./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.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/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a61d3db55f61e1c69c316c83f1e37b4c9c56a755bd5e8fcd2da0d467aefc9f7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:19:31,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:19:31,544 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:19:31,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:19:31,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:19:31,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:19:31,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:19:31,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:19:31,578 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:19:31,578 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:19:31,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:19:31,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:19:31,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:19:31,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:19:31,584 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:19:31,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:19:31,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:19:31,585 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:19:31,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:19:31,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:19:31,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:19:31,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:19:31,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:19:31,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:19:31,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:19:31,588 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:19:31,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:19:31,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:19:31,589 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:19:31,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:19:31,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:19:31,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:19:31,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:19:31,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:19:31,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:19:31,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:19:31,591 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:19:31,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:19:31,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:19:31,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:19:31,592 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:19:31,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:19:31,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a61d3db55f61e1c69c316c83f1e37b4c9c56a755bd5e8fcd2da0d467aefc9f7 [2024-11-16 08:19:31,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:19:31,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:19:31,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:19:31,892 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:19:31,892 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:19:31,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2024-11-16 08:19:33,400 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:19:33,614 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:19:33,615 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2024-11-16 08:19:33,625 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf2ce813d/538a233743714443a5d2b155af40e811/FLAG9b1f6cc91 [2024-11-16 08:19:33,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf2ce813d/538a233743714443a5d2b155af40e811 [2024-11-16 08:19:33,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:19:33,642 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:19:33,643 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:19:33,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:19:33,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:19:33,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:19:33" (1/1) ... [2024-11-16 08:19:33,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee1db3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:33, skipping insertion in model container [2024-11-16 08:19:33,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:19:33" (1/1) ... [2024-11-16 08:19:33,681 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:19:34,005 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c[14373,14386] [2024-11-16 08:19:34,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:19:34,029 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:19:34,111 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c[14373,14386] [2024-11-16 08:19:34,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:19:34,144 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:19:34,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34 WrapperNode [2024-11-16 08:19:34,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:19:34,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:19:34,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:19:34,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:19:34,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34" (1/1) ... [2024-11-16 08:19:34,170 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34" (1/1) ... [2024-11-16 08:19:34,209 INFO L138 Inliner]: procedures = 22, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 495 [2024-11-16 08:19:34,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:19:34,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:19:34,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:19:34,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:19:34,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34" (1/1) ... [2024-11-16 08:19:34,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34" (1/1) ... [2024-11-16 08:19:34,232 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34" (1/1) ... [2024-11-16 08:19:34,249 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 08:19:34,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34" (1/1) ... [2024-11-16 08:19:34,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34" (1/1) ... [2024-11-16 08:19:34,259 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34" (1/1) ... [2024-11-16 08:19:34,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34" (1/1) ... [2024-11-16 08:19:34,262 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34" (1/1) ... [2024-11-16 08:19:34,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34" (1/1) ... [2024-11-16 08:19:34,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:19:34,269 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:19:34,272 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:19:34,273 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:19:34,273 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34" (1/1) ... [2024-11-16 08:19:34,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:19:34,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:19:34,317 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 08:19:34,319 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 08:19:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:19:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:19:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:19:34,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:19:34,487 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:19:34,488 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:19:35,044 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-16 08:19:35,044 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:19:35,065 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:19:35,065 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:19:35,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:19:35 BoogieIcfgContainer [2024-11-16 08:19:35,066 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:19:35,067 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:19:35,067 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:19:35,070 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:19:35,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:19:33" (1/3) ... [2024-11-16 08:19:35,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771ccf58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:19:35, skipping insertion in model container [2024-11-16 08:19:35,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:34" (2/3) ... [2024-11-16 08:19:35,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771ccf58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:19:35, skipping insertion in model container [2024-11-16 08:19:35,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:19:35" (3/3) ... [2024-11-16 08:19:35,074 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2024-11-16 08:19:35,093 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:19:35,093 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:19:35,151 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:19:35,158 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;@1c24c61b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:19:35,158 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:19:35,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 135 states have (on average 1.7481481481481482) internal successors, (236), 136 states have internal predecessors, (236), 0 states have call successors, (0), 0 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 08:19:35,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-16 08:19:35,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:35,174 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] [2024-11-16 08:19:35,175 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:35,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:35,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1218059604, now seen corresponding path program 1 times [2024-11-16 08:19:35,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:35,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336585600] [2024-11-16 08:19:35,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:35,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:35,536 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 08:19:35,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:35,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336585600] [2024-11-16 08:19:35,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336585600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:35,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:35,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 08:19:35,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640330420] [2024-11-16 08:19:35,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:35,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 08:19:35,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:35,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 08:19:35,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:19:35,571 INFO L87 Difference]: Start difference. First operand has 137 states, 135 states have (on average 1.7481481481481482) internal successors, (236), 136 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 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 08:19:35,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:35,607 INFO L93 Difference]: Finished difference Result 214 states and 363 transitions. [2024-11-16 08:19:35,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 08:19:35,609 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2024-11-16 08:19:35,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:35,621 INFO L225 Difference]: With dead ends: 214 [2024-11-16 08:19:35,621 INFO L226 Difference]: Without dead ends: 132 [2024-11-16 08:19:35,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:19:35,630 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:35,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:19:35,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-16 08:19:35,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-16 08:19:35,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.7404580152671756) internal successors, (228), 131 states have internal predecessors, (228), 0 states have call successors, (0), 0 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 08:19:35,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 228 transitions. [2024-11-16 08:19:35,680 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 228 transitions. Word has length 39 [2024-11-16 08:19:35,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:35,680 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 228 transitions. [2024-11-16 08:19:35,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 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 08:19:35,681 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 228 transitions. [2024-11-16 08:19:35,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-16 08:19:35,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:35,682 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] [2024-11-16 08:19:35,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:19:35,683 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:35,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:35,684 INFO L85 PathProgramCache]: Analyzing trace with hash -819996685, now seen corresponding path program 1 times [2024-11-16 08:19:35,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:35,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315338678] [2024-11-16 08:19:35,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:35,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:36,019 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 08:19:36,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:36,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315338678] [2024-11-16 08:19:36,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315338678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:36,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:36,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:19:36,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400695002] [2024-11-16 08:19:36,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:36,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:19:36,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:36,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:19:36,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:19:36,026 INFO L87 Difference]: Start difference. First operand 132 states and 228 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 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 08:19:36,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:36,143 INFO L93 Difference]: Finished difference Result 208 states and 352 transitions. [2024-11-16 08:19:36,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:19:36,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2024-11-16 08:19:36,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:36,147 INFO L225 Difference]: With dead ends: 208 [2024-11-16 08:19:36,147 INFO L226 Difference]: Without dead ends: 132 [2024-11-16 08:19:36,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 08:19:36,149 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:36,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 869 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:36,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-16 08:19:36,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-16 08:19:36,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.5114503816793894) internal successors, (198), 131 states have internal predecessors, (198), 0 states have call successors, (0), 0 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 08:19:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 198 transitions. [2024-11-16 08:19:36,162 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 198 transitions. Word has length 39 [2024-11-16 08:19:36,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:36,166 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 198 transitions. [2024-11-16 08:19:36,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 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 08:19:36,167 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 198 transitions. [2024-11-16 08:19:36,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:19:36,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:36,168 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:19:36,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:19:36,169 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:36,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:36,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1086003424, now seen corresponding path program 1 times [2024-11-16 08:19:36,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:36,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600097054] [2024-11-16 08:19:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:36,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:36,348 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 08:19:36,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:36,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600097054] [2024-11-16 08:19:36,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600097054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:36,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:36,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:19:36,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703664500] [2024-11-16 08:19:36,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:36,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:19:36,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:36,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:19:36,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:19:36,355 INFO L87 Difference]: Start difference. First operand 132 states and 198 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:36,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:36,429 INFO L93 Difference]: Finished difference Result 262 states and 412 transitions. [2024-11-16 08:19:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:19:36,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-16 08:19:36,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:36,434 INFO L225 Difference]: With dead ends: 262 [2024-11-16 08:19:36,434 INFO L226 Difference]: Without dead ends: 190 [2024-11-16 08:19:36,436 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 08:19:36,437 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 93 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:36,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 341 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:36,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-16 08:19:36,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2024-11-16 08:19:36,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 186 states have (on average 1.532258064516129) internal successors, (285), 186 states have internal predecessors, (285), 0 states have call successors, (0), 0 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 08:19:36,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 285 transitions. [2024-11-16 08:19:36,463 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 285 transitions. Word has length 68 [2024-11-16 08:19:36,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:36,464 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 285 transitions. [2024-11-16 08:19:36,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:36,464 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 285 transitions. [2024-11-16 08:19:36,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 08:19:36,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:36,466 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] [2024-11-16 08:19:36,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:19:36,467 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:36,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:36,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1943313445, now seen corresponding path program 1 times [2024-11-16 08:19:36,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:36,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716901817] [2024-11-16 08:19:36,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:36,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:36,616 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 08:19:36,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:36,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716901817] [2024-11-16 08:19:36,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716901817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:36,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:36,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:19:36,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311092017] [2024-11-16 08:19:36,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:36,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:19:36,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:36,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:19:36,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:19:36,620 INFO L87 Difference]: Start difference. First operand 187 states and 285 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 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 08:19:36,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:36,665 INFO L93 Difference]: Finished difference Result 425 states and 671 transitions. [2024-11-16 08:19:36,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:19:36,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-16 08:19:36,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:36,669 INFO L225 Difference]: With dead ends: 425 [2024-11-16 08:19:36,670 INFO L226 Difference]: Without dead ends: 298 [2024-11-16 08:19:36,670 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 08:19:36,671 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 95 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:36,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 360 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:19:36,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-16 08:19:36,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 295. [2024-11-16 08:19:36,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 294 states have (on average 1.564625850340136) internal successors, (460), 294 states have internal predecessors, (460), 0 states have call successors, (0), 0 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 08:19:36,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 460 transitions. [2024-11-16 08:19:36,688 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 460 transitions. Word has length 70 [2024-11-16 08:19:36,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:36,688 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 460 transitions. [2024-11-16 08:19:36,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 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 08:19:36,689 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 460 transitions. [2024-11-16 08:19:36,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 08:19:36,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:36,691 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] [2024-11-16 08:19:36,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:19:36,691 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:36,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:36,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1642963914, now seen corresponding path program 1 times [2024-11-16 08:19:36,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:36,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200313491] [2024-11-16 08:19:36,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:36,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:36,806 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 08:19:36,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:36,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200313491] [2024-11-16 08:19:36,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200313491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:36,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:36,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:19:36,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251256816] [2024-11-16 08:19:36,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:36,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:19:36,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:36,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:19:36,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:19:36,808 INFO L87 Difference]: Start difference. First operand 295 states and 460 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 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 08:19:36,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:36,851 INFO L93 Difference]: Finished difference Result 733 states and 1168 transitions. [2024-11-16 08:19:36,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:19:36,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-16 08:19:36,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:36,853 INFO L225 Difference]: With dead ends: 733 [2024-11-16 08:19:36,854 INFO L226 Difference]: Without dead ends: 498 [2024-11-16 08:19:36,854 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 08:19:36,859 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 89 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:36,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 361 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:19:36,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-16 08:19:36,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 495. [2024-11-16 08:19:36,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 494 states have (on average 1.5789473684210527) internal successors, (780), 494 states have internal predecessors, (780), 0 states have call successors, (0), 0 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 08:19:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 780 transitions. [2024-11-16 08:19:36,883 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 780 transitions. Word has length 72 [2024-11-16 08:19:36,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:36,884 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 780 transitions. [2024-11-16 08:19:36,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 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 08:19:36,884 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 780 transitions. [2024-11-16 08:19:36,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 08:19:36,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:36,886 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:19:36,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:19:36,887 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:36,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:36,887 INFO L85 PathProgramCache]: Analyzing trace with hash -324560847, now seen corresponding path program 1 times [2024-11-16 08:19:36,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:36,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43781525] [2024-11-16 08:19:36,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:36,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:37,085 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 08:19:37,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:37,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43781525] [2024-11-16 08:19:37,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43781525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:37,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:37,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:19:37,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110786376] [2024-11-16 08:19:37,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:37,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:19:37,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:37,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:19:37,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:19:37,088 INFO L87 Difference]: Start difference. First operand 495 states and 780 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:37,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:37,289 INFO L93 Difference]: Finished difference Result 2449 states and 3968 transitions. [2024-11-16 08:19:37,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:19:37,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-16 08:19:37,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:37,302 INFO L225 Difference]: With dead ends: 2449 [2024-11-16 08:19:37,303 INFO L226 Difference]: Without dead ends: 2014 [2024-11-16 08:19:37,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:19:37,305 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 786 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:37,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1121 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:37,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2024-11-16 08:19:37,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 899. [2024-11-16 08:19:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 898 states have (on average 1.599109131403118) internal successors, (1436), 898 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 08:19:37,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1436 transitions. [2024-11-16 08:19:37,346 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1436 transitions. Word has length 74 [2024-11-16 08:19:37,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:37,347 INFO L471 AbstractCegarLoop]: Abstraction has 899 states and 1436 transitions. [2024-11-16 08:19:37,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:37,347 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1436 transitions. [2024-11-16 08:19:37,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 08:19:37,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:37,349 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] [2024-11-16 08:19:37,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:19:37,349 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:37,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:37,350 INFO L85 PathProgramCache]: Analyzing trace with hash 190946715, now seen corresponding path program 1 times [2024-11-16 08:19:37,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:37,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680135539] [2024-11-16 08:19:37,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:37,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:37,466 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 08:19:37,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:37,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680135539] [2024-11-16 08:19:37,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680135539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:37,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:37,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:19:37,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077376504] [2024-11-16 08:19:37,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:37,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:19:37,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:37,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:19:37,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:19:37,468 INFO L87 Difference]: Start difference. First operand 899 states and 1436 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 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 08:19:37,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:37,574 INFO L93 Difference]: Finished difference Result 3246 states and 5236 transitions. [2024-11-16 08:19:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:19:37,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-16 08:19:37,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:37,583 INFO L225 Difference]: With dead ends: 3246 [2024-11-16 08:19:37,584 INFO L226 Difference]: Without dead ends: 2407 [2024-11-16 08:19:37,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:19:37,587 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 345 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:37,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 637 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:37,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2407 states. [2024-11-16 08:19:37,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2407 to 1643. [2024-11-16 08:19:37,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1643 states, 1642 states have (on average 1.599878197320341) internal successors, (2627), 1642 states have internal predecessors, (2627), 0 states have call successors, (0), 0 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 08:19:37,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2627 transitions. [2024-11-16 08:19:37,635 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2627 transitions. Word has length 75 [2024-11-16 08:19:37,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:37,636 INFO L471 AbstractCegarLoop]: Abstraction has 1643 states and 2627 transitions. [2024-11-16 08:19:37,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 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 08:19:37,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2627 transitions. [2024-11-16 08:19:37,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 08:19:37,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:37,638 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:19:37,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:19:37,639 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:37,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:37,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1065446349, now seen corresponding path program 1 times [2024-11-16 08:19:37,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:37,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192106374] [2024-11-16 08:19:37,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:37,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:37,762 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 08:19:37,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:37,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192106374] [2024-11-16 08:19:37,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192106374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:37,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:37,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:19:37,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938701932] [2024-11-16 08:19:37,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:37,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:19:37,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:37,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:19:37,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:19:37,766 INFO L87 Difference]: Start difference. First operand 1643 states and 2627 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:37,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:37,872 INFO L93 Difference]: Finished difference Result 4824 states and 7774 transitions. [2024-11-16 08:19:37,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:19:37,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-16 08:19:37,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:37,885 INFO L225 Difference]: With dead ends: 4824 [2024-11-16 08:19:37,885 INFO L226 Difference]: Without dead ends: 3241 [2024-11-16 08:19:37,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:19:37,890 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 344 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:37,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 634 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:37,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3241 states. [2024-11-16 08:19:37,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3241 to 2425. [2024-11-16 08:19:37,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2425 states, 2424 states have (on average 1.5957095709570956) internal successors, (3868), 2424 states have internal predecessors, (3868), 0 states have call successors, (0), 0 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 08:19:37,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2425 states to 2425 states and 3868 transitions. [2024-11-16 08:19:37,961 INFO L78 Accepts]: Start accepts. Automaton has 2425 states and 3868 transitions. Word has length 76 [2024-11-16 08:19:37,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:37,962 INFO L471 AbstractCegarLoop]: Abstraction has 2425 states and 3868 transitions. [2024-11-16 08:19:37,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:37,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2425 states and 3868 transitions. [2024-11-16 08:19:37,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 08:19:37,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:37,964 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:19:37,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:19:37,964 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:37,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:37,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2134597153, now seen corresponding path program 1 times [2024-11-16 08:19:37,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:37,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475792234] [2024-11-16 08:19:37,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:37,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:38,039 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 08:19:38,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:38,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475792234] [2024-11-16 08:19:38,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475792234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:38,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:38,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:19:38,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223408358] [2024-11-16 08:19:38,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:38,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:19:38,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:38,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:19:38,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:19:38,041 INFO L87 Difference]: Start difference. First operand 2425 states and 3868 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:38,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:38,109 INFO L93 Difference]: Finished difference Result 4948 states and 7894 transitions. [2024-11-16 08:19:38,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:19:38,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-16 08:19:38,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:38,123 INFO L225 Difference]: With dead ends: 4948 [2024-11-16 08:19:38,124 INFO L226 Difference]: Without dead ends: 3577 [2024-11-16 08:19:38,127 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 08:19:38,127 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 90 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:38,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 408 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:19:38,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2024-11-16 08:19:38,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3574. [2024-11-16 08:19:38,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3574 states, 3573 states have (on average 1.5768261964735517) internal successors, (5634), 3573 states have internal predecessors, (5634), 0 states have call successors, (0), 0 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 08:19:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 5634 transitions. [2024-11-16 08:19:38,226 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 5634 transitions. Word has length 76 [2024-11-16 08:19:38,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:38,226 INFO L471 AbstractCegarLoop]: Abstraction has 3574 states and 5634 transitions. [2024-11-16 08:19:38,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:38,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 5634 transitions. [2024-11-16 08:19:38,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 08:19:38,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:38,228 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:19:38,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:19:38,228 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:38,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:38,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1879021249, now seen corresponding path program 1 times [2024-11-16 08:19:38,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:38,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806614963] [2024-11-16 08:19:38,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:38,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:38,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:19:38,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:38,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806614963] [2024-11-16 08:19:38,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806614963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:38,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:38,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:19:38,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900174699] [2024-11-16 08:19:38,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:38,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:19:38,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:38,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:19:38,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:19:38,314 INFO L87 Difference]: Start difference. First operand 3574 states and 5634 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:38,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:38,396 INFO L93 Difference]: Finished difference Result 7770 states and 12242 transitions. [2024-11-16 08:19:38,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:19:38,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-16 08:19:38,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:38,417 INFO L225 Difference]: With dead ends: 7770 [2024-11-16 08:19:38,417 INFO L226 Difference]: Without dead ends: 5303 [2024-11-16 08:19:38,422 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 08:19:38,423 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 96 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:38,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 433 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:19:38,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5303 states. [2024-11-16 08:19:38,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5303 to 5300. [2024-11-16 08:19:38,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5300 states, 5299 states have (on average 1.5570862426872996) internal successors, (8251), 5299 states have internal predecessors, (8251), 0 states have call successors, (0), 0 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 08:19:38,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5300 states to 5300 states and 8251 transitions. [2024-11-16 08:19:38,614 INFO L78 Accepts]: Start accepts. Automaton has 5300 states and 8251 transitions. Word has length 76 [2024-11-16 08:19:38,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:38,614 INFO L471 AbstractCegarLoop]: Abstraction has 5300 states and 8251 transitions. [2024-11-16 08:19:38,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:38,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5300 states and 8251 transitions. [2024-11-16 08:19:38,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 08:19:38,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:38,616 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:19:38,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:19:38,616 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:38,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:38,617 INFO L85 PathProgramCache]: Analyzing trace with hash -715052897, now seen corresponding path program 1 times [2024-11-16 08:19:38,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:38,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237600037] [2024-11-16 08:19:38,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:38,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:38,690 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 08:19:38,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:38,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237600037] [2024-11-16 08:19:38,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237600037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:38,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:38,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:19:38,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138226743] [2024-11-16 08:19:38,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:38,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:19:38,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:38,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:19:38,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:19:38,692 INFO L87 Difference]: Start difference. First operand 5300 states and 8251 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:38,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:38,814 INFO L93 Difference]: Finished difference Result 12782 states and 19961 transitions. [2024-11-16 08:19:38,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:19:38,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-16 08:19:38,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:38,841 INFO L225 Difference]: With dead ends: 12782 [2024-11-16 08:19:38,841 INFO L226 Difference]: Without dead ends: 7561 [2024-11-16 08:19:38,851 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 08:19:38,851 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 102 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:38,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 451 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:19:38,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7561 states. [2024-11-16 08:19:39,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7561 to 7558. [2024-11-16 08:19:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7558 states, 7557 states have (on average 1.5556437739843854) internal successors, (11756), 7557 states have internal predecessors, (11756), 0 states have call successors, (0), 0 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 08:19:39,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7558 states to 7558 states and 11756 transitions. [2024-11-16 08:19:39,087 INFO L78 Accepts]: Start accepts. Automaton has 7558 states and 11756 transitions. Word has length 76 [2024-11-16 08:19:39,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:39,087 INFO L471 AbstractCegarLoop]: Abstraction has 7558 states and 11756 transitions. [2024-11-16 08:19:39,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:39,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7558 states and 11756 transitions. [2024-11-16 08:19:39,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 08:19:39,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:39,089 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:19:39,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:19:39,089 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:39,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:39,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1416183971, now seen corresponding path program 1 times [2024-11-16 08:19:39,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:39,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28186071] [2024-11-16 08:19:39,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:39,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:39,180 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 08:19:39,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:39,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28186071] [2024-11-16 08:19:39,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28186071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:39,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:39,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:19:39,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828953761] [2024-11-16 08:19:39,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:39,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:19:39,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:39,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:19:39,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:19:39,182 INFO L87 Difference]: Start difference. First operand 7558 states and 11756 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:39,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:39,500 INFO L93 Difference]: Finished difference Result 24063 states and 37487 transitions. [2024-11-16 08:19:39,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:19:39,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 08:19:39,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:39,536 INFO L225 Difference]: With dead ends: 24063 [2024-11-16 08:19:39,537 INFO L226 Difference]: Without dead ends: 16584 [2024-11-16 08:19:39,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:19:39,546 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 342 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:39,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 637 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:39,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16584 states. [2024-11-16 08:19:39,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16584 to 12017. [2024-11-16 08:19:39,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12017 states, 12016 states have (on average 1.5428595206391478) internal successors, (18539), 12016 states have internal predecessors, (18539), 0 states have call successors, (0), 0 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 08:19:39,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12017 states to 12017 states and 18539 transitions. [2024-11-16 08:19:39,975 INFO L78 Accepts]: Start accepts. Automaton has 12017 states and 18539 transitions. Word has length 77 [2024-11-16 08:19:39,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:39,975 INFO L471 AbstractCegarLoop]: Abstraction has 12017 states and 18539 transitions. [2024-11-16 08:19:39,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:39,976 INFO L276 IsEmpty]: Start isEmpty. Operand 12017 states and 18539 transitions. [2024-11-16 08:19:39,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 08:19:39,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:39,977 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] [2024-11-16 08:19:39,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:19:39,977 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:39,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:39,978 INFO L85 PathProgramCache]: Analyzing trace with hash 949889311, now seen corresponding path program 1 times [2024-11-16 08:19:39,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:39,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216319375] [2024-11-16 08:19:39,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:39,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:40,164 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 08:19:40,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:40,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216319375] [2024-11-16 08:19:40,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216319375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:40,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:40,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:19:40,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241028136] [2024-11-16 08:19:40,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:40,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:19:40,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:40,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:19:40,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:19:40,166 INFO L87 Difference]: Start difference. First operand 12017 states and 18539 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 08:19:40,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:40,555 INFO L93 Difference]: Finished difference Result 23958 states and 36975 transitions. [2024-11-16 08:19:40,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:19:40,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-16 08:19:40,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:40,582 INFO L225 Difference]: With dead ends: 23958 [2024-11-16 08:19:40,583 INFO L226 Difference]: Without dead ends: 12020 [2024-11-16 08:19:40,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:19:40,598 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 90 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:40,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 688 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:40,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12020 states. [2024-11-16 08:19:40,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12020 to 12017. [2024-11-16 08:19:40,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12017 states, 12016 states have (on average 1.5303761651131824) internal successors, (18389), 12016 states have internal predecessors, (18389), 0 states have call successors, (0), 0 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 08:19:40,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12017 states to 12017 states and 18389 transitions. [2024-11-16 08:19:40,974 INFO L78 Accepts]: Start accepts. Automaton has 12017 states and 18389 transitions. Word has length 79 [2024-11-16 08:19:40,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:40,974 INFO L471 AbstractCegarLoop]: Abstraction has 12017 states and 18389 transitions. [2024-11-16 08:19:40,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 08:19:40,975 INFO L276 IsEmpty]: Start isEmpty. Operand 12017 states and 18389 transitions. [2024-11-16 08:19:40,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 08:19:40,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:40,975 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:19:40,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:19:40,976 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:40,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:40,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1478264668, now seen corresponding path program 1 times [2024-11-16 08:19:40,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:40,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971214318] [2024-11-16 08:19:40,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:40,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:41,211 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 08:19:41,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:41,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971214318] [2024-11-16 08:19:41,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971214318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:41,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:41,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:19:41,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548103417] [2024-11-16 08:19:41,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:41,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:19:41,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:41,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:19:41,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:19:41,214 INFO L87 Difference]: Start difference. First operand 12017 states and 18389 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 08:19:41,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:41,717 INFO L93 Difference]: Finished difference Result 34623 states and 53147 transitions. [2024-11-16 08:19:41,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:19:41,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-16 08:19:41,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:41,768 INFO L225 Difference]: With dead ends: 34623 [2024-11-16 08:19:41,768 INFO L226 Difference]: Without dead ends: 22685 [2024-11-16 08:19:41,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:19:41,785 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 171 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:41,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 528 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:41,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22685 states. [2024-11-16 08:19:42,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22685 to 22682. [2024-11-16 08:19:42,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22682 states, 22681 states have (on average 1.5187601957585644) internal successors, (34447), 22681 states have internal predecessors, (34447), 0 states have call successors, (0), 0 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 08:19:42,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22682 states to 22682 states and 34447 transitions. [2024-11-16 08:19:42,410 INFO L78 Accepts]: Start accepts. Automaton has 22682 states and 34447 transitions. Word has length 84 [2024-11-16 08:19:42,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:42,411 INFO L471 AbstractCegarLoop]: Abstraction has 22682 states and 34447 transitions. [2024-11-16 08:19:42,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 08:19:42,411 INFO L276 IsEmpty]: Start isEmpty. Operand 22682 states and 34447 transitions. [2024-11-16 08:19:42,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-16 08:19:42,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:42,412 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] [2024-11-16 08:19:42,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:19:42,412 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:42,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:42,413 INFO L85 PathProgramCache]: Analyzing trace with hash -593363329, now seen corresponding path program 1 times [2024-11-16 08:19:42,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:42,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199045786] [2024-11-16 08:19:42,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:42,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:42,652 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 08:19:42,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:42,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199045786] [2024-11-16 08:19:42,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199045786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:42,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:42,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:19:42,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997668390] [2024-11-16 08:19:42,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:42,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:19:42,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:42,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:19:42,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:19:42,654 INFO L87 Difference]: Start difference. First operand 22682 states and 34447 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 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 08:19:42,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:42,960 INFO L93 Difference]: Finished difference Result 23846 states and 35997 transitions. [2024-11-16 08:19:42,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:19:42,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-16 08:19:42,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:43,011 INFO L225 Difference]: With dead ends: 23846 [2024-11-16 08:19:43,011 INFO L226 Difference]: Without dead ends: 23843 [2024-11-16 08:19:43,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 08:19:43,020 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:43,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 766 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:19:43,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23843 states. [2024-11-16 08:19:43,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23843 to 23843. [2024-11-16 08:19:43,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23843 states, 23842 states have (on average 1.4931213824343594) internal successors, (35599), 23842 states have internal predecessors, (35599), 0 states have call successors, (0), 0 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 08:19:43,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23843 states to 23843 states and 35599 transitions. [2024-11-16 08:19:43,720 INFO L78 Accepts]: Start accepts. Automaton has 23843 states and 35599 transitions. Word has length 86 [2024-11-16 08:19:43,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:43,721 INFO L471 AbstractCegarLoop]: Abstraction has 23843 states and 35599 transitions. [2024-11-16 08:19:43,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 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 08:19:43,721 INFO L276 IsEmpty]: Start isEmpty. Operand 23843 states and 35599 transitions. [2024-11-16 08:19:43,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 08:19:43,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:43,724 INFO L215 NwaCegarLoop]: trace histogram [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 08:19:43,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:19:43,725 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:43,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:43,725 INFO L85 PathProgramCache]: Analyzing trace with hash -361861814, now seen corresponding path program 1 times [2024-11-16 08:19:43,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:43,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350453432] [2024-11-16 08:19:43,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:43,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:43,916 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-16 08:19:43,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:43,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350453432] [2024-11-16 08:19:43,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350453432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:43,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:43,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:19:43,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092959880] [2024-11-16 08:19:43,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:43,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:19:43,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:43,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:19:43,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:19:43,921 INFO L87 Difference]: Start difference. First operand 23843 states and 35599 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 08:19:44,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:44,659 INFO L93 Difference]: Finished difference Result 59770 states and 89377 transitions. [2024-11-16 08:19:44,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:19:44,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 113 [2024-11-16 08:19:44,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:44,786 INFO L225 Difference]: With dead ends: 59770 [2024-11-16 08:19:44,787 INFO L226 Difference]: Without dead ends: 48723 [2024-11-16 08:19:44,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:19:44,816 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 433 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:44,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 875 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:44,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48723 states. [2024-11-16 08:19:45,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48723 to 37500. [2024-11-16 08:19:45,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37500 states, 37499 states have (on average 1.488599695991893) internal successors, (55821), 37499 states have internal predecessors, (55821), 0 states have call successors, (0), 0 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 08:19:45,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37500 states to 37500 states and 55821 transitions. [2024-11-16 08:19:45,722 INFO L78 Accepts]: Start accepts. Automaton has 37500 states and 55821 transitions. Word has length 113 [2024-11-16 08:19:45,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:45,722 INFO L471 AbstractCegarLoop]: Abstraction has 37500 states and 55821 transitions. [2024-11-16 08:19:45,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 08:19:45,722 INFO L276 IsEmpty]: Start isEmpty. Operand 37500 states and 55821 transitions. [2024-11-16 08:19:45,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 08:19:45,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:45,725 INFO L215 NwaCegarLoop]: trace histogram [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 08:19:45,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:19:45,725 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:45,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:45,726 INFO L85 PathProgramCache]: Analyzing trace with hash -106285910, now seen corresponding path program 1 times [2024-11-16 08:19:45,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:45,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570095210] [2024-11-16 08:19:45,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:45,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:45,877 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 08:19:45,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:45,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570095210] [2024-11-16 08:19:45,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570095210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:45,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:45,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:19:45,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460060942] [2024-11-16 08:19:45,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:45,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:19:45,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:45,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:19:45,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:19:45,880 INFO L87 Difference]: Start difference. First operand 37500 states and 55821 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 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 08:19:46,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:46,858 INFO L93 Difference]: Finished difference Result 64226 states and 96057 transitions. [2024-11-16 08:19:46,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:19:46,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 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 113 [2024-11-16 08:19:46,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:46,959 INFO L225 Difference]: With dead ends: 64226 [2024-11-16 08:19:46,959 INFO L226 Difference]: Without dead ends: 53179 [2024-11-16 08:19:46,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:19:46,977 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 432 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:46,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 853 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:47,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53179 states. [2024-11-16 08:19:47,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53179 to 50934. [2024-11-16 08:19:48,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50934 states, 50933 states have (on average 1.488720475919345) internal successors, (75825), 50933 states have internal predecessors, (75825), 0 states have call successors, (0), 0 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 08:19:48,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50934 states to 50934 states and 75825 transitions. [2024-11-16 08:19:48,187 INFO L78 Accepts]: Start accepts. Automaton has 50934 states and 75825 transitions. Word has length 113 [2024-11-16 08:19:48,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:48,188 INFO L471 AbstractCegarLoop]: Abstraction has 50934 states and 75825 transitions. [2024-11-16 08:19:48,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 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 08:19:48,188 INFO L276 IsEmpty]: Start isEmpty. Operand 50934 states and 75825 transitions. [2024-11-16 08:19:48,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 08:19:48,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:48,191 INFO L215 NwaCegarLoop]: trace histogram [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 08:19:48,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:19:48,191 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:48,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:48,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1057682442, now seen corresponding path program 1 times [2024-11-16 08:19:48,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:48,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138325155] [2024-11-16 08:19:48,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:48,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:48,331 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 08:19:48,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:48,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138325155] [2024-11-16 08:19:48,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138325155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:48,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:48,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:19:48,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39947106] [2024-11-16 08:19:48,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:48,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:19:48,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:48,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:19:48,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:19:48,333 INFO L87 Difference]: Start difference. First operand 50934 states and 75825 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 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 08:19:49,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:49,259 INFO L93 Difference]: Finished difference Result 75765 states and 113357 transitions. [2024-11-16 08:19:49,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:19:49,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 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 113 [2024-11-16 08:19:49,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:49,602 INFO L225 Difference]: With dead ends: 75765 [2024-11-16 08:19:49,602 INFO L226 Difference]: Without dead ends: 62027 [2024-11-16 08:19:49,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:19:49,619 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 428 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:49,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 880 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:49,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62027 states. [2024-11-16 08:19:50,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62027 to 59782. [2024-11-16 08:19:50,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59782 states, 59781 states have (on average 1.4904233786654624) internal successors, (89099), 59781 states have internal predecessors, (89099), 0 states have call successors, (0), 0 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 08:19:50,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59782 states to 59782 states and 89099 transitions. [2024-11-16 08:19:50,785 INFO L78 Accepts]: Start accepts. Automaton has 59782 states and 89099 transitions. Word has length 113 [2024-11-16 08:19:50,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:50,785 INFO L471 AbstractCegarLoop]: Abstraction has 59782 states and 89099 transitions. [2024-11-16 08:19:50,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 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 08:19:50,786 INFO L276 IsEmpty]: Start isEmpty. Operand 59782 states and 89099 transitions. [2024-11-16 08:19:50,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 08:19:50,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:50,788 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:19:50,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:19:50,789 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:50,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:50,789 INFO L85 PathProgramCache]: Analyzing trace with hash 90815714, now seen corresponding path program 1 times [2024-11-16 08:19:50,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:50,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678140313] [2024-11-16 08:19:50,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:50,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:50,923 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 08:19:50,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:50,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678140313] [2024-11-16 08:19:50,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678140313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:50,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:50,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:19:50,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235869752] [2024-11-16 08:19:50,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:50,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:19:50,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:50,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:19:50,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:19:50,925 INFO L87 Difference]: Start difference. First operand 59782 states and 89099 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 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 08:19:51,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:51,809 INFO L93 Difference]: Finished difference Result 102646 states and 153602 transitions. [2024-11-16 08:19:51,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:19:51,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 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 114 [2024-11-16 08:19:51,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:51,912 INFO L225 Difference]: With dead ends: 102646 [2024-11-16 08:19:51,912 INFO L226 Difference]: Without dead ends: 80060 [2024-11-16 08:19:51,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 08:19:51,952 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 181 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:51,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 597 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:52,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80060 states. [2024-11-16 08:19:53,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80060 to 77818. [2024-11-16 08:19:53,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77818 states, 77817 states have (on average 1.4885179330994514) internal successors, (115832), 77817 states have internal predecessors, (115832), 0 states have call successors, (0), 0 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 08:19:53,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77818 states to 77818 states and 115832 transitions. [2024-11-16 08:19:53,445 INFO L78 Accepts]: Start accepts. Automaton has 77818 states and 115832 transitions. Word has length 114 [2024-11-16 08:19:53,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:53,445 INFO L471 AbstractCegarLoop]: Abstraction has 77818 states and 115832 transitions. [2024-11-16 08:19:53,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 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 08:19:53,446 INFO L276 IsEmpty]: Start isEmpty. Operand 77818 states and 115832 transitions. [2024-11-16 08:19:53,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 08:19:53,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:53,448 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:19:53,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:19:53,449 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:53,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:53,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1947240575, now seen corresponding path program 1 times [2024-11-16 08:19:53,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:53,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560781847] [2024-11-16 08:19:53,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:53,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:53,523 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 08:19:53,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:53,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560781847] [2024-11-16 08:19:53,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560781847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:53,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:53,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:19:53,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423637217] [2024-11-16 08:19:53,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:53,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:19:53,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:53,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:19:53,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:19:53,525 INFO L87 Difference]: Start difference. First operand 77818 states and 115832 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 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 08:19:55,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:55,305 INFO L93 Difference]: Finished difference Result 178143 states and 265495 transitions. [2024-11-16 08:19:55,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:19:55,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 114 [2024-11-16 08:19:55,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:55,536 INFO L225 Difference]: With dead ends: 178143 [2024-11-16 08:19:55,536 INFO L226 Difference]: Without dead ends: 137418 [2024-11-16 08:19:55,584 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 08:19:55,585 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 75 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:55,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 360 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:19:55,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137418 states. [2024-11-16 08:19:57,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137418 to 137139. [2024-11-16 08:19:57,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137139 states, 137138 states have (on average 1.4859192929749596) internal successors, (203776), 137138 states have internal predecessors, (203776), 0 states have call successors, (0), 0 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 08:19:58,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137139 states to 137139 states and 203776 transitions. [2024-11-16 08:19:58,210 INFO L78 Accepts]: Start accepts. Automaton has 137139 states and 203776 transitions. Word has length 114 [2024-11-16 08:19:58,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:58,211 INFO L471 AbstractCegarLoop]: Abstraction has 137139 states and 203776 transitions. [2024-11-16 08:19:58,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 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 08:19:58,211 INFO L276 IsEmpty]: Start isEmpty. Operand 137139 states and 203776 transitions. [2024-11-16 08:19:58,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 08:19:58,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:58,214 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:19:58,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:19:58,215 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:58,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:58,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1756629396, now seen corresponding path program 1 times [2024-11-16 08:19:58,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:58,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597440963] [2024-11-16 08:19:58,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:58,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:58,337 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 08:19:58,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:58,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597440963] [2024-11-16 08:19:58,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597440963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:58,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:58,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:19:58,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852403540] [2024-11-16 08:19:58,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:58,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:19:58,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:58,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:19:58,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:19:58,341 INFO L87 Difference]: Start difference. First operand 137139 states and 203776 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 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 08:20:00,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:20:00,912 INFO L93 Difference]: Finished difference Result 208414 states and 311092 transitions. [2024-11-16 08:20:00,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:20:00,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2024-11-16 08:20:00,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:20:01,193 INFO L225 Difference]: With dead ends: 208414 [2024-11-16 08:20:01,193 INFO L226 Difference]: Without dead ends: 169697 [2024-11-16 08:20:01,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 08:20:01,236 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 182 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:20:01,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 655 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:20:01,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169697 states. [2024-11-16 08:20:04,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169697 to 160763. [2024-11-16 08:20:04,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160763 states, 160762 states have (on average 1.485438101043779) internal successors, (238802), 160762 states have internal predecessors, (238802), 0 states have call successors, (0), 0 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 08:20:04,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160763 states to 160763 states and 238802 transitions. [2024-11-16 08:20:04,638 INFO L78 Accepts]: Start accepts. Automaton has 160763 states and 238802 transitions. Word has length 115 [2024-11-16 08:20:04,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:20:04,639 INFO L471 AbstractCegarLoop]: Abstraction has 160763 states and 238802 transitions. [2024-11-16 08:20:04,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 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 08:20:04,639 INFO L276 IsEmpty]: Start isEmpty. Operand 160763 states and 238802 transitions. [2024-11-16 08:20:04,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 08:20:04,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:20:04,642 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:20:04,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:20:04,642 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:20:04,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:20:04,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1469187096, now seen corresponding path program 1 times [2024-11-16 08:20:04,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:20:04,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221013844] [2024-11-16 08:20:04,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:20:04,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:20:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:20:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:20:04,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:20:04,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221013844] [2024-11-16 08:20:04,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221013844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:20:04,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:20:04,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:20:04,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973671612] [2024-11-16 08:20:04,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:20:04,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:20:04,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:20:04,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:20:04,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:20:04,828 INFO L87 Difference]: Start difference. First operand 160763 states and 238802 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:20:07,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:20:07,410 INFO L93 Difference]: Finished difference Result 320290 states and 476341 transitions. [2024-11-16 08:20:07,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:20:07,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2024-11-16 08:20:07,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:20:07,702 INFO L225 Difference]: With dead ends: 320290 [2024-11-16 08:20:07,702 INFO L226 Difference]: Without dead ends: 159606 [2024-11-16 08:20:07,805 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 08:20:07,806 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 75 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:20:07,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 424 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:20:07,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159606 states. [2024-11-16 08:20:10,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159606 to 150604. [2024-11-16 08:20:11,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150604 states, 150603 states have (on average 1.4954748577385577) internal successors, (225223), 150603 states have internal predecessors, (225223), 0 states have call successors, (0), 0 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 08:20:11,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150604 states to 150604 states and 225223 transitions. [2024-11-16 08:20:11,488 INFO L78 Accepts]: Start accepts. Automaton has 150604 states and 225223 transitions. Word has length 115 [2024-11-16 08:20:11,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:20:11,488 INFO L471 AbstractCegarLoop]: Abstraction has 150604 states and 225223 transitions. [2024-11-16 08:20:11,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:20:11,489 INFO L276 IsEmpty]: Start isEmpty. Operand 150604 states and 225223 transitions. [2024-11-16 08:20:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 08:20:11,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:20:11,492 INFO L215 NwaCegarLoop]: trace histogram [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 08:20:11,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:20:11,492 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:20:11,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:20:11,492 INFO L85 PathProgramCache]: Analyzing trace with hash 878820783, now seen corresponding path program 1 times [2024-11-16 08:20:11,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:20:11,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899376251] [2024-11-16 08:20:11,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:20:11,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:20:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:20:11,563 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:20:11,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:20:11,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899376251] [2024-11-16 08:20:11,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899376251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:20:11,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:20:11,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:20:11,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063063820] [2024-11-16 08:20:11,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:20:11,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:20:11,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:20:11,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:20:11,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:20:11,567 INFO L87 Difference]: Start difference. First operand 150604 states and 225223 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:20:14,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:20:14,401 INFO L93 Difference]: Finished difference Result 448595 states and 669291 transitions. [2024-11-16 08:20:14,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:20:14,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2024-11-16 08:20:14,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:20:14,958 INFO L225 Difference]: With dead ends: 448595 [2024-11-16 08:20:14,958 INFO L226 Difference]: Without dead ends: 298064 [2024-11-16 08:20:15,077 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 08:20:15,077 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 126 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:20:15,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 445 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:20:15,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298064 states. [2024-11-16 08:20:20,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298064 to 298061. [2024-11-16 08:20:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298061 states, 298060 states have (on average 1.47969871837885) internal successors, (441039), 298060 states have internal predecessors, (441039), 0 states have call successors, (0), 0 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 08:20:21,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298061 states to 298061 states and 441039 transitions. [2024-11-16 08:20:21,321 INFO L78 Accepts]: Start accepts. Automaton has 298061 states and 441039 transitions. Word has length 115 [2024-11-16 08:20:21,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:20:21,321 INFO L471 AbstractCegarLoop]: Abstraction has 298061 states and 441039 transitions. [2024-11-16 08:20:21,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:20:21,322 INFO L276 IsEmpty]: Start isEmpty. Operand 298061 states and 441039 transitions. [2024-11-16 08:20:21,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 08:20:21,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:20:21,327 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:20:21,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:20:21,328 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:20:21,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:20:21,328 INFO L85 PathProgramCache]: Analyzing trace with hash -943690888, now seen corresponding path program 1 times [2024-11-16 08:20:21,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:20:21,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978698952] [2024-11-16 08:20:21,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:20:21,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:20:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:20:21,460 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:20:21,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:20:21,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978698952] [2024-11-16 08:20:21,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978698952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:20:21,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:20:21,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:20:21,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539789059] [2024-11-16 08:20:21,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:20:21,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:20:21,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:20:21,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:20:21,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:20:21,463 INFO L87 Difference]: Start difference. First operand 298061 states and 441039 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)