./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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.cache_coherence_two.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 56b29f9d5660210a85c24688e6471450833c85f52fe4e28968dbf3dd7aaa100e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 01:28:27,926 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 01:28:28,010 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 01:28:28,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 01:28:28,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 01:28:28,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 01:28:28,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 01:28:28,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 01:28:28,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 01:28:28,052 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 01:28:28,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 01:28:28,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 01:28:28,054 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 01:28:28,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 01:28:28,056 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 01:28:28,056 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 01:28:28,056 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 01:28:28,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 01:28:28,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 01:28:28,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 01:28:28,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 01:28:28,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 01:28:28,061 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 01:28:28,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 01:28:28,062 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 01:28:28,062 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 01:28:28,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 01:28:28,063 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 01:28:28,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 01:28:28,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:28:28,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 01:28:28,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 01:28:28,064 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 01:28:28,065 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 01:28:28,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 01:28:28,065 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 01:28:28,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 01:28:28,066 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 01:28:28,066 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 01:28:28,066 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56b29f9d5660210a85c24688e6471450833c85f52fe4e28968dbf3dd7aaa100e [2024-11-10 01:28:28,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 01:28:28,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 01:28:28,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 01:28:28,357 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 01:28:28,358 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 01:28:28,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c [2024-11-10 01:28:29,836 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 01:28:30,204 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 01:28:30,204 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c [2024-11-10 01:28:30,230 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d9fa91cc/59c2b29ef00a41c3b3d4398d9b143894/FLAGe1f7ec8a4 [2024-11-10 01:28:30,247 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d9fa91cc/59c2b29ef00a41c3b3d4398d9b143894 [2024-11-10 01:28:30,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 01:28:30,253 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 01:28:30,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 01:28:30,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 01:28:30,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 01:28:30,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:28:30" (1/1) ... [2024-11-10 01:28:30,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bedd63c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:30, skipping insertion in model container [2024-11-10 01:28:30,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:28:30" (1/1) ... [2024-11-10 01:28:30,328 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 01:28:30,567 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.cache_coherence_two.c[1259,1272] [2024-11-10 01:28:30,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:28:30,994 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 01:28:31,008 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.cache_coherence_two.c[1259,1272] [2024-11-10 01:28:31,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:28:31,223 INFO L204 MainTranslator]: Completed translation [2024-11-10 01:28:31,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31 WrapperNode [2024-11-10 01:28:31,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 01:28:31,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 01:28:31,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 01:28:31,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 01:28:31,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31" (1/1) ... [2024-11-10 01:28:31,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31" (1/1) ... [2024-11-10 01:28:31,846 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3827 [2024-11-10 01:28:31,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 01:28:31,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 01:28:31,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 01:28:31,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 01:28:31,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31" (1/1) ... [2024-11-10 01:28:31,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31" (1/1) ... [2024-11-10 01:28:32,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31" (1/1) ... [2024-11-10 01:28:32,171 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]. [2024-11-10 01:28:32,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31" (1/1) ... [2024-11-10 01:28:32,172 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31" (1/1) ... [2024-11-10 01:28:32,327 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31" (1/1) ... [2024-11-10 01:28:32,341 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31" (1/1) ... [2024-11-10 01:28:32,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31" (1/1) ... [2024-11-10 01:28:32,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31" (1/1) ... [2024-11-10 01:28:32,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 01:28:32,436 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 01:28:32,436 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 01:28:32,436 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 01:28:32,437 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31" (1/1) ... [2024-11-10 01:28:32,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:28:32,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:28:32,466 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) [2024-11-10 01:28:32,512 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 [2024-11-10 01:28:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 01:28:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 01:28:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 01:28:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 01:28:32,918 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 01:28:32,920 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 01:28:36,774 INFO L? ?]: Removed 2503 outVars from TransFormulas that were not future-live. [2024-11-10 01:28:36,774 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 01:28:36,955 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 01:28:36,956 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 01:28:36,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:28:36 BoogieIcfgContainer [2024-11-10 01:28:36,957 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 01:28:36,959 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 01:28:36,959 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 01:28:36,962 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 01:28:36,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:28:30" (1/3) ... [2024-11-10 01:28:36,963 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268f72f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:28:36, skipping insertion in model container [2024-11-10 01:28:36,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:31" (2/3) ... [2024-11-10 01:28:36,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268f72f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:28:36, skipping insertion in model container [2024-11-10 01:28:36,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:28:36" (3/3) ... [2024-11-10 01:28:36,965 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cache_coherence_two.c [2024-11-10 01:28:36,992 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 01:28:36,995 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 01:28:37,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 01:28:37,096 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;@7e7a5182, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 01:28:37,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 01:28:37,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 929 states, 927 states have (on average 1.4973031283710896) internal successors, (1388), 928 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:37,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-10 01:28:37,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:28:37,122 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] [2024-11-10 01:28:37,122 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:28:37,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:28:37,127 INFO L85 PathProgramCache]: Analyzing trace with hash -196250, now seen corresponding path program 1 times [2024-11-10 01:28:37,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:28:37,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774807075] [2024-11-10 01:28:37,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:28:37,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:28:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:28:39,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:28:39,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:28:39,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774807075] [2024-11-10 01:28:39,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774807075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:28:39,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:28:39,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 01:28:39,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805553601] [2024-11-10 01:28:39,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:28:39,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:28:39,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:28:39,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:28:39,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:28:39,072 INFO L87 Difference]: Start difference. First operand has 929 states, 927 states have (on average 1.4973031283710896) internal successors, (1388), 928 states have internal predecessors, (1388), 0 states have call successors, (0), 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 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) [2024-11-10 01:28:40,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:28:40,093 INFO L93 Difference]: Finished difference Result 1981 states and 2964 transitions. [2024-11-10 01:28:40,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 01:28:40,098 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 [2024-11-10 01:28:40,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:28:40,113 INFO L225 Difference]: With dead ends: 1981 [2024-11-10 01:28:40,114 INFO L226 Difference]: Without dead ends: 1170 [2024-11-10 01:28:40,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:28:40,123 INFO L432 NwaCegarLoop]: 1130 mSDtfsCounter, 2022 mSDsluCounter, 2259 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 3389 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 01:28:40,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 3389 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 01:28:40,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2024-11-10 01:28:40,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 987. [2024-11-10 01:28:40,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 986 states have (on average 1.4959432048681542) internal successors, (1475), 986 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:40,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1475 transitions. [2024-11-10 01:28:40,213 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1475 transitions. Word has length 158 [2024-11-10 01:28:40,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:28:40,214 INFO L471 AbstractCegarLoop]: Abstraction has 987 states and 1475 transitions. [2024-11-10 01:28:40,215 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) [2024-11-10 01:28:40,215 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1475 transitions. [2024-11-10 01:28:40,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-10 01:28:40,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:28:40,221 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] [2024-11-10 01:28:40,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 01:28:40,222 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:28:40,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:28:40,223 INFO L85 PathProgramCache]: Analyzing trace with hash 475458786, now seen corresponding path program 1 times [2024-11-10 01:28:40,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:28:40,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493456554] [2024-11-10 01:28:40,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:28:40,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:28:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:28:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:28:40,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:28:40,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493456554] [2024-11-10 01:28:40,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493456554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:28:40,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:28:40,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 01:28:40,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821553028] [2024-11-10 01:28:40,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:28:40,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:28:40,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:28:40,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:28:40,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 01:28:40,941 INFO L87 Difference]: Start difference. First operand 987 states and 1475 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 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) [2024-11-10 01:28:41,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:28:41,423 INFO L93 Difference]: Finished difference Result 992 states and 1480 transitions. [2024-11-10 01:28:41,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:28:41,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 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 [2024-11-10 01:28:41,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:28:41,431 INFO L225 Difference]: With dead ends: 992 [2024-11-10 01:28:41,431 INFO L226 Difference]: Without dead ends: 989 [2024-11-10 01:28:41,432 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 [2024-11-10 01:28:41,436 INFO L432 NwaCegarLoop]: 1151 mSDtfsCounter, 0 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 01:28:41,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3448 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 01:28:41,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2024-11-10 01:28:41,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 989. [2024-11-10 01:28:41,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 988 states have (on average 1.4949392712550607) internal successors, (1477), 988 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:41,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1477 transitions. [2024-11-10 01:28:41,466 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1477 transitions. Word has length 160 [2024-11-10 01:28:41,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:28:41,469 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1477 transitions. [2024-11-10 01:28:41,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 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) [2024-11-10 01:28:41,469 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1477 transitions. [2024-11-10 01:28:41,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-10 01:28:41,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:28:41,472 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] [2024-11-10 01:28:41,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 01:28:41,473 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:28:41,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:28:41,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1999374926, now seen corresponding path program 1 times [2024-11-10 01:28:41,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:28:41,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906911819] [2024-11-10 01:28:41,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:28:41,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:28:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:28:41,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:28:41,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:28:41,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906911819] [2024-11-10 01:28:41,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906911819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:28:41,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:28:41,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 01:28:41,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108856580] [2024-11-10 01:28:41,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:28:41,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:28:41,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:28:41,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:28:41,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 01:28:41,997 INFO L87 Difference]: Start difference. First operand 989 states and 1477 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 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) [2024-11-10 01:28:42,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:28:42,464 INFO L93 Difference]: Finished difference Result 1799 states and 2688 transitions. [2024-11-10 01:28:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:28:42,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 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 [2024-11-10 01:28:42,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:28:42,469 INFO L225 Difference]: With dead ends: 1799 [2024-11-10 01:28:42,470 INFO L226 Difference]: Without dead ends: 991 [2024-11-10 01:28:42,471 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 [2024-11-10 01:28:42,473 INFO L432 NwaCegarLoop]: 1151 mSDtfsCounter, 0 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3445 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 01:28:42,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3445 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 01:28:42,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2024-11-10 01:28:42,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 991. [2024-11-10 01:28:42,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 990 states have (on average 1.493939393939394) internal successors, (1479), 990 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:42,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1479 transitions. [2024-11-10 01:28:42,502 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1479 transitions. Word has length 161 [2024-11-10 01:28:42,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:28:42,504 INFO L471 AbstractCegarLoop]: Abstraction has 991 states and 1479 transitions. [2024-11-10 01:28:42,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 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) [2024-11-10 01:28:42,504 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1479 transitions. [2024-11-10 01:28:42,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-10 01:28:42,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:28:42,506 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] [2024-11-10 01:28:42,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 01:28:42,506 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:28:42,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:28:42,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1598325191, now seen corresponding path program 1 times [2024-11-10 01:28:42,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:28:42,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764942308] [2024-11-10 01:28:42,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:28:42,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:28:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:28:43,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:28:43,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:28:43,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764942308] [2024-11-10 01:28:43,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764942308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:28:43,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:28:43,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 01:28:43,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192858810] [2024-11-10 01:28:43,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:28:43,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 01:28:43,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:28:43,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 01:28:43,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:28:43,716 INFO L87 Difference]: Start difference. First operand 991 states and 1479 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) [2024-11-10 01:28:44,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:28:44,411 INFO L93 Difference]: Finished difference Result 1893 states and 2827 transitions. [2024-11-10 01:28:44,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:28:44,412 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 [2024-11-10 01:28:44,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:28:44,417 INFO L225 Difference]: With dead ends: 1893 [2024-11-10 01:28:44,418 INFO L226 Difference]: Without dead ends: 1083 [2024-11-10 01:28:44,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:28:44,420 INFO L432 NwaCegarLoop]: 1149 mSDtfsCounter, 89 mSDsluCounter, 3545 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 4694 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 01:28:44,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 4694 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 01:28:44,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2024-11-10 01:28:44,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1080. [2024-11-10 01:28:44,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1079 states have (on average 1.4930491195551436) internal successors, (1611), 1079 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:44,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1611 transitions. [2024-11-10 01:28:44,446 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1611 transitions. Word has length 162 [2024-11-10 01:28:44,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:28:44,447 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1611 transitions. [2024-11-10 01:28:44,447 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) [2024-11-10 01:28:44,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1611 transitions. [2024-11-10 01:28:44,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-10 01:28:44,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:28:44,449 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] [2024-11-10 01:28:44,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 01:28:44,450 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:28:44,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:28:44,451 INFO L85 PathProgramCache]: Analyzing trace with hash -475427932, now seen corresponding path program 1 times [2024-11-10 01:28:44,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:28:44,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304770992] [2024-11-10 01:28:44,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:28:44,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:28:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:28:45,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:28:45,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:28:45,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304770992] [2024-11-10 01:28:45,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304770992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:28:45,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:28:45,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 01:28:45,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172696436] [2024-11-10 01:28:45,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:28:45,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:28:45,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:28:45,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:28:45,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:28:45,604 INFO L87 Difference]: Start difference. First operand 1080 states and 1611 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) [2024-11-10 01:28:46,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:28:46,342 INFO L93 Difference]: Finished difference Result 2363 states and 3522 transitions. [2024-11-10 01:28:46,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 01:28:46,343 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 [2024-11-10 01:28:46,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:28:46,350 INFO L225 Difference]: With dead ends: 2363 [2024-11-10 01:28:46,350 INFO L226 Difference]: Without dead ends: 1464 [2024-11-10 01:28:46,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:28:46,353 INFO L432 NwaCegarLoop]: 1130 mSDtfsCounter, 2292 mSDsluCounter, 2259 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2292 SdHoareTripleChecker+Valid, 3389 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 01:28:46,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2292 Valid, 3389 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 01:28:46,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2024-11-10 01:28:46,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1251. [2024-11-10 01:28:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 1250 states have (on average 1.4912) internal successors, (1864), 1250 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:46,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1864 transitions. [2024-11-10 01:28:46,383 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1864 transitions. Word has length 163 [2024-11-10 01:28:46,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:28:46,383 INFO L471 AbstractCegarLoop]: Abstraction has 1251 states and 1864 transitions. [2024-11-10 01:28:46,384 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) [2024-11-10 01:28:46,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1864 transitions. [2024-11-10 01:28:46,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-10 01:28:46,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:28:46,386 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] [2024-11-10 01:28:46,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 01:28:46,387 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:28:46,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:28:46,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1962112097, now seen corresponding path program 1 times [2024-11-10 01:28:46,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:28:46,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288932748] [2024-11-10 01:28:46,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:28:46,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:28:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:28:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:28:47,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:28:47,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288932748] [2024-11-10 01:28:47,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288932748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:28:47,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:28:47,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 01:28:47,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176353761] [2024-11-10 01:28:47,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:28:47,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:28:47,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:28:47,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:28:47,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:28:47,144 INFO L87 Difference]: Start difference. First operand 1251 states and 1864 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) [2024-11-10 01:28:48,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:28:48,150 INFO L93 Difference]: Finished difference Result 2154 states and 3212 transitions. [2024-11-10 01:28:48,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 01:28:48,150 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 [2024-11-10 01:28:48,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:28:48,155 INFO L225 Difference]: With dead ends: 2154 [2024-11-10 01:28:48,155 INFO L226 Difference]: Without dead ends: 1255 [2024-11-10 01:28:48,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:28:48,157 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 1232 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 3397 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:28:48,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 3397 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 01:28:48,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-11-10 01:28:48,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1254. [2024-11-10 01:28:48,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1253 states have (on average 1.490023942537909) internal successors, (1867), 1253 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:48,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1867 transitions. [2024-11-10 01:28:48,182 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1867 transitions. Word has length 165 [2024-11-10 01:28:48,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:28:48,182 INFO L471 AbstractCegarLoop]: Abstraction has 1254 states and 1867 transitions. [2024-11-10 01:28:48,185 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) [2024-11-10 01:28:48,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1867 transitions. [2024-11-10 01:28:48,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-10 01:28:48,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:28:48,187 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] [2024-11-10 01:28:48,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 01:28:48,187 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:28:48,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:28:48,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1389573599, now seen corresponding path program 1 times [2024-11-10 01:28:48,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:28:48,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446352790] [2024-11-10 01:28:48,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:28:48,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:28:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:28:49,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:28:49,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:28:49,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446352790] [2024-11-10 01:28:49,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446352790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:28:49,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:28:49,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 01:28:49,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216309225] [2024-11-10 01:28:49,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:28:49,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:28:49,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:28:49,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:28:49,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 01:28:49,104 INFO L87 Difference]: Start difference. First operand 1254 states and 1867 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 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) [2024-11-10 01:28:49,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:28:49,633 INFO L93 Difference]: Finished difference Result 2378 states and 3540 transitions. [2024-11-10 01:28:49,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:28:49,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 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 [2024-11-10 01:28:49,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:28:49,638 INFO L225 Difference]: With dead ends: 2378 [2024-11-10 01:28:49,639 INFO L226 Difference]: Without dead ends: 1254 [2024-11-10 01:28:49,641 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 [2024-11-10 01:28:49,644 INFO L432 NwaCegarLoop]: 1148 mSDtfsCounter, 6 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3435 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:28:49,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3435 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 01:28:49,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2024-11-10 01:28:49,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1254. [2024-11-10 01:28:49,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1253 states have (on average 1.4884277733439744) internal successors, (1865), 1253 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:49,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1865 transitions. [2024-11-10 01:28:49,671 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1865 transitions. Word has length 166 [2024-11-10 01:28:49,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:28:49,672 INFO L471 AbstractCegarLoop]: Abstraction has 1254 states and 1865 transitions. [2024-11-10 01:28:49,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 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) [2024-11-10 01:28:49,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1865 transitions. [2024-11-10 01:28:49,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-10 01:28:49,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:28:49,674 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:28:49,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 01:28:49,674 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:28:49,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:28:49,675 INFO L85 PathProgramCache]: Analyzing trace with hash -2078816153, now seen corresponding path program 1 times [2024-11-10 01:28:49,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:28:49,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344507439] [2024-11-10 01:28:49,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:28:49,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:28:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:28:50,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:28:50,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:28:50,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344507439] [2024-11-10 01:28:50,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344507439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:28:50,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:28:50,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 01:28:50,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929782393] [2024-11-10 01:28:50,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:28:50,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:28:50,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:28:50,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:28:50,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 01:28:50,586 INFO L87 Difference]: Start difference. First operand 1254 states and 1865 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 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) [2024-11-10 01:28:51,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:28:51,102 INFO L93 Difference]: Finished difference Result 2366 states and 3519 transitions. [2024-11-10 01:28:51,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:28:51,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 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 [2024-11-10 01:28:51,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:28:51,107 INFO L225 Difference]: With dead ends: 2366 [2024-11-10 01:28:51,108 INFO L226 Difference]: Without dead ends: 1254 [2024-11-10 01:28:51,110 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 [2024-11-10 01:28:51,111 INFO L432 NwaCegarLoop]: 1147 mSDtfsCounter, 6 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3432 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:28:51,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3432 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 01:28:51,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2024-11-10 01:28:51,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1254. [2024-11-10 01:28:51,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1253 states have (on average 1.48683160415004) internal successors, (1863), 1253 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:51,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1863 transitions. [2024-11-10 01:28:51,136 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1863 transitions. Word has length 167 [2024-11-10 01:28:51,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:28:51,137 INFO L471 AbstractCegarLoop]: Abstraction has 1254 states and 1863 transitions. [2024-11-10 01:28:51,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 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) [2024-11-10 01:28:51,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1863 transitions. [2024-11-10 01:28:51,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-10 01:28:51,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:28:51,139 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:28:51,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 01:28:51,139 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:28:51,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:28:51,140 INFO L85 PathProgramCache]: Analyzing trace with hash -631047570, now seen corresponding path program 1 times [2024-11-10 01:28:51,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:28:51,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768825603] [2024-11-10 01:28:51,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:28:51,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:28:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:28:52,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:28:52,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:28:52,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768825603] [2024-11-10 01:28:52,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768825603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:28:52,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:28:52,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 01:28:52,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768240602] [2024-11-10 01:28:52,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:28:52,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 01:28:52,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:28:52,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 01:28:52,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:28:52,189 INFO L87 Difference]: Start difference. First operand 1254 states and 1863 transitions. Second operand has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:53,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:28:53,034 INFO L93 Difference]: Finished difference Result 2396 states and 3558 transitions. [2024-11-10 01:28:53,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 01:28:53,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-11-10 01:28:53,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:28:53,041 INFO L225 Difference]: With dead ends: 2396 [2024-11-10 01:28:53,041 INFO L226 Difference]: Without dead ends: 1288 [2024-11-10 01:28:53,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:28:53,045 INFO L432 NwaCegarLoop]: 1144 mSDtfsCounter, 14 mSDsluCounter, 4587 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 5731 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 01:28:53,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 5731 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 01:28:53,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2024-11-10 01:28:53,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1280. [2024-11-10 01:28:53,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1279 states have (on average 1.4847537138389366) internal successors, (1899), 1279 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:53,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1899 transitions. [2024-11-10 01:28:53,079 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1899 transitions. Word has length 168 [2024-11-10 01:28:53,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:28:53,080 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 1899 transitions. [2024-11-10 01:28:53,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:53,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1899 transitions. [2024-11-10 01:28:53,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-10 01:28:53,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:28:53,083 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:28:53,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 01:28:53,084 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:28:53,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:28:53,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1153914645, now seen corresponding path program 1 times [2024-11-10 01:28:53,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:28:53,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548556663] [2024-11-10 01:28:53,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:28:53,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:28:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:28:54,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:28:54,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:28:54,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548556663] [2024-11-10 01:28:54,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548556663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:28:54,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:28:54,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 01:28:54,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384765503] [2024-11-10 01:28:54,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:28:54,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:28:54,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:28:54,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:28:54,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:28:54,191 INFO L87 Difference]: Start difference. First operand 1280 states and 1899 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:54,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:28:54,818 INFO L93 Difference]: Finished difference Result 2424 states and 3596 transitions. [2024-11-10 01:28:54,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 01:28:54,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-10 01:28:54,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:28:54,823 INFO L225 Difference]: With dead ends: 2424 [2024-11-10 01:28:54,824 INFO L226 Difference]: Without dead ends: 1286 [2024-11-10 01:28:54,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:28:54,826 INFO L432 NwaCegarLoop]: 1125 mSDtfsCounter, 1319 mSDsluCounter, 2245 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:28:54,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 3370 Invalid, 770 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 01:28:54,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2024-11-10 01:28:54,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1286. [2024-11-10 01:28:54,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 1.482490272373541) internal successors, (1905), 1285 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:54,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1905 transitions. [2024-11-10 01:28:54,853 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1905 transitions. Word has length 169 [2024-11-10 01:28:54,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:28:54,854 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 1905 transitions. [2024-11-10 01:28:54,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:54,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1905 transitions. [2024-11-10 01:28:54,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-10 01:28:54,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:28:54,856 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:28:54,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 01:28:54,856 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:28:54,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:28:54,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1336686004, now seen corresponding path program 1 times [2024-11-10 01:28:54,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:28:54,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669053927] [2024-11-10 01:28:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:28:54,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:28:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:28:55,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:28:55,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:28:55,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669053927] [2024-11-10 01:28:55,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669053927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:28:55,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:28:55,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 01:28:55,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062228948] [2024-11-10 01:28:55,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:28:55,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 01:28:55,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:28:55,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 01:28:55,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:28:55,652 INFO L87 Difference]: Start difference. First operand 1286 states and 1905 transitions. Second operand has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:56,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:28:56,551 INFO L93 Difference]: Finished difference Result 2652 states and 3934 transitions. [2024-11-10 01:28:56,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 01:28:56,552 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-10 01:28:56,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:28:56,558 INFO L225 Difference]: With dead ends: 2652 [2024-11-10 01:28:56,558 INFO L226 Difference]: Without dead ends: 1734 [2024-11-10 01:28:56,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:28:56,561 INFO L432 NwaCegarLoop]: 1143 mSDtfsCounter, 146 mSDsluCounter, 5881 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 7024 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 01:28:56,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 7024 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 01:28:56,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2024-11-10 01:28:56,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1730. [2024-11-10 01:28:56,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1729 states have (on average 1.482938114517062) internal successors, (2564), 1729 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:56,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2564 transitions. [2024-11-10 01:28:56,592 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2564 transitions. Word has length 169 [2024-11-10 01:28:56,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:28:56,592 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 2564 transitions. [2024-11-10 01:28:56,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:28:56,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2564 transitions. [2024-11-10 01:28:56,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-10 01:28:56,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:28:56,595 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:28:56,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 01:28:56,595 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:28:56,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:28:56,596 INFO L85 PathProgramCache]: Analyzing trace with hash 674337020, now seen corresponding path program 1 times [2024-11-10 01:28:56,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:28:56,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286324685] [2024-11-10 01:28:56,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:28:56,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:28:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:28:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:28:58,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:28:58,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286324685] [2024-11-10 01:28:58,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286324685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:28:58,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:28:58,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-10 01:28:58,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551492083] [2024-11-10 01:28:58,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:28:58,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 01:28:58,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:28:58,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 01:28:58,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-11-10 01:28:58,291 INFO L87 Difference]: Start difference. First operand 1730 states and 2564 transitions. Second operand has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:00,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:00,404 INFO L93 Difference]: Finished difference Result 3355 states and 4977 transitions. [2024-11-10 01:29:00,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 01:29:00,406 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-10 01:29:00,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:00,414 INFO L225 Difference]: With dead ends: 3355 [2024-11-10 01:29:00,415 INFO L226 Difference]: Without dead ends: 2199 [2024-11-10 01:29:00,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-10 01:29:00,419 INFO L432 NwaCegarLoop]: 1130 mSDtfsCounter, 434 mSDsluCounter, 14947 mSDsCounter, 0 mSdLazyCounter, 3602 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 16077 SdHoareTripleChecker+Invalid, 3603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:00,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 16077 Invalid, 3603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3602 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-10 01:29:00,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2024-11-10 01:29:00,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 2022. [2024-11-10 01:29:00,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 2021 states have (on average 1.4824344383968333) internal successors, (2996), 2021 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2996 transitions. [2024-11-10 01:29:00,462 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2996 transitions. Word has length 169 [2024-11-10 01:29:00,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:00,463 INFO L471 AbstractCegarLoop]: Abstraction has 2022 states and 2996 transitions. [2024-11-10 01:29:00,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:00,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2996 transitions. [2024-11-10 01:29:00,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-10 01:29:00,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:00,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:00,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 01:29:00,467 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:00,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:00,467 INFO L85 PathProgramCache]: Analyzing trace with hash 2126937265, now seen corresponding path program 1 times [2024-11-10 01:29:00,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:00,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873331923] [2024-11-10 01:29:00,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:00,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:01,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:01,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:01,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873331923] [2024-11-10 01:29:01,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873331923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:01,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:01,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:29:01,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140296997] [2024-11-10 01:29:01,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:01,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:29:01,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:01,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:29:01,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:29:01,637 INFO L87 Difference]: Start difference. First operand 2022 states and 2996 transitions. Second operand has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:04,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-10 01:29:04,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:04,191 INFO L93 Difference]: Finished difference Result 4542 states and 6741 transitions. [2024-11-10 01:29:04,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 01:29:04,195 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-10 01:29:04,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:04,206 INFO L225 Difference]: With dead ends: 4542 [2024-11-10 01:29:04,206 INFO L226 Difference]: Without dead ends: 3227 [2024-11-10 01:29:04,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-10 01:29:04,210 INFO L432 NwaCegarLoop]: 1139 mSDtfsCounter, 1526 mSDsluCounter, 5337 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 6476 SdHoareTripleChecker+Invalid, 1916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:04,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 6476 Invalid, 1916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-10 01:29:04,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2024-11-10 01:29:04,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 2727. [2024-11-10 01:29:04,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2727 states, 2726 states have (on average 1.4823917828319884) internal successors, (4041), 2726 states have internal predecessors, (4041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:04,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2727 states to 2727 states and 4041 transitions. [2024-11-10 01:29:04,261 INFO L78 Accepts]: Start accepts. Automaton has 2727 states and 4041 transitions. Word has length 169 [2024-11-10 01:29:04,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:04,262 INFO L471 AbstractCegarLoop]: Abstraction has 2727 states and 4041 transitions. [2024-11-10 01:29:04,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:04,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2727 states and 4041 transitions. [2024-11-10 01:29:04,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-10 01:29:04,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:04,265 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, 1, 1, 1, 1, 1] [2024-11-10 01:29:04,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 01:29:04,266 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:04,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:04,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1470233977, now seen corresponding path program 1 times [2024-11-10 01:29:04,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:04,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517380884] [2024-11-10 01:29:04,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:04,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:04,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:04,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:04,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517380884] [2024-11-10 01:29:04,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517380884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:04,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:04,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 01:29:04,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077040564] [2024-11-10 01:29:04,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:04,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:29:04,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:04,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:29:04,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 01:29:04,750 INFO L87 Difference]: Start difference. First operand 2727 states and 4041 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:05,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:05,152 INFO L93 Difference]: Finished difference Result 4718 states and 6999 transitions. [2024-11-10 01:29:05,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:29:05,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-10 01:29:05,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:05,161 INFO L225 Difference]: With dead ends: 4718 [2024-11-10 01:29:05,162 INFO L226 Difference]: Without dead ends: 2739 [2024-11-10 01:29:05,165 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 [2024-11-10 01:29:05,165 INFO L432 NwaCegarLoop]: 1149 mSDtfsCounter, 0 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3439 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:05,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3439 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 01:29:05,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2024-11-10 01:29:05,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2739. [2024-11-10 01:29:05,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2739 states, 2738 states have (on average 1.4802775748721695) internal successors, (4053), 2738 states have internal predecessors, (4053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:05,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 4053 transitions. [2024-11-10 01:29:05,231 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 4053 transitions. Word has length 169 [2024-11-10 01:29:05,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:05,231 INFO L471 AbstractCegarLoop]: Abstraction has 2739 states and 4053 transitions. [2024-11-10 01:29:05,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:05,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 4053 transitions. [2024-11-10 01:29:05,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-10 01:29:05,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:05,236 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:05,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 01:29:05,236 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:05,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:05,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1762403315, now seen corresponding path program 1 times [2024-11-10 01:29:05,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:05,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121981532] [2024-11-10 01:29:05,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:05,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:06,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:06,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:06,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121981532] [2024-11-10 01:29:06,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121981532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:06,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:06,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 01:29:06,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052586265] [2024-11-10 01:29:06,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:06,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:29:06,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:06,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:29:06,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:29:06,198 INFO L87 Difference]: Start difference. First operand 2739 states and 4053 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:06,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:06,709 INFO L93 Difference]: Finished difference Result 5333 states and 7892 transitions. [2024-11-10 01:29:06,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 01:29:06,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-10 01:29:06,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:06,717 INFO L225 Difference]: With dead ends: 5333 [2024-11-10 01:29:06,717 INFO L226 Difference]: Without dead ends: 2751 [2024-11-10 01:29:06,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:29:06,726 INFO L432 NwaCegarLoop]: 1125 mSDtfsCounter, 1312 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 3369 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:06,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 3369 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 01:29:06,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2024-11-10 01:29:06,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 2751. [2024-11-10 01:29:06,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2751 states, 2750 states have (on average 1.4781818181818183) internal successors, (4065), 2750 states have internal predecessors, (4065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:06,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2751 states to 2751 states and 4065 transitions. [2024-11-10 01:29:06,774 INFO L78 Accepts]: Start accepts. Automaton has 2751 states and 4065 transitions. Word has length 169 [2024-11-10 01:29:06,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:06,776 INFO L471 AbstractCegarLoop]: Abstraction has 2751 states and 4065 transitions. [2024-11-10 01:29:06,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2751 states and 4065 transitions. [2024-11-10 01:29:06,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-10 01:29:06,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:06,780 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:06,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 01:29:06,781 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:06,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:06,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1158326828, now seen corresponding path program 1 times [2024-11-10 01:29:06,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:06,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609132518] [2024-11-10 01:29:06,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:06,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:08,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:08,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:08,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609132518] [2024-11-10 01:29:08,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609132518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:08,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:08,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-10 01:29:08,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756315050] [2024-11-10 01:29:08,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:08,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 01:29:08,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:08,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 01:29:08,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-10 01:29:08,480 INFO L87 Difference]: Start difference. First operand 2751 states and 4065 transitions. Second operand has 16 states, 16 states have (on average 10.625) internal successors, (170), 16 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:10,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:10,149 INFO L93 Difference]: Finished difference Result 5264 states and 7779 transitions. [2024-11-10 01:29:10,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 01:29:10,149 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.625) internal successors, (170), 16 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2024-11-10 01:29:10,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:10,157 INFO L225 Difference]: With dead ends: 5264 [2024-11-10 01:29:10,157 INFO L226 Difference]: Without dead ends: 3557 [2024-11-10 01:29:10,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2024-11-10 01:29:10,161 INFO L432 NwaCegarLoop]: 1109 mSDtfsCounter, 1964 mSDsluCounter, 12533 mSDsCounter, 0 mSdLazyCounter, 3365 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1964 SdHoareTripleChecker+Valid, 13642 SdHoareTripleChecker+Invalid, 3366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:10,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1964 Valid, 13642 Invalid, 3366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3365 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 01:29:10,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2024-11-10 01:29:10,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 3238. [2024-11-10 01:29:10,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3238 states, 3237 states have (on average 1.4751312944084027) internal successors, (4775), 3237 states have internal predecessors, (4775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 4775 transitions. [2024-11-10 01:29:10,215 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 4775 transitions. Word has length 170 [2024-11-10 01:29:10,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:10,215 INFO L471 AbstractCegarLoop]: Abstraction has 3238 states and 4775 transitions. [2024-11-10 01:29:10,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.625) internal successors, (170), 16 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:10,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 4775 transitions. [2024-11-10 01:29:10,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-10 01:29:10,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:10,219 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:10,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 01:29:10,220 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:10,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:10,220 INFO L85 PathProgramCache]: Analyzing trace with hash 709719113, now seen corresponding path program 1 times [2024-11-10 01:29:10,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:10,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324524107] [2024-11-10 01:29:10,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:10,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:11,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:11,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:11,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324524107] [2024-11-10 01:29:11,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324524107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:11,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:11,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 01:29:11,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086610515] [2024-11-10 01:29:11,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:11,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 01:29:11,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:11,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 01:29:11,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 01:29:11,483 INFO L87 Difference]: Start difference. First operand 3238 states and 4775 transitions. Second operand has 10 states, 10 states have (on average 17.0) internal successors, (170), 10 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:12,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:12,690 INFO L93 Difference]: Finished difference Result 6286 states and 9285 transitions. [2024-11-10 01:29:12,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 01:29:12,691 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.0) internal successors, (170), 10 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2024-11-10 01:29:12,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:12,698 INFO L225 Difference]: With dead ends: 6286 [2024-11-10 01:29:12,699 INFO L226 Difference]: Without dead ends: 4318 [2024-11-10 01:29:12,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-10 01:29:12,702 INFO L432 NwaCegarLoop]: 1179 mSDtfsCounter, 1505 mSDsluCounter, 3947 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 5126 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:12,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 5126 Invalid, 2267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 01:29:12,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4318 states. [2024-11-10 01:29:12,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4318 to 4222. [2024-11-10 01:29:12,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4222 states, 4221 states have (on average 1.4752428334517886) internal successors, (6227), 4221 states have internal predecessors, (6227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:12,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4222 states to 4222 states and 6227 transitions. [2024-11-10 01:29:12,761 INFO L78 Accepts]: Start accepts. Automaton has 4222 states and 6227 transitions. Word has length 170 [2024-11-10 01:29:12,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:12,762 INFO L471 AbstractCegarLoop]: Abstraction has 4222 states and 6227 transitions. [2024-11-10 01:29:12,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.0) internal successors, (170), 10 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:12,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4222 states and 6227 transitions. [2024-11-10 01:29:12,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-10 01:29:12,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:12,768 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:12,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 01:29:12,768 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:12,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:12,769 INFO L85 PathProgramCache]: Analyzing trace with hash -69517205, now seen corresponding path program 1 times [2024-11-10 01:29:12,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:12,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67620746] [2024-11-10 01:29:12,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:12,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:13,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:13,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:13,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67620746] [2024-11-10 01:29:13,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67620746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:13,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:13,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 01:29:13,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177485752] [2024-11-10 01:29:13,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:13,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 01:29:13,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:13,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 01:29:13,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:29:13,784 INFO L87 Difference]: Start difference. First operand 4222 states and 6227 transitions. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:15,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:15,396 INFO L93 Difference]: Finished difference Result 7632 states and 11250 transitions. [2024-11-10 01:29:15,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 01:29:15,396 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2024-11-10 01:29:15,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:15,403 INFO L225 Difference]: With dead ends: 7632 [2024-11-10 01:29:15,403 INFO L226 Difference]: Without dead ends: 4734 [2024-11-10 01:29:15,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-10 01:29:15,408 INFO L432 NwaCegarLoop]: 1105 mSDtfsCounter, 2487 mSDsluCounter, 3206 mSDsCounter, 0 mSdLazyCounter, 2590 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2487 SdHoareTripleChecker+Valid, 4311 SdHoareTripleChecker+Invalid, 2590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:15,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2487 Valid, 4311 Invalid, 2590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2590 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 01:29:15,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4734 states. [2024-11-10 01:29:15,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4734 to 4240. [2024-11-10 01:29:15,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4240 states, 4239 states have (on average 1.4746402453408822) internal successors, (6251), 4239 states have internal predecessors, (6251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:15,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4240 states to 4240 states and 6251 transitions. [2024-11-10 01:29:15,471 INFO L78 Accepts]: Start accepts. Automaton has 4240 states and 6251 transitions. Word has length 170 [2024-11-10 01:29:15,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:15,471 INFO L471 AbstractCegarLoop]: Abstraction has 4240 states and 6251 transitions. [2024-11-10 01:29:15,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:15,472 INFO L276 IsEmpty]: Start isEmpty. Operand 4240 states and 6251 transitions. [2024-11-10 01:29:15,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-10 01:29:15,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:15,477 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:15,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 01:29:15,477 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:15,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:15,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1775029724, now seen corresponding path program 1 times [2024-11-10 01:29:15,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:15,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598979991] [2024-11-10 01:29:15,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:15,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:15,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:15,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:15,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598979991] [2024-11-10 01:29:15,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598979991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:15,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:15,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 01:29:15,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928884233] [2024-11-10 01:29:15,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:15,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:29:15,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:15,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:29:15,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 01:29:15,826 INFO L87 Difference]: Start difference. First operand 4240 states and 6251 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:16,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:16,186 INFO L93 Difference]: Finished difference Result 8086 states and 11937 transitions. [2024-11-10 01:29:16,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:29:16,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2024-11-10 01:29:16,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:16,195 INFO L225 Difference]: With dead ends: 8086 [2024-11-10 01:29:16,196 INFO L226 Difference]: Without dead ends: 4256 [2024-11-10 01:29:16,201 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 [2024-11-10 01:29:16,202 INFO L432 NwaCegarLoop]: 1149 mSDtfsCounter, 0 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3439 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:16,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3439 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 01:29:16,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4256 states. [2024-11-10 01:29:16,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4256 to 4256. [2024-11-10 01:29:16,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4256 states, 4255 states have (on average 1.472855464159812) internal successors, (6267), 4255 states have internal predecessors, (6267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:16,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4256 states to 4256 states and 6267 transitions. [2024-11-10 01:29:16,260 INFO L78 Accepts]: Start accepts. Automaton has 4256 states and 6267 transitions. Word has length 170 [2024-11-10 01:29:16,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:16,260 INFO L471 AbstractCegarLoop]: Abstraction has 4256 states and 6267 transitions. [2024-11-10 01:29:16,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:16,261 INFO L276 IsEmpty]: Start isEmpty. Operand 4256 states and 6267 transitions. [2024-11-10 01:29:16,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-10 01:29:16,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:16,266 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:16,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 01:29:16,266 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:16,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:16,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1360389893, now seen corresponding path program 1 times [2024-11-10 01:29:16,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:16,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819701302] [2024-11-10 01:29:16,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:16,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:18,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:18,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:18,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819701302] [2024-11-10 01:29:18,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819701302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:18,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:18,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 01:29:18,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424263576] [2024-11-10 01:29:18,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:18,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 01:29:18,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:18,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 01:29:18,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:29:18,233 INFO L87 Difference]: Start difference. First operand 4256 states and 6267 transitions. Second operand has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:19,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:19,281 INFO L93 Difference]: Finished difference Result 8662 states and 12734 transitions. [2024-11-10 01:29:19,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 01:29:19,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2024-11-10 01:29:19,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:19,289 INFO L225 Difference]: With dead ends: 8662 [2024-11-10 01:29:19,290 INFO L226 Difference]: Without dead ends: 4652 [2024-11-10 01:29:19,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-10 01:29:19,294 INFO L432 NwaCegarLoop]: 1096 mSDtfsCounter, 2195 mSDsluCounter, 4378 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2195 SdHoareTripleChecker+Valid, 5474 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:19,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2195 Valid, 5474 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 01:29:19,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4652 states. [2024-11-10 01:29:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4652 to 4260. [2024-11-10 01:29:19,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4260 states, 4259 states have (on average 1.4714721765672694) internal successors, (6267), 4259 states have internal predecessors, (6267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:19,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 6267 transitions. [2024-11-10 01:29:19,344 INFO L78 Accepts]: Start accepts. Automaton has 4260 states and 6267 transitions. Word has length 170 [2024-11-10 01:29:19,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:19,345 INFO L471 AbstractCegarLoop]: Abstraction has 4260 states and 6267 transitions. [2024-11-10 01:29:19,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:19,345 INFO L276 IsEmpty]: Start isEmpty. Operand 4260 states and 6267 transitions. [2024-11-10 01:29:19,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-10 01:29:19,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:19,350 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:19,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 01:29:19,350 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:19,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:19,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1213457188, now seen corresponding path program 1 times [2024-11-10 01:29:19,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:19,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735585717] [2024-11-10 01:29:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:19,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:20,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:20,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:20,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735585717] [2024-11-10 01:29:20,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735585717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:20,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:20,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 01:29:20,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186475517] [2024-11-10 01:29:20,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:20,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 01:29:20,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:20,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 01:29:20,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:29:20,644 INFO L87 Difference]: Start difference. First operand 4260 states and 6267 transitions. Second operand has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:21,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:21,482 INFO L93 Difference]: Finished difference Result 8642 states and 12698 transitions. [2024-11-10 01:29:21,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 01:29:21,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2024-11-10 01:29:21,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:21,491 INFO L225 Difference]: With dead ends: 8642 [2024-11-10 01:29:21,491 INFO L226 Difference]: Without dead ends: 4652 [2024-11-10 01:29:21,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-10 01:29:21,499 INFO L432 NwaCegarLoop]: 1119 mSDtfsCounter, 1741 mSDsluCounter, 4465 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 5584 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:21,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1741 Valid, 5584 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 01:29:21,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4652 states. [2024-11-10 01:29:21,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4652 to 4252. [2024-11-10 01:29:21,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4252 states, 4251 states have (on average 1.4714184897671136) internal successors, (6255), 4251 states have internal predecessors, (6255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:21,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4252 states to 4252 states and 6255 transitions. [2024-11-10 01:29:21,559 INFO L78 Accepts]: Start accepts. Automaton has 4252 states and 6255 transitions. Word has length 171 [2024-11-10 01:29:21,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:21,560 INFO L471 AbstractCegarLoop]: Abstraction has 4252 states and 6255 transitions. [2024-11-10 01:29:21,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:21,560 INFO L276 IsEmpty]: Start isEmpty. Operand 4252 states and 6255 transitions. [2024-11-10 01:29:21,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-10 01:29:21,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:21,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:21,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 01:29:21,565 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:21,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:21,566 INFO L85 PathProgramCache]: Analyzing trace with hash -238454487, now seen corresponding path program 1 times [2024-11-10 01:29:21,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:21,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297196200] [2024-11-10 01:29:21,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:21,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:22,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:22,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:22,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297196200] [2024-11-10 01:29:22,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297196200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:22,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:22,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 01:29:22,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509387553] [2024-11-10 01:29:22,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:22,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 01:29:22,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:22,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 01:29:22,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:29:22,179 INFO L87 Difference]: Start difference. First operand 4252 states and 6255 transitions. Second operand has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:22,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:22,882 INFO L93 Difference]: Finished difference Result 8294 states and 12213 transitions. [2024-11-10 01:29:22,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 01:29:22,883 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2024-11-10 01:29:22,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:22,889 INFO L225 Difference]: With dead ends: 8294 [2024-11-10 01:29:22,889 INFO L226 Difference]: Without dead ends: 4348 [2024-11-10 01:29:22,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:29:22,894 INFO L432 NwaCegarLoop]: 1145 mSDtfsCounter, 10 mSDsluCounter, 4574 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5719 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:22,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5719 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 01:29:22,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4348 states. [2024-11-10 01:29:22,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4348 to 4324. [2024-11-10 01:29:22,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 4323 states have (on average 1.46911866759195) internal successors, (6351), 4323 states have internal predecessors, (6351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:22,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 6351 transitions. [2024-11-10 01:29:22,938 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 6351 transitions. Word has length 171 [2024-11-10 01:29:22,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:22,939 INFO L471 AbstractCegarLoop]: Abstraction has 4324 states and 6351 transitions. [2024-11-10 01:29:22,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:22,939 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 6351 transitions. [2024-11-10 01:29:22,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-10 01:29:22,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:22,944 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:22,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 01:29:22,944 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:22,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:22,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1956945172, now seen corresponding path program 1 times [2024-11-10 01:29:22,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:22,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29008480] [2024-11-10 01:29:22,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:22,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:23,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:23,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:23,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29008480] [2024-11-10 01:29:23,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29008480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:23,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:23,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 01:29:23,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063762304] [2024-11-10 01:29:23,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:23,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 01:29:23,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:23,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 01:29:23,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:29:23,303 INFO L87 Difference]: Start difference. First operand 4324 states and 6351 transitions. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:24,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:24,507 INFO L93 Difference]: Finished difference Result 9602 states and 14112 transitions. [2024-11-10 01:29:24,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:29:24,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2024-11-10 01:29:24,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:24,514 INFO L225 Difference]: With dead ends: 9602 [2024-11-10 01:29:24,514 INFO L226 Difference]: Without dead ends: 4356 [2024-11-10 01:29:24,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:29:24,520 INFO L432 NwaCegarLoop]: 1112 mSDtfsCounter, 790 mSDsluCounter, 4057 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 5169 SdHoareTripleChecker+Invalid, 2036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:24,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 5169 Invalid, 2036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 01:29:24,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4356 states. [2024-11-10 01:29:24,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4356 to 4340. [2024-11-10 01:29:24,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4340 states, 4339 states have (on average 1.467388799262503) internal successors, (6367), 4339 states have internal predecessors, (6367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:24,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4340 states to 4340 states and 6367 transitions. [2024-11-10 01:29:24,564 INFO L78 Accepts]: Start accepts. Automaton has 4340 states and 6367 transitions. Word has length 172 [2024-11-10 01:29:24,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:24,565 INFO L471 AbstractCegarLoop]: Abstraction has 4340 states and 6367 transitions. [2024-11-10 01:29:24,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:24,565 INFO L276 IsEmpty]: Start isEmpty. Operand 4340 states and 6367 transitions. [2024-11-10 01:29:24,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-10 01:29:24,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:24,569 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:24,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 01:29:24,571 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:24,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:24,571 INFO L85 PathProgramCache]: Analyzing trace with hash -170336433, now seen corresponding path program 1 times [2024-11-10 01:29:24,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:24,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208310193] [2024-11-10 01:29:24,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:24,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:25,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:25,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208310193] [2024-11-10 01:29:25,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208310193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:25,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:25,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 01:29:25,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115059511] [2024-11-10 01:29:25,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:25,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 01:29:25,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:25,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 01:29:25,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:29:25,254 INFO L87 Difference]: Start difference. First operand 4340 states and 6367 transitions. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:25,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:25,898 INFO L93 Difference]: Finished difference Result 8734 states and 12802 transitions. [2024-11-10 01:29:25,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:29:25,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2024-11-10 01:29:25,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:25,904 INFO L225 Difference]: With dead ends: 8734 [2024-11-10 01:29:25,905 INFO L226 Difference]: Without dead ends: 4716 [2024-11-10 01:29:25,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:29:25,911 INFO L432 NwaCegarLoop]: 1110 mSDtfsCounter, 2171 mSDsluCounter, 3324 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 4434 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:25,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 4434 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 01:29:25,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4716 states. [2024-11-10 01:29:25,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4716 to 4332. [2024-11-10 01:29:25,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4332 states, 4331 states have (on average 1.4654814130685754) internal successors, (6347), 4331 states have internal predecessors, (6347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:25,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 6347 transitions. [2024-11-10 01:29:25,964 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 6347 transitions. Word has length 172 [2024-11-10 01:29:25,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:25,964 INFO L471 AbstractCegarLoop]: Abstraction has 4332 states and 6347 transitions. [2024-11-10 01:29:25,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:25,965 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 6347 transitions. [2024-11-10 01:29:25,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-10 01:29:25,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:25,969 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:25,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-10 01:29:25,970 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:25,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:25,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1574894316, now seen corresponding path program 1 times [2024-11-10 01:29:25,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:25,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026703582] [2024-11-10 01:29:25,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:25,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:27,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:27,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:27,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026703582] [2024-11-10 01:29:27,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026703582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:27,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:27,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 01:29:27,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557823165] [2024-11-10 01:29:27,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:27,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:29:27,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:27,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:29:27,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:29:27,216 INFO L87 Difference]: Start difference. First operand 4332 states and 6347 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:28,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:28,433 INFO L93 Difference]: Finished difference Result 9302 states and 13628 transitions. [2024-11-10 01:29:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 01:29:28,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2024-11-10 01:29:28,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:28,441 INFO L225 Difference]: With dead ends: 9302 [2024-11-10 01:29:28,441 INFO L226 Difference]: Without dead ends: 5216 [2024-11-10 01:29:28,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:29:28,446 INFO L432 NwaCegarLoop]: 1113 mSDtfsCounter, 2485 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 3336 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:28,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 3336 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 01:29:28,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5216 states. [2024-11-10 01:29:28,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5216 to 4332. [2024-11-10 01:29:28,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4332 states, 4331 states have (on average 1.4645578388362965) internal successors, (6343), 4331 states have internal predecessors, (6343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:28,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 6343 transitions. [2024-11-10 01:29:28,500 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 6343 transitions. Word has length 172 [2024-11-10 01:29:28,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:28,500 INFO L471 AbstractCegarLoop]: Abstraction has 4332 states and 6343 transitions. [2024-11-10 01:29:28,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:28,500 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 6343 transitions. [2024-11-10 01:29:28,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-10 01:29:28,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:28,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:28,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-10 01:29:28,505 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:28,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:28,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2106485579, now seen corresponding path program 1 times [2024-11-10 01:29:28,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:28,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480807404] [2024-11-10 01:29:28,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:28,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:29:29,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:29:29,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:29:29,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480807404] [2024-11-10 01:29:29,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480807404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:29:29,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:29:29,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 01:29:29,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249872471] [2024-11-10 01:29:29,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:29:29,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:29:29,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:29:29,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:29:29,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:29:29,609 INFO L87 Difference]: Start difference. First operand 4332 states and 6343 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:30,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:29:30,507 INFO L93 Difference]: Finished difference Result 8964 states and 13158 transitions. [2024-11-10 01:29:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 01:29:30,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-10 01:29:30,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:29:30,512 INFO L225 Difference]: With dead ends: 8964 [2024-11-10 01:29:30,512 INFO L226 Difference]: Without dead ends: 5204 [2024-11-10 01:29:30,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:29:30,515 INFO L432 NwaCegarLoop]: 1113 mSDtfsCounter, 3576 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3576 SdHoareTripleChecker+Valid, 3335 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 01:29:30,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3576 Valid, 3335 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 01:29:30,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5204 states. [2024-11-10 01:29:30,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5204 to 4320. [2024-11-10 01:29:30,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4320 states, 4319 states have (on average 1.460291734197731) internal successors, (6307), 4319 states have internal predecessors, (6307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:30,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4320 states to 4320 states and 6307 transitions. [2024-11-10 01:29:30,566 INFO L78 Accepts]: Start accepts. Automaton has 4320 states and 6307 transitions. Word has length 173 [2024-11-10 01:29:30,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:29:30,566 INFO L471 AbstractCegarLoop]: Abstraction has 4320 states and 6307 transitions. [2024-11-10 01:29:30,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:29:30,566 INFO L276 IsEmpty]: Start isEmpty. Operand 4320 states and 6307 transitions. [2024-11-10 01:29:30,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-10 01:29:30,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:29:30,570 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:29:30,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-10 01:29:30,571 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:29:30,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:29:30,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1621781612, now seen corresponding path program 1 times [2024-11-10 01:29:30,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:29:30,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544585725] [2024-11-10 01:29:30,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:29:30,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:29:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat