./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sdlx.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sdlx.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash cbb1b8da58c99e1e9d7b6826bb87a3ed2a077b98cd3d514084114f26bb2b3ffd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 05:52:32,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 05:52:32,491 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 05:52:32,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 05:52:32,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 05:52:32,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 05:52:32,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 05:52:32,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 05:52:32,537 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 05:52:32,541 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 05:52:32,541 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 05:52:32,541 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 05:52:32,542 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 05:52:32,542 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 05:52:32,542 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 05:52:32,543 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 05:52:32,543 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 05:52:32,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 05:52:32,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 05:52:32,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 05:52:32,544 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 05:52:32,546 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 05:52:32,546 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 05:52:32,546 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 05:52:32,546 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 05:52:32,547 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 05:52:32,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 05:52:32,548 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 05:52:32,548 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 05:52:32,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 05:52:32,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 05:52:32,550 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 05:52:32,550 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 05:52:32,550 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 05:52:32,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 05:52:32,550 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 05:52:32,551 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 05:52:32,551 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 05:52:32,551 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 05:52:32,551 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbb1b8da58c99e1e9d7b6826bb87a3ed2a077b98cd3d514084114f26bb2b3ffd [2024-11-22 05:52:32,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 05:52:32,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 05:52:32,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 05:52:32,899 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 05:52:32,900 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 05:52:32,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sdlx.c [2024-11-22 05:52:34,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 05:52:34,675 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 05:52:34,676 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sdlx.c [2024-11-22 05:52:34,697 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9be2c6b11/b29e060a79ec4496aca5bd82a85a1739/FLAGea581b2ea [2024-11-22 05:52:34,892 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9be2c6b11/b29e060a79ec4496aca5bd82a85a1739 [2024-11-22 05:52:34,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 05:52:34,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 05:52:34,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 05:52:34,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 05:52:34,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 05:52:34,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:52:34" (1/1) ... [2024-11-22 05:52:34,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16819551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34, skipping insertion in model container [2024-11-22 05:52:34,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:52:34" (1/1) ... [2024-11-22 05:52:34,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 05:52:35,238 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/hardware-verification-bv/btor2c-lazyMod.sdlx.c[1244,1257] [2024-11-22 05:52:35,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 05:52:35,730 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 05:52:35,742 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/hardware-verification-bv/btor2c-lazyMod.sdlx.c[1244,1257] [2024-11-22 05:52:35,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 05:52:35,957 INFO L204 MainTranslator]: Completed translation [2024-11-22 05:52:35,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35 WrapperNode [2024-11-22 05:52:35,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 05:52:35,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 05:52:35,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 05:52:35,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 05:52:35,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35" (1/1) ... [2024-11-22 05:52:36,093 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35" (1/1) ... [2024-11-22 05:52:36,826 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5636 [2024-11-22 05:52:36,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 05:52:36,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 05:52:36,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 05:52:36,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 05:52:36,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35" (1/1) ... [2024-11-22 05:52:36,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35" (1/1) ... [2024-11-22 05:52:37,008 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35" (1/1) ... [2024-11-22 05:52:37,324 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-11-22 05:52:37,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35" (1/1) ... [2024-11-22 05:52:37,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35" (1/1) ... [2024-11-22 05:52:37,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35" (1/1) ... [2024-11-22 05:52:37,520 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35" (1/1) ... [2024-11-22 05:52:37,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35" (1/1) ... [2024-11-22 05:52:37,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35" (1/1) ... [2024-11-22 05:52:37,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 05:52:37,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 05:52:37,690 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 05:52:37,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 05:52:37,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35" (1/1) ... [2024-11-22 05:52:37,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 05:52:37,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:52:37,729 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) [2024-11-22 05:52:37,731 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 [2024-11-22 05:52:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 05:52:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 05:52:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 05:52:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 05:52:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 05:52:38,424 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 05:52:38,426 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 05:52:42,376 INFO L? ?]: Removed 3870 outVars from TransFormulas that were not future-live. [2024-11-22 05:52:42,377 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 05:52:42,412 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 05:52:42,412 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 05:52:42,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:52:42 BoogieIcfgContainer [2024-11-22 05:52:42,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 05:52:42,416 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 05:52:42,417 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 05:52:42,420 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 05:52:42,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:52:34" (1/3) ... [2024-11-22 05:52:42,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efc4f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:52:42, skipping insertion in model container [2024-11-22 05:52:42,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:35" (2/3) ... [2024-11-22 05:52:42,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efc4f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:52:42, skipping insertion in model container [2024-11-22 05:52:42,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:52:42" (3/3) ... [2024-11-22 05:52:42,424 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sdlx.c [2024-11-22 05:52:42,443 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 05:52:42,443 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 05:52:42,541 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 05:52:42,548 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;@497ee8ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 05:52:42,548 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 05:52:42,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 1054 states, 1052 states have (on average 1.4990494296577948) internal successors, (1577), 1053 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:42,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 05:52:42,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:42,570 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] [2024-11-22 05:52:42,570 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:42,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:42,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1490863582, now seen corresponding path program 1 times [2024-11-22 05:52:42,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:42,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975266003] [2024-11-22 05:52:42,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:42,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:43,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:43,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:43,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975266003] [2024-11-22 05:52:43,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975266003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:43,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:43,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 05:52:43,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379736241] [2024-11-22 05:52:43,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:43,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 05:52:43,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:43,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 05:52:43,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:52:43,709 INFO L87 Difference]: Start difference. First operand has 1054 states, 1052 states have (on average 1.4990494296577948) internal successors, (1577), 1053 states have internal predecessors, (1577), 0 states have call successors, (0), 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 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:43,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:43,848 INFO L93 Difference]: Finished difference Result 2053 states and 3075 transitions. [2024-11-22 05:52:43,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 05:52:43,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-22 05:52:43,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:43,872 INFO L225 Difference]: With dead ends: 2053 [2024-11-22 05:52:43,873 INFO L226 Difference]: Without dead ends: 1053 [2024-11-22 05:52:43,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:52:43,885 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 0 mSDsluCounter, 3136 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4707 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:43,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4707 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:52:43,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2024-11-22 05:52:43,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1053. [2024-11-22 05:52:43,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1052 states have (on average 1.497148288973384) internal successors, (1575), 1052 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:43,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1575 transitions. [2024-11-22 05:52:43,976 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1575 transitions. Word has length 93 [2024-11-22 05:52:43,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:43,977 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1575 transitions. [2024-11-22 05:52:43,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:43,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1575 transitions. [2024-11-22 05:52:43,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-22 05:52:43,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:43,982 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] [2024-11-22 05:52:43,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 05:52:43,983 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:43,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:43,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1029564939, now seen corresponding path program 1 times [2024-11-22 05:52:43,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:43,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489272597] [2024-11-22 05:52:43,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:43,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:44,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:44,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:44,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489272597] [2024-11-22 05:52:44,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489272597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:44,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:44,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 05:52:44,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767881844] [2024-11-22 05:52:44,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:44,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 05:52:44,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:44,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 05:52:44,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:52:44,448 INFO L87 Difference]: Start difference. First operand 1053 states and 1575 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:44,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:44,516 INFO L93 Difference]: Finished difference Result 2054 states and 3073 transitions. [2024-11-22 05:52:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 05:52:44,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-22 05:52:44,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:44,522 INFO L225 Difference]: With dead ends: 2054 [2024-11-22 05:52:44,522 INFO L226 Difference]: Without dead ends: 1055 [2024-11-22 05:52:44,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:52:44,527 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 0 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4703 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:44,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4703 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:52:44,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2024-11-22 05:52:44,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1055. [2024-11-22 05:52:44,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 1054 states have (on average 1.4962049335863377) internal successors, (1577), 1054 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:44,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1577 transitions. [2024-11-22 05:52:44,608 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1577 transitions. Word has length 94 [2024-11-22 05:52:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:44,609 INFO L471 AbstractCegarLoop]: Abstraction has 1055 states and 1577 transitions. [2024-11-22 05:52:44,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:44,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1577 transitions. [2024-11-22 05:52:44,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-22 05:52:44,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:44,614 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] [2024-11-22 05:52:44,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 05:52:44,614 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:44,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:44,616 INFO L85 PathProgramCache]: Analyzing trace with hash 753776667, now seen corresponding path program 1 times [2024-11-22 05:52:44,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:44,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054806091] [2024-11-22 05:52:44,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:44,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:45,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:45,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:45,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054806091] [2024-11-22 05:52:45,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054806091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:45,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:45,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:52:45,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588180334] [2024-11-22 05:52:45,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:45,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:52:45,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:45,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:52:45,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:52:45,339 INFO L87 Difference]: Start difference. First operand 1055 states and 1577 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:45,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:45,431 INFO L93 Difference]: Finished difference Result 2136 states and 3194 transitions. [2024-11-22 05:52:45,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 05:52:45,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-22 05:52:45,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:45,439 INFO L225 Difference]: With dead ends: 2136 [2024-11-22 05:52:45,439 INFO L226 Difference]: Without dead ends: 1135 [2024-11-22 05:52:45,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:52:45,442 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 77 mSDsluCounter, 4806 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 6375 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:45,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 6375 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:52:45,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-11-22 05:52:45,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1132. [2024-11-22 05:52:45,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 1131 states have (on average 1.4951370468611849) internal successors, (1691), 1131 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1691 transitions. [2024-11-22 05:52:45,473 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1691 transitions. Word has length 95 [2024-11-22 05:52:45,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:45,474 INFO L471 AbstractCegarLoop]: Abstraction has 1132 states and 1691 transitions. [2024-11-22 05:52:45,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:45,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1691 transitions. [2024-11-22 05:52:45,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-22 05:52:45,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:45,480 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] [2024-11-22 05:52:45,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 05:52:45,480 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:45,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:45,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1493839726, now seen corresponding path program 1 times [2024-11-22 05:52:45,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:45,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127122105] [2024-11-22 05:52:45,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:45,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:46,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:46,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:46,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127122105] [2024-11-22 05:52:46,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127122105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:46,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:46,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 05:52:46,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745366188] [2024-11-22 05:52:46,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:46,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 05:52:46,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:46,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 05:52:46,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:52:46,221 INFO L87 Difference]: Start difference. First operand 1132 states and 1691 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:46,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:46,376 INFO L93 Difference]: Finished difference Result 2218 states and 3314 transitions. [2024-11-22 05:52:46,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:52:46,377 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-22 05:52:46,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:46,381 INFO L225 Difference]: With dead ends: 2218 [2024-11-22 05:52:46,381 INFO L226 Difference]: Without dead ends: 1140 [2024-11-22 05:52:46,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:52:46,386 INFO L432 NwaCegarLoop]: 1565 mSDtfsCounter, 77 mSDsluCounter, 7810 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 9375 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:46,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 9375 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:52:46,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2024-11-22 05:52:46,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1139. [2024-11-22 05:52:46,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 1138 states have (on average 1.4947275922671353) internal successors, (1701), 1138 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:46,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1701 transitions. [2024-11-22 05:52:46,415 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1701 transitions. Word has length 96 [2024-11-22 05:52:46,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:46,417 INFO L471 AbstractCegarLoop]: Abstraction has 1139 states and 1701 transitions. [2024-11-22 05:52:46,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:46,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1701 transitions. [2024-11-22 05:52:46,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-22 05:52:46,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:46,420 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] [2024-11-22 05:52:46,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 05:52:46,420 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:46,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:46,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1278487650, now seen corresponding path program 1 times [2024-11-22 05:52:46,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:46,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69818689] [2024-11-22 05:52:46,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:46,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:46,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:46,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:46,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69818689] [2024-11-22 05:52:46,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69818689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:46,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:46,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:52:46,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015655510] [2024-11-22 05:52:46,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:46,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:52:46,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:46,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:52:46,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:52:46,836 INFO L87 Difference]: Start difference. First operand 1139 states and 1701 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:46,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:46,923 INFO L93 Difference]: Finished difference Result 2230 states and 3331 transitions. [2024-11-22 05:52:46,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:46,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-22 05:52:46,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:46,930 INFO L225 Difference]: With dead ends: 2230 [2024-11-22 05:52:46,931 INFO L226 Difference]: Without dead ends: 1145 [2024-11-22 05:52:46,933 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 [2024-11-22 05:52:46,934 INFO L432 NwaCegarLoop]: 1570 mSDtfsCounter, 4 mSDsluCounter, 4698 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6268 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:46,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6268 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:52:46,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-11-22 05:52:46,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1145. [2024-11-22 05:52:46,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 1144 states have (on average 1.493881118881119) internal successors, (1709), 1144 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:46,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1709 transitions. [2024-11-22 05:52:46,967 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1709 transitions. Word has length 96 [2024-11-22 05:52:46,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:46,967 INFO L471 AbstractCegarLoop]: Abstraction has 1145 states and 1709 transitions. [2024-11-22 05:52:46,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:46,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1709 transitions. [2024-11-22 05:52:46,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 05:52:46,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:46,971 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] [2024-11-22 05:52:46,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 05:52:46,971 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:46,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:46,972 INFO L85 PathProgramCache]: Analyzing trace with hash 854073453, now seen corresponding path program 1 times [2024-11-22 05:52:46,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:46,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213433092] [2024-11-22 05:52:46,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:46,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:47,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:47,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:47,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213433092] [2024-11-22 05:52:47,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213433092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:47,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:47,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:52:47,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264099871] [2024-11-22 05:52:47,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:47,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:52:47,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:47,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:52:47,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:52:47,351 INFO L87 Difference]: Start difference. First operand 1145 states and 1709 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:47,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:47,444 INFO L93 Difference]: Finished difference Result 2242 states and 3347 transitions. [2024-11-22 05:52:47,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:47,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-22 05:52:47,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:47,451 INFO L225 Difference]: With dead ends: 2242 [2024-11-22 05:52:47,452 INFO L226 Difference]: Without dead ends: 1151 [2024-11-22 05:52:47,457 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 [2024-11-22 05:52:47,458 INFO L432 NwaCegarLoop]: 1570 mSDtfsCounter, 4 mSDsluCounter, 4698 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6268 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:47,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6268 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:52:47,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2024-11-22 05:52:47,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1151. [2024-11-22 05:52:47,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 1150 states have (on average 1.4930434782608695) internal successors, (1717), 1150 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:47,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1717 transitions. [2024-11-22 05:52:47,491 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1717 transitions. Word has length 97 [2024-11-22 05:52:47,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:47,495 INFO L471 AbstractCegarLoop]: Abstraction has 1151 states and 1717 transitions. [2024-11-22 05:52:47,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:47,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1717 transitions. [2024-11-22 05:52:47,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-22 05:52:47,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:47,497 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] [2024-11-22 05:52:47,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 05:52:47,498 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:47,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:47,498 INFO L85 PathProgramCache]: Analyzing trace with hash -561284586, now seen corresponding path program 1 times [2024-11-22 05:52:47,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:47,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377719197] [2024-11-22 05:52:47,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:47,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:47,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:47,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:47,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377719197] [2024-11-22 05:52:47,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377719197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:47,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:47,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:52:47,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757994945] [2024-11-22 05:52:47,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:47,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:52:47,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:47,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:52:47,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:52:47,850 INFO L87 Difference]: Start difference. First operand 1151 states and 1717 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:47,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:47,924 INFO L93 Difference]: Finished difference Result 2260 states and 3372 transitions. [2024-11-22 05:52:47,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:47,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-22 05:52:47,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:47,930 INFO L225 Difference]: With dead ends: 2260 [2024-11-22 05:52:47,930 INFO L226 Difference]: Without dead ends: 1163 [2024-11-22 05:52:47,932 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 [2024-11-22 05:52:47,933 INFO L432 NwaCegarLoop]: 1570 mSDtfsCounter, 4 mSDsluCounter, 4698 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6268 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:47,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6268 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:52:47,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2024-11-22 05:52:47,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1163. [2024-11-22 05:52:47,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1162 states have (on average 1.491394148020654) internal successors, (1733), 1162 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:47,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1733 transitions. [2024-11-22 05:52:47,961 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1733 transitions. Word has length 98 [2024-11-22 05:52:47,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:47,962 INFO L471 AbstractCegarLoop]: Abstraction has 1163 states and 1733 transitions. [2024-11-22 05:52:47,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:47,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1733 transitions. [2024-11-22 05:52:47,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-22 05:52:47,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:47,963 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] [2024-11-22 05:52:47,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 05:52:47,964 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:47,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:47,964 INFO L85 PathProgramCache]: Analyzing trace with hash 2027265228, now seen corresponding path program 1 times [2024-11-22 05:52:47,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:47,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245592597] [2024-11-22 05:52:47,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:47,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:48,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:48,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:48,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245592597] [2024-11-22 05:52:48,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245592597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:48,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:48,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:52:48,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686159270] [2024-11-22 05:52:48,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:48,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:52:48,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:48,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:52:48,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:52:48,763 INFO L87 Difference]: Start difference. First operand 1163 states and 1733 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:48,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:48,892 INFO L93 Difference]: Finished difference Result 2274 states and 3389 transitions. [2024-11-22 05:52:48,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:48,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-22 05:52:48,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:48,898 INFO L225 Difference]: With dead ends: 2274 [2024-11-22 05:52:48,898 INFO L226 Difference]: Without dead ends: 1165 [2024-11-22 05:52:48,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:52:48,901 INFO L432 NwaCegarLoop]: 1565 mSDtfsCounter, 1539 mSDsluCounter, 4680 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 6245 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:48,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 6245 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:52:48,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2024-11-22 05:52:48,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1165. [2024-11-22 05:52:48,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 1164 states have (on average 1.4905498281786942) internal successors, (1735), 1164 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:48,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1735 transitions. [2024-11-22 05:52:48,928 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1735 transitions. Word has length 98 [2024-11-22 05:52:48,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:48,928 INFO L471 AbstractCegarLoop]: Abstraction has 1165 states and 1735 transitions. [2024-11-22 05:52:48,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:48,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1735 transitions. [2024-11-22 05:52:48,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-22 05:52:48,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:48,930 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] [2024-11-22 05:52:48,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 05:52:48,930 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:48,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:48,931 INFO L85 PathProgramCache]: Analyzing trace with hash -267511030, now seen corresponding path program 1 times [2024-11-22 05:52:48,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:48,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491339331] [2024-11-22 05:52:48,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:48,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:49,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:49,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491339331] [2024-11-22 05:52:49,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491339331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:49,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:49,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:52:49,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577641796] [2024-11-22 05:52:49,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:49,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:52:49,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:49,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:52:49,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:52:49,271 INFO L87 Difference]: Start difference. First operand 1165 states and 1735 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:49,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:49,367 INFO L93 Difference]: Finished difference Result 2288 states and 3408 transitions. [2024-11-22 05:52:49,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:49,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-22 05:52:49,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:49,376 INFO L225 Difference]: With dead ends: 2288 [2024-11-22 05:52:49,376 INFO L226 Difference]: Without dead ends: 1177 [2024-11-22 05:52:49,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:52:49,378 INFO L432 NwaCegarLoop]: 1570 mSDtfsCounter, 4 mSDsluCounter, 6262 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7832 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:49,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7832 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:52:49,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2024-11-22 05:52:49,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1177. [2024-11-22 05:52:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1176 states have (on average 1.4889455782312926) internal successors, (1751), 1176 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1751 transitions. [2024-11-22 05:52:49,409 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1751 transitions. Word has length 99 [2024-11-22 05:52:49,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:49,409 INFO L471 AbstractCegarLoop]: Abstraction has 1177 states and 1751 transitions. [2024-11-22 05:52:49,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:49,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1751 transitions. [2024-11-22 05:52:49,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-22 05:52:49,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:49,411 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] [2024-11-22 05:52:49,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 05:52:49,411 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:49,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:49,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1576546778, now seen corresponding path program 1 times [2024-11-22 05:52:49,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:49,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031568226] [2024-11-22 05:52:49,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:49,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:49,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:49,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:49,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031568226] [2024-11-22 05:52:49,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031568226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:49,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:49,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:52:49,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27128151] [2024-11-22 05:52:49,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:49,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:52:49,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:49,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:52:49,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:52:49,911 INFO L87 Difference]: Start difference. First operand 1177 states and 1751 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:51,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:51,021 INFO L93 Difference]: Finished difference Result 2324 states and 3456 transitions. [2024-11-22 05:52:51,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:51,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-22 05:52:51,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:51,027 INFO L225 Difference]: With dead ends: 2324 [2024-11-22 05:52:51,027 INFO L226 Difference]: Without dead ends: 1201 [2024-11-22 05:52:51,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:52:51,030 INFO L432 NwaCegarLoop]: 1187 mSDtfsCounter, 1600 mSDsluCounter, 2371 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 3558 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:51,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 3558 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 05:52:51,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2024-11-22 05:52:51,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1192. [2024-11-22 05:52:51,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 1191 states have (on average 1.4886649874055415) internal successors, (1773), 1191 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1773 transitions. [2024-11-22 05:52:51,055 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1773 transitions. Word has length 99 [2024-11-22 05:52:51,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:51,055 INFO L471 AbstractCegarLoop]: Abstraction has 1192 states and 1773 transitions. [2024-11-22 05:52:51,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:51,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1773 transitions. [2024-11-22 05:52:51,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-22 05:52:51,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:51,057 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] [2024-11-22 05:52:51,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 05:52:51,058 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:51,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:51,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1178883812, now seen corresponding path program 1 times [2024-11-22 05:52:51,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:51,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056900629] [2024-11-22 05:52:51,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:51,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:51,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:51,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:51,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056900629] [2024-11-22 05:52:51,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056900629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:51,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:51,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:52:51,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165213377] [2024-11-22 05:52:51,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:51,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:52:51,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:51,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:52:51,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:52:51,341 INFO L87 Difference]: Start difference. First operand 1192 states and 1773 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:51,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:51,411 INFO L93 Difference]: Finished difference Result 2327 states and 3462 transitions. [2024-11-22 05:52:51,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:51,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-22 05:52:51,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:51,418 INFO L225 Difference]: With dead ends: 2327 [2024-11-22 05:52:51,418 INFO L226 Difference]: Without dead ends: 1204 [2024-11-22 05:52:51,420 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 [2024-11-22 05:52:51,421 INFO L432 NwaCegarLoop]: 1570 mSDtfsCounter, 4 mSDsluCounter, 4698 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6268 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:51,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6268 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:52:51,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2024-11-22 05:52:51,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1204. [2024-11-22 05:52:51,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 1203 states have (on average 1.4871155444721529) internal successors, (1789), 1203 states have internal predecessors, (1789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:51,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1789 transitions. [2024-11-22 05:52:51,497 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1789 transitions. Word has length 100 [2024-11-22 05:52:51,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:51,497 INFO L471 AbstractCegarLoop]: Abstraction has 1204 states and 1789 transitions. [2024-11-22 05:52:51,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:51,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1789 transitions. [2024-11-22 05:52:51,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-22 05:52:51,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:51,499 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] [2024-11-22 05:52:51,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 05:52:51,499 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:51,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:51,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2043303119, now seen corresponding path program 1 times [2024-11-22 05:52:51,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:51,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091260780] [2024-11-22 05:52:51,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:51,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:52,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:52,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:52,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091260780] [2024-11-22 05:52:52,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091260780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:52,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:52,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 05:52:52,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540750267] [2024-11-22 05:52:52,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:52,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 05:52:52,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:52,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 05:52:52,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:52:52,140 INFO L87 Difference]: Start difference. First operand 1204 states and 1789 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:52,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:52,438 INFO L93 Difference]: Finished difference Result 2346 states and 3487 transitions. [2024-11-22 05:52:52,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:52:52,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-22 05:52:52,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:52,444 INFO L225 Difference]: With dead ends: 2346 [2024-11-22 05:52:52,444 INFO L226 Difference]: Without dead ends: 1211 [2024-11-22 05:52:52,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 05:52:52,447 INFO L432 NwaCegarLoop]: 1550 mSDtfsCounter, 1490 mSDsluCounter, 6184 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 7734 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:52,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 7734 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 05:52:52,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-22 05:52:52,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1210. [2024-11-22 05:52:52,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1209 states have (on average 1.4855252274607114) internal successors, (1796), 1209 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:52,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1796 transitions. [2024-11-22 05:52:52,479 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1796 transitions. Word has length 100 [2024-11-22 05:52:52,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:52,479 INFO L471 AbstractCegarLoop]: Abstraction has 1210 states and 1796 transitions. [2024-11-22 05:52:52,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:52,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1796 transitions. [2024-11-22 05:52:52,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 05:52:52,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:52,481 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] [2024-11-22 05:52:52,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 05:52:52,482 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:52,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:52,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1003591868, now seen corresponding path program 1 times [2024-11-22 05:52:52,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:52,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176485150] [2024-11-22 05:52:52,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:52,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:52,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:52,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176485150] [2024-11-22 05:52:52,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176485150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:52,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:52,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:52:52,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130215796] [2024-11-22 05:52:52,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:52,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:52:52,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:52,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:52:52,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:52:52,789 INFO L87 Difference]: Start difference. First operand 1210 states and 1796 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:52,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:52,861 INFO L93 Difference]: Finished difference Result 2363 states and 3508 transitions. [2024-11-22 05:52:52,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:52,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-22 05:52:52,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:52,867 INFO L225 Difference]: With dead ends: 2363 [2024-11-22 05:52:52,867 INFO L226 Difference]: Without dead ends: 1222 [2024-11-22 05:52:52,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:52:52,870 INFO L432 NwaCegarLoop]: 1570 mSDtfsCounter, 4 mSDsluCounter, 4698 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6268 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:52,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6268 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:52:52,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2024-11-22 05:52:52,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1222. [2024-11-22 05:52:52,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 1.484029484029484) internal successors, (1812), 1221 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:52,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1812 transitions. [2024-11-22 05:52:52,897 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1812 transitions. Word has length 101 [2024-11-22 05:52:52,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:52,898 INFO L471 AbstractCegarLoop]: Abstraction has 1222 states and 1812 transitions. [2024-11-22 05:52:52,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:52,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1812 transitions. [2024-11-22 05:52:52,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 05:52:52,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:52,900 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] [2024-11-22 05:52:52,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 05:52:52,900 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:52,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:52,901 INFO L85 PathProgramCache]: Analyzing trace with hash -173225378, now seen corresponding path program 1 times [2024-11-22 05:52:52,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:52,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426392860] [2024-11-22 05:52:52,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:52,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:53,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:53,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:53,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426392860] [2024-11-22 05:52:53,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426392860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:53,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:53,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:52:53,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824245646] [2024-11-22 05:52:53,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:53,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:52:53,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:53,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:52:53,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:52:53,368 INFO L87 Difference]: Start difference. First operand 1222 states and 1812 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:53,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:53,673 INFO L93 Difference]: Finished difference Result 2378 states and 3525 transitions. [2024-11-22 05:52:53,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:53,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-22 05:52:53,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:53,678 INFO L225 Difference]: With dead ends: 2378 [2024-11-22 05:52:53,678 INFO L226 Difference]: Without dead ends: 1224 [2024-11-22 05:52:53,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:52:53,681 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 1585 mSDsluCounter, 3066 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 4602 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:53,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1585 Valid, 4602 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 05:52:53,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-22 05:52:53,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1221. [2024-11-22 05:52:53,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 1220 states have (on average 1.4836065573770492) internal successors, (1810), 1220 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:53,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1810 transitions. [2024-11-22 05:52:53,705 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1810 transitions. Word has length 101 [2024-11-22 05:52:53,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:53,706 INFO L471 AbstractCegarLoop]: Abstraction has 1221 states and 1810 transitions. [2024-11-22 05:52:53,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:53,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1810 transitions. [2024-11-22 05:52:53,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-22 05:52:53,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:53,707 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] [2024-11-22 05:52:53,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 05:52:53,708 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:53,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:53,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1554663090, now seen corresponding path program 1 times [2024-11-22 05:52:53,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:53,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501075197] [2024-11-22 05:52:53,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:53,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:54,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:54,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:54,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501075197] [2024-11-22 05:52:54,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501075197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:54,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:54,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:52:54,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890600295] [2024-11-22 05:52:54,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:54,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:52:54,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:54,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:52:54,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:52:54,046 INFO L87 Difference]: Start difference. First operand 1221 states and 1810 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:54,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:54,112 INFO L93 Difference]: Finished difference Result 2386 states and 3538 transitions. [2024-11-22 05:52:54,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:54,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-22 05:52:54,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:54,118 INFO L225 Difference]: With dead ends: 2386 [2024-11-22 05:52:54,118 INFO L226 Difference]: Without dead ends: 1233 [2024-11-22 05:52:54,121 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 [2024-11-22 05:52:54,122 INFO L432 NwaCegarLoop]: 1570 mSDtfsCounter, 4 mSDsluCounter, 4698 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6268 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:54,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6268 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:52:54,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2024-11-22 05:52:54,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1233. [2024-11-22 05:52:54,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1233 states, 1232 states have (on average 1.4821428571428572) internal successors, (1826), 1232 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:54,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1826 transitions. [2024-11-22 05:52:54,147 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1826 transitions. Word has length 102 [2024-11-22 05:52:54,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:54,147 INFO L471 AbstractCegarLoop]: Abstraction has 1233 states and 1826 transitions. [2024-11-22 05:52:54,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:54,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1826 transitions. [2024-11-22 05:52:54,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-22 05:52:54,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:54,149 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] [2024-11-22 05:52:54,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 05:52:54,149 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:54,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:54,150 INFO L85 PathProgramCache]: Analyzing trace with hash -400526482, now seen corresponding path program 1 times [2024-11-22 05:52:54,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:54,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885387129] [2024-11-22 05:52:54,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:54,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:54,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:54,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:54,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885387129] [2024-11-22 05:52:54,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885387129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:54,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:54,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:52:54,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343581601] [2024-11-22 05:52:54,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:54,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:52:54,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:54,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:52:54,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:52:54,427 INFO L87 Difference]: Start difference. First operand 1233 states and 1826 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:54,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:54,487 INFO L93 Difference]: Finished difference Result 2410 states and 3570 transitions. [2024-11-22 05:52:54,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:54,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-11-22 05:52:54,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:54,492 INFO L225 Difference]: With dead ends: 2410 [2024-11-22 05:52:54,493 INFO L226 Difference]: Without dead ends: 1245 [2024-11-22 05:52:54,495 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 [2024-11-22 05:52:54,496 INFO L432 NwaCegarLoop]: 1570 mSDtfsCounter, 4 mSDsluCounter, 4698 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6268 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:54,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6268 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:52:54,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2024-11-22 05:52:54,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1245. [2024-11-22 05:52:54,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1244 states have (on average 1.4807073954983923) internal successors, (1842), 1244 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:54,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1842 transitions. [2024-11-22 05:52:54,523 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1842 transitions. Word has length 103 [2024-11-22 05:52:54,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:54,523 INFO L471 AbstractCegarLoop]: Abstraction has 1245 states and 1842 transitions. [2024-11-22 05:52:54,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:54,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1842 transitions. [2024-11-22 05:52:54,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 05:52:54,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:54,525 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] [2024-11-22 05:52:54,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 05:52:54,525 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:54,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:54,526 INFO L85 PathProgramCache]: Analyzing trace with hash -979080832, now seen corresponding path program 1 times [2024-11-22 05:52:54,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:54,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458757396] [2024-11-22 05:52:54,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:54,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:54,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:54,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:54,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458757396] [2024-11-22 05:52:54,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458757396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:54,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:54,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:52:54,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962886270] [2024-11-22 05:52:54,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:54,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:52:54,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:54,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:52:54,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:52:54,819 INFO L87 Difference]: Start difference. First operand 1245 states and 1842 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:54,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:54,880 INFO L93 Difference]: Finished difference Result 2434 states and 3602 transitions. [2024-11-22 05:52:54,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:54,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-22 05:52:54,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:54,885 INFO L225 Difference]: With dead ends: 2434 [2024-11-22 05:52:54,885 INFO L226 Difference]: Without dead ends: 1257 [2024-11-22 05:52:54,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:52:54,887 INFO L432 NwaCegarLoop]: 1570 mSDtfsCounter, 4 mSDsluCounter, 4698 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6268 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:54,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6268 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:52:54,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2024-11-22 05:52:54,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2024-11-22 05:52:54,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1256 states have (on average 1.4792993630573248) internal successors, (1858), 1256 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:54,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1858 transitions. [2024-11-22 05:52:54,910 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1858 transitions. Word has length 104 [2024-11-22 05:52:54,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:54,910 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1858 transitions. [2024-11-22 05:52:54,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:54,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1858 transitions. [2024-11-22 05:52:54,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 05:52:54,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:54,912 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] [2024-11-22 05:52:54,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 05:52:54,912 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:54,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:54,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1784444128, now seen corresponding path program 1 times [2024-11-22 05:52:54,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:54,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713542713] [2024-11-22 05:52:54,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:54,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:55,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:55,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:55,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713542713] [2024-11-22 05:52:55,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713542713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:55,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:55,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:52:55,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469710171] [2024-11-22 05:52:55,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:55,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:52:55,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:55,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:52:55,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:52:55,200 INFO L87 Difference]: Start difference. First operand 1257 states and 1858 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:55,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:55,280 INFO L93 Difference]: Finished difference Result 2458 states and 3634 transitions. [2024-11-22 05:52:55,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:55,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-22 05:52:55,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:55,285 INFO L225 Difference]: With dead ends: 2458 [2024-11-22 05:52:55,285 INFO L226 Difference]: Without dead ends: 1269 [2024-11-22 05:52:55,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:52:55,287 INFO L432 NwaCegarLoop]: 1570 mSDtfsCounter, 4 mSDsluCounter, 6262 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7832 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:55,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7832 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:52:55,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-11-22 05:52:55,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1269. [2024-11-22 05:52:55,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1268 states have (on average 1.4779179810725551) internal successors, (1874), 1268 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:55,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1874 transitions. [2024-11-22 05:52:55,310 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1874 transitions. Word has length 105 [2024-11-22 05:52:55,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:55,311 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 1874 transitions. [2024-11-22 05:52:55,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:55,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1874 transitions. [2024-11-22 05:52:55,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-22 05:52:55,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:55,312 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] [2024-11-22 05:52:55,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 05:52:55,313 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:55,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:55,314 INFO L85 PathProgramCache]: Analyzing trace with hash 427417422, now seen corresponding path program 1 times [2024-11-22 05:52:55,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:55,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3749972] [2024-11-22 05:52:55,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:55,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:56,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:56,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:56,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3749972] [2024-11-22 05:52:56,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3749972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:56,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:56,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 05:52:56,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485666686] [2024-11-22 05:52:56,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:56,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 05:52:56,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:56,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 05:52:56,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 05:52:56,156 INFO L87 Difference]: Start difference. First operand 1269 states and 1874 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:56,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:56,410 INFO L93 Difference]: Finished difference Result 2482 states and 3666 transitions. [2024-11-22 05:52:56,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 05:52:56,411 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2024-11-22 05:52:56,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:56,415 INFO L225 Difference]: With dead ends: 2482 [2024-11-22 05:52:56,416 INFO L226 Difference]: Without dead ends: 1281 [2024-11-22 05:52:56,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-22 05:52:56,418 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 1549 mSDsluCounter, 10905 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 12467 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:56,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1549 Valid, 12467 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:52:56,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2024-11-22 05:52:56,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1281. [2024-11-22 05:52:56,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1280 states have (on average 1.4765625) internal successors, (1890), 1280 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:56,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 1890 transitions. [2024-11-22 05:52:56,451 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 1890 transitions. Word has length 106 [2024-11-22 05:52:56,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:56,452 INFO L471 AbstractCegarLoop]: Abstraction has 1281 states and 1890 transitions. [2024-11-22 05:52:56,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:56,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 1890 transitions. [2024-11-22 05:52:56,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 05:52:56,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:56,454 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] [2024-11-22 05:52:56,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 05:52:56,454 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:56,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:56,455 INFO L85 PathProgramCache]: Analyzing trace with hash -710688814, now seen corresponding path program 1 times [2024-11-22 05:52:56,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:56,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545715077] [2024-11-22 05:52:56,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:56,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:52:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:52:56,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:52:56,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:52:56,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545715077] [2024-11-22 05:52:56,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545715077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:52:56,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:52:56,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:52:56,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916739851] [2024-11-22 05:52:56,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:52:56,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:52:56,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:52:56,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:52:56,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:52:56,899 INFO L87 Difference]: Start difference. First operand 1281 states and 1890 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:57,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:52:57,764 INFO L93 Difference]: Finished difference Result 2662 states and 3915 transitions. [2024-11-22 05:52:57,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:52:57,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-22 05:52:57,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:52:57,770 INFO L225 Difference]: With dead ends: 2662 [2024-11-22 05:52:57,771 INFO L226 Difference]: Without dead ends: 1449 [2024-11-22 05:52:57,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-22 05:52:57,774 INFO L432 NwaCegarLoop]: 1520 mSDtfsCounter, 2035 mSDsluCounter, 4203 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 5723 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 05:52:57,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 5723 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 05:52:57,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2024-11-22 05:52:57,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1297. [2024-11-22 05:52:57,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 1296 states have (on average 1.4737654320987654) internal successors, (1910), 1296 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:57,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1910 transitions. [2024-11-22 05:52:57,808 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1910 transitions. Word has length 107 [2024-11-22 05:52:57,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:52:57,808 INFO L471 AbstractCegarLoop]: Abstraction has 1297 states and 1910 transitions. [2024-11-22 05:52:57,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:52:57,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1910 transitions. [2024-11-22 05:52:57,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2024-11-22 05:52:57,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:52:57,822 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:52:57,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 05:52:57,822 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:52:57,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:52:57,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1808258325, now seen corresponding path program 1 times [2024-11-22 05:52:57,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:52:57,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416507383] [2024-11-22 05:52:57,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:52:57,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms