,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 03:51:37,923 INFO L276 IsEmpty]: Start isEmpty. Operand 41437 states and 58060 transitions. [2024-10-14 03:51:37,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 03:51:37,925 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:37,925 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] [2024-10-14 03:51:37,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 03:51:37,925 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:37,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:37,926 INFO L85 PathProgramCache]: Analyzing trace with hash 662995848, now seen corresponding path program 1 times [2024-10-14 03:51:37,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:37,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810000131] [2024-10-14 03:51:37,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:37,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:38,035 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 03:51:38,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:38,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810000131] [2024-10-14 03:51:38,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810000131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:38,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:38,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:51:38,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076014908] [2024-10-14 03:51:38,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:38,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:51:38,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:38,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:51:38,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:51:38,038 INFO L87 Difference]: Start difference. First operand 41437 states and 58060 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 03:51:38,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:38,498 INFO L93 Difference]: Finished difference Result 71178 states and 100264 transitions. [2024-10-14 03:51:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:51:38,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-14 03:51:38,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:38,608 INFO L225 Difference]: With dead ends: 71178 [2024-10-14 03:51:38,608 INFO L226 Difference]: Without dead ends: 60737 [2024-10-14 03:51:38,640 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 03:51:38,641 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 1089 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:38,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1288 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:51:38,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60737 states. [2024-10-14 03:51:39,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60737 to 45935. [2024-10-14 03:51:39,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45935 states, 45934 states have (on average 1.4016414856097879) internal successors, (64383), 45934 states have internal predecessors, (64383), 0 states have call successors, (0), 0 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 03:51:39,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45935 states to 45935 states and 64383 transitions. [2024-10-14 03:51:39,671 INFO L78 Accepts]: Start accepts. Automaton has 45935 states and 64383 transitions. Word has length 69 [2024-10-14 03:51:39,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:39,672 INFO L471 AbstractCegarLoop]: Abstraction has 45935 states and 64383 transitions. [2024-10-14 03:51:39,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 03:51:39,672 INFO L276 IsEmpty]: Start isEmpty. Operand 45935 states and 64383 transitions. [2024-10-14 03:51:39,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 03:51:39,675 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:39,676 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 03:51:39,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 03:51:39,676 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:39,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:39,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1615492394, now seen corresponding path program 1 times [2024-10-14 03:51:39,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:39,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729549420] [2024-10-14 03:51:39,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:39,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:39,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:39,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729549420] [2024-10-14 03:51:39,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729549420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:39,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:39,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:51:39,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365563158] [2024-10-14 03:51:39,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:39,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:51:39,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:39,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:51:39,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:39,798 INFO L87 Difference]: Start difference. First operand 45935 states and 64383 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 03:51:40,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:40,833 INFO L93 Difference]: Finished difference Result 143736 states and 201007 transitions. [2024-10-14 03:51:40,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:51:40,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 03:51:40,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:40,990 INFO L225 Difference]: With dead ends: 143736 [2024-10-14 03:51:40,990 INFO L226 Difference]: Without dead ends: 121278 [2024-10-14 03:51:41,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:51:41,022 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1766 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:41,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 468 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:51:41,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121278 states. [2024-10-14 03:51:42,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121278 to 46039. [2024-10-14 03:51:42,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46039 states, 46038 states have (on average 1.4011903210391417) internal successors, (64508), 46038 states have internal predecessors, (64508), 0 states have call successors, (0), 0 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 03:51:42,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46039 states to 46039 states and 64508 transitions. [2024-10-14 03:51:42,179 INFO L78 Accepts]: Start accepts. Automaton has 46039 states and 64508 transitions. Word has length 74 [2024-10-14 03:51:42,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:42,180 INFO L471 AbstractCegarLoop]: Abstraction has 46039 states and 64508 transitions. [2024-10-14 03:51:42,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 03:51:42,180 INFO L276 IsEmpty]: Start isEmpty. Operand 46039 states and 64508 transitions. [2024-10-14 03:51:42,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 03:51:42,185 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:42,185 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 03:51:42,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 03:51:42,186 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:42,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:42,186 INFO L85 PathProgramCache]: Analyzing trace with hash 282958172, now seen corresponding path program 1 times [2024-10-14 03:51:42,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:42,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71897024] [2024-10-14 03:51:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:42,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:42,331 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 03:51:42,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:42,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71897024] [2024-10-14 03:51:42,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71897024] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:42,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:42,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:51:42,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982551191] [2024-10-14 03:51:42,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:42,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:51:42,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:42,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:51:42,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:42,333 INFO L87 Difference]: Start difference. First operand 46039 states and 64508 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 03:51:43,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:43,110 INFO L93 Difference]: Finished difference Result 136034 states and 189172 transitions. [2024-10-14 03:51:43,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:51:43,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 03:51:43,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:43,270 INFO L225 Difference]: With dead ends: 136034 [2024-10-14 03:51:43,271 INFO L226 Difference]: Without dead ends: 119004 [2024-10-14 03:51:43,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:51:43,324 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1539 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:43,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 473 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:51:43,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119004 states. [2024-10-14 03:51:44,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119004 to 46201. [2024-10-14 03:51:44,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46201 states, 46200 states have (on average 1.4004545454545454) internal successors, (64701), 46200 states have internal predecessors, (64701), 0 states have call successors, (0), 0 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 03:51:44,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46201 states to 46201 states and 64701 transitions. [2024-10-14 03:51:44,820 INFO L78 Accepts]: Start accepts. Automaton has 46201 states and 64701 transitions. Word has length 74 [2024-10-14 03:51:44,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:44,820 INFO L471 AbstractCegarLoop]: Abstraction has 46201 states and 64701 transitions. [2024-10-14 03:51:44,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 03:51:44,821 INFO L276 IsEmpty]: Start isEmpty. Operand 46201 states and 64701 transitions. [2024-10-14 03:51:44,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 03:51:44,825 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:44,825 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 03:51:44,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 03:51:44,826 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:44,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:44,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1376997652, now seen corresponding path program 1 times [2024-10-14 03:51:44,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:44,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876916882] [2024-10-14 03:51:44,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:44,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:45,016 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 03:51:45,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:45,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876916882] [2024-10-14 03:51:45,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876916882] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:45,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:45,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:51:45,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919032127] [2024-10-14 03:51:45,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:45,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:51:45,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:45,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:51:45,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:45,019 INFO L87 Difference]: Start difference. First operand 46201 states and 64701 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 03:51:45,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:45,603 INFO L93 Difference]: Finished difference Result 114377 states and 159316 transitions. [2024-10-14 03:51:45,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:51:45,604 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 03:51:45,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:45,738 INFO L225 Difference]: With dead ends: 114377 [2024-10-14 03:51:45,739 INFO L226 Difference]: Without dead ends: 87149 [2024-10-14 03:51:45,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:51:45,776 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1254 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:45,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 394 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:51:45,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87149 states. [2024-10-14 03:51:46,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87149 to 46251. [2024-10-14 03:51:46,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46251 states, 46250 states have (on average 1.4002378378378377) internal successors, (64761), 46250 states have internal predecessors, (64761), 0 states have call successors, (0), 0 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 03:51:46,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46251 states to 46251 states and 64761 transitions. [2024-10-14 03:51:46,784 INFO L78 Accepts]: Start accepts. Automaton has 46251 states and 64761 transitions. Word has length 74 [2024-10-14 03:51:46,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:46,784 INFO L471 AbstractCegarLoop]: Abstraction has 46251 states and 64761 transitions. [2024-10-14 03:51:46,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 03:51:46,785 INFO L276 IsEmpty]: Start isEmpty. Operand 46251 states and 64761 transitions. [2024-10-14 03:51:46,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 03:51:46,788 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:46,788 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 03:51:46,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 03:51:46,788 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:46,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:46,789 INFO L85 PathProgramCache]: Analyzing trace with hash -760049320, now seen corresponding path program 1 times [2024-10-14 03:51:46,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:46,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373757206] [2024-10-14 03:51:46,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:46,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:46,914 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 03:51:46,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:46,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373757206] [2024-10-14 03:51:46,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373757206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:46,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:46,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:51:46,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287248263] [2024-10-14 03:51:46,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:46,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:51:46,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:46,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:51:46,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:46,917 INFO L87 Difference]: Start difference. First operand 46251 states and 64761 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 03:51:48,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:48,050 INFO L93 Difference]: Finished difference Result 108736 states and 150766 transitions. [2024-10-14 03:51:48,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:51:48,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 03:51:48,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:48,182 INFO L225 Difference]: With dead ends: 108736 [2024-10-14 03:51:48,182 INFO L226 Difference]: Without dead ends: 99938 [2024-10-14 03:51:48,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:51:48,218 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 1439 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:48,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 441 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 03:51:48,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99938 states. [2024-10-14 03:51:49,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99938 to 46500. [2024-10-14 03:51:49,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46500 states, 46499 states have (on average 1.3989763220714424) internal successors, (65051), 46499 states have internal predecessors, (65051), 0 states have call successors, (0), 0 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 03:51:49,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46500 states to 46500 states and 65051 transitions. [2024-10-14 03:51:49,440 INFO L78 Accepts]: Start accepts. Automaton has 46500 states and 65051 transitions. Word has length 74 [2024-10-14 03:51:49,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:49,441 INFO L471 AbstractCegarLoop]: Abstraction has 46500 states and 65051 transitions. [2024-10-14 03:51:49,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 03:51:49,441 INFO L276 IsEmpty]: Start isEmpty. Operand 46500 states and 65051 transitions. [2024-10-14 03:51:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:51:49,446 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:49,446 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:49,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 03:51:49,447 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:49,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:49,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1870035016, now seen corresponding path program 1 times [2024-10-14 03:51:49,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:49,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323762107] [2024-10-14 03:51:49,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:49,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:50,132 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 03:51:50,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:50,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323762107] [2024-10-14 03:51:50,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323762107] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:50,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:50,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:51:50,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925822036] [2024-10-14 03:51:50,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:50,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 03:51:50,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:50,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 03:51:50,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:51:50,135 INFO L87 Difference]: Start difference. First operand 46500 states and 65051 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:51,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:51,432 INFO L93 Difference]: Finished difference Result 85371 states and 119460 transitions. [2024-10-14 03:51:51,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 03:51:51,433 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 03:51:51,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:51,509 INFO L225 Difference]: With dead ends: 85371 [2024-10-14 03:51:51,509 INFO L226 Difference]: Without dead ends: 79429 [2024-10-14 03:51:51,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 03:51:51,528 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 1135 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:51,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 2412 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 03:51:51,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79429 states. [2024-10-14 03:51:52,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79429 to 46513. [2024-10-14 03:51:52,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46513 states, 46512 states have (on average 1.3987143102855177) internal successors, (65057), 46512 states have internal predecessors, (65057), 0 states have call successors, (0), 0 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 03:51:52,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46513 states to 46513 states and 65057 transitions. [2024-10-14 03:51:52,105 INFO L78 Accepts]: Start accepts. Automaton has 46513 states and 65057 transitions. Word has length 76 [2024-10-14 03:51:52,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:52,106 INFO L471 AbstractCegarLoop]: Abstraction has 46513 states and 65057 transitions. [2024-10-14 03:51:52,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:52,106 INFO L276 IsEmpty]: Start isEmpty. Operand 46513 states and 65057 transitions. [2024-10-14 03:51:52,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:51:52,110 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:52,110 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:52,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 03:51:52,110 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:52,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:52,111 INFO L85 PathProgramCache]: Analyzing trace with hash 484016192, now seen corresponding path program 1 times [2024-10-14 03:51:52,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:52,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073033481] [2024-10-14 03:51:52,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:52,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:52,796 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 03:51:52,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:52,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073033481] [2024-10-14 03:51:52,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073033481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:52,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:52,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:51:52,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825903957] [2024-10-14 03:51:52,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:52,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 03:51:52,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:52,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 03:51:52,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:51:52,799 INFO L87 Difference]: Start difference. First operand 46513 states and 65057 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:53,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:53,543 INFO L93 Difference]: Finished difference Result 106699 states and 149033 transitions. [2024-10-14 03:51:53,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 03:51:53,543 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 03:51:53,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:53,671 INFO L225 Difference]: With dead ends: 106699 [2024-10-14 03:51:53,671 INFO L226 Difference]: Without dead ends: 101523 [2024-10-14 03:51:53,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2024-10-14 03:51:53,708 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 1459 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:53,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 1943 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:51:53,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101523 states. [2024-10-14 03:51:54,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101523 to 45830. [2024-10-14 03:51:54,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45830 states, 45829 states have (on average 1.399375940998058) internal successors, (64132), 45829 states have internal predecessors, (64132), 0 states have call successors, (0), 0 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 03:51:54,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45830 states to 45830 states and 64132 transitions. [2024-10-14 03:51:54,930 INFO L78 Accepts]: Start accepts. Automaton has 45830 states and 64132 transitions. Word has length 76 [2024-10-14 03:51:54,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:54,931 INFO L471 AbstractCegarLoop]: Abstraction has 45830 states and 64132 transitions. [2024-10-14 03:51:54,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:54,931 INFO L276 IsEmpty]: Start isEmpty. Operand 45830 states and 64132 transitions. [2024-10-14 03:51:54,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:51:54,936 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:54,936 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:54,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 03:51:54,936 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:54,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:54,937 INFO L85 PathProgramCache]: Analyzing trace with hash 159257590, now seen corresponding path program 1 times [2024-10-14 03:51:54,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:54,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86657222] [2024-10-14 03:51:54,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:54,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:55,700 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 03:51:55,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:55,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86657222] [2024-10-14 03:51:55,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86657222] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:55,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:55,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:51:55,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183333645] [2024-10-14 03:51:55,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:55,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 03:51:55,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:55,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 03:51:55,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:51:55,703 INFO L87 Difference]: Start difference. First operand 45830 states and 64132 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:56,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:56,887 INFO L93 Difference]: Finished difference Result 99794 states and 139791 transitions. [2024-10-14 03:51:56,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 03:51:56,888 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 03:51:56,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:56,979 INFO L225 Difference]: With dead ends: 99794 [2024-10-14 03:51:56,980 INFO L226 Difference]: Without dead ends: 86602 [2024-10-14 03:51:57,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 03:51:57,015 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 1415 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 1938 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:57,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1415 Valid, 1938 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:51:57,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86602 states. [2024-10-14 03:51:57,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86602 to 45789. [2024-10-14 03:51:57,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45789 states, 45788 states have (on average 1.3995588363763432) internal successors, (64083), 45788 states have internal predecessors, (64083), 0 states have call successors, (0), 0 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 03:51:57,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45789 states to 45789 states and 64083 transitions. [2024-10-14 03:51:57,957 INFO L78 Accepts]: Start accepts. Automaton has 45789 states and 64083 transitions. Word has length 76 [2024-10-14 03:51:57,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:57,958 INFO L471 AbstractCegarLoop]: Abstraction has 45789 states and 64083 transitions. [2024-10-14 03:51:57,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:57,958 INFO L276 IsEmpty]: Start isEmpty. Operand 45789 states and 64083 transitions. [2024-10-14 03:51:57,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-14 03:51:57,962 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:57,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:57,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 03:51:57,963 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:57,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:57,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1971062765, now seen corresponding path program 1 times [2024-10-14 03:51:57,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:57,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25370394] [2024-10-14 03:51:57,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:57,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:58,017 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 03:51:58,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:58,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25370394] [2024-10-14 03:51:58,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25370394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:58,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:58,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:51:58,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180609274] [2024-10-14 03:51:58,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:58,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:51:58,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:58,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:51:58,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:51:58,019 INFO L87 Difference]: Start difference. First operand 45789 states and 64083 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:58,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:58,316 INFO L93 Difference]: Finished difference Result 92413 states and 129510 transitions. [2024-10-14 03:51:58,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:51:58,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-14 03:51:58,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:58,424 INFO L225 Difference]: With dead ends: 92413 [2024-10-14 03:51:58,425 INFO L226 Difference]: Without dead ends: 61644 [2024-10-14 03:51:58,469 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 03:51:58,470 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 183 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:58,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 360 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:51:58,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61644 states. [2024-10-14 03:51:59,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61644 to 41594. [2024-10-14 03:51:59,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41594 states, 41593 states have (on average 1.4004760416416224) internal successors, (58250), 41593 states have internal predecessors, (58250), 0 states have call successors, (0), 0 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 03:51:59,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41594 states to 41594 states and 58250 transitions. [2024-10-14 03:51:59,683 INFO L78 Accepts]: Start accepts. Automaton has 41594 states and 58250 transitions. Word has length 77 [2024-10-14 03:51:59,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:59,683 INFO L471 AbstractCegarLoop]: Abstraction has 41594 states and 58250 transitions. [2024-10-14 03:51:59,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:59,684 INFO L276 IsEmpty]: Start isEmpty. Operand 41594 states and 58250 transitions. [2024-10-14 03:51:59,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-14 03:51:59,691 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:59,692 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] [2024-10-14 03:51:59,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 03:51:59,692 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:59,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:59,693 INFO L85 PathProgramCache]: Analyzing trace with hash 745005614, now seen corresponding path program 1 times [2024-10-14 03:51:59,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:59,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797692598] [2024-10-14 03:51:59,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:59,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:59,753 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 03:51:59,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:59,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797692598] [2024-10-14 03:51:59,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797692598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:59,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:59,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:51:59,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970291039] [2024-10-14 03:51:59,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:59,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:51:59,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:59,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:51:59,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:51:59,756 INFO L87 Difference]: Start difference. First operand 41594 states and 58250 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 03:52:00,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:00,016 INFO L93 Difference]: Finished difference Result 88669 states and 124290 transitions. [2024-10-14 03:52:00,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:00,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-10-14 03:52:00,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:00,114 INFO L225 Difference]: With dead ends: 88669 [2024-10-14 03:52:00,114 INFO L226 Difference]: Without dead ends: 61388 [2024-10-14 03:52:00,152 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 03:52:00,152 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 181 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:00,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 424 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:00,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61388 states. [2024-10-14 03:52:01,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61388 to 61174. [2024-10-14 03:52:01,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61174 states, 61173 states have (on average 1.403936377159858) internal successors, (85883), 61173 states have internal predecessors, (85883), 0 states have call successors, (0), 0 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 03:52:01,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61174 states to 61174 states and 85883 transitions. [2024-10-14 03:52:01,234 INFO L78 Accepts]: Start accepts. Automaton has 61174 states and 85883 transitions. Word has length 80 [2024-10-14 03:52:01,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:01,235 INFO L471 AbstractCegarLoop]: Abstraction has 61174 states and 85883 transitions. [2024-10-14 03:52:01,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 03:52:01,235 INFO L276 IsEmpty]: Start isEmpty. Operand 61174 states and 85883 transitions. [2024-10-14 03:52:01,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-14 03:52:01,255 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:01,255 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:01,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 03:52:01,256 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:01,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:01,256 INFO L85 PathProgramCache]: Analyzing trace with hash -639780682, now seen corresponding path program 1 times [2024-10-14 03:52:01,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:01,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839657869] [2024-10-14 03:52:01,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:01,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:01,393 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:01,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:01,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839657869] [2024-10-14 03:52:01,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839657869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:01,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:01,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:01,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615426001] [2024-10-14 03:52:01,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:01,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:01,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:01,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:01,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:01,396 INFO L87 Difference]: Start difference. First operand 61174 states and 85883 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 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 03:52:01,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:01,820 INFO L93 Difference]: Finished difference Result 129158 states and 182532 transitions. [2024-10-14 03:52:01,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:01,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-10-14 03:52:01,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:01,934 INFO L225 Difference]: With dead ends: 129158 [2024-10-14 03:52:01,935 INFO L226 Difference]: Without dead ends: 93846 [2024-10-14 03:52:01,981 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 03:52:01,982 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 125 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:01,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 512 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:02,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93846 states. [2024-10-14 03:52:03,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93846 to 88841. [2024-10-14 03:52:03,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88841 states, 88840 states have (on average 1.4013957676722197) internal successors, (124500), 88840 states have internal predecessors, (124500), 0 states have call successors, (0), 0 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 03:52:03,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88841 states to 88841 states and 124500 transitions. [2024-10-14 03:52:03,612 INFO L78 Accepts]: Start accepts. Automaton has 88841 states and 124500 transitions. Word has length 90 [2024-10-14 03:52:03,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:03,612 INFO L471 AbstractCegarLoop]: Abstraction has 88841 states and 124500 transitions. [2024-10-14 03:52:03,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 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 03:52:03,613 INFO L276 IsEmpty]: Start isEmpty. Operand 88841 states and 124500 transitions. [2024-10-14 03:52:03,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-14 03:52:03,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:03,625 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:52:03,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 03:52:03,626 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:03,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:03,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1425466717, now seen corresponding path program 1 times [2024-10-14 03:52:03,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:03,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238962038] [2024-10-14 03:52:03,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:03,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:03,787 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:03,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:03,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238962038] [2024-10-14 03:52:03,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238962038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:03,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:03,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:52:03,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573285785] [2024-10-14 03:52:03,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:03,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:03,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:03,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:03,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:03,789 INFO L87 Difference]: Start difference. First operand 88841 states and 124500 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:05,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:05,266 INFO L93 Difference]: Finished difference Result 259731 states and 365017 transitions. [2024-10-14 03:52:05,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:52:05,266 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-10-14 03:52:05,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:05,519 INFO L225 Difference]: With dead ends: 259731 [2024-10-14 03:52:05,519 INFO L226 Difference]: Without dead ends: 177129 [2024-10-14 03:52:05,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:52:05,613 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 1653 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:05,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 450 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 03:52:05,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177129 states. [2024-10-14 03:52:07,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177129 to 101102. [2024-10-14 03:52:07,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101102 states, 101101 states have (on average 1.4040711763484042) internal successors, (141953), 101101 states have internal predecessors, (141953), 0 states have call successors, (0), 0 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 03:52:08,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101102 states to 101102 states and 141953 transitions. [2024-10-14 03:52:08,050 INFO L78 Accepts]: Start accepts. Automaton has 101102 states and 141953 transitions. Word has length 96 [2024-10-14 03:52:08,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:08,051 INFO L471 AbstractCegarLoop]: Abstraction has 101102 states and 141953 transitions. [2024-10-14 03:52:08,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:08,051 INFO L276 IsEmpty]: Start isEmpty. Operand 101102 states and 141953 transitions. [2024-10-14 03:52:08,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-14 03:52:08,068 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:08,068 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:08,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 03:52:08,068 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:08,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:08,069 INFO L85 PathProgramCache]: Analyzing trace with hash 2035860627, now seen corresponding path program 1 times [2024-10-14 03:52:08,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:08,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138011739] [2024-10-14 03:52:08,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:08,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:08,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:08,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:08,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138011739] [2024-10-14 03:52:08,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138011739] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:08,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:08,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:52:08,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917939445] [2024-10-14 03:52:08,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:08,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:08,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:08,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:08,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:08,304 INFO L87 Difference]: Start difference. First operand 101102 states and 141953 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:09,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:09,665 INFO L93 Difference]: Finished difference Result 339977 states and 478344 transitions. [2024-10-14 03:52:09,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:52:09,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-10-14 03:52:09,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:10,878 INFO L225 Difference]: With dead ends: 339977 [2024-10-14 03:52:10,878 INFO L226 Difference]: Without dead ends: 274143 [2024-10-14 03:52:10,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:52:10,954 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 1475 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:10,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 453 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:52:11,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274143 states. [2024-10-14 03:52:13,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274143 to 155212. [2024-10-14 03:52:13,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155212 states, 155211 states have (on average 1.4172513546075987) internal successors, (219973), 155211 states have internal predecessors, (219973), 0 states have call successors, (0), 0 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 03:52:13,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155212 states to 155212 states and 219973 transitions. [2024-10-14 03:52:13,932 INFO L78 Accepts]: Start accepts. Automaton has 155212 states and 219973 transitions. Word has length 97 [2024-10-14 03:52:13,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:13,933 INFO L471 AbstractCegarLoop]: Abstraction has 155212 states and 219973 transitions. [2024-10-14 03:52:13,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:13,933 INFO L276 IsEmpty]: Start isEmpty. Operand 155212 states and 219973 transitions. [2024-10-14 03:52:13,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-14 03:52:13,950 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:13,950 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:52:13,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 03:52:13,950 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:13,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:13,951 INFO L85 PathProgramCache]: Analyzing trace with hash -442541654, now seen corresponding path program 1 times [2024-10-14 03:52:13,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:13,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60459189] [2024-10-14 03:52:13,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:13,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:14,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 03:52:14,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:14,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60459189] [2024-10-14 03:52:14,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60459189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:14,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:14,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:14,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58891575] [2024-10-14 03:52:14,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:14,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:14,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:14,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:14,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:14,012 INFO L87 Difference]: Start difference. First operand 155212 states and 219973 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:14,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:14,637 INFO L93 Difference]: Finished difference Result 248457 states and 351961 transitions. [2024-10-14 03:52:14,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:14,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-10-14 03:52:14,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:15,730 INFO L225 Difference]: With dead ends: 248457 [2024-10-14 03:52:15,734 INFO L226 Difference]: Without dead ends: 144938 [2024-10-14 03:52:15,841 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 03:52:15,846 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 161 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:15,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 604 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:15,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144938 states. [2024-10-14 03:52:17,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144938 to 144936. [2024-10-14 03:52:17,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144936 states, 144935 states have (on average 1.409259323144858) internal successors, (204251), 144935 states have internal predecessors, (204251), 0 states have call successors, (0), 0 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 03:52:17,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144936 states to 144936 states and 204251 transitions. [2024-10-14 03:52:17,911 INFO L78 Accepts]: Start accepts. Automaton has 144936 states and 204251 transitions. Word has length 98 [2024-10-14 03:52:17,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:17,912 INFO L471 AbstractCegarLoop]: Abstraction has 144936 states and 204251 transitions. [2024-10-14 03:52:17,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:17,912 INFO L276 IsEmpty]: Start isEmpty. Operand 144936 states and 204251 transitions. [2024-10-14 03:52:17,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-14 03:52:17,932 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:17,932 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:52:17,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-14 03:52:17,932 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:17,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:17,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1283133538, now seen corresponding path program 1 times [2024-10-14 03:52:17,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:17,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345190021] [2024-10-14 03:52:17,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:17,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:17,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 03:52:17,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:17,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345190021] [2024-10-14 03:52:17,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345190021] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:17,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:17,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:17,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224950686] [2024-10-14 03:52:17,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:17,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:17,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:17,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:17,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:17,984 INFO L87 Difference]: Start difference. First operand 144936 states and 204251 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:19,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:19,494 INFO L93 Difference]: Finished difference Result 267932 states and 377974 transitions. [2024-10-14 03:52:19,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:19,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-14 03:52:19,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:19,854 INFO L225 Difference]: With dead ends: 267932 [2024-10-14 03:52:19,854 INFO L226 Difference]: Without dead ends: 174163 [2024-10-14 03:52:19,930 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 03:52:19,931 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 190 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:19,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 362 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:20,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174163 states. [2024-10-14 03:52:21,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174163 to 131171. [2024-10-14 03:52:21,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131171 states, 131170 states have (on average 1.4051917359152246) internal successors, (184319), 131170 states have internal predecessors, (184319), 0 states have call successors, (0), 0 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 03:52:21,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131171 states to 131171 states and 184319 transitions. [2024-10-14 03:52:21,801 INFO L78 Accepts]: Start accepts. Automaton has 131171 states and 184319 transitions. Word has length 99 [2024-10-14 03:52:21,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:21,802 INFO L471 AbstractCegarLoop]: Abstraction has 131171 states and 184319 transitions. [2024-10-14 03:52:21,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:21,802 INFO L276 IsEmpty]: Start isEmpty. Operand 131171 states and 184319 transitions. [2024-10-14 03:52:21,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 03:52:21,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:21,821 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:21,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-14 03:52:21,822 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:21,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:21,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1202729003, now seen corresponding path program 1 times [2024-10-14 03:52:21,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:21,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336867549] [2024-10-14 03:52:21,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:21,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:21,875 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 03:52:21,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:21,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336867549] [2024-10-14 03:52:21,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336867549] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:21,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:21,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:21,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230960980] [2024-10-14 03:52:21,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:21,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:21,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:21,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:21,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:21,878 INFO L87 Difference]: Start difference. First operand 131171 states and 184319 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)