./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label52.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label52.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 ddbc486d8837447489a9f02b29f9b0c86837a784a73349e3a6819c320282b326 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-10 23:25:04,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-10 23:25:04,518 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-10 23:25:04,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-10 23:25:04,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-10 23:25:04,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-10 23:25:04,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-10 23:25:04,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-10 23:25:04,546 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-10 23:25:04,547 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-10 23:25:04,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-10 23:25:04,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-10 23:25:04,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-10 23:25:04,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-10 23:25:04,550 INFO L153 SettingsManager]: * Use SBE=true [2024-10-10 23:25:04,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-10 23:25:04,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-10 23:25:04,551 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-10 23:25:04,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-10 23:25:04,551 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-10 23:25:04,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-10 23:25:04,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-10 23:25:04,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-10 23:25:04,554 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-10 23:25:04,555 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-10 23:25:04,555 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-10 23:25:04,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-10 23:25:04,555 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-10 23:25:04,555 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-10 23:25:04,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-10 23:25:04,556 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-10 23:25:04,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-10 23:25:04,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 23:25:04,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-10 23:25:04,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-10 23:25:04,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-10 23:25:04,556 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-10 23:25:04,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-10 23:25:04,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-10 23:25:04,557 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-10 23:25:04,557 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-10 23:25:04,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-10 23:25:04,558 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddbc486d8837447489a9f02b29f9b0c86837a784a73349e3a6819c320282b326 [2024-10-10 23:25:04,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-10 23:25:04,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-10 23:25:04,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-10 23:25:04,813 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-10 23:25:04,813 INFO L274 PluginConnector]: CDTParser initialized [2024-10-10 23:25:04,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label52.c [2024-10-10 23:25:06,173 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-10 23:25:06,584 INFO L384 CDTParser]: Found 1 translation units. [2024-10-10 23:25:06,585 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label52.c [2024-10-10 23:25:06,615 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/aaa4ffbe6/fa6b4bf8ad61412381f72aa0d0a084cc/FLAG6f2978782 [2024-10-10 23:25:06,742 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/aaa4ffbe6/fa6b4bf8ad61412381f72aa0d0a084cc [2024-10-10 23:25:06,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-10 23:25:06,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-10 23:25:06,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-10 23:25:06,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-10 23:25:06,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-10 23:25:06,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:25:06" (1/1) ... [2024-10-10 23:25:06,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@412c4ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:06, skipping insertion in model container [2024-10-10 23:25:06,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:25:06" (1/1) ... [2024-10-10 23:25:06,838 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-10 23:25:07,056 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/eca-rers2012/Problem12_label52.c[3994,4007] [2024-10-10 23:25:07,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 23:25:07,686 INFO L200 MainTranslator]: Completed pre-run [2024-10-10 23:25:07,699 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/eca-rers2012/Problem12_label52.c[3994,4007] [2024-10-10 23:25:08,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 23:25:08,019 INFO L204 MainTranslator]: Completed translation [2024-10-10 23:25:08,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08 WrapperNode [2024-10-10 23:25:08,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-10 23:25:08,020 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-10 23:25:08,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-10 23:25:08,021 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-10 23:25:08,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08" (1/1) ... [2024-10-10 23:25:08,078 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08" (1/1) ... [2024-10-10 23:25:08,489 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2024-10-10 23:25:08,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-10 23:25:08,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-10 23:25:08,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-10 23:25:08,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-10 23:25:08,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08" (1/1) ... [2024-10-10 23:25:08,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08" (1/1) ... [2024-10-10 23:25:08,603 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08" (1/1) ... [2024-10-10 23:25:08,877 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]. [2024-10-10 23:25:08,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08" (1/1) ... [2024-10-10 23:25:08,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08" (1/1) ... [2024-10-10 23:25:09,022 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08" (1/1) ... [2024-10-10 23:25:09,046 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08" (1/1) ... [2024-10-10 23:25:09,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08" (1/1) ... [2024-10-10 23:25:09,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08" (1/1) ... [2024-10-10 23:25:09,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-10 23:25:09,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-10 23:25:09,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-10 23:25:09,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-10 23:25:09,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08" (1/1) ... [2024-10-10 23:25:09,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 23:25:09,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:25:09,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-10 23:25:09,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-10 23:25:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-10 23:25:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-10 23:25:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-10 23:25:09,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-10 23:25:09,338 INFO L238 CfgBuilder]: Building ICFG [2024-10-10 23:25:09,340 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-10 23:25:12,910 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-10-10 23:25:12,910 INFO L287 CfgBuilder]: Performing block encoding [2024-10-10 23:25:12,950 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-10 23:25:12,950 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-10 23:25:12,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:25:12 BoogieIcfgContainer [2024-10-10 23:25:12,951 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-10 23:25:12,952 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-10 23:25:12,952 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-10 23:25:12,955 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-10 23:25:12,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 11:25:06" (1/3) ... [2024-10-10 23:25:12,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e391c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:25:12, skipping insertion in model container [2024-10-10 23:25:12,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:08" (2/3) ... [2024-10-10 23:25:12,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e391c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:25:12, skipping insertion in model container [2024-10-10 23:25:12,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:25:12" (3/3) ... [2024-10-10 23:25:12,957 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label52.c [2024-10-10 23:25:12,968 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-10 23:25:12,969 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-10 23:25:13,020 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-10 23:25:13,025 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;@27c83263, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-10 23:25:13,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-10 23:25:13,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-10 23:25:13,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:25:13,035 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] [2024-10-10 23:25:13,036 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:25:13,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:25:13,039 INFO L85 PathProgramCache]: Analyzing trace with hash 910151865, now seen corresponding path program 1 times [2024-10-10 23:25:13,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:25:13,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861819695] [2024-10-10 23:25:13,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:13,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:25:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:25:13,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:25:13,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861819695] [2024-10-10 23:25:13,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861819695] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:25:13,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:25:13,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:25:13,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878389361] [2024-10-10 23:25:13,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:25:13,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-10 23:25:13,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:25:13,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-10 23:25:13,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-10 23:25:13,193 INFO L87 Difference]: Start difference. First operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:13,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:25:13,269 INFO L93 Difference]: Finished difference Result 1511 states and 3005 transitions. [2024-10-10 23:25:13,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-10 23:25:13,275 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-10-10 23:25:13,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:25:13,287 INFO L225 Difference]: With dead ends: 1511 [2024-10-10 23:25:13,287 INFO L226 Difference]: Without dead ends: 754 [2024-10-10 23:25:13,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-10 23:25:13,293 INFO L432 NwaCegarLoop]: 1438 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-10 23:25:13,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-10 23:25:13,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-10-10 23:25:13,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2024-10-10 23:25:13,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 753 states have (on average 1.9096945551128819) internal successors, (1438), 753 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:13,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1438 transitions. [2024-10-10 23:25:13,357 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1438 transitions. Word has length 29 [2024-10-10 23:25:13,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:25:13,357 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 1438 transitions. [2024-10-10 23:25:13,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:13,358 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1438 transitions. [2024-10-10 23:25:13,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-10 23:25:13,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:25:13,358 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] [2024-10-10 23:25:13,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-10 23:25:13,359 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:25:13,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:25:13,359 INFO L85 PathProgramCache]: Analyzing trace with hash -624375063, now seen corresponding path program 1 times [2024-10-10 23:25:13,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:25:13,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719935628] [2024-10-10 23:25:13,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:13,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:25:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:13,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:25:13,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:25:13,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719935628] [2024-10-10 23:25:13,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719935628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:25:13,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:25:13,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:25:13,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587544279] [2024-10-10 23:25:13,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:25:13,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:25:13,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:25:13,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:25:13,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:25:13,525 INFO L87 Difference]: Start difference. First operand 754 states and 1438 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:17,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:25:17,243 INFO L93 Difference]: Finished difference Result 2258 states and 4311 transitions. [2024-10-10 23:25:17,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:25:17,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-10-10 23:25:17,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:25:17,249 INFO L225 Difference]: With dead ends: 2258 [2024-10-10 23:25:17,250 INFO L226 Difference]: Without dead ends: 1505 [2024-10-10 23:25:17,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:25:17,251 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 785 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2278 mSolverCounterSat, 998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 3276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 998 IncrementalHoareTripleChecker+Valid, 2278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-10 23:25:17,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 75 Invalid, 3276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [998 Valid, 2278 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-10 23:25:17,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2024-10-10 23:25:17,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1505. [2024-10-10 23:25:17,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 1.8703457446808511) internal successors, (2813), 1504 states have internal predecessors, (2813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:17,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2813 transitions. [2024-10-10 23:25:17,285 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2813 transitions. Word has length 29 [2024-10-10 23:25:17,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:25:17,285 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 2813 transitions. [2024-10-10 23:25:17,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:17,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2813 transitions. [2024-10-10 23:25:17,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-10 23:25:17,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:25:17,287 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-10 23:25:17,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-10 23:25:17,288 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:25:17,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:25:17,288 INFO L85 PathProgramCache]: Analyzing trace with hash -846901387, now seen corresponding path program 1 times [2024-10-10 23:25:17,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:25:17,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661849987] [2024-10-10 23:25:17,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:17,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:25:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:17,466 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:25:17,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:25:17,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661849987] [2024-10-10 23:25:17,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661849987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:25:17,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:25:17,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:25:17,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176912645] [2024-10-10 23:25:17,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:25:17,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:25:17,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:25:17,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:25:17,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:25:17,470 INFO L87 Difference]: Start difference. First operand 1505 states and 2813 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:20,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:25:20,313 INFO L93 Difference]: Finished difference Result 4513 states and 8437 transitions. [2024-10-10 23:25:20,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:25:20,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-10-10 23:25:20,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:25:20,325 INFO L225 Difference]: With dead ends: 4513 [2024-10-10 23:25:20,325 INFO L226 Difference]: Without dead ends: 3009 [2024-10-10 23:25:20,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:25:20,329 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 918 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2310 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 2860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-10 23:25:20,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 352 Invalid, 2860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2310 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-10 23:25:20,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3009 states. [2024-10-10 23:25:20,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3009 to 3007. [2024-10-10 23:25:20,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 3006 states have (on average 1.6533599467731204) internal successors, (4970), 3006 states have internal predecessors, (4970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:20,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 4970 transitions. [2024-10-10 23:25:20,379 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 4970 transitions. Word has length 102 [2024-10-10 23:25:20,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:25:20,379 INFO L471 AbstractCegarLoop]: Abstraction has 3007 states and 4970 transitions. [2024-10-10 23:25:20,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:20,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 4970 transitions. [2024-10-10 23:25:20,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-10 23:25:20,382 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:25:20,382 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-10 23:25:20,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-10 23:25:20,383 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:25:20,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:25:20,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1881985586, now seen corresponding path program 1 times [2024-10-10 23:25:20,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:25:20,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64431859] [2024-10-10 23:25:20,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:20,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:25:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:20,708 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:25:20,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:25:20,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64431859] [2024-10-10 23:25:20,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64431859] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:25:20,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:25:20,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:25:20,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723329127] [2024-10-10 23:25:20,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:25:20,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 23:25:20,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:25:20,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 23:25:20,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:25:20,712 INFO L87 Difference]: Start difference. First operand 3007 states and 4970 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:25,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:25:25,167 INFO L93 Difference]: Finished difference Result 8266 states and 13428 transitions. [2024-10-10 23:25:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:25:25,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-10-10 23:25:25,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:25:25,180 INFO L225 Difference]: With dead ends: 8266 [2024-10-10 23:25:25,180 INFO L226 Difference]: Without dead ends: 5260 [2024-10-10 23:25:25,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-10 23:25:25,183 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 2153 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4999 mSolverCounterSat, 851 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2153 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 5850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 851 IncrementalHoareTripleChecker+Valid, 4999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-10-10 23:25:25,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2153 Valid, 351 Invalid, 5850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [851 Valid, 4999 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-10-10 23:25:25,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5260 states. [2024-10-10 23:25:25,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5260 to 5260. [2024-10-10 23:25:25,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5260 states, 5259 states have (on average 1.510363186917665) internal successors, (7943), 5259 states have internal predecessors, (7943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:25,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5260 states to 5260 states and 7943 transitions. [2024-10-10 23:25:25,252 INFO L78 Accepts]: Start accepts. Automaton has 5260 states and 7943 transitions. Word has length 115 [2024-10-10 23:25:25,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:25:25,254 INFO L471 AbstractCegarLoop]: Abstraction has 5260 states and 7943 transitions. [2024-10-10 23:25:25,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:25,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5260 states and 7943 transitions. [2024-10-10 23:25:25,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-10 23:25:25,260 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:25:25,260 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:25:25,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-10 23:25:25,261 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:25:25,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:25:25,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1780431669, now seen corresponding path program 1 times [2024-10-10 23:25:25,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:25:25,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043389926] [2024-10-10 23:25:25,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:25,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:25:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-10 23:25:25,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:25:25,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043389926] [2024-10-10 23:25:25,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043389926] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:25:25,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184354277] [2024-10-10 23:25:25,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:25,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:25:25,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:25:25,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:25:25,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-10 23:25:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:25,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:25:25,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:25:25,918 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-10 23:25:25,918 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:25:25,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184354277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:25:25,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:25:25,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-10-10 23:25:25,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354007990] [2024-10-10 23:25:25,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:25:25,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:25:25,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:25:25,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:25:25,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-10 23:25:25,923 INFO L87 Difference]: Start difference. First operand 5260 states and 7943 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 2 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:28,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:25:28,705 INFO L93 Difference]: Finished difference Result 14274 states and 22312 transitions. [2024-10-10 23:25:28,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:25:28,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 2 states have internal predecessors, (144), 0 states have call successors, (0), 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 170 [2024-10-10 23:25:28,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:25:28,731 INFO L225 Difference]: With dead ends: 14274 [2024-10-10 23:25:28,732 INFO L226 Difference]: Without dead ends: 9766 [2024-10-10 23:25:28,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-10 23:25:28,740 INFO L432 NwaCegarLoop]: 657 mSDtfsCounter, 621 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2457 mSolverCounterSat, 585 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 3042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 585 IncrementalHoareTripleChecker+Valid, 2457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-10 23:25:28,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 664 Invalid, 3042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [585 Valid, 2457 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-10 23:25:28,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9766 states. [2024-10-10 23:25:28,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9766 to 9766. [2024-10-10 23:25:28,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9766 states, 9765 states have (on average 1.387916026625704) internal successors, (13553), 9765 states have internal predecessors, (13553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:28,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9766 states to 9766 states and 13553 transitions. [2024-10-10 23:25:28,909 INFO L78 Accepts]: Start accepts. Automaton has 9766 states and 13553 transitions. Word has length 170 [2024-10-10 23:25:28,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:25:28,911 INFO L471 AbstractCegarLoop]: Abstraction has 9766 states and 13553 transitions. [2024-10-10 23:25:28,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 2 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:28,911 INFO L276 IsEmpty]: Start isEmpty. Operand 9766 states and 13553 transitions. [2024-10-10 23:25:28,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-10-10 23:25:28,915 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:25:28,915 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:25:28,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-10 23:25:29,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:25:29,121 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:25:29,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:25:29,122 INFO L85 PathProgramCache]: Analyzing trace with hash 121748127, now seen corresponding path program 1 times [2024-10-10 23:25:29,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:25:29,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845763048] [2024-10-10 23:25:29,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:29,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:25:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:29,386 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:25:29,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:25:29,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845763048] [2024-10-10 23:25:29,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845763048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:25:29,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:25:29,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:25:29,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169630791] [2024-10-10 23:25:29,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:25:29,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 23:25:29,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:25:29,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 23:25:29,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:25:29,392 INFO L87 Difference]: Start difference. First operand 9766 states and 13553 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:32,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:25:32,441 INFO L93 Difference]: Finished difference Result 23323 states and 32176 transitions. [2024-10-10 23:25:32,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:25:32,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 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 186 [2024-10-10 23:25:32,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:25:32,475 INFO L225 Difference]: With dead ends: 23323 [2024-10-10 23:25:32,476 INFO L226 Difference]: Without dead ends: 14272 [2024-10-10 23:25:32,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:25:32,497 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 702 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 3108 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 3501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 3108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-10 23:25:32,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 705 Invalid, 3501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 3108 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-10 23:25:32,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14272 states. [2024-10-10 23:25:32,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14272 to 14272. [2024-10-10 23:25:32,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14272 states, 14271 states have (on average 1.2779763156050732) internal successors, (18238), 14271 states have internal predecessors, (18238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:32,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14272 states to 14272 states and 18238 transitions. [2024-10-10 23:25:32,743 INFO L78 Accepts]: Start accepts. Automaton has 14272 states and 18238 transitions. Word has length 186 [2024-10-10 23:25:32,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:25:32,744 INFO L471 AbstractCegarLoop]: Abstraction has 14272 states and 18238 transitions. [2024-10-10 23:25:32,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:32,745 INFO L276 IsEmpty]: Start isEmpty. Operand 14272 states and 18238 transitions. [2024-10-10 23:25:32,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-10-10 23:25:32,748 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:25:32,749 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:25:32,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-10 23:25:32,750 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:25:32,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:25:32,750 INFO L85 PathProgramCache]: Analyzing trace with hash -697443418, now seen corresponding path program 1 times [2024-10-10 23:25:32,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:25:32,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839092936] [2024-10-10 23:25:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:32,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:25:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:33,198 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 41 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:25:33,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:25:33,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839092936] [2024-10-10 23:25:33,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839092936] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:25:33,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607182355] [2024-10-10 23:25:33,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:33,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:25:33,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:25:33,202 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:25:33,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-10 23:25:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:33,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:25:33,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:25:33,443 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-10-10 23:25:33,444 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:25:33,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607182355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:25:33,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:25:33,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-10 23:25:33,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86167091] [2024-10-10 23:25:33,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:25:33,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:25:33,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:25:33,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:25:33,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-10 23:25:33,445 INFO L87 Difference]: Start difference. First operand 14272 states and 18238 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:36,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:25:36,284 INFO L93 Difference]: Finished difference Result 39057 states and 50793 transitions. [2024-10-10 23:25:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:25:36,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 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 260 [2024-10-10 23:25:36,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:25:36,323 INFO L225 Difference]: With dead ends: 39057 [2024-10-10 23:25:36,324 INFO L226 Difference]: Without dead ends: 25537 [2024-10-10 23:25:36,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-10 23:25:36,340 INFO L432 NwaCegarLoop]: 1281 mSDtfsCounter, 736 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 3018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-10 23:25:36,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1288 Invalid, 3018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-10 23:25:36,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25537 states. [2024-10-10 23:25:36,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25537 to 25537. [2024-10-10 23:25:36,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25537 states, 25536 states have (on average 1.2637844611528821) internal successors, (32272), 25536 states have internal predecessors, (32272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:36,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25537 states to 25537 states and 32272 transitions. [2024-10-10 23:25:36,609 INFO L78 Accepts]: Start accepts. Automaton has 25537 states and 32272 transitions. Word has length 260 [2024-10-10 23:25:36,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:25:36,609 INFO L471 AbstractCegarLoop]: Abstraction has 25537 states and 32272 transitions. [2024-10-10 23:25:36,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:36,610 INFO L276 IsEmpty]: Start isEmpty. Operand 25537 states and 32272 transitions. [2024-10-10 23:25:36,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-10-10 23:25:36,613 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:25:36,614 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:25:36,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-10 23:25:36,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:25:36,819 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:25:36,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:25:36,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1599686795, now seen corresponding path program 1 times [2024-10-10 23:25:36,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:25:36,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614096694] [2024-10-10 23:25:36,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:36,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:25:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:37,106 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-10-10 23:25:37,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:25:37,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614096694] [2024-10-10 23:25:37,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614096694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:25:37,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:25:37,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:25:37,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524958977] [2024-10-10 23:25:37,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:25:37,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:25:37,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:25:37,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:25:37,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:25:37,109 INFO L87 Difference]: Start difference. First operand 25537 states and 32272 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:39,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:25:39,585 INFO L93 Difference]: Finished difference Result 50322 states and 63787 transitions. [2024-10-10 23:25:39,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:25:39,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 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 318 [2024-10-10 23:25:39,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:25:39,619 INFO L225 Difference]: With dead ends: 50322 [2024-10-10 23:25:39,619 INFO L226 Difference]: Without dead ends: 25537 [2024-10-10 23:25:39,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:25:39,643 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 690 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 2697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-10 23:25:39,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 425 Invalid, 2697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-10 23:25:39,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25537 states. [2024-10-10 23:25:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25537 to 21782. [2024-10-10 23:25:39,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21782 states, 21781 states have (on average 1.1813966300904457) internal successors, (25732), 21781 states have internal predecessors, (25732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:39,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21782 states to 21782 states and 25732 transitions. [2024-10-10 23:25:39,877 INFO L78 Accepts]: Start accepts. Automaton has 21782 states and 25732 transitions. Word has length 318 [2024-10-10 23:25:39,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:25:39,878 INFO L471 AbstractCegarLoop]: Abstraction has 21782 states and 25732 transitions. [2024-10-10 23:25:39,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:39,878 INFO L276 IsEmpty]: Start isEmpty. Operand 21782 states and 25732 transitions. [2024-10-10 23:25:39,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-10-10 23:25:39,884 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:25:39,884 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:25:39,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-10 23:25:39,884 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:25:39,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:25:39,885 INFO L85 PathProgramCache]: Analyzing trace with hash 483795664, now seen corresponding path program 1 times [2024-10-10 23:25:39,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:25:39,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771596107] [2024-10-10 23:25:39,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:39,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:25:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:40,454 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 124 proven. 230 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-10 23:25:40,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:25:40,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771596107] [2024-10-10 23:25:40,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771596107] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:25:40,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380203640] [2024-10-10 23:25:40,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:40,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:25:40,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:25:40,459 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:25:40,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-10 23:25:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:40,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:25:40,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:25:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-10-10 23:25:40,869 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:25:40,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380203640] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:25:40,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:25:40,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-10 23:25:40,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560819224] [2024-10-10 23:25:40,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:25:40,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:25:40,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:25:40,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:25:40,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-10 23:25:40,872 INFO L87 Difference]: Start difference. First operand 21782 states and 25732 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:43,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:25:43,702 INFO L93 Difference]: Finished difference Result 58583 states and 70113 transitions. [2024-10-10 23:25:43,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:25:43,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 408 [2024-10-10 23:25:43,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:25:43,747 INFO L225 Difference]: With dead ends: 58583 [2024-10-10 23:25:43,748 INFO L226 Difference]: Without dead ends: 37553 [2024-10-10 23:25:43,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-10 23:25:43,770 INFO L432 NwaCegarLoop]: 935 mSDtfsCounter, 670 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 3054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 758 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-10 23:25:43,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 941 Invalid, 3054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [758 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-10 23:25:43,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37553 states. [2024-10-10 23:25:44,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37553 to 37553. [2024-10-10 23:25:44,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37553 states, 37552 states have (on average 1.1895504899872178) internal successors, (44670), 37552 states have internal predecessors, (44670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:44,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37553 states to 37553 states and 44670 transitions. [2024-10-10 23:25:44,249 INFO L78 Accepts]: Start accepts. Automaton has 37553 states and 44670 transitions. Word has length 408 [2024-10-10 23:25:44,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:25:44,250 INFO L471 AbstractCegarLoop]: Abstraction has 37553 states and 44670 transitions. [2024-10-10 23:25:44,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:44,250 INFO L276 IsEmpty]: Start isEmpty. Operand 37553 states and 44670 transitions. [2024-10-10 23:25:44,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-10-10 23:25:44,257 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:25:44,258 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:25:44,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-10 23:25:44,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:25:44,464 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:25:44,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:25:44,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1443239073, now seen corresponding path program 1 times [2024-10-10 23:25:44,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:25:44,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608065605] [2024-10-10 23:25:44,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:44,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:25:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:44,703 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-10 23:25:44,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:25:44,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608065605] [2024-10-10 23:25:44,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608065605] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:25:44,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:25:44,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:25:44,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864224018] [2024-10-10 23:25:44,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:25:44,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:25:44,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:25:44,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:25:44,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:25:44,705 INFO L87 Difference]: Start difference. First operand 37553 states and 44670 transitions. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:47,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:25:47,129 INFO L93 Difference]: Finished difference Result 95382 states and 114714 transitions. [2024-10-10 23:25:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:25:47,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 409 [2024-10-10 23:25:47,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:25:47,203 INFO L225 Difference]: With dead ends: 95382 [2024-10-10 23:25:47,204 INFO L226 Difference]: Without dead ends: 58581 [2024-10-10 23:25:47,236 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 [2024-10-10 23:25:47,237 INFO L432 NwaCegarLoop]: 1217 mSDtfsCounter, 703 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2265 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 2265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-10 23:25:47,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 1224 Invalid, 2573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 2265 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-10 23:25:47,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58581 states. [2024-10-10 23:25:47,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58581 to 57079. [2024-10-10 23:25:48,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57079 states, 57078 states have (on average 1.1586425593048109) internal successors, (66133), 57078 states have internal predecessors, (66133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:48,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57079 states to 57079 states and 66133 transitions. [2024-10-10 23:25:48,117 INFO L78 Accepts]: Start accepts. Automaton has 57079 states and 66133 transitions. Word has length 409 [2024-10-10 23:25:48,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:25:48,118 INFO L471 AbstractCegarLoop]: Abstraction has 57079 states and 66133 transitions. [2024-10-10 23:25:48,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:48,118 INFO L276 IsEmpty]: Start isEmpty. Operand 57079 states and 66133 transitions. [2024-10-10 23:25:48,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-10-10 23:25:48,127 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:25:48,127 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:25:48,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-10 23:25:48,128 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:25:48,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:25:48,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1461388193, now seen corresponding path program 1 times [2024-10-10 23:25:48,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:25:48,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102020337] [2024-10-10 23:25:48,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:48,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:25:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:48,449 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 465 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-10-10 23:25:48,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:25:48,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102020337] [2024-10-10 23:25:48,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102020337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:25:48,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:25:48,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:25:48,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385259232] [2024-10-10 23:25:48,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:25:48,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:25:48,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:25:48,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:25:48,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:25:48,452 INFO L87 Difference]: Start difference. First operand 57079 states and 66133 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:51,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:25:51,339 INFO L93 Difference]: Finished difference Result 149454 states and 174890 transitions. [2024-10-10 23:25:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:25:51,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 415 [2024-10-10 23:25:51,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:25:51,447 INFO L225 Difference]: With dead ends: 149454 [2024-10-10 23:25:51,448 INFO L226 Difference]: Without dead ends: 93127 [2024-10-10 23:25:51,486 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 [2024-10-10 23:25:51,487 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 708 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 2932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-10 23:25:51,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 532 Invalid, 2932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 2289 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-10 23:25:51,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93127 states. [2024-10-10 23:25:52,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93127 to 87119. [2024-10-10 23:25:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87119 states, 87118 states have (on average 1.1410730273881402) internal successors, (99408), 87118 states have internal predecessors, (99408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:52,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87119 states to 87119 states and 99408 transitions. [2024-10-10 23:25:52,691 INFO L78 Accepts]: Start accepts. Automaton has 87119 states and 99408 transitions. Word has length 415 [2024-10-10 23:25:52,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:25:52,692 INFO L471 AbstractCegarLoop]: Abstraction has 87119 states and 99408 transitions. [2024-10-10 23:25:52,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:52,692 INFO L276 IsEmpty]: Start isEmpty. Operand 87119 states and 99408 transitions. [2024-10-10 23:25:52,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-10-10 23:25:52,699 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:25:52,700 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:25:52,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-10 23:25:52,700 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:25:52,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:25:52,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1438316604, now seen corresponding path program 1 times [2024-10-10 23:25:52,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:25:52,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205340360] [2024-10-10 23:25:52,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:52,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:25:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:53,077 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-10-10 23:25:53,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:25:53,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205340360] [2024-10-10 23:25:53,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205340360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:25:53,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:25:53,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:25:53,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013035413] [2024-10-10 23:25:53,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:25:53,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:25:53,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:25:53,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:25:53,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:25:53,079 INFO L87 Difference]: Start difference. First operand 87119 states and 99408 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:55,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:25:55,890 INFO L93 Difference]: Finished difference Result 177241 states and 201912 transitions. [2024-10-10 23:25:55,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:25:55,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 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 417 [2024-10-10 23:25:55,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:25:56,015 INFO L225 Difference]: With dead ends: 177241 [2024-10-10 23:25:56,016 INFO L226 Difference]: Without dead ends: 90874 [2024-10-10 23:25:56,068 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 [2024-10-10 23:25:56,070 INFO L432 NwaCegarLoop]: 991 mSDtfsCounter, 761 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 2638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-10 23:25:56,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 997 Invalid, 2638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-10 23:25:56,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90874 states. [2024-10-10 23:25:57,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90874 to 81862. [2024-10-10 23:25:57,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81862 states, 81861 states have (on average 1.1081833840290247) internal successors, (90717), 81861 states have internal predecessors, (90717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:57,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81862 states to 81862 states and 90717 transitions. [2024-10-10 23:25:57,378 INFO L78 Accepts]: Start accepts. Automaton has 81862 states and 90717 transitions. Word has length 417 [2024-10-10 23:25:57,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:25:57,379 INFO L471 AbstractCegarLoop]: Abstraction has 81862 states and 90717 transitions. [2024-10-10 23:25:57,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:25:57,380 INFO L276 IsEmpty]: Start isEmpty. Operand 81862 states and 90717 transitions. [2024-10-10 23:25:57,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2024-10-10 23:25:57,396 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:25:57,397 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:25:57,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-10 23:25:57,397 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:25:57,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:25:57,397 INFO L85 PathProgramCache]: Analyzing trace with hash -770736047, now seen corresponding path program 1 times [2024-10-10 23:25:57,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:25:57,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829704764] [2024-10-10 23:25:57,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:25:57,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:25:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:25:57,849 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-10-10 23:25:57,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:25:57,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829704764] [2024-10-10 23:25:57,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829704764] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:25:57,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:25:57,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:25:57,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038085939] [2024-10-10 23:25:57,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:25:57,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:25:57,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:25:57,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:25:57,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:25:57,857 INFO L87 Difference]: Start difference. First operand 81862 states and 90717 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:26:00,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:26:00,911 INFO L93 Difference]: Finished difference Result 181747 states and 201972 transitions. [2024-10-10 23:26:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:26:00,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 441 [2024-10-10 23:26:00,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:26:01,042 INFO L225 Difference]: With dead ends: 181747 [2024-10-10 23:26:01,043 INFO L226 Difference]: Without dead ends: 100637 [2024-10-10 23:26:01,072 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 [2024-10-10 23:26:01,076 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 844 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-10 23:26:01,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 1114 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 2199 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-10 23:26:01,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100637 states. [2024-10-10 23:26:02,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100637 to 96882. [2024-10-10 23:26:02,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96882 states, 96881 states have (on average 1.0977591065327568) internal successors, (106352), 96881 states have internal predecessors, (106352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:26:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96882 states to 96882 states and 106352 transitions. [2024-10-10 23:26:02,181 INFO L78 Accepts]: Start accepts. Automaton has 96882 states and 106352 transitions. Word has length 441 [2024-10-10 23:26:02,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:26:02,181 INFO L471 AbstractCegarLoop]: Abstraction has 96882 states and 106352 transitions. [2024-10-10 23:26:02,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:26:02,182 INFO L276 IsEmpty]: Start isEmpty. Operand 96882 states and 106352 transitions. [2024-10-10 23:26:02,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-10-10 23:26:02,188 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:26:02,189 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-10 23:26:02,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-10 23:26:02,189 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:26:02,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:26:02,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2013043442, now seen corresponding path program 1 times [2024-10-10 23:26:02,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:26:02,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614934813] [2024-10-10 23:26:02,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:26:02,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:26:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:26:02,611 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 415 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-10-10 23:26:02,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:26:02,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614934813] [2024-10-10 23:26:02,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614934813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:26:02,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:26:02,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:26:02,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512041277] [2024-10-10 23:26:02,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:26:02,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:26:02,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:26:02,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:26:02,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:26:02,615 INFO L87 Difference]: Start difference. First operand 96882 states and 106352 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:26:05,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:26:05,551 INFO L93 Difference]: Finished difference Result 207281 states and 227111 transitions. [2024-10-10 23:26:05,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:26:05,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 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 479 [2024-10-10 23:26:05,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:26:05,685 INFO L225 Difference]: With dead ends: 207281 [2024-10-10 23:26:05,685 INFO L226 Difference]: Without dead ends: 104392 [2024-10-10 23:26:05,736 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 [2024-10-10 23:26:05,738 INFO L432 NwaCegarLoop]: 1345 mSDtfsCounter, 660 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1981 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 2366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 1981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-10 23:26:05,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 1352 Invalid, 2366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 1981 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-10 23:26:05,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104392 states. [2024-10-10 23:26:06,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104392 to 97633. [2024-10-10 23:26:06,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97633 states, 97632 states have (on average 1.0824217469682071) internal successors, (105679), 97632 states have internal predecessors, (105679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:26:07,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97633 states to 97633 states and 105679 transitions. [2024-10-10 23:26:07,076 INFO L78 Accepts]: Start accepts. Automaton has 97633 states and 105679 transitions. Word has length 479 [2024-10-10 23:26:07,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:26:07,077 INFO L471 AbstractCegarLoop]: Abstraction has 97633 states and 105679 transitions. [2024-10-10 23:26:07,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:26:07,077 INFO L276 IsEmpty]: Start isEmpty. Operand 97633 states and 105679 transitions. [2024-10-10 23:26:07,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2024-10-10 23:26:07,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:26:07,089 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:26:07,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-10 23:26:07,089 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:26:07,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:26:07,090 INFO L85 PathProgramCache]: Analyzing trace with hash 205143942, now seen corresponding path program 1 times [2024-10-10 23:26:07,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:26:07,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601053095] [2024-10-10 23:26:07,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:26:07,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:26:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:26:07,348 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 427 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-10-10 23:26:07,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:26:07,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601053095] [2024-10-10 23:26:07,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601053095] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:26:07,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:26:07,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:26:07,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957215186] [2024-10-10 23:26:07,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:26:07,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:26:07,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:26:07,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:26:07,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:26:07,350 INFO L87 Difference]: Start difference. First operand 97633 states and 105679 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:26:10,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:26:10,362 INFO L93 Difference]: Finished difference Result 223052 states and 242112 transitions. [2024-10-10 23:26:10,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:26:10,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 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 566 [2024-10-10 23:26:10,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:26:10,770 INFO L225 Difference]: With dead ends: 223052 [2024-10-10 23:26:10,770 INFO L226 Difference]: Without dead ends: 126171 [2024-10-10 23:26:10,807 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 [2024-10-10 23:26:10,808 INFO L432 NwaCegarLoop]: 1187 mSDtfsCounter, 694 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2090 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 2090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-10 23:26:10,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1194 Invalid, 2517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 2090 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-10 23:26:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126171 states. [2024-10-10 23:26:11,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126171 to 122416. [2024-10-10 23:26:11,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122416 states, 122415 states have (on average 1.0748601070130295) internal successors, (131579), 122415 states have internal predecessors, (131579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:26:12,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122416 states to 122416 states and 131579 transitions. [2024-10-10 23:26:12,033 INFO L78 Accepts]: Start accepts. Automaton has 122416 states and 131579 transitions. Word has length 566 [2024-10-10 23:26:12,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:26:12,034 INFO L471 AbstractCegarLoop]: Abstraction has 122416 states and 131579 transitions. [2024-10-10 23:26:12,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:26:12,034 INFO L276 IsEmpty]: Start isEmpty. Operand 122416 states and 131579 transitions. [2024-10-10 23:26:12,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2024-10-10 23:26:12,089 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:26:12,089 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:26:12,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-10 23:26:12,090 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:26:12,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:26:12,090 INFO L85 PathProgramCache]: Analyzing trace with hash 99622359, now seen corresponding path program 1 times [2024-10-10 23:26:12,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:26:12,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382492741] [2024-10-10 23:26:12,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:26:12,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:26:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:26:14,341 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 528 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-10-10 23:26:14,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:26:14,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382492741] [2024-10-10 23:26:14,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382492741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:26:14,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:26:14,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-10 23:26:14,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000560944] [2024-10-10 23:26:14,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:26:14,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-10 23:26:14,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:26:14,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-10 23:26:14,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-10 23:26:14,343 INFO L87 Difference]: Start difference. First operand 122416 states and 131579 transitions. Second operand has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:26:22,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:26:22,090 INFO L93 Difference]: Finished difference Result 330005 states and 353983 transitions. [2024-10-10 23:26:22,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-10 23:26:22,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 0 states have call successors, (0), 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 1034 [2024-10-10 23:26:22,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:26:22,343 INFO L225 Difference]: With dead ends: 330005 [2024-10-10 23:26:22,344 INFO L226 Difference]: Without dead ends: 206833 [2024-10-10 23:26:22,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-10-10 23:26:22,417 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 1943 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 8319 mSolverCounterSat, 2704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 11023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2704 IncrementalHoareTripleChecker+Valid, 8319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-10-10 23:26:22,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 618 Invalid, 11023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2704 Valid, 8319 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-10-10 23:26:22,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206833 states. [2024-10-10 23:26:24,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206833 to 123918. [2024-10-10 23:26:24,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123918 states, 123917 states have (on average 1.0733394126713849) internal successors, (133005), 123917 states have internal predecessors, (133005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:26:24,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123918 states to 123918 states and 133005 transitions. [2024-10-10 23:26:24,769 INFO L78 Accepts]: Start accepts. Automaton has 123918 states and 133005 transitions. Word has length 1034 [2024-10-10 23:26:24,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:26:24,771 INFO L471 AbstractCegarLoop]: Abstraction has 123918 states and 133005 transitions. [2024-10-10 23:26:24,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:26:24,771 INFO L276 IsEmpty]: Start isEmpty. Operand 123918 states and 133005 transitions. [2024-10-10 23:26:24,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1043 [2024-10-10 23:26:24,820 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:26:24,821 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:26:24,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-10 23:26:24,821 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:26:24,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:26:24,821 INFO L85 PathProgramCache]: Analyzing trace with hash 677437839, now seen corresponding path program 1 times [2024-10-10 23:26:24,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:26:24,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493879693] [2024-10-10 23:26:24,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:26:24,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:26:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:26:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 453 proven. 125 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-10-10 23:26:28,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:26:28,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493879693] [2024-10-10 23:26:28,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493879693] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:26:28,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837024347] [2024-10-10 23:26:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:26:28,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:26:28,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:26:28,362 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:26:28,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-10 23:26:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:26:28,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-10 23:26:28,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:26:30,532 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 509 proven. 69 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-10-10 23:26:30,534 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-10 23:26:31,308 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 441 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-10-10 23:26:31,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837024347] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-10 23:26:31,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-10 23:26:31,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8, 4] total 11 [2024-10-10 23:26:31,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413277373] [2024-10-10 23:26:31,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:26:31,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:26:31,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:26:31,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:26:31,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-10 23:26:31,310 INFO L87 Difference]: Start difference. First operand 123918 states and 133005 transitions. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:26:34,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:26:34,151 INFO L93 Difference]: Finished difference Result 274120 states and 294895 transitions. [2024-10-10 23:26:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:26:34,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 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 1042 [2024-10-10 23:26:34,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:26:34,340 INFO L225 Difference]: With dead ends: 274120 [2024-10-10 23:26:34,340 INFO L226 Difference]: Without dead ends: 150954 [2024-10-10 23:26:34,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2090 GetRequests, 2081 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-10 23:26:34,424 INFO L432 NwaCegarLoop]: 1261 mSDtfsCounter, 86 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-10 23:26:34,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 1268 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-10 23:26:34,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150954 states.