./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p2.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 8026e8fad442d359c5ad25f6b8e6c64a8eb4f5fda678822051ba0bded2a5b47e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 18:18:17,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 18:18:17,868 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 18:18:17,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 18:18:17,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 18:18:17,907 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 18:18:17,908 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 18:18:17,908 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 18:18:17,909 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 18:18:17,909 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 18:18:17,910 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 18:18:17,910 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 18:18:17,911 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 18:18:17,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 18:18:17,916 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 18:18:17,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 18:18:17,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 18:18:17,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 18:18:17,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 18:18:17,918 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 18:18:17,918 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 18:18:17,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 18:18:17,920 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 18:18:17,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 18:18:17,921 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 18:18:17,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 18:18:17,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 18:18:17,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 18:18:17,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 18:18:17,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:18:17,922 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 18:18:17,922 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 18:18:17,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 18:18:17,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 18:18:17,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 18:18:17,926 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 18:18:17,926 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 18:18:17,934 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 18:18:17,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 18:18:17,934 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8026e8fad442d359c5ad25f6b8e6c64a8eb4f5fda678822051ba0bded2a5b47e [2024-11-18 18:18:18,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 18:18:18,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 18:18:18,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 18:18:18,223 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 18:18:18,224 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 18:18:18,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p2.c [2024-11-18 18:18:19,753 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 18:18:20,050 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 18:18:20,050 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p2.c [2024-11-18 18:18:20,066 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec4c21679/6b484d1332dd4b90a3a669d5c32000a5/FLAG7a97594c4 [2024-11-18 18:18:20,320 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec4c21679/6b484d1332dd4b90a3a669d5c32000a5 [2024-11-18 18:18:20,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 18:18:20,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 18:18:20,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 18:18:20,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 18:18:20,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 18:18:20,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:18:20" (1/1) ... [2024-11-18 18:18:20,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758743c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:20, skipping insertion in model container [2024-11-18 18:18:20,333 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:18:20" (1/1) ... [2024-11-18 18:18:20,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 18:18:20,614 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_two_p2.c[1257,1270] [2024-11-18 18:18:20,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:18:20,995 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 18:18:21,004 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_two_p2.c[1257,1270] [2024-11-18 18:18:21,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:18:21,236 INFO L204 MainTranslator]: Completed translation [2024-11-18 18:18:21,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21 WrapperNode [2024-11-18 18:18:21,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 18:18:21,238 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 18:18:21,238 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 18:18:21,238 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 18:18:21,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21" (1/1) ... [2024-11-18 18:18:21,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21" (1/1) ... [2024-11-18 18:18:21,783 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3697 [2024-11-18 18:18:21,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 18:18:21,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 18:18:21,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 18:18:21,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 18:18:21,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21" (1/1) ... [2024-11-18 18:18:21,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21" (1/1) ... [2024-11-18 18:18:21,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21" (1/1) ... [2024-11-18 18:18:22,040 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 18:18:22,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21" (1/1) ... [2024-11-18 18:18:22,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21" (1/1) ... [2024-11-18 18:18:22,175 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21" (1/1) ... [2024-11-18 18:18:22,210 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21" (1/1) ... [2024-11-18 18:18:22,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21" (1/1) ... [2024-11-18 18:18:22,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21" (1/1) ... [2024-11-18 18:18:22,341 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 18:18:22,343 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 18:18:22,343 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 18:18:22,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 18:18:22,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21" (1/1) ... [2024-11-18 18:18:22,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:18:22,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:18:22,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 18:18:22,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 18:18:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 18:18:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 18:18:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 18:18:22,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 18:18:22,924 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 18:18:22,926 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 18:18:26,288 INFO L? ?]: Removed 2341 outVars from TransFormulas that were not future-live. [2024-11-18 18:18:26,288 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 18:18:26,319 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 18:18:26,319 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 18:18:26,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:18:26 BoogieIcfgContainer [2024-11-18 18:18:26,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 18:18:26,326 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 18:18:26,326 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 18:18:26,330 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 18:18:26,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:18:20" (1/3) ... [2024-11-18 18:18:26,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abdb15f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:18:26, skipping insertion in model container [2024-11-18 18:18:26,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:18:21" (2/3) ... [2024-11-18 18:18:26,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abdb15f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:18:26, skipping insertion in model container [2024-11-18 18:18:26,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:18:26" (3/3) ... [2024-11-18 18:18:26,333 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_two_p2.c [2024-11-18 18:18:26,349 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 18:18:26,350 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 18:18:26,451 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 18:18:26,460 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;@798c478f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 18:18:26,461 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 18:18:26,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 1041 states, 1039 states have (on average 1.5024061597690086) internal successors, (1561), 1040 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:26,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-18 18:18:26,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:18:26,496 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] [2024-11-18 18:18:26,497 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:18:26,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:18:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash -374697008, now seen corresponding path program 1 times [2024-11-18 18:18:26,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:18:26,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921416991] [2024-11-18 18:18:26,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:18:26,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:18:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:18:28,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:18:28,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:18:28,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921416991] [2024-11-18 18:18:28,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921416991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:18:28,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:18:28,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 18:18:28,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304271308] [2024-11-18 18:18:28,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:18:28,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:18:28,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:18:28,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:18:28,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:18:28,920 INFO L87 Difference]: Start difference. First operand has 1041 states, 1039 states have (on average 1.5024061597690086) internal successors, (1561), 1040 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:29,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:18:29,063 INFO L93 Difference]: Finished difference Result 2039 states and 3061 transitions. [2024-11-18 18:18:29,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:18:29,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2024-11-18 18:18:29,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:18:29,088 INFO L225 Difference]: With dead ends: 2039 [2024-11-18 18:18:29,088 INFO L226 Difference]: Without dead ends: 1040 [2024-11-18 18:18:29,095 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 [2024-11-18 18:18:29,099 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 0 mSDsluCounter, 3104 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4659 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 [2024-11-18 18:18:29,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4659 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:18:29,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2024-11-18 18:18:29,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1040. [2024-11-18 18:18:29,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 1039 states have (on average 1.5004812319538017) internal successors, (1559), 1039 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:29,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1559 transitions. [2024-11-18 18:18:29,225 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1559 transitions. Word has length 155 [2024-11-18 18:18:29,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:18:29,225 INFO L471 AbstractCegarLoop]: Abstraction has 1040 states and 1559 transitions. [2024-11-18 18:18:29,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:29,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1559 transitions. [2024-11-18 18:18:29,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 18:18:29,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:18:29,230 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] [2024-11-18 18:18:29,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 18:18:29,231 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:18:29,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:18:29,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1270990803, now seen corresponding path program 1 times [2024-11-18 18:18:29,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:18:29,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384120744] [2024-11-18 18:18:29,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:18:29,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:18:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:18:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:18:30,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:18:30,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384120744] [2024-11-18 18:18:30,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384120744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:18:30,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:18:30,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 18:18:30,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855494434] [2024-11-18 18:18:30,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:18:30,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:18:30,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:18:30,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:18:30,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:18:30,343 INFO L87 Difference]: Start difference. First operand 1040 states and 1559 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:30,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:18:30,401 INFO L93 Difference]: Finished difference Result 2040 states and 3059 transitions. [2024-11-18 18:18:30,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:18:30,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2024-11-18 18:18:30,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:18:30,407 INFO L225 Difference]: With dead ends: 2040 [2024-11-18 18:18:30,407 INFO L226 Difference]: Without dead ends: 1042 [2024-11-18 18:18:30,409 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 [2024-11-18 18:18:30,410 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 0 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4655 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 [2024-11-18 18:18:30,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4655 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:18:30,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2024-11-18 18:18:30,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2024-11-18 18:18:30,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 1041 states have (on average 1.4995196926032661) internal successors, (1561), 1041 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:30,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1561 transitions. [2024-11-18 18:18:30,432 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1561 transitions. Word has length 156 [2024-11-18 18:18:30,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:18:30,433 INFO L471 AbstractCegarLoop]: Abstraction has 1042 states and 1561 transitions. [2024-11-18 18:18:30,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:30,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1561 transitions. [2024-11-18 18:18:30,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-18 18:18:30,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:18:30,436 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] [2024-11-18 18:18:30,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 18:18:30,436 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:18:30,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:18:30,437 INFO L85 PathProgramCache]: Analyzing trace with hash -351955703, now seen corresponding path program 1 times [2024-11-18 18:18:30,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:18:30,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232875311] [2024-11-18 18:18:30,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:18:30,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:18:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:18:38,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:18:38,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:18:38,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232875311] [2024-11-18 18:18:38,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232875311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:18:38,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:18:38,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:18:38,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622258826] [2024-11-18 18:18:38,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:18:38,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:18:38,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:18:38,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:18:38,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:18:38,144 INFO L87 Difference]: Start difference. First operand 1042 states and 1561 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:38,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:18:38,887 INFO L93 Difference]: Finished difference Result 2802 states and 4199 transitions. [2024-11-18 18:18:38,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:18:38,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2024-11-18 18:18:38,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:18:38,895 INFO L225 Difference]: With dead ends: 2802 [2024-11-18 18:18:38,895 INFO L226 Difference]: Without dead ends: 1802 [2024-11-18 18:18:38,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:18:38,898 INFO L432 NwaCegarLoop]: 1388 mSDtfsCounter, 1107 mSDsluCounter, 4147 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 5535 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 18:18:38,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 5535 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 18:18:38,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2024-11-18 18:18:38,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1183. [2024-11-18 18:18:38,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.5) internal successors, (1773), 1182 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:38,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1773 transitions. [2024-11-18 18:18:38,928 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1773 transitions. Word has length 157 [2024-11-18 18:18:38,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:18:38,929 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1773 transitions. [2024-11-18 18:18:38,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:38,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1773 transitions. [2024-11-18 18:18:38,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-18 18:18:38,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:18:38,931 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] [2024-11-18 18:18:38,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 18:18:38,931 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:18:38,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:18:38,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1848655630, now seen corresponding path program 1 times [2024-11-18 18:18:38,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:18:38,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414067780] [2024-11-18 18:18:38,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:18:38,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:18:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:18:43,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:18:43,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:18:43,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414067780] [2024-11-18 18:18:43,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414067780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:18:43,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:18:43,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:18:43,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355858607] [2024-11-18 18:18:43,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:18:43,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:18:43,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:18:43,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:18:43,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:18:43,924 INFO L87 Difference]: Start difference. First operand 1183 states and 1773 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:44,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:18:44,662 INFO L93 Difference]: Finished difference Result 2802 states and 4198 transitions. [2024-11-18 18:18:44,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:18:44,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2024-11-18 18:18:44,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:18:44,670 INFO L225 Difference]: With dead ends: 2802 [2024-11-18 18:18:44,671 INFO L226 Difference]: Without dead ends: 1802 [2024-11-18 18:18:44,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:18:44,677 INFO L432 NwaCegarLoop]: 1389 mSDtfsCounter, 1105 mSDsluCounter, 4147 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 5536 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 18:18:44,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 5536 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 18:18:44,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2024-11-18 18:18:44,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1184. [2024-11-18 18:18:44,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 1183 states have (on average 1.4995773457311918) internal successors, (1774), 1183 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:44,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1774 transitions. [2024-11-18 18:18:44,715 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1774 transitions. Word has length 158 [2024-11-18 18:18:44,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:18:44,716 INFO L471 AbstractCegarLoop]: Abstraction has 1184 states and 1774 transitions. [2024-11-18 18:18:44,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:44,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1774 transitions. [2024-11-18 18:18:44,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-18 18:18:44,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:18:44,719 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] [2024-11-18 18:18:44,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 18:18:44,719 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:18:44,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:18:44,720 INFO L85 PathProgramCache]: Analyzing trace with hash 47819398, now seen corresponding path program 1 times [2024-11-18 18:18:44,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:18:44,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106936230] [2024-11-18 18:18:44,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:18:44,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:18:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:18:49,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:18:49,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:18:49,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106936230] [2024-11-18 18:18:49,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106936230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:18:49,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:18:49,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:18:49,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701075485] [2024-11-18 18:18:49,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:18:49,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:18:49,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:18:49,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:18:49,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:18:49,315 INFO L87 Difference]: Start difference. First operand 1184 states and 1774 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:50,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:18:50,053 INFO L93 Difference]: Finished difference Result 2995 states and 4487 transitions. [2024-11-18 18:18:50,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 18:18:50,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2024-11-18 18:18:50,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:18:50,064 INFO L225 Difference]: With dead ends: 2995 [2024-11-18 18:18:50,064 INFO L226 Difference]: Without dead ends: 1995 [2024-11-18 18:18:50,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:18:50,068 INFO L432 NwaCegarLoop]: 1615 mSDtfsCounter, 1365 mSDsluCounter, 6001 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 7616 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 18:18:50,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 7616 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 18:18:50,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2024-11-18 18:18:50,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1204. [2024-11-18 18:18:50,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 1203 states have (on average 1.4987531172069826) internal successors, (1803), 1203 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:50,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1803 transitions. [2024-11-18 18:18:50,104 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1803 transitions. Word has length 159 [2024-11-18 18:18:50,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:18:50,105 INFO L471 AbstractCegarLoop]: Abstraction has 1204 states and 1803 transitions. [2024-11-18 18:18:50,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:50,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1803 transitions. [2024-11-18 18:18:50,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-18 18:18:50,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:18:50,108 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] [2024-11-18 18:18:50,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 18:18:50,108 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:18:50,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:18:50,109 INFO L85 PathProgramCache]: Analyzing trace with hash -275717235, now seen corresponding path program 1 times [2024-11-18 18:18:50,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:18:50,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100553836] [2024-11-18 18:18:50,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:18:50,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:18:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:18:54,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:18:54,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:18:54,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100553836] [2024-11-18 18:18:54,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100553836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:18:54,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:18:54,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:18:54,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604093986] [2024-11-18 18:18:54,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:18:54,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:18:54,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:18:54,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:18:54,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:18:54,670 INFO L87 Difference]: Start difference. First operand 1204 states and 1803 transitions. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:55,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:18:55,141 INFO L93 Difference]: Finished difference Result 2741 states and 4104 transitions. [2024-11-18 18:18:55,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 18:18:55,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-18 18:18:55,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:18:55,148 INFO L225 Difference]: With dead ends: 2741 [2024-11-18 18:18:55,148 INFO L226 Difference]: Without dead ends: 1498 [2024-11-18 18:18:55,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:18:55,151 INFO L432 NwaCegarLoop]: 1516 mSDtfsCounter, 3299 mSDsluCounter, 4433 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3299 SdHoareTripleChecker+Valid, 5949 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 18:18:55,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3299 Valid, 5949 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 18:18:55,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2024-11-18 18:18:55,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1204. [2024-11-18 18:18:55,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 1203 states have (on average 1.4979218620116377) internal successors, (1802), 1203 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:55,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1802 transitions. [2024-11-18 18:18:55,181 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1802 transitions. Word has length 160 [2024-11-18 18:18:55,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:18:55,182 INFO L471 AbstractCegarLoop]: Abstraction has 1204 states and 1802 transitions. [2024-11-18 18:18:55,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:55,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1802 transitions. [2024-11-18 18:18:55,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-18 18:18:55,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:18:55,189 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] [2024-11-18 18:18:55,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 18:18:55,189 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:18:55,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:18:55,189 INFO L85 PathProgramCache]: Analyzing trace with hash -610417796, now seen corresponding path program 1 times [2024-11-18 18:18:55,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:18:55,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788025382] [2024-11-18 18:18:55,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:18:55,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:18:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:18:58,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:18:58,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:18:58,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788025382] [2024-11-18 18:18:58,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788025382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:18:58,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:18:58,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:18:58,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235951316] [2024-11-18 18:18:58,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:18:58,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:18:58,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:18:58,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:18:58,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:18:58,945 INFO L87 Difference]: Start difference. First operand 1204 states and 1802 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:59,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:18:59,631 INFO L93 Difference]: Finished difference Result 2874 states and 4303 transitions. [2024-11-18 18:18:59,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:18:59,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2024-11-18 18:18:59,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:18:59,639 INFO L225 Difference]: With dead ends: 2874 [2024-11-18 18:18:59,639 INFO L226 Difference]: Without dead ends: 1874 [2024-11-18 18:18:59,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:18:59,642 INFO L432 NwaCegarLoop]: 1392 mSDtfsCounter, 1197 mSDsluCounter, 4147 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 5539 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 18:18:59,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 5539 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 18:18:59,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2024-11-18 18:18:59,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1205. [2024-11-18 18:18:59,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 1204 states have (on average 1.4975083056478404) internal successors, (1803), 1204 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:59,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1803 transitions. [2024-11-18 18:18:59,668 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1803 transitions. Word has length 161 [2024-11-18 18:18:59,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:18:59,668 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 1803 transitions. [2024-11-18 18:18:59,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:18:59,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1803 transitions. [2024-11-18 18:18:59,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-18 18:18:59,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:18:59,671 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] [2024-11-18 18:18:59,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 18:18:59,671 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:18:59,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:18:59,672 INFO L85 PathProgramCache]: Analyzing trace with hash 854778356, now seen corresponding path program 1 times [2024-11-18 18:18:59,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:18:59,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128248205] [2024-11-18 18:18:59,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:18:59,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:03,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:03,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:03,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128248205] [2024-11-18 18:19:03,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128248205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:03,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:03,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:19:03,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887987440] [2024-11-18 18:19:03,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:03,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:19:03,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:03,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:19:03,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:19:03,226 INFO L87 Difference]: Start difference. First operand 1205 states and 1803 transitions. Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:03,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:03,832 INFO L93 Difference]: Finished difference Result 2711 states and 4055 transitions. [2024-11-18 18:19:03,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 18:19:03,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2024-11-18 18:19:03,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:03,838 INFO L225 Difference]: With dead ends: 2711 [2024-11-18 18:19:03,838 INFO L226 Difference]: Without dead ends: 1580 [2024-11-18 18:19:03,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:19:03,840 INFO L432 NwaCegarLoop]: 1462 mSDtfsCounter, 819 mSDsluCounter, 5704 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 7166 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:03,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 7166 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 18:19:03,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2024-11-18 18:19:03,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1205. [2024-11-18 18:19:03,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 1204 states have (on average 1.4966777408637875) internal successors, (1802), 1204 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:03,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1802 transitions. [2024-11-18 18:19:03,864 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1802 transitions. Word has length 162 [2024-11-18 18:19:03,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:03,864 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 1802 transitions. [2024-11-18 18:19:03,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:03,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1802 transitions. [2024-11-18 18:19:03,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 18:19:03,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:03,867 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] [2024-11-18 18:19:03,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 18:19:03,867 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:03,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:03,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1997244551, now seen corresponding path program 1 times [2024-11-18 18:19:03,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:03,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545121879] [2024-11-18 18:19:03,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:03,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:05,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:05,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:05,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545121879] [2024-11-18 18:19:05,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545121879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:05,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:05,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:19:05,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41155409] [2024-11-18 18:19:05,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:05,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:19:05,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:05,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:19:05,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:19:05,881 INFO L87 Difference]: Start difference. First operand 1205 states and 1802 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:06,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:06,232 INFO L93 Difference]: Finished difference Result 2356 states and 3525 transitions. [2024-11-18 18:19:06,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:19:06,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2024-11-18 18:19:06,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:06,239 INFO L225 Difference]: With dead ends: 2356 [2024-11-18 18:19:06,240 INFO L226 Difference]: Without dead ends: 1213 [2024-11-18 18:19:06,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:19:06,242 INFO L432 NwaCegarLoop]: 1398 mSDtfsCounter, 1534 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 4191 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:06,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 4191 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 18:19:06,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2024-11-18 18:19:06,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1209. [2024-11-18 18:19:06,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1208 states have (on average 1.4950331125827814) internal successors, (1806), 1208 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:06,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1806 transitions. [2024-11-18 18:19:06,262 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1806 transitions. Word has length 163 [2024-11-18 18:19:06,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:06,263 INFO L471 AbstractCegarLoop]: Abstraction has 1209 states and 1806 transitions. [2024-11-18 18:19:06,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:06,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1806 transitions. [2024-11-18 18:19:06,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-18 18:19:06,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:06,265 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] [2024-11-18 18:19:06,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 18:19:06,265 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:06,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:06,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1437899551, now seen corresponding path program 1 times [2024-11-18 18:19:06,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:06,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597857930] [2024-11-18 18:19:06,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:06,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:09,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:09,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597857930] [2024-11-18 18:19:09,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597857930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:09,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:09,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:19:09,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990808626] [2024-11-18 18:19:09,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:09,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:19:09,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:09,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:19:09,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:19:09,894 INFO L87 Difference]: Start difference. First operand 1209 states and 1806 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:10,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:10,485 INFO L93 Difference]: Finished difference Result 2818 states and 4213 transitions. [2024-11-18 18:19:10,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 18:19:10,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2024-11-18 18:19:10,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:10,492 INFO L225 Difference]: With dead ends: 2818 [2024-11-18 18:19:10,492 INFO L226 Difference]: Without dead ends: 1816 [2024-11-18 18:19:10,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:19:10,495 INFO L432 NwaCegarLoop]: 1459 mSDtfsCounter, 1075 mSDsluCounter, 5692 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 7151 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:10,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 7151 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 18:19:10,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2024-11-18 18:19:10,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1253. [2024-11-18 18:19:10,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1252 states have (on average 1.494408945686901) internal successors, (1871), 1252 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:10,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1871 transitions. [2024-11-18 18:19:10,519 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1871 transitions. Word has length 164 [2024-11-18 18:19:10,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:10,519 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 1871 transitions. [2024-11-18 18:19:10,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:10,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1871 transitions. [2024-11-18 18:19:10,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-18 18:19:10,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:10,521 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] [2024-11-18 18:19:10,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 18:19:10,522 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:10,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:10,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2071498850, now seen corresponding path program 1 times [2024-11-18 18:19:10,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:10,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352175703] [2024-11-18 18:19:10,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:10,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:13,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:13,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:13,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352175703] [2024-11-18 18:19:13,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352175703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:13,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:13,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:19:13,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894580686] [2024-11-18 18:19:13,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:13,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:19:13,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:13,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:19:13,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:19:13,900 INFO L87 Difference]: Start difference. First operand 1253 states and 1871 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:14,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:14,381 INFO L93 Difference]: Finished difference Result 2751 states and 4110 transitions. [2024-11-18 18:19:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:19:14,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2024-11-18 18:19:14,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:14,387 INFO L225 Difference]: With dead ends: 2751 [2024-11-18 18:19:14,387 INFO L226 Difference]: Without dead ends: 1574 [2024-11-18 18:19:14,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:19:14,389 INFO L432 NwaCegarLoop]: 1399 mSDtfsCounter, 803 mSDsluCounter, 4151 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 5550 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:14,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 5550 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 18:19:14,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2024-11-18 18:19:14,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1253. [2024-11-18 18:19:14,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1252 states have (on average 1.4936102236421724) internal successors, (1870), 1252 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:14,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1870 transitions. [2024-11-18 18:19:14,413 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1870 transitions. Word has length 165 [2024-11-18 18:19:14,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:14,414 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 1870 transitions. [2024-11-18 18:19:14,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:14,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1870 transitions. [2024-11-18 18:19:14,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 18:19:14,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:14,416 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] [2024-11-18 18:19:14,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 18:19:14,416 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:14,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:14,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1057666024, now seen corresponding path program 1 times [2024-11-18 18:19:14,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:14,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643769347] [2024-11-18 18:19:14,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:14,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:17,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:17,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:17,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643769347] [2024-11-18 18:19:17,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643769347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:17,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:17,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:19:17,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909353058] [2024-11-18 18:19:17,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:17,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:19:17,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:17,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:19:17,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:19:17,746 INFO L87 Difference]: Start difference. First operand 1253 states and 1870 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:18,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:18,208 INFO L93 Difference]: Finished difference Result 2960 states and 4425 transitions. [2024-11-18 18:19:18,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:19:18,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-18 18:19:18,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:18,215 INFO L225 Difference]: With dead ends: 2960 [2024-11-18 18:19:18,215 INFO L226 Difference]: Without dead ends: 1958 [2024-11-18 18:19:18,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:19:18,218 INFO L432 NwaCegarLoop]: 1396 mSDtfsCounter, 1286 mSDsluCounter, 4147 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 5543 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:18,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 5543 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 18:19:18,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2024-11-18 18:19:18,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1254. [2024-11-18 18:19:18,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1253 states have (on average 1.493216280925778) internal successors, (1871), 1253 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:18,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1871 transitions. [2024-11-18 18:19:18,242 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1871 transitions. Word has length 166 [2024-11-18 18:19:18,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:18,242 INFO L471 AbstractCegarLoop]: Abstraction has 1254 states and 1871 transitions. [2024-11-18 18:19:18,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:18,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1871 transitions. [2024-11-18 18:19:18,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 18:19:18,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:18,244 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] [2024-11-18 18:19:18,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 18:19:18,245 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:18,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:18,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1950670102, now seen corresponding path program 1 times [2024-11-18 18:19:18,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:18,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822962520] [2024-11-18 18:19:18,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:18,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:21,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:21,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:21,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822962520] [2024-11-18 18:19:21,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822962520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:21,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:21,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:19:21,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881106808] [2024-11-18 18:19:21,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:21,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:19:21,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:21,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:19:21,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:19:21,119 INFO L87 Difference]: Start difference. First operand 1254 states and 1871 transitions. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:21,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:21,471 INFO L93 Difference]: Finished difference Result 2448 states and 3655 transitions. [2024-11-18 18:19:21,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 18:19:21,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-11-18 18:19:21,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:21,476 INFO L225 Difference]: With dead ends: 2448 [2024-11-18 18:19:21,476 INFO L226 Difference]: Without dead ends: 1262 [2024-11-18 18:19:21,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:19:21,479 INFO L432 NwaCegarLoop]: 1451 mSDtfsCounter, 1534 mSDsluCounter, 4349 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 5800 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:21,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 5800 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 18:19:21,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2024-11-18 18:19:21,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1258. [2024-11-18 18:19:21,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 1.4916467780429594) internal successors, (1875), 1257 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:21,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 1875 transitions. [2024-11-18 18:19:21,528 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 1875 transitions. Word has length 167 [2024-11-18 18:19:21,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:21,528 INFO L471 AbstractCegarLoop]: Abstraction has 1258 states and 1875 transitions. [2024-11-18 18:19:21,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:21,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 1875 transitions. [2024-11-18 18:19:21,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 18:19:21,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:21,530 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] [2024-11-18 18:19:21,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 18:19:21,531 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:21,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:21,531 INFO L85 PathProgramCache]: Analyzing trace with hash -2146320902, now seen corresponding path program 1 times [2024-11-18 18:19:21,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:21,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810392106] [2024-11-18 18:19:21,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:21,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms