./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem03_label25.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem03_label25.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6036572cc480aba1617ffcf5de0f96e18071f7d06d6847cfbda5ebab0921c496 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:08:27,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:08:27,751 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:08:27,758 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:08:27,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:08:27,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:08:27,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:08:27,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:08:27,785 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:08:27,787 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:08:27,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:08:27,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:08:27,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:08:27,788 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:08:27,788 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:08:27,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:08:27,789 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:08:27,789 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:08:27,790 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:08:27,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:08:27,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:08:27,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:08:27,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:08:27,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:08:27,795 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:08:27,795 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:08:27,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:08:27,796 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:08:27,796 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:08:27,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:08:27,797 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:08:27,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:08:27,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:08:27,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:08:27,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:08:27,798 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:08:27,798 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:08:27,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:08:27,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:08:27,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:08:27,802 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:08:27,803 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:08:27,803 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6036572cc480aba1617ffcf5de0f96e18071f7d06d6847cfbda5ebab0921c496 [2024-11-16 03:08:28,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:08:28,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:08:28,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:08:28,092 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:08:28,093 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:08:28,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label25.c [2024-11-16 03:08:29,584 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:08:29,979 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:08:29,980 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label25.c [2024-11-16 03:08:30,001 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dce0ef86/3ee9b5a82af04db5ba882907839373a7/FLAG4208d961e [2024-11-16 03:08:30,021 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dce0ef86/3ee9b5a82af04db5ba882907839373a7 [2024-11-16 03:08:30,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:08:30,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:08:30,031 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:08:30,032 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:08:30,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:08:30,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:30,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43de7909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30, skipping insertion in model container [2024-11-16 03:08:30,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:30,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:08:30,654 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label25.c[58529,58542] [2024-11-16 03:08:30,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:08:30,707 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:08:30,883 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label25.c[58529,58542] [2024-11-16 03:08:30,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:08:30,917 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:08:30,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30 WrapperNode [2024-11-16 03:08:30,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:08:30,919 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:08:30,919 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:08:30,919 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:08:30,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:30,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:31,067 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2024-11-16 03:08:31,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:08:31,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:08:31,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:08:31,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:08:31,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:31,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:31,089 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:31,137 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 03:08:31,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:31,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:31,207 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:31,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:31,227 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:31,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:31,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:08:31,251 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:08:31,251 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:08:31,251 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:08:31,252 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30" (1/1) ... [2024-11-16 03:08:31,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:08:31,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:08:31,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 03:08:31,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 03:08:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:08:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:08:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:08:31,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:08:31,434 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:08:31,436 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:08:33,270 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-16 03:08:33,270 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:08:33,290 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:08:33,290 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:08:33,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:08:33 BoogieIcfgContainer [2024-11-16 03:08:33,291 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:08:33,293 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:08:33,293 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:08:33,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:08:33,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:08:30" (1/3) ... [2024-11-16 03:08:33,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36320995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:08:33, skipping insertion in model container [2024-11-16 03:08:33,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:08:30" (2/3) ... [2024-11-16 03:08:33,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36320995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:08:33, skipping insertion in model container [2024-11-16 03:08:33,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:08:33" (3/3) ... [2024-11-16 03:08:33,300 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label25.c [2024-11-16 03:08:33,318 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:08:33,318 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:08:33,431 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:08:33,445 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;@480352c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:08:33,445 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:08:33,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 305 states, 303 states have (on average 1.7227722772277227) internal successors, (522), 304 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:33,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-16 03:08:33,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:33,469 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:08:33,469 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:33,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:33,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1435179520, now seen corresponding path program 1 times [2024-11-16 03:08:33,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:33,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941102675] [2024-11-16 03:08:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:33,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:34,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:08:34,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:34,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941102675] [2024-11-16 03:08:34,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941102675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:34,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:08:34,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:08:34,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683693026] [2024-11-16 03:08:34,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:34,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:08:34,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:34,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:08:34,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:08:34,678 INFO L87 Difference]: Start difference. First operand has 305 states, 303 states have (on average 1.7227722772277227) internal successors, (522), 304 states have internal predecessors, (522), 0 states have call successors, (0), 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 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 2 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:35,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:35,896 INFO L93 Difference]: Finished difference Result 816 states and 1451 transitions. [2024-11-16 03:08:35,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:08:35,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 2 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2024-11-16 03:08:35,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:35,912 INFO L225 Difference]: With dead ends: 816 [2024-11-16 03:08:35,912 INFO L226 Difference]: Without dead ends: 447 [2024-11-16 03:08:35,916 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 [2024-11-16 03:08:35,919 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 74 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:35,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 235 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 03:08:35,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2024-11-16 03:08:35,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2024-11-16 03:08:35,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 446 states have (on average 1.4260089686098654) internal successors, (636), 446 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:35,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 636 transitions. [2024-11-16 03:08:35,992 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 636 transitions. Word has length 182 [2024-11-16 03:08:35,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:35,994 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 636 transitions. [2024-11-16 03:08:35,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 2 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:35,995 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 636 transitions. [2024-11-16 03:08:35,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-16 03:08:36,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:36,000 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 03:08:36,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:08:36,001 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:36,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:36,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1858431866, now seen corresponding path program 1 times [2024-11-16 03:08:36,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:36,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523251185] [2024-11-16 03:08:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:36,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:36,308 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:08:36,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:36,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523251185] [2024-11-16 03:08:36,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523251185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:36,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:08:36,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:08:36,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381272599] [2024-11-16 03:08:36,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:36,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:08:36,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:36,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:08:36,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:08:36,314 INFO L87 Difference]: Start difference. First operand 447 states and 636 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:37,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:37,161 INFO L93 Difference]: Finished difference Result 1320 states and 1886 transitions. [2024-11-16 03:08:37,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:08:37,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2024-11-16 03:08:37,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:37,165 INFO L225 Difference]: With dead ends: 1320 [2024-11-16 03:08:37,165 INFO L226 Difference]: Without dead ends: 875 [2024-11-16 03:08:37,167 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 [2024-11-16 03:08:37,168 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 247 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:37,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 97 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:08:37,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-11-16 03:08:37,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 861. [2024-11-16 03:08:37,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 860 states have (on average 1.3918604651162791) internal successors, (1197), 860 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:37,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1197 transitions. [2024-11-16 03:08:37,201 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1197 transitions. Word has length 191 [2024-11-16 03:08:37,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:37,202 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1197 transitions. [2024-11-16 03:08:37,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:37,202 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1197 transitions. [2024-11-16 03:08:37,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-16 03:08:37,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:37,206 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-16 03:08:37,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:08:37,207 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:37,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:37,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1346058293, now seen corresponding path program 1 times [2024-11-16 03:08:37,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:37,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078869365] [2024-11-16 03:08:37,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:37,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:37,586 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 03:08:37,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:37,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078869365] [2024-11-16 03:08:37,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078869365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:08:37,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510581269] [2024-11-16 03:08:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:37,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:08:37,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:08:37,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:08:37,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:08:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:37,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:08:37,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:08:37,853 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 03:08:37,854 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:08:37,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510581269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:37,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:08:37,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 03:08:37,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546185152] [2024-11-16 03:08:37,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:37,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:08:37,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:37,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:08:37,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:08:37,875 INFO L87 Difference]: Start difference. First operand 861 states and 1197 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:38,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:38,163 INFO L93 Difference]: Finished difference Result 2577 states and 3585 transitions. [2024-11-16 03:08:38,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:08:38,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 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 205 [2024-11-16 03:08:38,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:38,171 INFO L225 Difference]: With dead ends: 2577 [2024-11-16 03:08:38,171 INFO L226 Difference]: Without dead ends: 1718 [2024-11-16 03:08:38,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:08:38,174 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 361 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:38,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 605 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:08:38,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2024-11-16 03:08:38,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1714. [2024-11-16 03:08:38,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1713 states have (on average 1.3917104495037944) internal successors, (2384), 1713 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:38,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2384 transitions. [2024-11-16 03:08:38,220 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2384 transitions. Word has length 205 [2024-11-16 03:08:38,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:38,221 INFO L471 AbstractCegarLoop]: Abstraction has 1714 states and 2384 transitions. [2024-11-16 03:08:38,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:38,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2384 transitions. [2024-11-16 03:08:38,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-16 03:08:38,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:38,227 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:08:38,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 03:08:38,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:08:38,429 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:38,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:38,430 INFO L85 PathProgramCache]: Analyzing trace with hash 816086071, now seen corresponding path program 1 times [2024-11-16 03:08:38,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:38,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907082256] [2024-11-16 03:08:38,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:38,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:38,621 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-16 03:08:38,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:38,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907082256] [2024-11-16 03:08:38,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907082256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:38,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:08:38,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:08:38,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089471294] [2024-11-16 03:08:38,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:38,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:08:38,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:38,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:08:38,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:08:38,627 INFO L87 Difference]: Start difference. First operand 1714 states and 2384 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:39,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:39,082 INFO L93 Difference]: Finished difference Result 3386 states and 4710 transitions. [2024-11-16 03:08:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:08:39,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 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 213 [2024-11-16 03:08:39,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:39,089 INFO L225 Difference]: With dead ends: 3386 [2024-11-16 03:08:39,090 INFO L226 Difference]: Without dead ends: 1674 [2024-11-16 03:08:39,092 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 [2024-11-16 03:08:39,093 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 327 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:39,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 33 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:08:39,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2024-11-16 03:08:39,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1674. [2024-11-16 03:08:39,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 1673 states have (on average 1.350866706515242) internal successors, (2260), 1673 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:39,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 2260 transitions. [2024-11-16 03:08:39,143 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 2260 transitions. Word has length 213 [2024-11-16 03:08:39,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:39,144 INFO L471 AbstractCegarLoop]: Abstraction has 1674 states and 2260 transitions. [2024-11-16 03:08:39,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:39,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 2260 transitions. [2024-11-16 03:08:39,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-16 03:08:39,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:39,150 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-16 03:08:39,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:08:39,151 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:39,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:39,151 INFO L85 PathProgramCache]: Analyzing trace with hash -820506236, now seen corresponding path program 1 times [2024-11-16 03:08:39,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:39,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674896293] [2024-11-16 03:08:39,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:39,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:39,347 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 03:08:39,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:39,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674896293] [2024-11-16 03:08:39,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674896293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:39,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:08:39,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:08:39,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707208471] [2024-11-16 03:08:39,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:39,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:08:39,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:39,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:08:39,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:08:39,350 INFO L87 Difference]: Start difference. First operand 1674 states and 2260 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:40,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:40,136 INFO L93 Difference]: Finished difference Result 4987 states and 6735 transitions. [2024-11-16 03:08:40,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:08:40,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 214 [2024-11-16 03:08:40,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:40,148 INFO L225 Difference]: With dead ends: 4987 [2024-11-16 03:08:40,148 INFO L226 Difference]: Without dead ends: 3315 [2024-11-16 03:08:40,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:08:40,152 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 243 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:40,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 335 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:08:40,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3315 states. [2024-11-16 03:08:40,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3315 to 3312. [2024-11-16 03:08:40,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3312 states, 3311 states have (on average 1.2660827544548474) internal successors, (4192), 3311 states have internal predecessors, (4192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:40,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3312 states to 3312 states and 4192 transitions. [2024-11-16 03:08:40,265 INFO L78 Accepts]: Start accepts. Automaton has 3312 states and 4192 transitions. Word has length 214 [2024-11-16 03:08:40,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:40,266 INFO L471 AbstractCegarLoop]: Abstraction has 3312 states and 4192 transitions. [2024-11-16 03:08:40,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:40,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3312 states and 4192 transitions. [2024-11-16 03:08:40,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-16 03:08:40,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:40,274 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-16 03:08:40,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:08:40,275 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:40,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:40,276 INFO L85 PathProgramCache]: Analyzing trace with hash 601075011, now seen corresponding path program 1 times [2024-11-16 03:08:40,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:40,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124377568] [2024-11-16 03:08:40,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:40,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 03:08:40,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:40,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124377568] [2024-11-16 03:08:40,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124377568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:40,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:08:40,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:08:40,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129009969] [2024-11-16 03:08:40,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:40,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:08:40,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:40,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:08:40,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:08:40,539 INFO L87 Difference]: Start difference. First operand 3312 states and 4192 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:41,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:41,382 INFO L93 Difference]: Finished difference Result 8259 states and 10725 transitions. [2024-11-16 03:08:41,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:08:41,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 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 226 [2024-11-16 03:08:41,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:41,400 INFO L225 Difference]: With dead ends: 8259 [2024-11-16 03:08:41,401 INFO L226 Difference]: Without dead ends: 4949 [2024-11-16 03:08:41,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:08:41,409 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 194 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:41,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 374 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:08:41,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4949 states. [2024-11-16 03:08:41,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4949 to 4944. [2024-11-16 03:08:41,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4944 states, 4943 states have (on average 1.2146469755209388) internal successors, (6004), 4943 states have internal predecessors, (6004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:41,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4944 states to 4944 states and 6004 transitions. [2024-11-16 03:08:41,525 INFO L78 Accepts]: Start accepts. Automaton has 4944 states and 6004 transitions. Word has length 226 [2024-11-16 03:08:41,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:41,525 INFO L471 AbstractCegarLoop]: Abstraction has 4944 states and 6004 transitions. [2024-11-16 03:08:41,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:41,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4944 states and 6004 transitions. [2024-11-16 03:08:41,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-16 03:08:41,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:41,536 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-16 03:08:41,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:08:41,536 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:41,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:41,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1267087100, now seen corresponding path program 1 times [2024-11-16 03:08:41,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:41,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722800859] [2024-11-16 03:08:41,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:41,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 77 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-16 03:08:42,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:42,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722800859] [2024-11-16 03:08:42,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722800859] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:08:42,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15942499] [2024-11-16 03:08:42,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:42,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:08:42,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:08:42,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:08:42,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:08:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:43,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:08:43,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:08:43,183 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 03:08:43,183 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:08:43,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15942499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:43,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:08:43,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:08:43,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602859950] [2024-11-16 03:08:43,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:43,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:08:43,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:43,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:08:43,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:08:43,185 INFO L87 Difference]: Start difference. First operand 4944 states and 6004 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:43,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:43,994 INFO L93 Difference]: Finished difference Result 14787 states and 17957 transitions. [2024-11-16 03:08:43,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:08:43,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 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 253 [2024-11-16 03:08:43,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:44,028 INFO L225 Difference]: With dead ends: 14787 [2024-11-16 03:08:44,028 INFO L226 Difference]: Without dead ends: 9845 [2024-11-16 03:08:44,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:08:44,038 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 218 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:44,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 322 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:08:44,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9845 states. [2024-11-16 03:08:44,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9845 to 9840. [2024-11-16 03:08:44,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9840 states, 9839 states have (on average 1.1745096046346173) internal successors, (11556), 9839 states have internal predecessors, (11556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9840 states to 9840 states and 11556 transitions. [2024-11-16 03:08:44,350 INFO L78 Accepts]: Start accepts. Automaton has 9840 states and 11556 transitions. Word has length 253 [2024-11-16 03:08:44,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:44,350 INFO L471 AbstractCegarLoop]: Abstraction has 9840 states and 11556 transitions. [2024-11-16 03:08:44,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:44,351 INFO L276 IsEmpty]: Start isEmpty. Operand 9840 states and 11556 transitions. [2024-11-16 03:08:44,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-16 03:08:44,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:44,368 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:08:44,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 03:08:44,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-16 03:08:44,569 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:44,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:44,570 INFO L85 PathProgramCache]: Analyzing trace with hash 341165225, now seen corresponding path program 1 times [2024-11-16 03:08:44,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:44,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797559758] [2024-11-16 03:08:44,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:44,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:08:44,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:44,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797559758] [2024-11-16 03:08:44,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797559758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:44,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:08:44,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:08:44,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364148792] [2024-11-16 03:08:44,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:44,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:08:44,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:44,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:08:44,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:08:44,845 INFO L87 Difference]: Start difference. First operand 9840 states and 11556 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:45,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:45,660 INFO L93 Difference]: Finished difference Result 19683 states and 23119 transitions. [2024-11-16 03:08:45,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:08:45,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 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 261 [2024-11-16 03:08:45,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:45,714 INFO L225 Difference]: With dead ends: 19683 [2024-11-16 03:08:45,714 INFO L226 Difference]: Without dead ends: 9845 [2024-11-16 03:08:45,729 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 [2024-11-16 03:08:45,731 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 166 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:45,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 124 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:08:45,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9845 states. [2024-11-16 03:08:45,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9845 to 9840. [2024-11-16 03:08:45,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9840 states, 9839 states have (on average 1.1460514279906495) internal successors, (11276), 9839 states have internal predecessors, (11276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:45,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9840 states to 9840 states and 11276 transitions. [2024-11-16 03:08:45,975 INFO L78 Accepts]: Start accepts. Automaton has 9840 states and 11276 transitions. Word has length 261 [2024-11-16 03:08:45,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:45,976 INFO L471 AbstractCegarLoop]: Abstraction has 9840 states and 11276 transitions. [2024-11-16 03:08:45,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:45,977 INFO L276 IsEmpty]: Start isEmpty. Operand 9840 states and 11276 transitions. [2024-11-16 03:08:45,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-16 03:08:45,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:45,995 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:08:45,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:08:45,997 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:45,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:45,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1302019638, now seen corresponding path program 1 times [2024-11-16 03:08:45,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:45,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104091082] [2024-11-16 03:08:45,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:45,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:46,469 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 03:08:46,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:46,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104091082] [2024-11-16 03:08:46,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104091082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:46,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:08:46,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:08:46,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222480319] [2024-11-16 03:08:46,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:46,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:08:46,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:46,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:08:46,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:08:46,471 INFO L87 Difference]: Start difference. First operand 9840 states and 11276 transitions. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:47,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:47,339 INFO L93 Difference]: Finished difference Result 24382 states and 27905 transitions. [2024-11-16 03:08:47,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:08:47,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 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 278 [2024-11-16 03:08:47,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:47,372 INFO L225 Difference]: With dead ends: 24382 [2024-11-16 03:08:47,373 INFO L226 Difference]: Without dead ends: 14544 [2024-11-16 03:08:47,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:08:47,390 INFO L432 NwaCegarLoop]: 353 mSDtfsCounter, 136 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:47,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 372 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:08:47,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14544 states. [2024-11-16 03:08:47,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14544 to 14537. [2024-11-16 03:08:47,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14537 states, 14536 states have (on average 1.127958172812328) internal successors, (16396), 14536 states have internal predecessors, (16396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:47,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14537 states to 14537 states and 16396 transitions. [2024-11-16 03:08:47,676 INFO L78 Accepts]: Start accepts. Automaton has 14537 states and 16396 transitions. Word has length 278 [2024-11-16 03:08:47,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:47,677 INFO L471 AbstractCegarLoop]: Abstraction has 14537 states and 16396 transitions. [2024-11-16 03:08:47,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:47,677 INFO L276 IsEmpty]: Start isEmpty. Operand 14537 states and 16396 transitions. [2024-11-16 03:08:47,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-16 03:08:47,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:47,700 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:08:47,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:08:47,700 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:47,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:47,701 INFO L85 PathProgramCache]: Analyzing trace with hash -16354120, now seen corresponding path program 1 times [2024-11-16 03:08:47,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:47,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668054694] [2024-11-16 03:08:47,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:47,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-16 03:08:48,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:48,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668054694] [2024-11-16 03:08:48,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668054694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:48,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:08:48,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:08:48,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924306165] [2024-11-16 03:08:48,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:48,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:08:48,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:48,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:08:48,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:08:48,021 INFO L87 Difference]: Start difference. First operand 14537 states and 16396 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:48,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:48,768 INFO L93 Difference]: Finished difference Result 37876 states and 42670 transitions. [2024-11-16 03:08:48,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:08:48,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 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 290 [2024-11-16 03:08:48,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:48,816 INFO L225 Difference]: With dead ends: 37876 [2024-11-16 03:08:48,817 INFO L226 Difference]: Without dead ends: 23341 [2024-11-16 03:08:48,834 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 [2024-11-16 03:08:48,834 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 205 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:48,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 72 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:08:48,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23341 states. [2024-11-16 03:08:49,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23341 to 23338. [2024-11-16 03:08:49,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23338 states, 23337 states have (on average 1.1243947379697476) internal successors, (26240), 23337 states have internal predecessors, (26240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:49,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23338 states to 23338 states and 26240 transitions. [2024-11-16 03:08:49,164 INFO L78 Accepts]: Start accepts. Automaton has 23338 states and 26240 transitions. Word has length 290 [2024-11-16 03:08:49,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:49,165 INFO L471 AbstractCegarLoop]: Abstraction has 23338 states and 26240 transitions. [2024-11-16 03:08:49,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:49,165 INFO L276 IsEmpty]: Start isEmpty. Operand 23338 states and 26240 transitions. [2024-11-16 03:08:49,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-16 03:08:49,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:49,204 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, 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] [2024-11-16 03:08:49,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:08:49,205 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:49,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:49,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1999539011, now seen corresponding path program 1 times [2024-11-16 03:08:49,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:49,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082953061] [2024-11-16 03:08:49,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:49,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:49,427 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-16 03:08:49,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:49,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082953061] [2024-11-16 03:08:49,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082953061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:49,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:08:49,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:08:49,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835008813] [2024-11-16 03:08:49,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:49,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:08:49,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:49,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:08:49,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:08:49,430 INFO L87 Difference]: Start difference. First operand 23338 states and 26240 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:50,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:50,227 INFO L93 Difference]: Finished difference Result 46678 states and 52486 transitions. [2024-11-16 03:08:50,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:08:50,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 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 292 [2024-11-16 03:08:50,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:50,270 INFO L225 Difference]: With dead ends: 46678 [2024-11-16 03:08:50,270 INFO L226 Difference]: Without dead ends: 23342 [2024-11-16 03:08:50,296 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 [2024-11-16 03:08:50,297 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 223 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:50,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 106 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:08:50,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23342 states. [2024-11-16 03:08:50,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23342 to 23338. [2024-11-16 03:08:50,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23338 states, 23337 states have (on average 1.1090542914684836) internal successors, (25882), 23337 states have internal predecessors, (25882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:50,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23338 states to 23338 states and 25882 transitions. [2024-11-16 03:08:50,715 INFO L78 Accepts]: Start accepts. Automaton has 23338 states and 25882 transitions. Word has length 292 [2024-11-16 03:08:50,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:50,715 INFO L471 AbstractCegarLoop]: Abstraction has 23338 states and 25882 transitions. [2024-11-16 03:08:50,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:50,716 INFO L276 IsEmpty]: Start isEmpty. Operand 23338 states and 25882 transitions. [2024-11-16 03:08:50,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-16 03:08:50,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:50,750 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:08:50,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:08:50,751 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:50,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:50,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1353490572, now seen corresponding path program 1 times [2024-11-16 03:08:50,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:50,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528581944] [2024-11-16 03:08:50,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:50,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:51,180 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:08:51,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:51,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528581944] [2024-11-16 03:08:51,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528581944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:51,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:08:51,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:08:51,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941112250] [2024-11-16 03:08:51,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:51,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:08:51,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:51,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:08:51,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:08:51,183 INFO L87 Difference]: Start difference. First operand 23338 states and 25882 transitions. Second operand has 4 states, 4 states have (on average 73.25) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:52,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:52,306 INFO L93 Difference]: Finished difference Result 49145 states and 54674 transitions. [2024-11-16 03:08:52,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:08:52,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.25) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 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 293 [2024-11-16 03:08:52,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:52,344 INFO L225 Difference]: With dead ends: 49145 [2024-11-16 03:08:52,344 INFO L226 Difference]: Without dead ends: 25809 [2024-11-16 03:08:52,366 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 [2024-11-16 03:08:52,367 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 327 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:52,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 97 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 03:08:52,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25809 states. [2024-11-16 03:08:52,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25809 to 23338. [2024-11-16 03:08:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23338 states, 23337 states have (on average 1.1090542914684836) internal successors, (25882), 23337 states have internal predecessors, (25882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:52,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23338 states to 23338 states and 25882 transitions. [2024-11-16 03:08:52,845 INFO L78 Accepts]: Start accepts. Automaton has 23338 states and 25882 transitions. Word has length 293 [2024-11-16 03:08:52,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:52,846 INFO L471 AbstractCegarLoop]: Abstraction has 23338 states and 25882 transitions. [2024-11-16 03:08:52,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.25) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:52,846 INFO L276 IsEmpty]: Start isEmpty. Operand 23338 states and 25882 transitions. [2024-11-16 03:08:52,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-11-16 03:08:52,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:52,869 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:08:52,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:08:52,869 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:52,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:52,870 INFO L85 PathProgramCache]: Analyzing trace with hash 2022466059, now seen corresponding path program 1 times [2024-11-16 03:08:52,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:52,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230862364] [2024-11-16 03:08:52,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:52,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:53,305 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 72 proven. 7 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-16 03:08:53,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:53,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230862364] [2024-11-16 03:08:53,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230862364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:08:53,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622974800] [2024-11-16 03:08:53,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:53,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:08:53,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:08:53,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:08:53,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 03:08:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:53,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:08:53,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:08:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-16 03:08:53,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:08:53,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622974800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:53,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:08:53,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:08:53,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362767274] [2024-11-16 03:08:53,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:53,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:08:53,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:53,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:08:53,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:08:53,758 INFO L87 Difference]: Start difference. First operand 23338 states and 25882 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:54,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:54,442 INFO L93 Difference]: Finished difference Result 59759 states and 66452 transitions. [2024-11-16 03:08:54,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:08:54,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 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 298 [2024-11-16 03:08:54,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:54,479 INFO L225 Difference]: With dead ends: 59759 [2024-11-16 03:08:54,479 INFO L226 Difference]: Without dead ends: 36423 [2024-11-16 03:08:54,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:08:54,501 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 51 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:54,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 177 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:08:54,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36423 states. [2024-11-16 03:08:54,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36423 to 27014. [2024-11-16 03:08:54,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27014 states, 27013 states have (on average 1.1171658090548995) internal successors, (30178), 27013 states have internal predecessors, (30178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:55,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27014 states to 27014 states and 30178 transitions. [2024-11-16 03:08:55,040 INFO L78 Accepts]: Start accepts. Automaton has 27014 states and 30178 transitions. Word has length 298 [2024-11-16 03:08:55,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:55,041 INFO L471 AbstractCegarLoop]: Abstraction has 27014 states and 30178 transitions. [2024-11-16 03:08:55,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:55,042 INFO L276 IsEmpty]: Start isEmpty. Operand 27014 states and 30178 transitions. [2024-11-16 03:08:55,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-16 03:08:55,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:55,077 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:08:55,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 03:08:55,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:08:55,279 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:55,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:55,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1700214304, now seen corresponding path program 1 times [2024-11-16 03:08:55,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:55,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927185861] [2024-11-16 03:08:55,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:55,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:55,845 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2024-11-16 03:08:55,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:55,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927185861] [2024-11-16 03:08:55,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927185861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:55,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:08:55,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:08:55,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675600653] [2024-11-16 03:08:55,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:55,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:08:55,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:55,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:08:55,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:08:55,848 INFO L87 Difference]: Start difference. First operand 27014 states and 30178 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:56,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:56,571 INFO L93 Difference]: Finished difference Result 54024 states and 60352 transitions. [2024-11-16 03:08:56,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:08:56,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 385 [2024-11-16 03:08:56,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:56,600 INFO L225 Difference]: With dead ends: 54024 [2024-11-16 03:08:56,600 INFO L226 Difference]: Without dead ends: 27012 [2024-11-16 03:08:56,616 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 [2024-11-16 03:08:56,616 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 589 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:56,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 61 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:08:56,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27012 states. [2024-11-16 03:08:56,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27012 to 27012. [2024-11-16 03:08:56,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27012 states, 27011 states have (on average 1.10695642516012) internal successors, (29900), 27011 states have internal predecessors, (29900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:57,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27012 states to 27012 states and 29900 transitions. [2024-11-16 03:08:57,017 INFO L78 Accepts]: Start accepts. Automaton has 27012 states and 29900 transitions. Word has length 385 [2024-11-16 03:08:57,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:57,018 INFO L471 AbstractCegarLoop]: Abstraction has 27012 states and 29900 transitions. [2024-11-16 03:08:57,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:57,018 INFO L276 IsEmpty]: Start isEmpty. Operand 27012 states and 29900 transitions. [2024-11-16 03:08:57,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-11-16 03:08:57,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:57,058 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:08:57,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:08:57,058 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:57,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:57,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1087814128, now seen corresponding path program 1 times [2024-11-16 03:08:57,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:57,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277619740] [2024-11-16 03:08:57,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:57,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:57,812 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 153 proven. 7 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-11-16 03:08:57,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:08:57,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277619740] [2024-11-16 03:08:57,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277619740] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:08:57,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383402590] [2024-11-16 03:08:57,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:57,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:08:57,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:08:57,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:08:57,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 03:08:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:08:58,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:08:58,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:08:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-11-16 03:08:58,257 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:08:58,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383402590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:08:58,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:08:58,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:08:58,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938393255] [2024-11-16 03:08:58,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:08:58,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:08:58,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:08:58,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:08:58,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:08:58,259 INFO L87 Difference]: Start difference. First operand 27012 states and 29900 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:59,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:08:59,016 INFO L93 Difference]: Finished difference Result 62614 states and 69292 transitions. [2024-11-16 03:08:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:08:59,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 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 394 [2024-11-16 03:08:59,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:08:59,060 INFO L225 Difference]: With dead ends: 62614 [2024-11-16 03:08:59,060 INFO L226 Difference]: Without dead ends: 35604 [2024-11-16 03:08:59,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:08:59,079 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 163 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:08:59,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 159 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:08:59,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35604 states. [2024-11-16 03:08:59,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35604 to 35596. [2024-11-16 03:08:59,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35596 states, 35595 states have (on average 1.093636746734092) internal successors, (38928), 35595 states have internal predecessors, (38928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:59,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35596 states to 35596 states and 38928 transitions. [2024-11-16 03:08:59,587 INFO L78 Accepts]: Start accepts. Automaton has 35596 states and 38928 transitions. Word has length 394 [2024-11-16 03:08:59,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:08:59,587 INFO L471 AbstractCegarLoop]: Abstraction has 35596 states and 38928 transitions. [2024-11-16 03:08:59,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:08:59,587 INFO L276 IsEmpty]: Start isEmpty. Operand 35596 states and 38928 transitions. [2024-11-16 03:08:59,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2024-11-16 03:08:59,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:08:59,615 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 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] [2024-11-16 03:08:59,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 03:08:59,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-16 03:08:59,816 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:08:59,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:08:59,816 INFO L85 PathProgramCache]: Analyzing trace with hash 309479548, now seen corresponding path program 1 times [2024-11-16 03:08:59,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:08:59,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287017853] [2024-11-16 03:08:59,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:08:59,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:08:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:00,478 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 128 proven. 7 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2024-11-16 03:09:00,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:00,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287017853] [2024-11-16 03:09:00,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287017853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:00,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653164603] [2024-11-16 03:09:00,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:00,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:00,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:00,486 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:09:00,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 03:09:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:00,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:09:00,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:01,084 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-16 03:09:01,084 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:01,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653164603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:01,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:01,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:09:01,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790586275] [2024-11-16 03:09:01,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:01,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:01,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:01,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:01,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:01,086 INFO L87 Difference]: Start difference. First operand 35596 states and 38928 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:01,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:01,800 INFO L93 Difference]: Finished difference Result 70378 states and 76968 transitions. [2024-11-16 03:09:01,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:01,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 418 [2024-11-16 03:09:01,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:01,850 INFO L225 Difference]: With dead ends: 70378 [2024-11-16 03:09:01,850 INFO L226 Difference]: Without dead ends: 34784 [2024-11-16 03:09:01,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:01,878 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 82 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:01,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 292 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:09:01,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34784 states. [2024-11-16 03:09:02,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34784 to 33552. [2024-11-16 03:09:02,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33552 states, 33551 states have (on average 1.0886411731393997) internal successors, (36525), 33551 states have internal predecessors, (36525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:02,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33552 states to 33552 states and 36525 transitions. [2024-11-16 03:09:02,493 INFO L78 Accepts]: Start accepts. Automaton has 33552 states and 36525 transitions. Word has length 418 [2024-11-16 03:09:02,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:02,494 INFO L471 AbstractCegarLoop]: Abstraction has 33552 states and 36525 transitions. [2024-11-16 03:09:02,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:02,494 INFO L276 IsEmpty]: Start isEmpty. Operand 33552 states and 36525 transitions. [2024-11-16 03:09:02,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-16 03:09:02,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:02,528 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:02,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 03:09:02,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-16 03:09:02,730 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:02,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:02,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1613287485, now seen corresponding path program 1 times [2024-11-16 03:09:02,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:02,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44953269] [2024-11-16 03:09:02,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:02,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:03,419 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 189 proven. 7 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-16 03:09:03,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:03,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44953269] [2024-11-16 03:09:03,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44953269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:03,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745670819] [2024-11-16 03:09:03,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:03,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:03,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:03,423 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:09:03,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 03:09:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:03,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:09:03,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:03,762 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-11-16 03:09:03,762 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:03,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745670819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:03,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:03,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:09:03,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884706148] [2024-11-16 03:09:03,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:03,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:03,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:03,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:03,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:03,764 INFO L87 Difference]: Start difference. First operand 33552 states and 36525 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:04,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:04,169 INFO L93 Difference]: Finished difference Result 98570 states and 107282 transitions. [2024-11-16 03:09:04,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:04,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 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 461 [2024-11-16 03:09:04,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:04,244 INFO L225 Difference]: With dead ends: 98570 [2024-11-16 03:09:04,244 INFO L226 Difference]: Without dead ends: 65020 [2024-11-16 03:09:04,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:04,274 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 298 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:04,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 869 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:09:04,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65020 states. [2024-11-16 03:09:05,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65020 to 65013. [2024-11-16 03:09:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65013 states, 65012 states have (on average 1.0803697778871593) internal successors, (70237), 65012 states have internal predecessors, (70237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:05,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65013 states to 65013 states and 70237 transitions. [2024-11-16 03:09:05,542 INFO L78 Accepts]: Start accepts. Automaton has 65013 states and 70237 transitions. Word has length 461 [2024-11-16 03:09:05,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:05,543 INFO L471 AbstractCegarLoop]: Abstraction has 65013 states and 70237 transitions. [2024-11-16 03:09:05,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:05,543 INFO L276 IsEmpty]: Start isEmpty. Operand 65013 states and 70237 transitions. [2024-11-16 03:09:05,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-11-16 03:09:05,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:05,609 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:05,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-16 03:09:05,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-16 03:09:05,810 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:05,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:05,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1015476851, now seen corresponding path program 1 times [2024-11-16 03:09:05,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:05,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386378193] [2024-11-16 03:09:05,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:05,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-11-16 03:09:06,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:06,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386378193] [2024-11-16 03:09:06,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386378193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:06,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:06,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:06,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445768047] [2024-11-16 03:09:06,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:06,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:06,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:06,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:06,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:06,162 INFO L87 Difference]: Start difference. First operand 65013 states and 70237 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 2 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:06,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:06,932 INFO L93 Difference]: Finished difference Result 194621 states and 210259 transitions. [2024-11-16 03:09:06,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:06,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 2 states have internal predecessors, (311), 0 states have call successors, (0), 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 475 [2024-11-16 03:09:06,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:07,087 INFO L225 Difference]: With dead ends: 194621 [2024-11-16 03:09:07,087 INFO L226 Difference]: Without dead ends: 129610 [2024-11-16 03:09:07,142 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 [2024-11-16 03:09:07,143 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 211 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:07,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 527 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:09:07,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129610 states. [2024-11-16 03:09:09,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129610 to 129605. [2024-11-16 03:09:09,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129605 states, 129604 states have (on average 1.0801364155427302) internal successors, (139990), 129604 states have internal predecessors, (139990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:09,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129605 states to 129605 states and 139990 transitions. [2024-11-16 03:09:09,754 INFO L78 Accepts]: Start accepts. Automaton has 129605 states and 139990 transitions. Word has length 475 [2024-11-16 03:09:09,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:09,754 INFO L471 AbstractCegarLoop]: Abstraction has 129605 states and 139990 transitions. [2024-11-16 03:09:09,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 2 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:09,754 INFO L276 IsEmpty]: Start isEmpty. Operand 129605 states and 139990 transitions. [2024-11-16 03:09:09,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-11-16 03:09:09,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:09,812 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2024-11-16 03:09:09,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 03:09:09,812 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:09,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:09,813 INFO L85 PathProgramCache]: Analyzing trace with hash 244030807, now seen corresponding path program 1 times [2024-11-16 03:09:09,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:09,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569924955] [2024-11-16 03:09:09,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:09,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:10,549 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 180 proven. 7 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2024-11-16 03:09:10,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:10,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569924955] [2024-11-16 03:09:10,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569924955] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:10,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708323280] [2024-11-16 03:09:10,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:10,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:10,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:10,551 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:09:10,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 03:09:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:10,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 03:09:10,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:10,885 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2024-11-16 03:09:10,885 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:10,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708323280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:10,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:10,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:09:10,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308186709] [2024-11-16 03:09:10,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:10,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:09:10,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:10,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:09:10,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:10,891 INFO L87 Difference]: Start difference. First operand 129605 states and 139990 transitions. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:12,606 INFO L93 Difference]: Finished difference Result 358683 states and 387950 transitions. [2024-11-16 03:09:12,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:09:12,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 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 475 [2024-11-16 03:09:12,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:12,899 INFO L225 Difference]: With dead ends: 358683 [2024-11-16 03:09:12,899 INFO L226 Difference]: Without dead ends: 229080 [2024-11-16 03:09:12,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:12,987 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 521 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:12,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 318 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:09:13,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229080 states. [2024-11-16 03:09:16,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229080 to 211109. [2024-11-16 03:09:16,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211109 states, 211108 states have (on average 1.0834170187771188) internal successors, (228718), 211108 states have internal predecessors, (228718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:17,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211109 states to 211109 states and 228718 transitions. [2024-11-16 03:09:17,443 INFO L78 Accepts]: Start accepts. Automaton has 211109 states and 228718 transitions. Word has length 475 [2024-11-16 03:09:17,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:17,444 INFO L471 AbstractCegarLoop]: Abstraction has 211109 states and 228718 transitions. [2024-11-16 03:09:17,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:17,444 INFO L276 IsEmpty]: Start isEmpty. Operand 211109 states and 228718 transitions. [2024-11-16 03:09:17,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2024-11-16 03:09:17,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:17,592 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2024-11-16 03:09:17,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 03:09:17,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:17,794 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:17,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:17,794 INFO L85 PathProgramCache]: Analyzing trace with hash -470519667, now seen corresponding path program 1 times [2024-11-16 03:09:17,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:17,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885925149] [2024-11-16 03:09:17,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:17,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:19,698 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 215 proven. 7 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2024-11-16 03:09:19,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:19,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885925149] [2024-11-16 03:09:19,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885925149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:19,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65289550] [2024-11-16 03:09:19,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:19,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:19,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:19,701 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:09:19,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 03:09:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:19,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:09:19,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:20,056 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 516 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-11-16 03:09:20,057 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:20,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65289550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:20,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:20,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:09:20,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507482844] [2024-11-16 03:09:20,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:20,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:20,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:20,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:20,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:20,059 INFO L87 Difference]: Start difference. First operand 211109 states and 228718 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:21,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:21,999 INFO L93 Difference]: Finished difference Result 587857 states and 636159 transitions. [2024-11-16 03:09:22,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:22,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 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 491 [2024-11-16 03:09:22,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:22,522 INFO L225 Difference]: With dead ends: 587857 [2024-11-16 03:09:22,522 INFO L226 Difference]: Without dead ends: 376750 [2024-11-16 03:09:22,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:22,649 INFO L432 NwaCegarLoop]: 584 mSDtfsCounter, 202 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:22,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 811 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:09:23,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376750 states. [2024-11-16 03:09:28,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376750 to 376725. [2024-11-16 03:09:29,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376725 states, 376724 states have (on average 1.0731623151166372) internal successors, (404286), 376724 states have internal predecessors, (404286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:29,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376725 states to 376725 states and 404286 transitions. [2024-11-16 03:09:29,686 INFO L78 Accepts]: Start accepts. Automaton has 376725 states and 404286 transitions. Word has length 491 [2024-11-16 03:09:29,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:29,686 INFO L471 AbstractCegarLoop]: Abstraction has 376725 states and 404286 transitions. [2024-11-16 03:09:29,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:29,687 INFO L276 IsEmpty]: Start isEmpty. Operand 376725 states and 404286 transitions. [2024-11-16 03:09:29,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2024-11-16 03:09:29,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:29,815 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:29,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-16 03:09:30,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:30,017 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:30,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:30,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1360427735, now seen corresponding path program 1 times [2024-11-16 03:09:30,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:30,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817218350] [2024-11-16 03:09:30,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:30,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:31,274 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-11-16 03:09:31,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:31,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817218350] [2024-11-16 03:09:31,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817218350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:31,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:31,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:09:31,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307521818] [2024-11-16 03:09:31,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:31,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:31,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:31,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:31,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:31,277 INFO L87 Difference]: Start difference. First operand 376725 states and 404286 transitions. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:35,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:35,262 INFO L93 Difference]: Finished difference Result 797212 states and 857200 transitions. [2024-11-16 03:09:35,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:35,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 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 497 [2024-11-16 03:09:35,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:36,128 INFO L225 Difference]: With dead ends: 797212 [2024-11-16 03:09:36,129 INFO L226 Difference]: Without dead ends: 418041 [2024-11-16 03:09:36,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:36,396 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 87 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:36,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 344 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 03:09:36,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418041 states.