./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d09ea01cef1d93b0c86c8a3dadfd601718ca81915e873154848504beefeee43f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:11:58,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:11:58,763 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:11:58,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:11:58,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:11:58,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:11:58,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:11:58,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:11:58,792 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:11:58,794 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:11:58,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:11:58,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:11:58,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:11:58,796 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:11:58,796 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:11:58,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:11:58,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:11:58,798 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:11:58,798 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:11:58,798 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:11:58,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:11:58,799 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:11:58,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:11:58,799 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:11:58,799 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:11:58,800 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:11:58,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:11:58,800 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:11:58,800 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:11:58,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:11:58,800 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:11:58,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:11:58,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:11:58,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:11:58,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:11:58,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:11:58,801 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:11:58,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:11:58,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:11:58,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:11:58,802 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:11:58,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:11:58,804 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d09ea01cef1d93b0c86c8a3dadfd601718ca81915e873154848504beefeee43f [2024-11-18 15:11:59,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:11:59,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:11:59,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:11:59,045 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:11:59,045 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:11:59,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-18 15:12:00,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:12:00,829 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:12:00,829 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-18 15:12:00,842 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5528e45d2/92cd773763404008870cf823e7c6e3c5/FLAG3f02b7b13 [2024-11-18 15:12:00,856 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5528e45d2/92cd773763404008870cf823e7c6e3c5 [2024-11-18 15:12:00,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:12:00,859 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:12:00,860 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:12:00,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:12:00,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:12:00,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:12:00" (1/1) ... [2024-11-18 15:12:00,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50808173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:00, skipping insertion in model container [2024-11-18 15:12:00,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:12:00" (1/1) ... [2024-11-18 15:12:00,912 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:12:01,163 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-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[11680,11693] [2024-11-18 15:12:01,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:12:01,244 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:12:01,313 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-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[11680,11693] [2024-11-18 15:12:01,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:12:01,402 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:12:01,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01 WrapperNode [2024-11-18 15:12:01,403 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:12:01,404 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:12:01,404 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:12:01,404 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:12:01,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01" (1/1) ... [2024-11-18 15:12:01,422 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01" (1/1) ... [2024-11-18 15:12:01,455 INFO L138 Inliner]: procedures = 28, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1033 [2024-11-18 15:12:01,456 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:12:01,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:12:01,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:12:01,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:12:01,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01" (1/1) ... [2024-11-18 15:12:01,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01" (1/1) ... [2024-11-18 15:12:01,468 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01" (1/1) ... [2024-11-18 15:12:01,488 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]. [2024-11-18 15:12:01,489 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01" (1/1) ... [2024-11-18 15:12:01,489 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01" (1/1) ... [2024-11-18 15:12:01,498 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01" (1/1) ... [2024-11-18 15:12:01,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01" (1/1) ... [2024-11-18 15:12:01,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01" (1/1) ... [2024-11-18 15:12:01,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01" (1/1) ... [2024-11-18 15:12:01,511 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:12:01,512 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:12:01,512 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:12:01,512 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:12:01,513 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01" (1/1) ... [2024-11-18 15:12:01,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:12:01,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:12:01,547 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) [2024-11-18 15:12:01,556 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 [2024-11-18 15:12:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:12:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:12:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:12:01,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:12:01,707 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:12:01,709 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:12:02,455 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-18 15:12:02,455 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:12:02,480 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:12:02,480 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 15:12:02,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:12:02 BoogieIcfgContainer [2024-11-18 15:12:02,481 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:12:02,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:12:02,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:12:02,485 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:12:02,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:12:00" (1/3) ... [2024-11-18 15:12:02,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc037cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:12:02, skipping insertion in model container [2024-11-18 15:12:02,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:01" (2/3) ... [2024-11-18 15:12:02,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc037cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:12:02, skipping insertion in model container [2024-11-18 15:12:02,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:12:02" (3/3) ... [2024-11-18 15:12:02,488 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-18 15:12:02,504 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:12:02,505 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 15:12:02,569 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:12:02,581 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;@5a4796d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:12:02,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 15:12:02,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 229 states have (on average 1.7685589519650655) internal successors, (405), 230 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:02,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-18 15:12:02,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:02,605 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:02,605 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:02,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:02,611 INFO L85 PathProgramCache]: Analyzing trace with hash 96284054, now seen corresponding path program 1 times [2024-11-18 15:12:02,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:02,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315407740] [2024-11-18 15:12:02,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:02,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:03,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:03,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:03,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315407740] [2024-11-18 15:12:03,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315407740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:03,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:03,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:12:03,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396125190] [2024-11-18 15:12:03,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:03,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:03,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:03,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:03,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:03,540 INFO L87 Difference]: Start difference. First operand has 231 states, 229 states have (on average 1.7685589519650655) internal successors, (405), 230 states have internal predecessors, (405), 0 states have call successors, (0), 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 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:04,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:04,308 INFO L93 Difference]: Finished difference Result 1826 states and 2955 transitions. [2024-11-18 15:12:04,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 15:12:04,311 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-18 15:12:04,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:04,335 INFO L225 Difference]: With dead ends: 1826 [2024-11-18 15:12:04,336 INFO L226 Difference]: Without dead ends: 1705 [2024-11-18 15:12:04,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-18 15:12:04,342 INFO L432 NwaCegarLoop]: 1002 mSDtfsCounter, 3815 mSDsluCounter, 7214 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3815 SdHoareTripleChecker+Valid, 8216 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:04,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3815 Valid, 8216 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:12:04,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2024-11-18 15:12:04,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 348. [2024-11-18 15:12:04,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.446685878962536) internal successors, (502), 347 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:04,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 502 transitions. [2024-11-18 15:12:04,425 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 502 transitions. Word has length 124 [2024-11-18 15:12:04,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:04,426 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 502 transitions. [2024-11-18 15:12:04,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:04,427 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 502 transitions. [2024-11-18 15:12:04,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 15:12:04,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:04,433 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:04,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:12:04,434 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:04,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:04,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1563387348, now seen corresponding path program 1 times [2024-11-18 15:12:04,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:04,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409598891] [2024-11-18 15:12:04,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:04,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:04,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:04,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:04,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409598891] [2024-11-18 15:12:04,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409598891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:04,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:04,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:12:04,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730011527] [2024-11-18 15:12:04,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:04,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:04,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:04,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:04,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:04,794 INFO L87 Difference]: Start difference. First operand 348 states and 502 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:05,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:05,110 INFO L93 Difference]: Finished difference Result 1960 states and 3067 transitions. [2024-11-18 15:12:05,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:12:05,111 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-18 15:12:05,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:05,116 INFO L225 Difference]: With dead ends: 1960 [2024-11-18 15:12:05,116 INFO L226 Difference]: Without dead ends: 1780 [2024-11-18 15:12:05,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:12:05,118 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 2723 mSDsluCounter, 3087 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 4050 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:05,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2723 Valid, 4050 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:05,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2024-11-18 15:12:05,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 552. [2024-11-18 15:12:05,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 551 states have (on average 1.5027223230490019) internal successors, (828), 551 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:05,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 828 transitions. [2024-11-18 15:12:05,138 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 828 transitions. Word has length 126 [2024-11-18 15:12:05,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:05,139 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 828 transitions. [2024-11-18 15:12:05,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:05,139 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 828 transitions. [2024-11-18 15:12:05,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 15:12:05,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:05,141 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:05,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:12:05,141 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:05,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:05,142 INFO L85 PathProgramCache]: Analyzing trace with hash 714482392, now seen corresponding path program 1 times [2024-11-18 15:12:05,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:05,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402559171] [2024-11-18 15:12:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:05,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:05,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:05,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:05,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402559171] [2024-11-18 15:12:05,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402559171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:05,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:05,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:12:05,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066948753] [2024-11-18 15:12:05,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:05,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:05,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:05,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:05,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:05,468 INFO L87 Difference]: Start difference. First operand 552 states and 828 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:05,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:05,806 INFO L93 Difference]: Finished difference Result 2164 states and 3393 transitions. [2024-11-18 15:12:05,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:12:05,807 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-18 15:12:05,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:05,813 INFO L225 Difference]: With dead ends: 2164 [2024-11-18 15:12:05,813 INFO L226 Difference]: Without dead ends: 1984 [2024-11-18 15:12:05,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:12:05,815 INFO L432 NwaCegarLoop]: 830 mSDtfsCounter, 2890 mSDsluCounter, 2706 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2890 SdHoareTripleChecker+Valid, 3536 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:05,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2890 Valid, 3536 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:05,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2024-11-18 15:12:05,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 840. [2024-11-18 15:12:05,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 839 states have (on average 1.535160905840286) internal successors, (1288), 839 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:05,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1288 transitions. [2024-11-18 15:12:05,850 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1288 transitions. Word has length 126 [2024-11-18 15:12:05,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:05,851 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 1288 transitions. [2024-11-18 15:12:05,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:05,851 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1288 transitions. [2024-11-18 15:12:05,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 15:12:05,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:05,853 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:05,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:12:05,853 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:05,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:05,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2024644258, now seen corresponding path program 1 times [2024-11-18 15:12:05,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:05,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385836764] [2024-11-18 15:12:05,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:05,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:06,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:06,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:06,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385836764] [2024-11-18 15:12:06,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385836764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:06,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:06,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:12:06,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748117805] [2024-11-18 15:12:06,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:06,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:06,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:06,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:06,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:06,095 INFO L87 Difference]: Start difference. First operand 840 states and 1288 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:06,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:06,392 INFO L93 Difference]: Finished difference Result 2358 states and 3703 transitions. [2024-11-18 15:12:06,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:12:06,393 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-18 15:12:06,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:06,399 INFO L225 Difference]: With dead ends: 2358 [2024-11-18 15:12:06,399 INFO L226 Difference]: Without dead ends: 2178 [2024-11-18 15:12:06,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:12:06,401 INFO L432 NwaCegarLoop]: 704 mSDtfsCounter, 3488 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3488 SdHoareTripleChecker+Valid, 3070 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:06,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3488 Valid, 3070 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:06,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2178 states. [2024-11-18 15:12:06,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2178 to 1034. [2024-11-18 15:12:06,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1033 states have (on average 1.546950629235237) internal successors, (1598), 1033 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:06,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1598 transitions. [2024-11-18 15:12:06,423 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1598 transitions. Word has length 126 [2024-11-18 15:12:06,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:06,423 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1598 transitions. [2024-11-18 15:12:06,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:06,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1598 transitions. [2024-11-18 15:12:06,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 15:12:06,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:06,425 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:06,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:12:06,425 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:06,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:06,425 INFO L85 PathProgramCache]: Analyzing trace with hash -292095440, now seen corresponding path program 1 times [2024-11-18 15:12:06,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:06,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576369586] [2024-11-18 15:12:06,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:06,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:06,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:06,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:06,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576369586] [2024-11-18 15:12:06,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576369586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:06,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:06,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:12:06,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458132334] [2024-11-18 15:12:06,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:06,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:06,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:06,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:06,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:06,659 INFO L87 Difference]: Start difference. First operand 1034 states and 1598 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:06,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:06,955 INFO L93 Difference]: Finished difference Result 2547 states and 4005 transitions. [2024-11-18 15:12:06,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:12:06,956 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-18 15:12:06,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:06,962 INFO L225 Difference]: With dead ends: 2547 [2024-11-18 15:12:06,962 INFO L226 Difference]: Without dead ends: 2367 [2024-11-18 15:12:06,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:12:06,965 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 3813 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3813 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:06,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3813 Valid, 3303 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:06,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2024-11-18 15:12:06,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 1213. [2024-11-18 15:12:06,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 1212 states have (on average 1.5544554455445545) internal successors, (1884), 1212 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:06,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1884 transitions. [2024-11-18 15:12:06,994 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1884 transitions. Word has length 126 [2024-11-18 15:12:06,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:06,995 INFO L471 AbstractCegarLoop]: Abstraction has 1213 states and 1884 transitions. [2024-11-18 15:12:06,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:06,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1884 transitions. [2024-11-18 15:12:06,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 15:12:06,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:06,997 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:06,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:12:06,997 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:06,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:06,998 INFO L85 PathProgramCache]: Analyzing trace with hash 344464438, now seen corresponding path program 1 times [2024-11-18 15:12:06,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:06,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48263191] [2024-11-18 15:12:06,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:06,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:07,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:07,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:07,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48263191] [2024-11-18 15:12:07,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48263191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:07,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:07,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:12:07,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465384301] [2024-11-18 15:12:07,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:07,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:07,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:07,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:07,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:07,230 INFO L87 Difference]: Start difference. First operand 1213 states and 1884 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:07,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:07,644 INFO L93 Difference]: Finished difference Result 2725 states and 4290 transitions. [2024-11-18 15:12:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:12:07,647 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-18 15:12:07,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:07,662 INFO L225 Difference]: With dead ends: 2725 [2024-11-18 15:12:07,663 INFO L226 Difference]: Without dead ends: 2545 [2024-11-18 15:12:07,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:12:07,665 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 3953 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3953 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:07,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3953 Valid, 3165 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:12:07,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2024-11-18 15:12:07,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1391. [2024-11-18 15:12:07,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1390 states have (on average 1.5604316546762589) internal successors, (2169), 1390 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:07,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 2169 transitions. [2024-11-18 15:12:07,726 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 2169 transitions. Word has length 126 [2024-11-18 15:12:07,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:07,727 INFO L471 AbstractCegarLoop]: Abstraction has 1391 states and 2169 transitions. [2024-11-18 15:12:07,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:07,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 2169 transitions. [2024-11-18 15:12:07,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 15:12:07,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:07,731 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:07,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:12:07,732 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:07,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:07,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1799008799, now seen corresponding path program 1 times [2024-11-18 15:12:07,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:07,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318969074] [2024-11-18 15:12:07,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:07,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:08,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:08,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318969074] [2024-11-18 15:12:08,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318969074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:08,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:08,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:12:08,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464606059] [2024-11-18 15:12:08,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:08,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:08,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:08,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:08,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:08,262 INFO L87 Difference]: Start difference. First operand 1391 states and 2169 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:08,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:08,675 INFO L93 Difference]: Finished difference Result 2552 states and 4024 transitions. [2024-11-18 15:12:08,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:12:08,676 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-18 15:12:08,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:08,679 INFO L225 Difference]: With dead ends: 2552 [2024-11-18 15:12:08,679 INFO L226 Difference]: Without dead ends: 1393 [2024-11-18 15:12:08,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-18 15:12:08,681 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 768 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:08,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1597 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:12:08,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2024-11-18 15:12:08,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1391. [2024-11-18 15:12:08,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1390 states have (on average 1.5553956834532374) internal successors, (2162), 1390 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:08,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 2162 transitions. [2024-11-18 15:12:08,701 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 2162 transitions. Word has length 126 [2024-11-18 15:12:08,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:08,701 INFO L471 AbstractCegarLoop]: Abstraction has 1391 states and 2162 transitions. [2024-11-18 15:12:08,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:08,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 2162 transitions. [2024-11-18 15:12:08,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 15:12:08,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:08,702 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:08,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:12:08,703 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:08,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:08,703 INFO L85 PathProgramCache]: Analyzing trace with hash -2079312318, now seen corresponding path program 1 times [2024-11-18 15:12:08,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:08,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534870456] [2024-11-18 15:12:08,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:08,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:08,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:08,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:08,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534870456] [2024-11-18 15:12:08,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534870456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:08,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:08,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:12:08,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702171206] [2024-11-18 15:12:08,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:08,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:12:08,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:08,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:12:08,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:12:08,778 INFO L87 Difference]: Start difference. First operand 1391 states and 2162 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:08,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:08,811 INFO L93 Difference]: Finished difference Result 3625 states and 5715 transitions. [2024-11-18 15:12:08,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:12:08,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-18 15:12:08,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:08,818 INFO L225 Difference]: With dead ends: 3625 [2024-11-18 15:12:08,818 INFO L226 Difference]: Without dead ends: 2466 [2024-11-18 15:12:08,820 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 [2024-11-18 15:12:08,821 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 131 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 733 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 [2024-11-18 15:12:08,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 733 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:12:08,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2024-11-18 15:12:08,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 2438. [2024-11-18 15:12:08,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2438 states, 2437 states have (on average 1.5601148953631514) internal successors, (3802), 2437 states have internal predecessors, (3802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:08,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 3802 transitions. [2024-11-18 15:12:08,853 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 3802 transitions. Word has length 126 [2024-11-18 15:12:08,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:08,853 INFO L471 AbstractCegarLoop]: Abstraction has 2438 states and 3802 transitions. [2024-11-18 15:12:08,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:08,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 3802 transitions. [2024-11-18 15:12:08,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 15:12:08,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:08,855 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:08,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:12:08,855 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:08,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:08,855 INFO L85 PathProgramCache]: Analyzing trace with hash 75972018, now seen corresponding path program 1 times [2024-11-18 15:12:08,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:08,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970353350] [2024-11-18 15:12:08,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:08,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:09,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:09,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:09,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970353350] [2024-11-18 15:12:09,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970353350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:09,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:09,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:12:09,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446143734] [2024-11-18 15:12:09,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:09,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:09,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:09,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:09,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:09,054 INFO L87 Difference]: Start difference. First operand 2438 states and 3802 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:09,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:09,368 INFO L93 Difference]: Finished difference Result 5239 states and 8225 transitions. [2024-11-18 15:12:09,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:12:09,369 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-18 15:12:09,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:09,380 INFO L225 Difference]: With dead ends: 5239 [2024-11-18 15:12:09,381 INFO L226 Difference]: Without dead ends: 4898 [2024-11-18 15:12:09,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:12:09,382 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 2947 mSDsluCounter, 3087 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2947 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:09,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2947 Valid, 3658 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:09,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2024-11-18 15:12:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 2783. [2024-11-18 15:12:09,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 2782 states have (on average 1.5625449317038103) internal successors, (4347), 2782 states have internal predecessors, (4347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:09,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 4347 transitions. [2024-11-18 15:12:09,433 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 4347 transitions. Word has length 126 [2024-11-18 15:12:09,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:09,433 INFO L471 AbstractCegarLoop]: Abstraction has 2783 states and 4347 transitions. [2024-11-18 15:12:09,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:09,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 4347 transitions. [2024-11-18 15:12:09,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 15:12:09,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:09,434 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:09,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:12:09,435 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:09,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:09,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1961504132, now seen corresponding path program 1 times [2024-11-18 15:12:09,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:09,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518434563] [2024-11-18 15:12:09,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:09,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:09,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:09,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:09,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518434563] [2024-11-18 15:12:09,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518434563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:09,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:09,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:12:09,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892958779] [2024-11-18 15:12:09,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:09,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:09,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:09,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:09,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:09,624 INFO L87 Difference]: Start difference. First operand 2783 states and 4347 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:09,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:09,936 INFO L93 Difference]: Finished difference Result 5584 states and 8770 transitions. [2024-11-18 15:12:09,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:12:09,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-18 15:12:09,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:09,950 INFO L225 Difference]: With dead ends: 5584 [2024-11-18 15:12:09,950 INFO L226 Difference]: Without dead ends: 5243 [2024-11-18 15:12:09,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:12:09,952 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 3051 mSDsluCounter, 3854 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3051 SdHoareTripleChecker+Valid, 4433 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:09,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3051 Valid, 4433 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:09,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5243 states. [2024-11-18 15:12:09,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5243 to 3133. [2024-11-18 15:12:10,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 1.5644955300127714) internal successors, (4900), 3132 states have internal predecessors, (4900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:10,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 4900 transitions. [2024-11-18 15:12:10,007 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 4900 transitions. Word has length 126 [2024-11-18 15:12:10,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:10,007 INFO L471 AbstractCegarLoop]: Abstraction has 3133 states and 4900 transitions. [2024-11-18 15:12:10,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:10,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 4900 transitions. [2024-11-18 15:12:10,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 15:12:10,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:10,009 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:10,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:12:10,009 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:10,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:10,010 INFO L85 PathProgramCache]: Analyzing trace with hash 804381450, now seen corresponding path program 1 times [2024-11-18 15:12:10,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:10,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766021894] [2024-11-18 15:12:10,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:10,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:10,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:10,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:10,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766021894] [2024-11-18 15:12:10,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766021894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:10,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:10,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:12:10,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967545131] [2024-11-18 15:12:10,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:10,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:10,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:10,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:10,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:10,201 INFO L87 Difference]: Start difference. First operand 3133 states and 4900 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:10,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:10,513 INFO L93 Difference]: Finished difference Result 5944 states and 9339 transitions. [2024-11-18 15:12:10,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:12:10,514 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-18 15:12:10,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:10,524 INFO L225 Difference]: With dead ends: 5944 [2024-11-18 15:12:10,525 INFO L226 Difference]: Without dead ends: 5603 [2024-11-18 15:12:10,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:12:10,528 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 3391 mSDsluCounter, 4130 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3391 SdHoareTripleChecker+Valid, 4616 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:10,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3391 Valid, 4616 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:10,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5603 states. [2024-11-18 15:12:10,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5603 to 3498. [2024-11-18 15:12:10,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 3497 states have (on average 1.5661995996568487) internal successors, (5477), 3497 states have internal predecessors, (5477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:10,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 5477 transitions. [2024-11-18 15:12:10,605 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 5477 transitions. Word has length 126 [2024-11-18 15:12:10,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:10,605 INFO L471 AbstractCegarLoop]: Abstraction has 3498 states and 5477 transitions. [2024-11-18 15:12:10,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:10,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 5477 transitions. [2024-11-18 15:12:10,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 15:12:10,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:10,606 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:10,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:12:10,607 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:10,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:10,607 INFO L85 PathProgramCache]: Analyzing trace with hash 63392965, now seen corresponding path program 1 times [2024-11-18 15:12:10,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:10,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580835326] [2024-11-18 15:12:10,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:10,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:10,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:10,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:10,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580835326] [2024-11-18 15:12:10,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580835326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:10,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:10,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:12:10,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118307910] [2024-11-18 15:12:10,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:10,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:12:10,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:10,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:12:10,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:12:10,706 INFO L87 Difference]: Start difference. First operand 3498 states and 5477 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:10,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:10,939 INFO L93 Difference]: Finished difference Result 10285 states and 16189 transitions. [2024-11-18 15:12:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:12:10,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-18 15:12:10,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:10,949 INFO L225 Difference]: With dead ends: 10285 [2024-11-18 15:12:10,949 INFO L226 Difference]: Without dead ends: 6854 [2024-11-18 15:12:10,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:12:10,955 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1238 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:10,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 274 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:10,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6854 states. [2024-11-18 15:12:11,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6854 to 6852. [2024-11-18 15:12:11,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.5676543570281711) internal successors, (10740), 6851 states have internal predecessors, (10740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:11,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10740 transitions. [2024-11-18 15:12:11,060 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10740 transitions. Word has length 127 [2024-11-18 15:12:11,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:11,060 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10740 transitions. [2024-11-18 15:12:11,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:11,061 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10740 transitions. [2024-11-18 15:12:11,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-18 15:12:11,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:11,101 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:11,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 15:12:11,101 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:11,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:11,102 INFO L85 PathProgramCache]: Analyzing trace with hash -715246153, now seen corresponding path program 1 times [2024-11-18 15:12:11,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:11,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580171354] [2024-11-18 15:12:11,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:11,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:11,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:11,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:11,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580171354] [2024-11-18 15:12:11,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580171354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:11,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:11,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:12:11,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771819777] [2024-11-18 15:12:11,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:11,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:12:11,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:11,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:12:11,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:12:11,229 INFO L87 Difference]: Start difference. First operand 6852 states and 10740 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:11,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:11,481 INFO L93 Difference]: Finished difference Result 13621 states and 21393 transitions. [2024-11-18 15:12:11,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:12:11,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-11-18 15:12:11,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:11,497 INFO L225 Difference]: With dead ends: 13621 [2024-11-18 15:12:11,497 INFO L226 Difference]: Without dead ends: 6852 [2024-11-18 15:12:11,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:12:11,506 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 804 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:11,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 205 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:11,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-18 15:12:11,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-18 15:12:11,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.5564151218800175) internal successors, (10663), 6851 states have internal predecessors, (10663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:11,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10663 transitions. [2024-11-18 15:12:11,578 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10663 transitions. Word has length 128 [2024-11-18 15:12:11,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:11,579 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10663 transitions. [2024-11-18 15:12:11,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:11,579 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10663 transitions. [2024-11-18 15:12:11,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-18 15:12:11,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:11,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:11,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 15:12:11,581 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:11,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:11,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1535233275, now seen corresponding path program 1 times [2024-11-18 15:12:11,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:11,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835442899] [2024-11-18 15:12:11,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:11,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:11,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:11,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:11,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835442899] [2024-11-18 15:12:11,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835442899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:11,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:11,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:12:11,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171274085] [2024-11-18 15:12:11,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:11,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:12:11,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:11,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:12:11,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:12:11,716 INFO L87 Difference]: Start difference. First operand 6852 states and 10663 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:11,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:11,984 INFO L93 Difference]: Finished difference Result 13609 states and 21225 transitions. [2024-11-18 15:12:11,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:12:11,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-11-18 15:12:11,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:11,994 INFO L225 Difference]: With dead ends: 13609 [2024-11-18 15:12:11,994 INFO L226 Difference]: Without dead ends: 6852 [2024-11-18 15:12:12,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:12:12,001 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 765 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:12,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 233 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:12,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-18 15:12:12,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-18 15:12:12,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.545175886731864) internal successors, (10586), 6851 states have internal predecessors, (10586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:12,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10586 transitions. [2024-11-18 15:12:12,077 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10586 transitions. Word has length 129 [2024-11-18 15:12:12,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:12,077 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10586 transitions. [2024-11-18 15:12:12,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:12,077 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10586 transitions. [2024-11-18 15:12:12,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 15:12:12,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:12,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:12,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 15:12:12,079 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:12,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:12,080 INFO L85 PathProgramCache]: Analyzing trace with hash -746894101, now seen corresponding path program 1 times [2024-11-18 15:12:12,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:12,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023714547] [2024-11-18 15:12:12,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:12,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:12,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:12,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:12,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023714547] [2024-11-18 15:12:12,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023714547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:12,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:12,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:12:12,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557905492] [2024-11-18 15:12:12,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:12,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:12:12,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:12,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:12:12,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:12:12,236 INFO L87 Difference]: Start difference. First operand 6852 states and 10586 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:12,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:12,415 INFO L93 Difference]: Finished difference Result 13613 states and 21076 transitions. [2024-11-18 15:12:12,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:12:12,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-11-18 15:12:12,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:12,425 INFO L225 Difference]: With dead ends: 13613 [2024-11-18 15:12:12,425 INFO L226 Difference]: Without dead ends: 6852 [2024-11-18 15:12:12,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:12:12,433 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 769 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:12,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 221 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:12:12,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-18 15:12:12,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-18 15:12:12,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.5339366515837105) internal successors, (10509), 6851 states have internal predecessors, (10509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:12,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10509 transitions. [2024-11-18 15:12:12,577 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10509 transitions. Word has length 130 [2024-11-18 15:12:12,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:12,577 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10509 transitions. [2024-11-18 15:12:12,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:12,577 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10509 transitions. [2024-11-18 15:12:12,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-18 15:12:12,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:12,579 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:12,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 15:12:12,580 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:12,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:12,580 INFO L85 PathProgramCache]: Analyzing trace with hash -894772551, now seen corresponding path program 1 times [2024-11-18 15:12:12,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:12,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676731210] [2024-11-18 15:12:12,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:12,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:12,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:12,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:12,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676731210] [2024-11-18 15:12:12,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676731210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:12,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:12,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:12:12,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661601379] [2024-11-18 15:12:12,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:12,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:12:12,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:12,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:12:12,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:12:12,669 INFO L87 Difference]: Start difference. First operand 6852 states and 10509 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:12,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:12,810 INFO L93 Difference]: Finished difference Result 13625 states and 20936 transitions. [2024-11-18 15:12:12,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:12:12,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-11-18 15:12:12,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:12,821 INFO L225 Difference]: With dead ends: 13625 [2024-11-18 15:12:12,821 INFO L226 Difference]: Without dead ends: 6852 [2024-11-18 15:12:12,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:12:12,829 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 797 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:12,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 197 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:12:12,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-18 15:12:12,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-18 15:12:12,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.522697416435557) internal successors, (10432), 6851 states have internal predecessors, (10432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:12,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10432 transitions. [2024-11-18 15:12:12,907 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10432 transitions. Word has length 131 [2024-11-18 15:12:12,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:12,907 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10432 transitions. [2024-11-18 15:12:12,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:12,907 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10432 transitions. [2024-11-18 15:12:12,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-18 15:12:12,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:12,909 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:12,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 15:12:12,909 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:12,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:12,910 INFO L85 PathProgramCache]: Analyzing trace with hash 707180727, now seen corresponding path program 1 times [2024-11-18 15:12:12,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:12,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174560649] [2024-11-18 15:12:12,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:12,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:13,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:13,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:13,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174560649] [2024-11-18 15:12:13,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174560649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:13,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:13,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:12:13,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721747484] [2024-11-18 15:12:13,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:13,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:12:13,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:13,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:12:13,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:12:13,014 INFO L87 Difference]: Start difference. First operand 6852 states and 10432 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:13,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:13,207 INFO L93 Difference]: Finished difference Result 13633 states and 20792 transitions. [2024-11-18 15:12:13,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:12:13,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2024-11-18 15:12:13,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:13,218 INFO L225 Difference]: With dead ends: 13633 [2024-11-18 15:12:13,218 INFO L226 Difference]: Without dead ends: 6852 [2024-11-18 15:12:13,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:12:13,226 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 813 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:13,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 181 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:12:13,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-18 15:12:13,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-18 15:12:13,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.5114581812874033) internal successors, (10355), 6851 states have internal predecessors, (10355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:13,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10355 transitions. [2024-11-18 15:12:13,320 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10355 transitions. Word has length 132 [2024-11-18 15:12:13,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:13,320 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10355 transitions. [2024-11-18 15:12:13,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:13,321 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10355 transitions. [2024-11-18 15:12:13,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 15:12:13,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:13,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:13,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 15:12:13,323 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:13,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:13,324 INFO L85 PathProgramCache]: Analyzing trace with hash -72647047, now seen corresponding path program 1 times [2024-11-18 15:12:13,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:13,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241960199] [2024-11-18 15:12:13,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:13,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:13,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:13,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:13,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241960199] [2024-11-18 15:12:13,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241960199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:13,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:13,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:12:13,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532942913] [2024-11-18 15:12:13,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:13,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:12:13,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:13,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:12:13,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:12:13,438 INFO L87 Difference]: Start difference. First operand 6852 states and 10355 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:13,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:13,590 INFO L93 Difference]: Finished difference Result 13629 states and 20634 transitions. [2024-11-18 15:12:13,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:12:13,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2024-11-18 15:12:13,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:13,600 INFO L225 Difference]: With dead ends: 13629 [2024-11-18 15:12:13,600 INFO L226 Difference]: Without dead ends: 6852 [2024-11-18 15:12:13,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:12:13,609 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 795 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:13,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 189 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:12:13,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-18 15:12:13,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-18 15:12:13,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.5002189461392497) internal successors, (10278), 6851 states have internal predecessors, (10278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:13,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10278 transitions. [2024-11-18 15:12:13,706 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10278 transitions. Word has length 133 [2024-11-18 15:12:13,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:13,707 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10278 transitions. [2024-11-18 15:12:13,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:13,707 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10278 transitions. [2024-11-18 15:12:13,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:12:13,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:13,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:13,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 15:12:13,709 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:13,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:13,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1467277949, now seen corresponding path program 1 times [2024-11-18 15:12:13,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:13,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694434421] [2024-11-18 15:12:13,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:13,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:13,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:13,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:13,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694434421] [2024-11-18 15:12:13,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694434421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:13,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:13,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:12:13,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212865950] [2024-11-18 15:12:13,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:13,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:12:13,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:13,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:12:13,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:12:13,822 INFO L87 Difference]: Start difference. First operand 6852 states and 10278 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:13,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:13,958 INFO L93 Difference]: Finished difference Result 13617 states and 20468 transitions. [2024-11-18 15:12:13,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:12:13,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-11-18 15:12:13,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:13,966 INFO L225 Difference]: With dead ends: 13617 [2024-11-18 15:12:13,967 INFO L226 Difference]: Without dead ends: 6852 [2024-11-18 15:12:13,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:12:13,973 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 753 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:13,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 213 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:12:13,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-18 15:12:14,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-18 15:12:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.4889797109910963) internal successors, (10201), 6851 states have internal predecessors, (10201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:14,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10201 transitions. [2024-11-18 15:12:14,029 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10201 transitions. Word has length 134 [2024-11-18 15:12:14,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:14,029 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10201 transitions. [2024-11-18 15:12:14,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:14,029 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10201 transitions. [2024-11-18 15:12:14,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-18 15:12:14,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:14,031 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:14,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 15:12:14,031 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:14,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:14,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1720431211, now seen corresponding path program 1 times [2024-11-18 15:12:14,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:14,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545929436] [2024-11-18 15:12:14,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:14,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:14,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:14,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:14,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545929436] [2024-11-18 15:12:14,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545929436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:14,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:14,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 15:12:14,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013356157] [2024-11-18 15:12:14,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:14,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:12:14,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:14,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:12:14,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:12:14,486 INFO L87 Difference]: Start difference. First operand 6852 states and 10201 transitions. Second operand has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:15,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:15,153 INFO L93 Difference]: Finished difference Result 20282 states and 30197 transitions. [2024-11-18 15:12:15,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:12:15,154 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-11-18 15:12:15,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:15,170 INFO L225 Difference]: With dead ends: 20282 [2024-11-18 15:12:15,170 INFO L226 Difference]: Without dead ends: 13658 [2024-11-18 15:12:15,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:12:15,179 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 1276 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:15,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 1092 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:12:15,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13658 states. [2024-11-18 15:12:15,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13658 to 6852. [2024-11-18 15:12:15,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.4876660341555976) internal successors, (10192), 6851 states have internal predecessors, (10192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:15,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10192 transitions. [2024-11-18 15:12:15,275 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10192 transitions. Word has length 135 [2024-11-18 15:12:15,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:15,275 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10192 transitions. [2024-11-18 15:12:15,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:15,276 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10192 transitions. [2024-11-18 15:12:15,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-18 15:12:15,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:15,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:15,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 15:12:15,277 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:15,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:15,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1294997924, now seen corresponding path program 1 times [2024-11-18 15:12:15,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:15,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799860339] [2024-11-18 15:12:15,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:15,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:15,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:15,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:15,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799860339] [2024-11-18 15:12:15,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799860339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:15,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:15,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 15:12:15,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113713209] [2024-11-18 15:12:15,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:15,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 15:12:15,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:15,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 15:12:15,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-18 15:12:15,783 INFO L87 Difference]: Start difference. First operand 6852 states and 10192 transitions. Second operand has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 13 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:16,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:16,491 INFO L93 Difference]: Finished difference Result 20597 states and 30491 transitions. [2024-11-18 15:12:16,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 15:12:16,491 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 13 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-18 15:12:16,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:16,504 INFO L225 Difference]: With dead ends: 20597 [2024-11-18 15:12:16,504 INFO L226 Difference]: Without dead ends: 14153 [2024-11-18 15:12:16,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-18 15:12:16,512 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1384 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:16,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 1203 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:12:16,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14153 states. [2024-11-18 15:12:16,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14153 to 7122. [2024-11-18 15:12:16,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7122 states, 7121 states have (on average 1.4881336890886112) internal successors, (10597), 7121 states have internal predecessors, (10597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:16,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7122 states to 7122 states and 10597 transitions. [2024-11-18 15:12:16,623 INFO L78 Accepts]: Start accepts. Automaton has 7122 states and 10597 transitions. Word has length 136 [2024-11-18 15:12:16,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:16,623 INFO L471 AbstractCegarLoop]: Abstraction has 7122 states and 10597 transitions. [2024-11-18 15:12:16,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 13 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:16,623 INFO L276 IsEmpty]: Start isEmpty. Operand 7122 states and 10597 transitions. [2024-11-18 15:12:16,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-18 15:12:16,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:16,627 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:16,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 15:12:16,627 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:16,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:16,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1517119698, now seen corresponding path program 1 times [2024-11-18 15:12:16,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:16,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874440959] [2024-11-18 15:12:16,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:16,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:17,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:17,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874440959] [2024-11-18 15:12:17,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874440959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:17,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:17,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 15:12:17,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207641095] [2024-11-18 15:12:17,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:17,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:12:17,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:17,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:12:17,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:12:17,168 INFO L87 Difference]: Start difference. First operand 7122 states and 10597 transitions. Second operand has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:18,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:18,026 INFO L93 Difference]: Finished difference Result 20794 states and 30947 transitions. [2024-11-18 15:12:18,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:12:18,026 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-18 15:12:18,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:18,040 INFO L225 Difference]: With dead ends: 20794 [2024-11-18 15:12:18,040 INFO L226 Difference]: Without dead ends: 13943 [2024-11-18 15:12:18,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:12:18,050 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 1426 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:18,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 895 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:12:18,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13943 states. [2024-11-18 15:12:18,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13943 to 7122. [2024-11-18 15:12:18,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7122 states, 7121 states have (on average 1.486869821654262) internal successors, (10588), 7121 states have internal predecessors, (10588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:18,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7122 states to 7122 states and 10588 transitions. [2024-11-18 15:12:18,153 INFO L78 Accepts]: Start accepts. Automaton has 7122 states and 10588 transitions. Word has length 136 [2024-11-18 15:12:18,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:18,153 INFO L471 AbstractCegarLoop]: Abstraction has 7122 states and 10588 transitions. [2024-11-18 15:12:18,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:18,154 INFO L276 IsEmpty]: Start isEmpty. Operand 7122 states and 10588 transitions. [2024-11-18 15:12:18,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-18 15:12:18,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:18,156 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:18,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 15:12:18,156 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:18,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:18,156 INFO L85 PathProgramCache]: Analyzing trace with hash 397308953, now seen corresponding path program 1 times [2024-11-18 15:12:18,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:18,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181788754] [2024-11-18 15:12:18,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:18,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:18,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:18,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:18,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181788754] [2024-11-18 15:12:18,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181788754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:18,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:18,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 15:12:18,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494337272] [2024-11-18 15:12:18,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:18,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 15:12:18,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:18,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 15:12:18,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:12:18,459 INFO L87 Difference]: Start difference. First operand 7122 states and 10588 transitions. Second operand has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:18,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:18,840 INFO L93 Difference]: Finished difference Result 20261 states and 30204 transitions. [2024-11-18 15:12:18,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:12:18,841 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2024-11-18 15:12:18,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:18,856 INFO L225 Difference]: With dead ends: 20261 [2024-11-18 15:12:18,856 INFO L226 Difference]: Without dead ends: 13566 [2024-11-18 15:12:18,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-18 15:12:18,866 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 659 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:18,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 747 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:12:18,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13566 states. [2024-11-18 15:12:18,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13566 to 7122. [2024-11-18 15:12:18,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7122 states, 7121 states have (on average 1.4867293919393343) internal successors, (10587), 7121 states have internal predecessors, (10587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:19,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7122 states to 7122 states and 10587 transitions. [2024-11-18 15:12:19,006 INFO L78 Accepts]: Start accepts. Automaton has 7122 states and 10587 transitions. Word has length 137 [2024-11-18 15:12:19,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:19,007 INFO L471 AbstractCegarLoop]: Abstraction has 7122 states and 10587 transitions. [2024-11-18 15:12:19,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:19,007 INFO L276 IsEmpty]: Start isEmpty. Operand 7122 states and 10587 transitions. [2024-11-18 15:12:19,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 15:12:19,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:19,010 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:19,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 15:12:19,010 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:19,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:19,010 INFO L85 PathProgramCache]: Analyzing trace with hash 515629421, now seen corresponding path program 1 times [2024-11-18 15:12:19,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:19,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002137444] [2024-11-18 15:12:19,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:19,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:19,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:19,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:19,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002137444] [2024-11-18 15:12:19,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002137444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:19,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:19,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:12:19,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363442932] [2024-11-18 15:12:19,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:19,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:19,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:19,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:19,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:19,306 INFO L87 Difference]: Start difference. First operand 7122 states and 10587 transitions. Second operand has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:19,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:19,872 INFO L93 Difference]: Finished difference Result 14389 states and 21371 transitions. [2024-11-18 15:12:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:12:19,873 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-18 15:12:19,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:19,888 INFO L225 Difference]: With dead ends: 14389 [2024-11-18 15:12:19,888 INFO L226 Difference]: Without dead ends: 7675 [2024-11-18 15:12:19,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-18 15:12:19,894 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 927 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:19,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 1276 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:12:19,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2024-11-18 15:12:19,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 6852. [2024-11-18 15:12:19,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.486206393227266) internal successors, (10182), 6851 states have internal predecessors, (10182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:19,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10182 transitions. [2024-11-18 15:12:19,966 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10182 transitions. Word has length 138 [2024-11-18 15:12:19,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:19,966 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10182 transitions. [2024-11-18 15:12:19,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:19,966 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10182 transitions. [2024-11-18 15:12:19,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 15:12:19,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:19,968 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:19,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 15:12:19,968 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:19,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:19,969 INFO L85 PathProgramCache]: Analyzing trace with hash -68768199, now seen corresponding path program 1 times [2024-11-18 15:12:19,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:19,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330956207] [2024-11-18 15:12:19,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:19,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:20,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:20,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:20,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330956207] [2024-11-18 15:12:20,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330956207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:20,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:20,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:12:20,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777884767] [2024-11-18 15:12:20,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:20,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:20,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:20,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:20,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:20,385 INFO L87 Difference]: Start difference. First operand 6852 states and 10182 transitions. Second operand has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:21,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:21,171 INFO L93 Difference]: Finished difference Result 20207 states and 30058 transitions. [2024-11-18 15:12:21,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:12:21,171 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-18 15:12:21,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:21,184 INFO L225 Difference]: With dead ends: 20207 [2024-11-18 15:12:21,185 INFO L226 Difference]: Without dead ends: 13628 [2024-11-18 15:12:21,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-18 15:12:21,192 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 1184 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:21,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 1412 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:12:21,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13628 states. [2024-11-18 15:12:21,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13628 to 6852. [2024-11-18 15:12:21,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.4846007882061012) internal successors, (10171), 6851 states have internal predecessors, (10171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:21,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10171 transitions. [2024-11-18 15:12:21,378 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10171 transitions. Word has length 138 [2024-11-18 15:12:21,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:21,378 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10171 transitions. [2024-11-18 15:12:21,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:21,378 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10171 transitions. [2024-11-18 15:12:21,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-18 15:12:21,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:21,383 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:21,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 15:12:21,383 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:21,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:21,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1141843042, now seen corresponding path program 1 times [2024-11-18 15:12:21,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:21,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684081803] [2024-11-18 15:12:21,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:21,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:21,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:21,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:21,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684081803] [2024-11-18 15:12:21,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684081803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:21,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:21,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:12:21,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323565100] [2024-11-18 15:12:21,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:21,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:21,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:21,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:21,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:21,772 INFO L87 Difference]: Start difference. First operand 6852 states and 10171 transitions. Second operand has 10 states, 10 states have (on average 13.9) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:22,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:22,562 INFO L93 Difference]: Finished difference Result 20107 states and 29887 transitions. [2024-11-18 15:12:22,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:12:22,563 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.9) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2024-11-18 15:12:22,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:22,576 INFO L225 Difference]: With dead ends: 20107 [2024-11-18 15:12:22,577 INFO L226 Difference]: Without dead ends: 13583 [2024-11-18 15:12:22,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-18 15:12:22,585 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 1171 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:22,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1385 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:12:22,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13583 states. [2024-11-18 15:12:22,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13583 to 6852. [2024-11-18 15:12:22,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.4827032549992702) internal successors, (10158), 6851 states have internal predecessors, (10158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:22,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10158 transitions. [2024-11-18 15:12:22,744 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10158 transitions. Word has length 139 [2024-11-18 15:12:22,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:22,745 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10158 transitions. [2024-11-18 15:12:22,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.9) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10158 transitions. [2024-11-18 15:12:22,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 15:12:22,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:22,747 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:22,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 15:12:22,747 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:22,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:22,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2085661092, now seen corresponding path program 1 times [2024-11-18 15:12:22,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:22,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445954076] [2024-11-18 15:12:22,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:22,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:23,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:23,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:23,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445954076] [2024-11-18 15:12:23,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445954076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:23,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:23,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:12:23,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959554978] [2024-11-18 15:12:23,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:23,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:23,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:23,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:23,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:23,037 INFO L87 Difference]: Start difference. First operand 6852 states and 10158 transitions. Second operand has 10 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:23,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:23,878 INFO L93 Difference]: Finished difference Result 19987 states and 29682 transitions. [2024-11-18 15:12:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:12:23,879 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-11-18 15:12:23,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:23,892 INFO L225 Difference]: With dead ends: 19987 [2024-11-18 15:12:23,892 INFO L226 Difference]: Without dead ends: 13528 [2024-11-18 15:12:23,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-18 15:12:23,908 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 722 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:23,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 888 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:12:23,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13528 states. [2024-11-18 15:12:24,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13528 to 6852. [2024-11-18 15:12:24,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.4805137936067727) internal successors, (10143), 6851 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:24,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10143 transitions. [2024-11-18 15:12:24,029 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10143 transitions. Word has length 140 [2024-11-18 15:12:24,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:24,030 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10143 transitions. [2024-11-18 15:12:24,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:24,030 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10143 transitions. [2024-11-18 15:12:24,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 15:12:24,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:24,032 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:24,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 15:12:24,032 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:24,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:24,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1098028876, now seen corresponding path program 1 times [2024-11-18 15:12:24,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:24,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871641425] [2024-11-18 15:12:24,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:24,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:24,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:24,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:24,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871641425] [2024-11-18 15:12:24,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871641425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:24,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:24,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:12:24,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054755307] [2024-11-18 15:12:24,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:24,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:24,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:24,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:24,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:24,559 INFO L87 Difference]: Start difference. First operand 6852 states and 10143 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:25,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:25,261 INFO L93 Difference]: Finished difference Result 20163 states and 29900 transitions. [2024-11-18 15:12:25,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:12:25,262 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-11-18 15:12:25,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:25,277 INFO L225 Difference]: With dead ends: 20163 [2024-11-18 15:12:25,277 INFO L226 Difference]: Without dead ends: 13719 [2024-11-18 15:12:25,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-18 15:12:25,292 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 1108 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:25,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 1160 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:12:25,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13719 states. [2024-11-18 15:12:25,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13719 to 6903. [2024-11-18 15:12:25,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6903 states, 6902 states have (on average 1.4794262532599247) internal successors, (10211), 6902 states have internal predecessors, (10211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:25,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6903 states to 6903 states and 10211 transitions. [2024-11-18 15:12:25,463 INFO L78 Accepts]: Start accepts. Automaton has 6903 states and 10211 transitions. Word has length 141 [2024-11-18 15:12:25,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:25,463 INFO L471 AbstractCegarLoop]: Abstraction has 6903 states and 10211 transitions. [2024-11-18 15:12:25,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:25,464 INFO L276 IsEmpty]: Start isEmpty. Operand 6903 states and 10211 transitions. [2024-11-18 15:12:25,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 15:12:25,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:25,465 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:25,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 15:12:25,465 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:25,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:25,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1957759301, now seen corresponding path program 1 times [2024-11-18 15:12:25,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:25,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266187171] [2024-11-18 15:12:25,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:25,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:25,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:25,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:25,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266187171] [2024-11-18 15:12:25,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266187171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:25,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:25,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:12:25,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018594136] [2024-11-18 15:12:25,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:25,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:12:25,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:25,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:12:25,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:12:25,557 INFO L87 Difference]: Start difference. First operand 6903 states and 10211 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:25,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:25,600 INFO L93 Difference]: Finished difference Result 19487 states and 29069 transitions. [2024-11-18 15:12:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:12:25,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-18 15:12:25,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:25,615 INFO L225 Difference]: With dead ends: 19487 [2024-11-18 15:12:25,615 INFO L226 Difference]: Without dead ends: 13043 [2024-11-18 15:12:25,622 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 [2024-11-18 15:12:25,623 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 149 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 637 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 [2024-11-18 15:12:25,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 637 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:12:25,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13043 states. [2024-11-18 15:12:25,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13043 to 12737. [2024-11-18 15:12:25,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12737 states, 12736 states have (on average 1.4780150753768844) internal successors, (18824), 12736 states have internal predecessors, (18824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:25,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12737 states to 12737 states and 18824 transitions. [2024-11-18 15:12:25,751 INFO L78 Accepts]: Start accepts. Automaton has 12737 states and 18824 transitions. Word has length 142 [2024-11-18 15:12:25,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:25,751 INFO L471 AbstractCegarLoop]: Abstraction has 12737 states and 18824 transitions. [2024-11-18 15:12:25,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:25,752 INFO L276 IsEmpty]: Start isEmpty. Operand 12737 states and 18824 transitions. [2024-11-18 15:12:25,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 15:12:25,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:25,753 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:25,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 15:12:25,753 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:25,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:25,754 INFO L85 PathProgramCache]: Analyzing trace with hash -2073179973, now seen corresponding path program 1 times [2024-11-18 15:12:25,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:25,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984841893] [2024-11-18 15:12:25,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:25,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:26,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:26,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:26,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984841893] [2024-11-18 15:12:26,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984841893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:26,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:26,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 15:12:26,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70849429] [2024-11-18 15:12:26,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:26,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:12:26,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:26,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:12:26,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:12:26,806 INFO L87 Difference]: Start difference. First operand 12737 states and 18824 transitions. Second operand has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:27,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:27,562 INFO L93 Difference]: Finished difference Result 27856 states and 41255 transitions. [2024-11-18 15:12:27,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:12:27,562 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-18 15:12:27,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:27,597 INFO L225 Difference]: With dead ends: 27856 [2024-11-18 15:12:27,597 INFO L226 Difference]: Without dead ends: 25174 [2024-11-18 15:12:27,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:12:27,609 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 1281 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:27,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 2743 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:27,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25174 states. [2024-11-18 15:12:27,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25174 to 12684. [2024-11-18 15:12:27,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12684 states, 12683 states have (on average 1.4781203185366238) internal successors, (18747), 12683 states have internal predecessors, (18747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:27,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12684 states to 12684 states and 18747 transitions. [2024-11-18 15:12:27,867 INFO L78 Accepts]: Start accepts. Automaton has 12684 states and 18747 transitions. Word has length 142 [2024-11-18 15:12:27,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:27,868 INFO L471 AbstractCegarLoop]: Abstraction has 12684 states and 18747 transitions. [2024-11-18 15:12:27,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:27,868 INFO L276 IsEmpty]: Start isEmpty. Operand 12684 states and 18747 transitions. [2024-11-18 15:12:27,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 15:12:27,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:27,870 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:27,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 15:12:27,870 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:27,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:27,875 INFO L85 PathProgramCache]: Analyzing trace with hash -876630055, now seen corresponding path program 1 times [2024-11-18 15:12:27,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:27,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611084881] [2024-11-18 15:12:27,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:27,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:28,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:28,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:28,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611084881] [2024-11-18 15:12:28,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611084881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:28,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:28,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 15:12:28,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933203594] [2024-11-18 15:12:28,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:28,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:12:28,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:28,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:12:28,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:12:28,596 INFO L87 Difference]: Start difference. First operand 12684 states and 18747 transitions. Second operand has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:29,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:29,181 INFO L93 Difference]: Finished difference Result 27700 states and 41037 transitions. [2024-11-18 15:12:29,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:12:29,181 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-18 15:12:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:29,208 INFO L225 Difference]: With dead ends: 27700 [2024-11-18 15:12:29,209 INFO L226 Difference]: Without dead ends: 25078 [2024-11-18 15:12:29,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:12:29,219 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1015 mSDsluCounter, 2706 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:29,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 3092 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:29,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25078 states. [2024-11-18 15:12:29,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25078 to 12666. [2024-11-18 15:12:29,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12666 states, 12665 states have (on average 1.4776154757204896) internal successors, (18714), 12665 states have internal predecessors, (18714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:29,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12666 states to 12666 states and 18714 transitions. [2024-11-18 15:12:29,403 INFO L78 Accepts]: Start accepts. Automaton has 12666 states and 18714 transitions. Word has length 142 [2024-11-18 15:12:29,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:29,403 INFO L471 AbstractCegarLoop]: Abstraction has 12666 states and 18714 transitions. [2024-11-18 15:12:29,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:29,403 INFO L276 IsEmpty]: Start isEmpty. Operand 12666 states and 18714 transitions. [2024-11-18 15:12:29,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 15:12:29,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:29,404 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:29,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-18 15:12:29,405 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:29,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:29,405 INFO L85 PathProgramCache]: Analyzing trace with hash 316458939, now seen corresponding path program 1 times [2024-11-18 15:12:29,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:29,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975922929] [2024-11-18 15:12:29,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:29,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:30,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:30,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:30,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975922929] [2024-11-18 15:12:30,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975922929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:30,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:30,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 15:12:30,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447412652] [2024-11-18 15:12:30,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:30,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 15:12:30,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:30,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 15:12:30,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-18 15:12:30,232 INFO L87 Difference]: Start difference. First operand 12666 states and 18714 transitions. Second operand has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:30,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:30,928 INFO L93 Difference]: Finished difference Result 52178 states and 77450 transitions. [2024-11-18 15:12:30,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 15:12:30,928 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-18 15:12:30,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:30,984 INFO L225 Difference]: With dead ends: 52178 [2024-11-18 15:12:30,984 INFO L226 Difference]: Without dead ends: 49592 [2024-11-18 15:12:31,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-18 15:12:31,003 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 1479 mSDsluCounter, 2648 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:31,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 3039 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:31,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49592 states. [2024-11-18 15:12:31,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49592 to 12692. [2024-11-18 15:12:31,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12692 states, 12691 states have (on average 1.477661334804192) internal successors, (18753), 12691 states have internal predecessors, (18753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:31,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12692 states to 12692 states and 18753 transitions. [2024-11-18 15:12:31,307 INFO L78 Accepts]: Start accepts. Automaton has 12692 states and 18753 transitions. Word has length 142 [2024-11-18 15:12:31,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:31,308 INFO L471 AbstractCegarLoop]: Abstraction has 12692 states and 18753 transitions. [2024-11-18 15:12:31,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:31,308 INFO L276 IsEmpty]: Start isEmpty. Operand 12692 states and 18753 transitions. [2024-11-18 15:12:31,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 15:12:31,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:31,309 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:31,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 15:12:31,310 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:31,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:31,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1995731110, now seen corresponding path program 1 times [2024-11-18 15:12:31,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:31,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180241267] [2024-11-18 15:12:31,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:31,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:31,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:31,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:31,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180241267] [2024-11-18 15:12:31,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180241267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:31,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:31,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 15:12:31,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135415307] [2024-11-18 15:12:31,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:31,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 15:12:31,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:31,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 15:12:31,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-18 15:12:31,839 INFO L87 Difference]: Start difference. First operand 12692 states and 18753 transitions. Second operand has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:32,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:32,598 INFO L93 Difference]: Finished difference Result 52558 states and 77907 transitions. [2024-11-18 15:12:32,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 15:12:32,598 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-18 15:12:32,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:32,660 INFO L225 Difference]: With dead ends: 52558 [2024-11-18 15:12:32,660 INFO L226 Difference]: Without dead ends: 49908 [2024-11-18 15:12:32,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-18 15:12:32,682 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 1734 mSDsluCounter, 2724 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1734 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:32,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1734 Valid, 3171 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:12:32,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49908 states. [2024-11-18 15:12:32,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49908 to 12660. [2024-11-18 15:12:32,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12660 states, 12659 states have (on average 1.4775258709218737) internal successors, (18704), 12659 states have internal predecessors, (18704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:33,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12660 states to 12660 states and 18704 transitions. [2024-11-18 15:12:33,037 INFO L78 Accepts]: Start accepts. Automaton has 12660 states and 18704 transitions. Word has length 142 [2024-11-18 15:12:33,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:33,038 INFO L471 AbstractCegarLoop]: Abstraction has 12660 states and 18704 transitions. [2024-11-18 15:12:33,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:33,038 INFO L276 IsEmpty]: Start isEmpty. Operand 12660 states and 18704 transitions. [2024-11-18 15:12:33,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 15:12:33,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:33,040 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:33,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-18 15:12:33,040 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:33,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:33,042 INFO L85 PathProgramCache]: Analyzing trace with hash -694524325, now seen corresponding path program 1 times [2024-11-18 15:12:33,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:33,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686497294] [2024-11-18 15:12:33,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:33,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:34,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:34,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:34,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686497294] [2024-11-18 15:12:34,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686497294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:34,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:34,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2024-11-18 15:12:34,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834405851] [2024-11-18 15:12:34,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:34,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-18 15:12:34,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:34,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-18 15:12:34,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:12:34,373 INFO L87 Difference]: Start difference. First operand 12660 states and 18704 transitions. Second operand has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:37,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:37,123 INFO L93 Difference]: Finished difference Result 52690 states and 78059 transitions. [2024-11-18 15:12:37,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-18 15:12:37,124 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-18 15:12:37,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:37,182 INFO L225 Difference]: With dead ends: 52690 [2024-11-18 15:12:37,182 INFO L226 Difference]: Without dead ends: 50060 [2024-11-18 15:12:37,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=485, Invalid=2167, Unknown=0, NotChecked=0, Total=2652 [2024-11-18 15:12:37,205 INFO L432 NwaCegarLoop]: 643 mSDtfsCounter, 2402 mSDsluCounter, 8056 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 8699 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:37,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 8699 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 15:12:37,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50060 states. [2024-11-18 15:12:37,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50060 to 12680. [2024-11-18 15:12:37,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12680 states, 12679 states have (on average 1.4768514867103084) internal successors, (18725), 12679 states have internal predecessors, (18725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:37,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12680 states to 12680 states and 18725 transitions. [2024-11-18 15:12:37,531 INFO L78 Accepts]: Start accepts. Automaton has 12680 states and 18725 transitions. Word has length 142 [2024-11-18 15:12:37,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:37,531 INFO L471 AbstractCegarLoop]: Abstraction has 12680 states and 18725 transitions. [2024-11-18 15:12:37,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:37,532 INFO L276 IsEmpty]: Start isEmpty. Operand 12680 states and 18725 transitions. [2024-11-18 15:12:37,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 15:12:37,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:37,533 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:37,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-18 15:12:37,533 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:37,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:37,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1912732381, now seen corresponding path program 1 times [2024-11-18 15:12:37,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:37,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547208904] [2024-11-18 15:12:37,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:37,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:38,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:38,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:38,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547208904] [2024-11-18 15:12:38,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547208904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:38,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:38,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 15:12:38,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440270268] [2024-11-18 15:12:38,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:38,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:12:38,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:38,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:12:38,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:12:38,230 INFO L87 Difference]: Start difference. First operand 12680 states and 18725 transitions. Second operand has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:39,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:39,046 INFO L93 Difference]: Finished difference Result 16597 states and 24535 transitions. [2024-11-18 15:12:39,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:12:39,047 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-18 15:12:39,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:39,061 INFO L225 Difference]: With dead ends: 16597 [2024-11-18 15:12:39,061 INFO L226 Difference]: Without dead ends: 13885 [2024-11-18 15:12:39,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:12:39,067 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 1508 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:39,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 2352 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:12:39,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13885 states. [2024-11-18 15:12:39,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13885 to 12585. [2024-11-18 15:12:39,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12585 states, 12584 states have (on average 1.478305785123967) internal successors, (18603), 12584 states have internal predecessors, (18603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:39,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12585 states to 12585 states and 18603 transitions. [2024-11-18 15:12:39,203 INFO L78 Accepts]: Start accepts. Automaton has 12585 states and 18603 transitions. Word has length 142 [2024-11-18 15:12:39,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:39,203 INFO L471 AbstractCegarLoop]: Abstraction has 12585 states and 18603 transitions. [2024-11-18 15:12:39,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:39,203 INFO L276 IsEmpty]: Start isEmpty. Operand 12585 states and 18603 transitions. [2024-11-18 15:12:39,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 15:12:39,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:39,204 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:39,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-18 15:12:39,204 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:39,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:39,205 INFO L85 PathProgramCache]: Analyzing trace with hash -934594466, now seen corresponding path program 1 times [2024-11-18 15:12:39,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:39,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254398598] [2024-11-18 15:12:39,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:39,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:39,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:39,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:39,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254398598] [2024-11-18 15:12:39,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254398598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:39,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:39,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 15:12:39,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168698094] [2024-11-18 15:12:39,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:39,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 15:12:39,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:39,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 15:12:39,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-18 15:12:39,639 INFO L87 Difference]: Start difference. First operand 12585 states and 18603 transitions. Second operand has 12 states, 12 states have (on average 11.833333333333334) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:40,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:40,046 INFO L93 Difference]: Finished difference Result 27455 states and 40708 transitions. [2024-11-18 15:12:40,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:12:40,046 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.833333333333334) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-18 15:12:40,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:40,070 INFO L225 Difference]: With dead ends: 27455 [2024-11-18 15:12:40,070 INFO L226 Difference]: Without dead ends: 24808 [2024-11-18 15:12:40,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-18 15:12:40,082 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 876 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:40,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 2242 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:12:40,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24808 states. [2024-11-18 15:12:40,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24808 to 12530. [2024-11-18 15:12:40,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12530 states, 12529 states have (on average 1.4792880517200095) internal successors, (18534), 12529 states have internal predecessors, (18534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12530 states to 12530 states and 18534 transitions. [2024-11-18 15:12:40,231 INFO L78 Accepts]: Start accepts. Automaton has 12530 states and 18534 transitions. Word has length 142 [2024-11-18 15:12:40,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:40,231 INFO L471 AbstractCegarLoop]: Abstraction has 12530 states and 18534 transitions. [2024-11-18 15:12:40,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.833333333333334) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:40,232 INFO L276 IsEmpty]: Start isEmpty. Operand 12530 states and 18534 transitions. [2024-11-18 15:12:40,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 15:12:40,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:40,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:40,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-18 15:12:40,233 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:40,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:40,233 INFO L85 PathProgramCache]: Analyzing trace with hash 99414207, now seen corresponding path program 1 times [2024-11-18 15:12:40,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:40,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745550327] [2024-11-18 15:12:40,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:40,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:45,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:45,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:45,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745550327] [2024-11-18 15:12:45,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745550327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:45,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:45,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2024-11-18 15:12:45,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224499854] [2024-11-18 15:12:45,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:45,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-18 15:12:45,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:45,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-18 15:12:45,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=2387, Unknown=0, NotChecked=0, Total=2550 [2024-11-18 15:12:45,377 INFO L87 Difference]: Start difference. First operand 12530 states and 18534 transitions. Second operand has 51 states, 51 states have (on average 2.803921568627451) internal successors, (143), 51 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:55,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:55,955 INFO L93 Difference]: Finished difference Result 27459 states and 40710 transitions. [2024-11-18 15:12:55,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-18 15:12:55,956 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.803921568627451) internal successors, (143), 51 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-18 15:12:55,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:55,984 INFO L225 Difference]: With dead ends: 27459 [2024-11-18 15:12:55,984 INFO L226 Difference]: Without dead ends: 24873 [2024-11-18 15:12:55,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1465 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=1276, Invalid=8036, Unknown=0, NotChecked=0, Total=9312 [2024-11-18 15:12:55,998 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 1287 mSDsluCounter, 9233 mSDsCounter, 0 mSdLazyCounter, 6794 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 9545 SdHoareTripleChecker+Invalid, 6820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 6794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:55,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 9545 Invalid, 6820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 6794 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-18 15:12:56,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24873 states. [2024-11-18 15:12:56,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24873 to 12556. [2024-11-18 15:12:56,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12556 states, 12555 states have (on average 1.4787733970529668) internal successors, (18566), 12555 states have internal predecessors, (18566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:56,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12556 states to 12556 states and 18566 transitions. [2024-11-18 15:12:56,291 INFO L78 Accepts]: Start accepts. Automaton has 12556 states and 18566 transitions. Word has length 143 [2024-11-18 15:12:56,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:56,292 INFO L471 AbstractCegarLoop]: Abstraction has 12556 states and 18566 transitions. [2024-11-18 15:12:56,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.803921568627451) internal successors, (143), 51 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:56,292 INFO L276 IsEmpty]: Start isEmpty. Operand 12556 states and 18566 transitions. [2024-11-18 15:12:56,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 15:12:56,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:56,293 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:56,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-18 15:12:56,293 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:56,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:56,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1647826627, now seen corresponding path program 1 times [2024-11-18 15:12:56,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:56,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973389086] [2024-11-18 15:12:56,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:56,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:56,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:56,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:56,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973389086] [2024-11-18 15:12:56,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973389086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:56,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:56,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:12:56,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522202459] [2024-11-18 15:12:56,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:56,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:12:56,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:56,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:12:56,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:12:56,499 INFO L87 Difference]: Start difference. First operand 12556 states and 18566 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:56,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:56,539 INFO L93 Difference]: Finished difference Result 12630 states and 18675 transitions. [2024-11-18 15:12:56,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:12:56,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-18 15:12:56,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:56,552 INFO L225 Difference]: With dead ends: 12630 [2024-11-18 15:12:56,552 INFO L226 Difference]: Without dead ends: 12628 [2024-11-18 15:12:56,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:12:56,557 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 0 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:56,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1113 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:12:56,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12628 states. [2024-11-18 15:12:56,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12628 to 12628. [2024-11-18 15:12:56,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12628 states, 12627 states have (on average 1.4728755840658905) internal successors, (18598), 12627 states have internal predecessors, (18598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:56,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12628 states to 12628 states and 18598 transitions. [2024-11-18 15:12:56,673 INFO L78 Accepts]: Start accepts. Automaton has 12628 states and 18598 transitions. Word has length 143 [2024-11-18 15:12:56,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:56,673 INFO L471 AbstractCegarLoop]: Abstraction has 12628 states and 18598 transitions. [2024-11-18 15:12:56,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:56,674 INFO L276 IsEmpty]: Start isEmpty. Operand 12628 states and 18598 transitions. [2024-11-18 15:12:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 15:12:56,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:56,674 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:56,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-18 15:12:56,675 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:56,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:56,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1820135423, now seen corresponding path program 1 times [2024-11-18 15:12:56,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:56,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779563974] [2024-11-18 15:12:56,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:56,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:56,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:56,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:56,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779563974] [2024-11-18 15:12:56,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779563974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:56,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:56,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:12:56,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681152466] [2024-11-18 15:12:56,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:56,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 15:12:56,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:56,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 15:12:56,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 15:12:56,822 INFO L87 Difference]: Start difference. First operand 12628 states and 18598 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:56,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:56,903 INFO L93 Difference]: Finished difference Result 30388 states and 44908 transitions. [2024-11-18 15:12:56,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:12:56,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-18 15:12:56,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:56,923 INFO L225 Difference]: With dead ends: 30388 [2024-11-18 15:12:56,923 INFO L226 Difference]: Without dead ends: 18038 [2024-11-18 15:12:56,935 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 [2024-11-18 15:12:56,936 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 134 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:56,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 679 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:12:56,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18038 states. [2024-11-18 15:12:57,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18038 to 17968. [2024-11-18 15:12:57,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17968 states, 17967 states have (on average 1.4685812879167361) internal successors, (26386), 17967 states have internal predecessors, (26386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:57,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17968 states to 17968 states and 26386 transitions. [2024-11-18 15:12:57,123 INFO L78 Accepts]: Start accepts. Automaton has 17968 states and 26386 transitions. Word has length 143 [2024-11-18 15:12:57,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:57,124 INFO L471 AbstractCegarLoop]: Abstraction has 17968 states and 26386 transitions. [2024-11-18 15:12:57,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:57,124 INFO L276 IsEmpty]: Start isEmpty. Operand 17968 states and 26386 transitions. [2024-11-18 15:12:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 15:12:57,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:57,125 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:57,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-18 15:12:57,126 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:57,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:57,126 INFO L85 PathProgramCache]: Analyzing trace with hash 668189268, now seen corresponding path program 1 times [2024-11-18 15:12:57,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:57,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671078386] [2024-11-18 15:12:57,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:57,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:13:00,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:13:00,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:13:00,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671078386] [2024-11-18 15:13:00,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671078386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:13:00,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:13:00,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2024-11-18 15:13:00,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284505354] [2024-11-18 15:13:00,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:13:00,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-18 15:13:00,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:13:00,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-18 15:13:00,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1182, Unknown=0, NotChecked=0, Total=1260 [2024-11-18 15:13:00,188 INFO L87 Difference]: Start difference. First operand 17968 states and 26386 transitions. Second operand has 36 states, 36 states have (on average 3.9722222222222223) internal successors, (143), 36 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:03,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:13:03,985 INFO L93 Difference]: Finished difference Result 21246 states and 31216 transitions. [2024-11-18 15:13:03,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-18 15:13:03,985 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.9722222222222223) internal successors, (143), 36 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-18 15:13:03,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:13:04,005 INFO L225 Difference]: With dead ends: 21246 [2024-11-18 15:13:04,005 INFO L226 Difference]: Without dead ends: 18016 [2024-11-18 15:13:04,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=623, Invalid=3799, Unknown=0, NotChecked=0, Total=4422 [2024-11-18 15:13:04,015 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1195 mSDsluCounter, 4506 mSDsCounter, 0 mSdLazyCounter, 2757 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 4706 SdHoareTripleChecker+Invalid, 2768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:13:04,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 4706 Invalid, 2768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2757 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-18 15:13:04,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18016 states. [2024-11-18 15:13:04,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18016 to 17995. [2024-11-18 15:13:04,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17995 states, 17994 states have (on average 1.4681560520173391) internal successors, (26418), 17994 states have internal predecessors, (26418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:04,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17995 states to 17995 states and 26418 transitions. [2024-11-18 15:13:04,189 INFO L78 Accepts]: Start accepts. Automaton has 17995 states and 26418 transitions. Word has length 143 [2024-11-18 15:13:04,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:13:04,190 INFO L471 AbstractCegarLoop]: Abstraction has 17995 states and 26418 transitions. [2024-11-18 15:13:04,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.9722222222222223) internal successors, (143), 36 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:04,190 INFO L276 IsEmpty]: Start isEmpty. Operand 17995 states and 26418 transitions. [2024-11-18 15:13:04,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-18 15:13:04,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:13:04,195 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:13:04,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-18 15:13:04,195 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:13:04,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:13:04,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1443271639, now seen corresponding path program 1 times [2024-11-18 15:13:04,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:13:04,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810233389] [2024-11-18 15:13:04,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:13:04,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:13:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:13:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:13:04,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:13:04,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810233389] [2024-11-18 15:13:04,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810233389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:13:04,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:13:04,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 15:13:04,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525777205] [2024-11-18 15:13:04,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:13:04,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 15:13:04,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:13:04,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 15:13:04,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-18 15:13:04,907 INFO L87 Difference]: Start difference. First operand 17995 states and 26418 transitions. Second operand has 14 states, 14 states have (on average 10.285714285714286) internal successors, (144), 14 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:05,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:13:05,686 INFO L93 Difference]: Finished difference Result 75025 states and 110444 transitions. [2024-11-18 15:13:05,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 15:13:05,687 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.285714285714286) internal successors, (144), 14 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2024-11-18 15:13:05,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:13:05,770 INFO L225 Difference]: With dead ends: 75025 [2024-11-18 15:13:05,770 INFO L226 Difference]: Without dead ends: 71133 [2024-11-18 15:13:05,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-18 15:13:05,795 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 1233 mSDsluCounter, 4484 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 5116 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:13:05,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 5116 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:13:05,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71133 states. [2024-11-18 15:13:06,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71133 to 17918. [2024-11-18 15:13:06,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17918 states, 17917 states have (on average 1.4691075514874141) internal successors, (26322), 17917 states have internal predecessors, (26322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:06,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17918 states to 17918 states and 26322 transitions. [2024-11-18 15:13:06,341 INFO L78 Accepts]: Start accepts. Automaton has 17918 states and 26322 transitions. Word has length 144 [2024-11-18 15:13:06,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:13:06,341 INFO L471 AbstractCegarLoop]: Abstraction has 17918 states and 26322 transitions. [2024-11-18 15:13:06,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.285714285714286) internal successors, (144), 14 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:06,341 INFO L276 IsEmpty]: Start isEmpty. Operand 17918 states and 26322 transitions. [2024-11-18 15:13:06,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-18 15:13:06,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:13:06,342 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:13:06,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-18 15:13:06,342 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:13:06,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:13:06,343 INFO L85 PathProgramCache]: Analyzing trace with hash -705755709, now seen corresponding path program 1 times [2024-11-18 15:13:06,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:13:06,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22023148] [2024-11-18 15:13:06,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:13:06,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:13:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:13:06,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:13:06,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:13:06,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22023148] [2024-11-18 15:13:06,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22023148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:13:06,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:13:06,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 15:13:06,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821836062] [2024-11-18 15:13:06,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:13:06,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 15:13:06,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:13:06,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 15:13:06,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-18 15:13:06,906 INFO L87 Difference]: Start difference. First operand 17918 states and 26322 transitions. Second operand has 14 states, 14 states have (on average 10.285714285714286) internal successors, (144), 14 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:07,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:13:07,876 INFO L93 Difference]: Finished difference Result 74982 states and 110386 transitions. [2024-11-18 15:13:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 15:13:07,876 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.285714285714286) internal successors, (144), 14 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2024-11-18 15:13:07,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:13:07,962 INFO L225 Difference]: With dead ends: 74982 [2024-11-18 15:13:07,963 INFO L226 Difference]: Without dead ends: 71074 [2024-11-18 15:13:07,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-18 15:13:07,991 INFO L432 NwaCegarLoop]: 691 mSDtfsCounter, 1011 mSDsluCounter, 6121 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 6812 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:13:07,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 6812 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:13:08,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71074 states. [2024-11-18 15:13:08,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71074 to 17868. [2024-11-18 15:13:08,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17868 states, 17867 states have (on average 1.4698606369284155) internal successors, (26262), 17867 states have internal predecessors, (26262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:08,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17868 states to 17868 states and 26262 transitions. [2024-11-18 15:13:08,451 INFO L78 Accepts]: Start accepts. Automaton has 17868 states and 26262 transitions. Word has length 144 [2024-11-18 15:13:08,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:13:08,451 INFO L471 AbstractCegarLoop]: Abstraction has 17868 states and 26262 transitions. [2024-11-18 15:13:08,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.285714285714286) internal successors, (144), 14 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:08,451 INFO L276 IsEmpty]: Start isEmpty. Operand 17868 states and 26262 transitions. [2024-11-18 15:13:08,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-18 15:13:08,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:13:08,454 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:13:08,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-18 15:13:08,455 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:13:08,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:13:08,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1079618049, now seen corresponding path program 1 times [2024-11-18 15:13:08,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:13:08,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46554580] [2024-11-18 15:13:08,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:13:08,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:13:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:13:08,759 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:13:08,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:13:08,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46554580] [2024-11-18 15:13:08,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46554580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:13:08,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:13:08,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:13:08,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612180759] [2024-11-18 15:13:08,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:13:08,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 15:13:08,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:13:08,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 15:13:08,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:13:08,762 INFO L87 Difference]: Start difference. First operand 17868 states and 26262 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:09,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:13:09,295 INFO L93 Difference]: Finished difference Result 77888 states and 115140 transitions. [2024-11-18 15:13:09,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:13:09,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 0 states have call successors, (0), 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 183 [2024-11-18 15:13:09,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:13:09,372 INFO L225 Difference]: With dead ends: 77888 [2024-11-18 15:13:09,373 INFO L226 Difference]: Without dead ends: 60198 [2024-11-18 15:13:09,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:13:09,405 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1643 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1643 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:13:09,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1643 Valid, 569 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:13:09,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60198 states. [2024-11-18 15:13:09,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60198 to 37756. [2024-11-18 15:13:09,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37756 states, 37755 states have (on average 1.4676201827572506) internal successors, (55410), 37755 states have internal predecessors, (55410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:09,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37756 states to 37756 states and 55410 transitions. [2024-11-18 15:13:09,973 INFO L78 Accepts]: Start accepts. Automaton has 37756 states and 55410 transitions. Word has length 183 [2024-11-18 15:13:09,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:13:09,974 INFO L471 AbstractCegarLoop]: Abstraction has 37756 states and 55410 transitions. [2024-11-18 15:13:09,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:09,974 INFO L276 IsEmpty]: Start isEmpty. Operand 37756 states and 55410 transitions. [2024-11-18 15:13:09,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-18 15:13:09,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:13:09,979 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:13:09,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-18 15:13:09,979 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:13:09,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:13:09,979 INFO L85 PathProgramCache]: Analyzing trace with hash 371172755, now seen corresponding path program 1 times [2024-11-18 15:13:09,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:13:09,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733997807] [2024-11-18 15:13:09,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:13:09,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:13:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:13:10,106 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:13:10,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:13:10,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733997807] [2024-11-18 15:13:10,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733997807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:13:10,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:13:10,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:13:10,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581763796] [2024-11-18 15:13:10,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:13:10,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 15:13:10,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:13:10,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 15:13:10,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:13:10,109 INFO L87 Difference]: Start difference. First operand 37756 states and 55410 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:10,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:13:10,675 INFO L93 Difference]: Finished difference Result 153392 states and 226124 transitions. [2024-11-18 15:13:10,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:13:10,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 0 states have call successors, (0), 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 183 [2024-11-18 15:13:10,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:13:10,831 INFO L225 Difference]: With dead ends: 153392 [2024-11-18 15:13:10,831 INFO L226 Difference]: Without dead ends: 115814 [2024-11-18 15:13:10,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:13:10,887 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1558 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:13:10,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 567 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:13:10,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115814 states. [2024-11-18 15:13:12,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115814 to 79732. [2024-11-18 15:13:12,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79732 states, 79731 states have (on average 1.4647502226235718) internal successors, (116786), 79731 states have internal predecessors, (116786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:12,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79732 states to 79732 states and 116786 transitions. [2024-11-18 15:13:12,834 INFO L78 Accepts]: Start accepts. Automaton has 79732 states and 116786 transitions. Word has length 183 [2024-11-18 15:13:12,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:13:12,834 INFO L471 AbstractCegarLoop]: Abstraction has 79732 states and 116786 transitions. [2024-11-18 15:13:12,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:12,834 INFO L276 IsEmpty]: Start isEmpty. Operand 79732 states and 116786 transitions. [2024-11-18 15:13:12,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-18 15:13:12,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:13:12,841 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:13:12,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-18 15:13:12,842 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:13:12,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:13:12,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1394609903, now seen corresponding path program 1 times [2024-11-18 15:13:12,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:13:12,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987261605] [2024-11-18 15:13:12,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:13:12,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:13:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:13:13,165 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:13:13,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:13:13,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987261605] [2024-11-18 15:13:13,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987261605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:13:13,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:13:13,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:13:13,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428455782] [2024-11-18 15:13:13,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:13:13,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 15:13:13,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:13:13,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 15:13:13,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:13:13,168 INFO L87 Difference]: Start difference. First operand 79732 states and 116786 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:14,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:13:14,650 INFO L93 Difference]: Finished difference Result 284600 states and 417732 transitions. [2024-11-18 15:13:14,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:13:14,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 0 states have call successors, (0), 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 183 [2024-11-18 15:13:14,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:13:14,988 INFO L225 Difference]: With dead ends: 284600 [2024-11-18 15:13:14,988 INFO L226 Difference]: Without dead ends: 205046 [2024-11-18 15:13:15,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:13:15,054 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1388 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:13:15,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 563 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:13:15,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205046 states. [2024-11-18 15:13:17,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205046 to 168084. [2024-11-18 15:13:17,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168084 states, 168083 states have (on average 1.4617659132690397) internal successors, (245698), 168083 states have internal predecessors, (245698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:18,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168084 states to 168084 states and 245698 transitions. [2024-11-18 15:13:18,281 INFO L78 Accepts]: Start accepts. Automaton has 168084 states and 245698 transitions. Word has length 183 [2024-11-18 15:13:18,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:13:18,281 INFO L471 AbstractCegarLoop]: Abstraction has 168084 states and 245698 transitions. [2024-11-18 15:13:18,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:18,281 INFO L276 IsEmpty]: Start isEmpty. Operand 168084 states and 245698 transitions. [2024-11-18 15:13:18,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-18 15:13:18,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:13:18,292 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:13:18,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-18 15:13:18,292 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:13:18,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:13:18,293 INFO L85 PathProgramCache]: Analyzing trace with hash 197629742, now seen corresponding path program 1 times [2024-11-18 15:13:18,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:13:18,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522659760] [2024-11-18 15:13:18,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:13:18,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:13:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:13:18,791 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:13:18,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:13:18,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522659760] [2024-11-18 15:13:18,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522659760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 15:13:18,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349611449] [2024-11-18 15:13:18,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:13:18,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:13:18,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:13:18,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 15:13:18,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 15:13:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:13:19,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 15:13:19,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 15:13:19,545 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:13:19,545 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 15:13:19,751 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:13:19,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349611449] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 15:13:19,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 15:13:19,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-18 15:13:19,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549909288] [2024-11-18 15:13:19,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 15:13:19,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 15:13:19,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:13:19,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 15:13:19,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-18 15:13:19,753 INFO L87 Difference]: Start difference. First operand 168084 states and 245698 transitions. Second operand has 11 states, 11 states have (on average 29.727272727272727) internal successors, (327), 10 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:13:21,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:13:21,765 INFO L93 Difference]: Finished difference Result 525016 states and 766628 transitions. [2024-11-18 15:13:21,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:13:21,766 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 29.727272727272727) internal successors, (327), 10 states have internal predecessors, (327), 0 states have call successors, (0), 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 183 [2024-11-18 15:13:21,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:13:22,848 INFO L225 Difference]: With dead ends: 525016 [2024-11-18 15:13:22,848 INFO L226 Difference]: Without dead ends: 357110 [2024-11-18 15:13:22,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 356 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-11-18 15:13:22,965 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 796 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:13:22,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 967 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:13:23,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357110 states.