./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_bpbs_p1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_bpbs_p1.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 c014373e6f19ec2d953a46fddee3dc12cdfbd6e3fd8b2254991c2ccaa9c12571 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 19:16:09,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:16:09,775 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 19:16:09,782 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:16:09,785 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:16:09,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:16:09,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:16:09,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:16:09,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:16:09,811 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:16:09,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:16:09,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:16:09,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:16:09,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:16:09,813 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:16:09,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:16:09,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:16:09,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:16:09,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:16:09,815 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:16:09,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:16:09,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:16:09,818 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:16:09,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:16:09,818 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:16:09,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:16:09,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:16:09,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:16:09,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:16:09,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:16:09,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:16:09,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:16:09,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:16:09,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:16:09,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:16:09,820 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:16:09,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:16:09,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:16:09,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:16:09,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c014373e6f19ec2d953a46fddee3dc12cdfbd6e3fd8b2254991c2ccaa9c12571 [2024-11-08 19:16:10,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:16:10,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:16:10,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:16:10,053 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:16:10,053 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:16:10,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_bpbs_p1.c [2024-11-08 19:16:11,378 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:16:11,649 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:16:11,650 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_bpbs_p1.c [2024-11-08 19:16:11,668 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2412127c/8b14859b383c453f95fff19ef01bfaf9/FLAG928431493 [2024-11-08 19:16:11,967 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2412127c/8b14859b383c453f95fff19ef01bfaf9 [2024-11-08 19:16:11,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:16:11,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:16:11,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:16:11,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:16:11,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:16:11,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:16:11" (1/1) ... [2024-11-08 19:16:11,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f8ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:11, skipping insertion in model container [2024-11-08 19:16:11,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:16:11" (1/1) ... [2024-11-08 19:16:12,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:16:12,257 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.vis_arrays_bpbs_p1.c[1258,1271] [2024-11-08 19:16:12,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:16:12,566 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:16:12,576 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.vis_arrays_bpbs_p1.c[1258,1271] [2024-11-08 19:16:12,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:16:12,720 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:16:12,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12 WrapperNode [2024-11-08 19:16:12,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:16:12,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:16:12,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:16:12,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:16:12,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12" (1/1) ... [2024-11-08 19:16:12,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12" (1/1) ... [2024-11-08 19:16:13,242 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5149 [2024-11-08 19:16:13,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:16:13,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:16:13,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:16:13,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:16:13,253 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12" (1/1) ... [2024-11-08 19:16:13,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12" (1/1) ... [2024-11-08 19:16:13,437 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12" (1/1) ... [2024-11-08 19:16:13,500 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 19:16:13,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12" (1/1) ... [2024-11-08 19:16:13,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12" (1/1) ... [2024-11-08 19:16:13,654 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12" (1/1) ... [2024-11-08 19:16:13,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12" (1/1) ... [2024-11-08 19:16:13,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12" (1/1) ... [2024-11-08 19:16:13,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12" (1/1) ... [2024-11-08 19:16:13,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:16:13,892 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:16:13,892 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:16:13,892 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:16:13,893 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12" (1/1) ... [2024-11-08 19:16:13,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:16:13,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 19:16:13,938 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) [2024-11-08 19:16:13,940 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 [2024-11-08 19:16:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:16:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:16:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:16:13,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:16:14,313 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:16:14,315 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:16:17,578 INFO L? ?]: Removed 3314 outVars from TransFormulas that were not future-live. [2024-11-08 19:16:17,578 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:16:17,619 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:16:17,620 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:16:17,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:16:17 BoogieIcfgContainer [2024-11-08 19:16:17,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:16:17,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:16:17,624 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:16:17,627 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:16:17,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:16:11" (1/3) ... [2024-11-08 19:16:17,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b704fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:16:17, skipping insertion in model container [2024-11-08 19:16:17,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:12" (2/3) ... [2024-11-08 19:16:17,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b704fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:16:17, skipping insertion in model container [2024-11-08 19:16:17,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:16:17" (3/3) ... [2024-11-08 19:16:17,629 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_bpbs_p1.c [2024-11-08 19:16:17,642 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:16:17,643 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:16:17,728 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:16:17,734 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;@590ef0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:16:17,734 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:16:17,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 1246 states, 1244 states have (on average 1.4991961414790997) internal successors, (1865), 1245 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:17,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-08 19:16:17,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:17,775 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:17,778 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:17,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:17,788 INFO L85 PathProgramCache]: Analyzing trace with hash -377916464, now seen corresponding path program 1 times [2024-11-08 19:16:17,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:17,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769780563] [2024-11-08 19:16:17,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:17,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:22,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:16:22,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:22,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769780563] [2024-11-08 19:16:22,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769780563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:22,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:22,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:16:22,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519057821] [2024-11-08 19:16:22,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:22,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:16:22,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:22,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:16:22,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:16:22,965 INFO L87 Difference]: Start difference. First operand has 1246 states, 1244 states have (on average 1.4991961414790997) internal successors, (1865), 1245 states have internal predecessors, (1865), 0 states have call successors, (0), 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 8 states, 8 states have (on average 33.875) internal successors, (271), 8 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:23,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:23,474 INFO L93 Difference]: Finished difference Result 2688 states and 4028 transitions. [2024-11-08 19:16:23,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:16:23,476 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 33.875) internal successors, (271), 8 states have internal predecessors, (271), 0 states have call successors, (0), 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 271 [2024-11-08 19:16:23,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:23,497 INFO L225 Difference]: With dead ends: 2688 [2024-11-08 19:16:23,498 INFO L226 Difference]: Without dead ends: 1576 [2024-11-08 19:16:23,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:23,507 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 2702 mSDsluCounter, 8988 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2702 SdHoareTripleChecker+Valid, 10789 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:23,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2702 Valid, 10789 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:16:23,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2024-11-08 19:16:23,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1385. [2024-11-08 19:16:23,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1384 states have (on average 1.4971098265895955) internal successors, (2072), 1384 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 2072 transitions. [2024-11-08 19:16:23,592 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 2072 transitions. Word has length 271 [2024-11-08 19:16:23,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:23,592 INFO L471 AbstractCegarLoop]: Abstraction has 1385 states and 2072 transitions. [2024-11-08 19:16:23,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 33.875) internal successors, (271), 8 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:23,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 2072 transitions. [2024-11-08 19:16:23,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-08 19:16:23,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:23,597 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:23,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:16:23,598 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:23,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:23,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1741884918, now seen corresponding path program 1 times [2024-11-08 19:16:23,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:23,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890218187] [2024-11-08 19:16:23,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:23,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:24,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:16:24,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:24,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890218187] [2024-11-08 19:16:24,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890218187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:24,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:24,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:16:24,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304894224] [2024-11-08 19:16:24,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:24,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:16:24,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:24,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:16:24,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:16:24,572 INFO L87 Difference]: Start difference. First operand 1385 states and 2072 transitions. Second operand has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:24,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:24,603 INFO L93 Difference]: Finished difference Result 1389 states and 2076 transitions. [2024-11-08 19:16:24,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:16:24,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 272 [2024-11-08 19:16:24,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:24,608 INFO L225 Difference]: With dead ends: 1389 [2024-11-08 19:16:24,609 INFO L226 Difference]: Without dead ends: 1387 [2024-11-08 19:16:24,609 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 [2024-11-08 19:16:24,610 INFO L432 NwaCegarLoop]: 1859 mSDtfsCounter, 0 mSDsluCounter, 3712 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5571 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 [2024-11-08 19:16:24,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5571 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:16:24,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-11-08 19:16:24,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1387. [2024-11-08 19:16:24,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1386 states have (on average 1.4963924963924964) internal successors, (2074), 1386 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:24,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2074 transitions. [2024-11-08 19:16:24,631 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2074 transitions. Word has length 272 [2024-11-08 19:16:24,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:24,632 INFO L471 AbstractCegarLoop]: Abstraction has 1387 states and 2074 transitions. [2024-11-08 19:16:24,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:24,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2074 transitions. [2024-11-08 19:16:24,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-08 19:16:24,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:24,635 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:24,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:16:24,635 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:24,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:24,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1837839272, now seen corresponding path program 1 times [2024-11-08 19:16:24,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:24,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996967316] [2024-11-08 19:16:24,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:24,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:16:25,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:25,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996967316] [2024-11-08 19:16:25,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996967316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:25,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:25,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:16:25,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675884298] [2024-11-08 19:16:25,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:25,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:16:25,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:25,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:16:25,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:16:25,868 INFO L87 Difference]: Start difference. First operand 1387 states and 2074 transitions. Second operand has 4 states, 4 states have (on average 68.25) internal successors, (273), 4 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:25,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:25,936 INFO L93 Difference]: Finished difference Result 2500 states and 3740 transitions. [2024-11-08 19:16:25,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:16:25,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.25) internal successors, (273), 4 states have internal predecessors, (273), 0 states have call successors, (0), 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 273 [2024-11-08 19:16:25,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:25,945 INFO L225 Difference]: With dead ends: 2500 [2024-11-08 19:16:25,945 INFO L226 Difference]: Without dead ends: 1389 [2024-11-08 19:16:25,947 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 [2024-11-08 19:16:25,952 INFO L432 NwaCegarLoop]: 1859 mSDtfsCounter, 0 mSDsluCounter, 3708 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5567 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 [2024-11-08 19:16:25,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5567 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:16:25,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2024-11-08 19:16:25,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1389. [2024-11-08 19:16:25,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 1388 states have (on average 1.4956772334293948) internal successors, (2076), 1388 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:25,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 2076 transitions. [2024-11-08 19:16:25,993 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 2076 transitions. Word has length 273 [2024-11-08 19:16:25,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:25,994 INFO L471 AbstractCegarLoop]: Abstraction has 1389 states and 2076 transitions. [2024-11-08 19:16:25,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.25) internal successors, (273), 4 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:25,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 2076 transitions. [2024-11-08 19:16:26,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-08 19:16:26,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:26,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:26,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:16:26,004 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:26,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:26,005 INFO L85 PathProgramCache]: Analyzing trace with hash 40478371, now seen corresponding path program 1 times [2024-11-08 19:16:26,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:26,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089249579] [2024-11-08 19:16:26,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:26,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:29,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:16:29,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:29,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089249579] [2024-11-08 19:16:29,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089249579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:29,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:29,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:16:29,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929167338] [2024-11-08 19:16:29,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:29,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:16:29,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:29,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:16:29,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:16:29,451 INFO L87 Difference]: Start difference. First operand 1389 states and 2076 transitions. Second operand has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:29,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:29,823 INFO L93 Difference]: Finished difference Result 2986 states and 4463 transitions. [2024-11-08 19:16:29,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:16:29,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 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 274 [2024-11-08 19:16:29,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:29,828 INFO L225 Difference]: With dead ends: 2986 [2024-11-08 19:16:29,829 INFO L226 Difference]: Without dead ends: 1851 [2024-11-08 19:16:29,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:29,834 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 2674 mSDsluCounter, 8989 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2674 SdHoareTripleChecker+Valid, 10790 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:29,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2674 Valid, 10790 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:16:29,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2024-11-08 19:16:29,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1633. [2024-11-08 19:16:29,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1632 states have (on average 1.4938725490196079) internal successors, (2438), 1632 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:29,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2438 transitions. [2024-11-08 19:16:29,861 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2438 transitions. Word has length 274 [2024-11-08 19:16:29,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:29,861 INFO L471 AbstractCegarLoop]: Abstraction has 1633 states and 2438 transitions. [2024-11-08 19:16:29,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:29,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2438 transitions. [2024-11-08 19:16:29,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-08 19:16:29,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:29,864 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:29,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:16:29,865 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:29,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:29,865 INFO L85 PathProgramCache]: Analyzing trace with hash 525572095, now seen corresponding path program 1 times [2024-11-08 19:16:29,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:29,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20429237] [2024-11-08 19:16:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:29,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:34,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:16:34,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:34,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20429237] [2024-11-08 19:16:34,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20429237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:34,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:34,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:16:34,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013574250] [2024-11-08 19:16:34,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:34,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:16:34,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:34,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:16:34,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:16:34,143 INFO L87 Difference]: Start difference. First operand 1633 states and 2438 transitions. Second operand has 8 states, 8 states have (on average 34.375) internal successors, (275), 8 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:34,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:34,619 INFO L93 Difference]: Finished difference Result 3466 states and 5175 transitions. [2024-11-08 19:16:34,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:16:34,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.375) internal successors, (275), 8 states have internal predecessors, (275), 0 states have call successors, (0), 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 275 [2024-11-08 19:16:34,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:34,625 INFO L225 Difference]: With dead ends: 3466 [2024-11-08 19:16:34,626 INFO L226 Difference]: Without dead ends: 2343 [2024-11-08 19:16:34,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:34,629 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 2686 mSDsluCounter, 7194 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2686 SdHoareTripleChecker+Valid, 8995 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:34,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2686 Valid, 8995 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:16:34,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2343 states. [2024-11-08 19:16:34,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2343 to 2137. [2024-11-08 19:16:34,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2137 states, 2136 states have (on average 1.4915730337078652) internal successors, (3186), 2136 states have internal predecessors, (3186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:34,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 3186 transitions. [2024-11-08 19:16:34,661 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 3186 transitions. Word has length 275 [2024-11-08 19:16:34,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:34,661 INFO L471 AbstractCegarLoop]: Abstraction has 2137 states and 3186 transitions. [2024-11-08 19:16:34,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.375) internal successors, (275), 8 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:34,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 3186 transitions. [2024-11-08 19:16:34,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-08 19:16:34,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:34,665 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:34,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:16:34,665 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:34,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:34,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1286159528, now seen corresponding path program 1 times [2024-11-08 19:16:34,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:34,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136833810] [2024-11-08 19:16:34,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:34,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:37,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:16:37,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:37,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136833810] [2024-11-08 19:16:37,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136833810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:37,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:37,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:16:37,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912083592] [2024-11-08 19:16:37,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:37,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:16:37,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:37,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:16:37,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:16:37,252 INFO L87 Difference]: Start difference. First operand 2137 states and 3186 transitions. Second operand has 8 states, 8 states have (on average 34.5) internal successors, (276), 8 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:37,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:37,651 INFO L93 Difference]: Finished difference Result 4437 states and 6617 transitions. [2024-11-08 19:16:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:16:37,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.5) internal successors, (276), 8 states have internal predecessors, (276), 0 states have call successors, (0), 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 276 [2024-11-08 19:16:37,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:37,661 INFO L225 Difference]: With dead ends: 4437 [2024-11-08 19:16:37,662 INFO L226 Difference]: Without dead ends: 3324 [2024-11-08 19:16:37,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:37,665 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 2278 mSDsluCounter, 8990 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 10791 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:37,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2278 Valid, 10791 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:16:37,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2024-11-08 19:16:37,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3133. [2024-11-08 19:16:37,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 1.4891443167305236) internal successors, (4664), 3132 states have internal predecessors, (4664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:37,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 4664 transitions. [2024-11-08 19:16:37,725 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 4664 transitions. Word has length 276 [2024-11-08 19:16:37,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:37,726 INFO L471 AbstractCegarLoop]: Abstraction has 3133 states and 4664 transitions. [2024-11-08 19:16:37,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.5) internal successors, (276), 8 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:37,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 4664 transitions. [2024-11-08 19:16:37,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-08 19:16:37,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:37,736 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:37,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:16:37,737 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:37,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:37,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1771577786, now seen corresponding path program 1 times [2024-11-08 19:16:37,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:37,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129691051] [2024-11-08 19:16:37,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:37,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:40,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:16:40,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:40,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129691051] [2024-11-08 19:16:40,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129691051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:40,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:40,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 19:16:40,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181458921] [2024-11-08 19:16:40,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:40,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:16:40,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:40,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:16:40,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:16:40,387 INFO L87 Difference]: Start difference. First operand 3133 states and 4664 transitions. Second operand has 12 states, 12 states have (on average 23.083333333333332) internal successors, (277), 12 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:40,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:40,805 INFO L93 Difference]: Finished difference Result 6681 states and 9924 transitions. [2024-11-08 19:16:40,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:16:40,805 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.083333333333332) internal successors, (277), 12 states have internal predecessors, (277), 0 states have call successors, (0), 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 277 [2024-11-08 19:16:40,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:40,820 INFO L225 Difference]: With dead ends: 6681 [2024-11-08 19:16:40,820 INFO L226 Difference]: Without dead ends: 5485 [2024-11-08 19:16:40,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:16:40,824 INFO L432 NwaCegarLoop]: 1823 mSDtfsCounter, 2724 mSDsluCounter, 14594 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 16417 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:40,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2724 Valid, 16417 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:16:40,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5485 states. [2024-11-08 19:16:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5485 to 5049. [2024-11-08 19:16:40,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5049 states, 5048 states have (on average 1.490095087163233) internal successors, (7522), 5048 states have internal predecessors, (7522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:40,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5049 states to 5049 states and 7522 transitions. [2024-11-08 19:16:40,899 INFO L78 Accepts]: Start accepts. Automaton has 5049 states and 7522 transitions. Word has length 277 [2024-11-08 19:16:40,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:40,900 INFO L471 AbstractCegarLoop]: Abstraction has 5049 states and 7522 transitions. [2024-11-08 19:16:40,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.083333333333332) internal successors, (277), 12 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:40,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5049 states and 7522 transitions. [2024-11-08 19:16:40,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-08 19:16:40,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:40,908 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:40,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:16:40,908 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:40,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:40,909 INFO L85 PathProgramCache]: Analyzing trace with hash 427984671, now seen corresponding path program 1 times [2024-11-08 19:16:40,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:40,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015230202] [2024-11-08 19:16:40,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:40,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:43,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:16:43,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:43,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015230202] [2024-11-08 19:16:43,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015230202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:43,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:43,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:16:43,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550787753] [2024-11-08 19:16:43,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:43,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:16:43,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:43,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:16:43,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:16:43,314 INFO L87 Difference]: Start difference. First operand 5049 states and 7522 transitions. Second operand has 8 states, 8 states have (on average 34.625) internal successors, (277), 8 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:43,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:43,736 INFO L93 Difference]: Finished difference Result 9441 states and 14059 transitions. [2024-11-08 19:16:43,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:16:43,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.625) internal successors, (277), 8 states have internal predecessors, (277), 0 states have call successors, (0), 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 277 [2024-11-08 19:16:43,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:43,757 INFO L225 Difference]: With dead ends: 9441 [2024-11-08 19:16:43,758 INFO L226 Difference]: Without dead ends: 8328 [2024-11-08 19:16:43,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:43,763 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 2265 mSDsluCounter, 8990 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 10791 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:43,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 10791 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:16:43,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8328 states. [2024-11-08 19:16:43,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8328 to 8137. [2024-11-08 19:16:43,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 8136 states have (on average 1.4879547689282202) internal successors, (12106), 8136 states have internal predecessors, (12106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:43,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 12106 transitions. [2024-11-08 19:16:43,881 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 12106 transitions. Word has length 277 [2024-11-08 19:16:43,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:43,881 INFO L471 AbstractCegarLoop]: Abstraction has 8137 states and 12106 transitions. [2024-11-08 19:16:43,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.625) internal successors, (277), 8 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:43,882 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 12106 transitions. [2024-11-08 19:16:43,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-08 19:16:43,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:43,893 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:43,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:16:43,894 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:43,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:43,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1793413138, now seen corresponding path program 1 times [2024-11-08 19:16:43,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:43,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852070367] [2024-11-08 19:16:43,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:43,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:16:47,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:47,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852070367] [2024-11-08 19:16:47,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852070367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:47,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:47,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 19:16:47,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010464125] [2024-11-08 19:16:47,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:47,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 19:16:47,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:47,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 19:16:47,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:16:47,493 INFO L87 Difference]: Start difference. First operand 8137 states and 12106 transitions. Second operand has 14 states, 14 states have (on average 19.857142857142858) internal successors, (278), 14 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:48,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:48,206 INFO L93 Difference]: Finished difference Result 10901 states and 16123 transitions. [2024-11-08 19:16:48,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:16:48,207 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.857142857142858) internal successors, (278), 14 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 278 [2024-11-08 19:16:48,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:48,237 INFO L225 Difference]: With dead ends: 10901 [2024-11-08 19:16:48,237 INFO L226 Difference]: Without dead ends: 9569 [2024-11-08 19:16:48,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:16:48,244 INFO L432 NwaCegarLoop]: 2058 mSDtfsCounter, 2893 mSDsluCounter, 19428 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 21486 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:48,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 21486 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:16:48,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2024-11-08 19:16:48,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 8201. [2024-11-08 19:16:48,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8201 states, 8200 states have (on average 1.4880487804878049) internal successors, (12202), 8200 states have internal predecessors, (12202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:48,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8201 states to 8201 states and 12202 transitions. [2024-11-08 19:16:48,357 INFO L78 Accepts]: Start accepts. Automaton has 8201 states and 12202 transitions. Word has length 278 [2024-11-08 19:16:48,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:48,357 INFO L471 AbstractCegarLoop]: Abstraction has 8201 states and 12202 transitions. [2024-11-08 19:16:48,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.857142857142858) internal successors, (278), 14 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:48,357 INFO L276 IsEmpty]: Start isEmpty. Operand 8201 states and 12202 transitions. [2024-11-08 19:16:48,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-08 19:16:48,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:48,370 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:48,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:16:48,370 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:48,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:48,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1199352049, now seen corresponding path program 1 times [2024-11-08 19:16:48,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:48,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599968093] [2024-11-08 19:16:48,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:48,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:50,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:16:50,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:50,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599968093] [2024-11-08 19:16:50,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599968093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:50,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:50,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:16:50,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734162068] [2024-11-08 19:16:50,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:50,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:16:50,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:50,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:16:50,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:16:50,568 INFO L87 Difference]: Start difference. First operand 8201 states and 12202 transitions. Second operand has 8 states, 8 states have (on average 34.75) internal successors, (278), 8 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:50,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:50,915 INFO L93 Difference]: Finished difference Result 10900 states and 16105 transitions. [2024-11-08 19:16:50,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:16:50,916 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.75) internal successors, (278), 8 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 278 [2024-11-08 19:16:50,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:50,944 INFO L225 Difference]: With dead ends: 10900 [2024-11-08 19:16:50,947 INFO L226 Difference]: Without dead ends: 8989 [2024-11-08 19:16:50,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:50,959 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 2278 mSDsluCounter, 8989 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 10790 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:50,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2278 Valid, 10790 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:16:50,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8989 states. [2024-11-08 19:16:51,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8989 to 8297. [2024-11-08 19:16:51,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8297 states, 8296 states have (on average 1.482401157184185) internal successors, (12298), 8296 states have internal predecessors, (12298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:51,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8297 states to 8297 states and 12298 transitions. [2024-11-08 19:16:51,123 INFO L78 Accepts]: Start accepts. Automaton has 8297 states and 12298 transitions. Word has length 278 [2024-11-08 19:16:51,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:51,124 INFO L471 AbstractCegarLoop]: Abstraction has 8297 states and 12298 transitions. [2024-11-08 19:16:51,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.75) internal successors, (278), 8 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:51,124 INFO L276 IsEmpty]: Start isEmpty. Operand 8297 states and 12298 transitions. [2024-11-08 19:16:51,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-08 19:16:51,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:51,136 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:51,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:16:51,136 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:51,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:51,137 INFO L85 PathProgramCache]: Analyzing trace with hash -619934265, now seen corresponding path program 1 times [2024-11-08 19:16:51,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:51,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115631928] [2024-11-08 19:16:51,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:51,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:53,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:16:53,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:53,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115631928] [2024-11-08 19:16:53,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115631928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:53,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:53,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:16:53,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900431616] [2024-11-08 19:16:53,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:53,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:16:53,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:53,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:16:53,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:16:53,589 INFO L87 Difference]: Start difference. First operand 8297 states and 12298 transitions. Second operand has 8 states, 8 states have (on average 34.875) internal successors, (279), 8 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:53,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:53,917 INFO L93 Difference]: Finished difference Result 15694 states and 23246 transitions. [2024-11-08 19:16:53,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:16:53,917 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.875) internal successors, (279), 8 states have internal predecessors, (279), 0 states have call successors, (0), 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 279 [2024-11-08 19:16:53,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:53,938 INFO L225 Difference]: With dead ends: 15694 [2024-11-08 19:16:53,938 INFO L226 Difference]: Without dead ends: 14581 [2024-11-08 19:16:53,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:53,945 INFO L432 NwaCegarLoop]: 1799 mSDtfsCounter, 2272 mSDsluCounter, 7191 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 8990 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:53,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 8990 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:16:53,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14581 states. [2024-11-08 19:16:54,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14581 to 14388. [2024-11-08 19:16:54,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14388 states, 14387 states have (on average 1.4798776673385696) internal successors, (21291), 14387 states have internal predecessors, (21291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:54,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14388 states to 14388 states and 21291 transitions. [2024-11-08 19:16:54,111 INFO L78 Accepts]: Start accepts. Automaton has 14388 states and 21291 transitions. Word has length 279 [2024-11-08 19:16:54,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:54,111 INFO L471 AbstractCegarLoop]: Abstraction has 14388 states and 21291 transitions. [2024-11-08 19:16:54,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.875) internal successors, (279), 8 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:54,112 INFO L276 IsEmpty]: Start isEmpty. Operand 14388 states and 21291 transitions. [2024-11-08 19:16:54,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-08 19:16:54,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:54,132 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:54,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:16:54,133 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:54,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:54,133 INFO L85 PathProgramCache]: Analyzing trace with hash -57073743, now seen corresponding path program 1 times [2024-11-08 19:16:54,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:54,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741999036] [2024-11-08 19:16:54,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:54,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:56,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:16:56,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:56,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741999036] [2024-11-08 19:16:56,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741999036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:56,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:56,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:16:56,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789557532] [2024-11-08 19:16:56,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:56,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:16:56,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:56,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:16:56,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:16:56,648 INFO L87 Difference]: Start difference. First operand 14388 states and 21291 transitions. Second operand has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:57,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:57,017 INFO L93 Difference]: Finished difference Result 28285 states and 41842 transitions. [2024-11-08 19:16:57,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:16:57,018 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 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 280 [2024-11-08 19:16:57,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:57,062 INFO L225 Difference]: With dead ends: 28285 [2024-11-08 19:16:57,062 INFO L226 Difference]: Without dead ends: 27131 [2024-11-08 19:16:57,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:57,074 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 2681 mSDsluCounter, 8988 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2681 SdHoareTripleChecker+Valid, 10789 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:57,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2681 Valid, 10789 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:16:57,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27131 states. [2024-11-08 19:16:57,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27131 to 26884. [2024-11-08 19:16:57,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26884 states, 26883 states have (on average 1.478518022542127) internal successors, (39747), 26883 states have internal predecessors, (39747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:57,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26884 states to 26884 states and 39747 transitions. [2024-11-08 19:16:57,349 INFO L78 Accepts]: Start accepts. Automaton has 26884 states and 39747 transitions. Word has length 280 [2024-11-08 19:16:57,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:57,350 INFO L471 AbstractCegarLoop]: Abstraction has 26884 states and 39747 transitions. [2024-11-08 19:16:57,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:16:57,350 INFO L276 IsEmpty]: Start isEmpty. Operand 26884 states and 39747 transitions. [2024-11-08 19:16:57,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-08 19:16:57,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:57,395 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:57,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 19:16:57,395 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:57,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:57,396 INFO L85 PathProgramCache]: Analyzing trace with hash -935249753, now seen corresponding path program 1 times [2024-11-08 19:16:57,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:57,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263261868] [2024-11-08 19:16:57,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:57,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:59,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:16:59,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:59,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263261868] [2024-11-08 19:16:59,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263261868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:59,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:59,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:16:59,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19210709] [2024-11-08 19:16:59,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:59,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:16:59,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:59,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:16:59,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:16:59,731 INFO L87 Difference]: Start difference. First operand 26884 states and 39747 transitions. Second operand has 8 states, 8 states have (on average 35.125) internal successors, (281), 8 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:17:00,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:00,180 INFO L93 Difference]: Finished difference Result 43327 states and 63833 transitions. [2024-11-08 19:17:00,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:17:00,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 35.125) internal successors, (281), 8 states have internal predecessors, (281), 0 states have call successors, (0), 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 281 [2024-11-08 19:17:00,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:00,228 INFO L225 Difference]: With dead ends: 43327 [2024-11-08 19:17:00,228 INFO L226 Difference]: Without dead ends: 42214 [2024-11-08 19:17:00,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:17:00,245 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 2733 mSDsluCounter, 8988 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 10789 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:00,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2733 Valid, 10789 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:17:00,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42214 states. [2024-11-08 19:17:00,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42214 to 42023. [2024-11-08 19:17:00,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42023 states, 42022 states have (on average 1.4725619913378707) internal successors, (61880), 42022 states have internal predecessors, (61880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:17:00,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42023 states to 42023 states and 61880 transitions. [2024-11-08 19:17:00,824 INFO L78 Accepts]: Start accepts. Automaton has 42023 states and 61880 transitions. Word has length 281 [2024-11-08 19:17:00,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:00,824 INFO L471 AbstractCegarLoop]: Abstraction has 42023 states and 61880 transitions. [2024-11-08 19:17:00,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 35.125) internal successors, (281), 8 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:17:00,825 INFO L276 IsEmpty]: Start isEmpty. Operand 42023 states and 61880 transitions. [2024-11-08 19:17:00,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-08 19:17:00,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:00,872 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:00,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 19:17:00,872 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:17:00,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:00,872 INFO L85 PathProgramCache]: Analyzing trace with hash -50966616, now seen corresponding path program 1 times [2024-11-08 19:17:00,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:00,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647832097] [2024-11-08 19:17:00,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:00,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:03,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:17:03,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:03,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647832097] [2024-11-08 19:17:03,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647832097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:17:03,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:17:03,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:17:03,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966315844] [2024-11-08 19:17:03,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:17:03,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:17:03,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:03,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:17:03,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:17:03,562 INFO L87 Difference]: Start difference. First operand 42023 states and 61880 transitions. Second operand has 8 states, 8 states have (on average 35.25) internal successors, (282), 8 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:17:04,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:04,096 INFO L93 Difference]: Finished difference Result 74630 states and 109635 transitions. [2024-11-08 19:17:04,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:17:04,097 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 35.25) internal successors, (282), 8 states have internal predecessors, (282), 0 states have call successors, (0), 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 282 [2024-11-08 19:17:04,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:04,182 INFO L225 Difference]: With dead ends: 74630 [2024-11-08 19:17:04,182 INFO L226 Difference]: Without dead ends: 73507 [2024-11-08 19:17:04,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:17:04,210 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 2267 mSDsluCounter, 7195 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2267 SdHoareTripleChecker+Valid, 8996 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:04,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2267 Valid, 8996 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:17:04,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73507 states. [2024-11-08 19:17:04,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73507 to 73301. [2024-11-08 19:17:05,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73301 states, 73300 states have (on average 1.4685675306957708) internal successors, (107646), 73300 states have internal predecessors, (107646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:17:05,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73301 states to 73301 states and 107646 transitions. [2024-11-08 19:17:05,116 INFO L78 Accepts]: Start accepts. Automaton has 73301 states and 107646 transitions. Word has length 282 [2024-11-08 19:17:05,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:05,116 INFO L471 AbstractCegarLoop]: Abstraction has 73301 states and 107646 transitions. [2024-11-08 19:17:05,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 35.25) internal successors, (282), 8 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:17:05,116 INFO L276 IsEmpty]: Start isEmpty. Operand 73301 states and 107646 transitions. [2024-11-08 19:17:05,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-08 19:17:05,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:05,211 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:05,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 19:17:05,211 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:17:05,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:05,212 INFO L85 PathProgramCache]: Analyzing trace with hash -52780526, now seen corresponding path program 1 times [2024-11-08 19:17:05,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:05,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379703377] [2024-11-08 19:17:05,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:05,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:08,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:17:08,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:08,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379703377] [2024-11-08 19:17:08,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379703377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:17:08,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:17:08,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:17:08,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840960747] [2024-11-08 19:17:08,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:17:08,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:17:08,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:08,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:17:08,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:17:08,010 INFO L87 Difference]: Start difference. First operand 73301 states and 107646 transitions. Second operand has 8 states, 8 states have (on average 35.375) internal successors, (283), 8 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:17:08,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:08,681 INFO L93 Difference]: Finished difference Result 139284 states and 204311 transitions. [2024-11-08 19:17:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:17:08,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 35.375) internal successors, (283), 8 states have internal predecessors, (283), 0 states have call successors, (0), 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 283 [2024-11-08 19:17:08,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:08,856 INFO L225 Difference]: With dead ends: 139284 [2024-11-08 19:17:08,856 INFO L226 Difference]: Without dead ends: 138093 [2024-11-08 19:17:09,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:17:09,045 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 2691 mSDsluCounter, 7194 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2691 SdHoareTripleChecker+Valid, 8995 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:09,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2691 Valid, 8995 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:17:09,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138093 states. [2024-11-08 19:17:10,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138093 to 137809. [2024-11-08 19:17:10,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137809 states, 137808 states have (on average 1.4665766864042726) internal successors, (202106), 137808 states have internal predecessors, (202106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:17:11,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137809 states to 137809 states and 202106 transitions. [2024-11-08 19:17:11,032 INFO L78 Accepts]: Start accepts. Automaton has 137809 states and 202106 transitions. Word has length 283 [2024-11-08 19:17:11,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:11,032 INFO L471 AbstractCegarLoop]: Abstraction has 137809 states and 202106 transitions. [2024-11-08 19:17:11,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 35.375) internal successors, (283), 8 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:17:11,033 INFO L276 IsEmpty]: Start isEmpty. Operand 137809 states and 202106 transitions. [2024-11-08 19:17:11,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-08 19:17:11,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:11,201 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:11,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 19:17:11,201 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:17:11,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:11,202 INFO L85 PathProgramCache]: Analyzing trace with hash -378519086, now seen corresponding path program 1 times [2024-11-08 19:17:11,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:11,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999670408] [2024-11-08 19:17:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:11,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:14,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:17:14,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:14,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999670408] [2024-11-08 19:17:14,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999670408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:17:14,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:17:14,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:17:14,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579463044] [2024-11-08 19:17:14,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:17:14,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:17:14,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:14,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:17:14,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:17:14,006 INFO L87 Difference]: Start difference. First operand 137809 states and 202106 transitions. Second operand has 8 states, 8 states have (on average 35.5) internal successors, (284), 8 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:17:15,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:15,250 INFO L93 Difference]: Finished difference Result 219109 states and 319449 transitions. [2024-11-08 19:17:15,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:17:15,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 35.5) internal successors, (284), 8 states have internal predecessors, (284), 0 states have call successors, (0), 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 284 [2024-11-08 19:17:15,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:15,529 INFO L225 Difference]: With dead ends: 219109 [2024-11-08 19:17:15,529 INFO L226 Difference]: Without dead ends: 217996 [2024-11-08 19:17:15,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:17:15,572 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 2701 mSDsluCounter, 7194 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2701 SdHoareTripleChecker+Valid, 8995 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:15,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2701 Valid, 8995 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:17:15,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217996 states. [2024-11-08 19:17:18,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217996 to 217805. [2024-11-08 19:17:18,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217805 states, 217804 states have (on average 1.4577142752199226) internal successors, (317496), 217804 states have internal predecessors, (317496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:17:19,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217805 states to 217805 states and 317496 transitions. [2024-11-08 19:17:19,075 INFO L78 Accepts]: Start accepts. Automaton has 217805 states and 317496 transitions. Word has length 284 [2024-11-08 19:17:19,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:19,079 INFO L471 AbstractCegarLoop]: Abstraction has 217805 states and 317496 transitions. [2024-11-08 19:17:19,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 35.5) internal successors, (284), 8 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:17:19,080 INFO L276 IsEmpty]: Start isEmpty. Operand 217805 states and 317496 transitions. [2024-11-08 19:17:19,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-08 19:17:19,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:19,377 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:19,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 19:17:19,378 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:17:19,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:19,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1609958287, now seen corresponding path program 1 times [2024-11-08 19:17:19,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:19,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965091830] [2024-11-08 19:17:19,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:19,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:17:22,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:22,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965091830] [2024-11-08 19:17:22,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965091830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:17:22,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:17:22,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:17:22,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852795059] [2024-11-08 19:17:22,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:17:22,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:17:22,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:22,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:17:22,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:17:22,161 INFO L87 Difference]: Start difference. First operand 217805 states and 317496 transitions. Second operand has 8 states, 8 states have (on average 35.625) internal successors, (285), 8 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:17:24,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:24,364 INFO L93 Difference]: Finished difference Result 426308 states and 621029 transitions. [2024-11-08 19:17:24,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:17:24,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 35.625) internal successors, (285), 8 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 285 [2024-11-08 19:17:24,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:25,053 INFO L225 Difference]: With dead ends: 426308 [2024-11-08 19:17:25,054 INFO L226 Difference]: Without dead ends: 425077 [2024-11-08 19:17:25,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:17:25,138 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 2260 mSDsluCounter, 8990 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2260 SdHoareTripleChecker+Valid, 10791 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:25,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2260 Valid, 10791 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:17:25,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425077 states.