./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label46.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/eca-rers2012/Problem11_label46.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 201cd0b9f7312851770c009ac8fff4b46d270c8816b37eb4df1c49891060a8fb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:51:08,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:51:08,101 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:51:08,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:51:08,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:51:08,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:51:08,138 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:51:08,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:51:08,139 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:51:08,142 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:51:08,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:51:08,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:51:08,143 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:51:08,143 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:51:08,144 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:51:08,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:51:08,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:51:08,147 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:51:08,147 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:51:08,147 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:51:08,147 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:51:08,148 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:51:08,148 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:51:08,148 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:51:08,148 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:51:08,148 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:51:08,149 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:51:08,149 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:51:08,149 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:51:08,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:51:08,149 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:51:08,150 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:51:08,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:51:08,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:51:08,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:51:08,150 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:51:08,151 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:51:08,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:51:08,151 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:51:08,151 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:51:08,151 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:51:08,152 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:51:08,153 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 201cd0b9f7312851770c009ac8fff4b46d270c8816b37eb4df1c49891060a8fb [2024-11-16 03:51:08,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:51:08,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:51:08,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:51:08,407 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:51:08,407 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:51:08,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label46.c [2024-11-16 03:51:09,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:51:09,898 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:51:09,898 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label46.c [2024-11-16 03:51:09,908 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0df67eef6/ea5b445afb1244f3802a98d602f07180/FLAGeb8c5edbb [2024-11-16 03:51:10,250 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0df67eef6/ea5b445afb1244f3802a98d602f07180 [2024-11-16 03:51:10,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:51:10,253 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:51:10,254 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:51:10,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:51:10,284 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:51:10,285 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:10,286 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e91f926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10, skipping insertion in model container [2024-11-16 03:51:10,286 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:10,324 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:51:10,530 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/eca-rers2012/Problem11_label46.c[8949,8962] [2024-11-16 03:51:10,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:51:10,720 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:51:10,749 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/eca-rers2012/Problem11_label46.c[8949,8962] [2024-11-16 03:51:10,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:51:10,830 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:51:10,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10 WrapperNode [2024-11-16 03:51:10,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:51:10,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:51:10,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:51:10,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:51:10,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:10,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:10,946 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2024-11-16 03:51:10,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:51:10,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:51:10,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:51:10,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:51:10,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:10,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:10,962 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:11,034 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]. [2024-11-16 03:51:11,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:11,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:11,094 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:11,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:11,130 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:11,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:11,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:51:11,158 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:51:11,159 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:51:11,159 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:51:11,159 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10" (1/1) ... [2024-11-16 03:51:11,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:51:11,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:51:11,190 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) [2024-11-16 03:51:11,193 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 [2024-11-16 03:51:11,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:51:11,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:51:11,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:51:11,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:51:11,274 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:51:11,275 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:51:12,492 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-16 03:51:12,492 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:51:12,505 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:51:12,505 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:51:12,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:51:12 BoogieIcfgContainer [2024-11-16 03:51:12,506 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:51:12,507 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:51:12,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:51:12,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:51:12,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:51:10" (1/3) ... [2024-11-16 03:51:12,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4e6406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:51:12, skipping insertion in model container [2024-11-16 03:51:12,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:10" (2/3) ... [2024-11-16 03:51:12,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4e6406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:51:12, skipping insertion in model container [2024-11-16 03:51:12,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:51:12" (3/3) ... [2024-11-16 03:51:12,516 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label46.c [2024-11-16 03:51:12,542 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:51:12,545 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:51:12,610 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:51:12,615 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;@483f11e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:51:12,616 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:51:12,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 286 states, 284 states have (on average 1.7077464788732395) internal successors, (485), 285 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:12,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-16 03:51:12,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:12,628 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] [2024-11-16 03:51:12,628 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:12,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:12,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1322178524, now seen corresponding path program 1 times [2024-11-16 03:51:12,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:12,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278619185] [2024-11-16 03:51:12,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:12,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:13,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:13,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:13,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278619185] [2024-11-16 03:51:13,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278619185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:13,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:13,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:51:13,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131098175] [2024-11-16 03:51:13,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:13,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:13,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:13,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:13,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:13,228 INFO L87 Difference]: Start difference. First operand has 286 states, 284 states have (on average 1.7077464788732395) internal successors, (485), 285 states have internal predecessors, (485), 0 states have call successors, (0), 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 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:14,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:14,153 INFO L93 Difference]: Finished difference Result 782 states and 1369 transitions. [2024-11-16 03:51:14,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:14,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-16 03:51:14,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:14,165 INFO L225 Difference]: With dead ends: 782 [2024-11-16 03:51:14,165 INFO L226 Difference]: Without dead ends: 416 [2024-11-16 03:51:14,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:14,170 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 165 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:14,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 200 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 03:51:14,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-16 03:51:14,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 414. [2024-11-16 03:51:14,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 413 states have (on average 1.4552058111380146) internal successors, (601), 413 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:14,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 601 transitions. [2024-11-16 03:51:14,219 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 601 transitions. Word has length 64 [2024-11-16 03:51:14,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:14,219 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 601 transitions. [2024-11-16 03:51:14,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:14,220 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 601 transitions. [2024-11-16 03:51:14,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-16 03:51:14,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:14,223 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:14,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:51:14,224 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:14,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:14,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1741231596, now seen corresponding path program 1 times [2024-11-16 03:51:14,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:14,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451750839] [2024-11-16 03:51:14,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:14,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:14,373 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:14,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:14,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451750839] [2024-11-16 03:51:14,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451750839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:14,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:14,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:51:14,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692952166] [2024-11-16 03:51:14,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:14,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:14,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:14,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:14,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:14,377 INFO L87 Difference]: Start difference. First operand 414 states and 601 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:15,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:15,011 INFO L93 Difference]: Finished difference Result 1217 states and 1773 transitions. [2024-11-16 03:51:15,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:15,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2024-11-16 03:51:15,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:15,016 INFO L225 Difference]: With dead ends: 1217 [2024-11-16 03:51:15,016 INFO L226 Difference]: Without dead ends: 805 [2024-11-16 03:51:15,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:15,018 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 142 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:15,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 127 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:51:15,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2024-11-16 03:51:15,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 792. [2024-11-16 03:51:15,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 1.381795195954488) internal successors, (1093), 791 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:15,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1093 transitions. [2024-11-16 03:51:15,041 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1093 transitions. Word has length 133 [2024-11-16 03:51:15,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:15,041 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1093 transitions. [2024-11-16 03:51:15,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:15,041 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1093 transitions. [2024-11-16 03:51:15,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 03:51:15,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:15,044 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:15,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:51:15,045 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:15,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:15,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2070557169, now seen corresponding path program 1 times [2024-11-16 03:51:15,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:15,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141623212] [2024-11-16 03:51:15,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:15,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:15,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:15,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141623212] [2024-11-16 03:51:15,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141623212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:15,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:15,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:51:15,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327715829] [2024-11-16 03:51:15,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:15,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:15,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:15,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:15,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:15,303 INFO L87 Difference]: Start difference. First operand 792 states and 1093 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:15,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:15,923 INFO L93 Difference]: Finished difference Result 1953 states and 2640 transitions. [2024-11-16 03:51:15,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:15,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-11-16 03:51:15,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:15,927 INFO L225 Difference]: With dead ends: 1953 [2024-11-16 03:51:15,928 INFO L226 Difference]: Without dead ends: 1163 [2024-11-16 03:51:15,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:15,930 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 119 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:15,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 197 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:51:15,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2024-11-16 03:51:15,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1163. [2024-11-16 03:51:15,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1162 states have (on average 1.2753872633390706) internal successors, (1482), 1162 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:15,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1482 transitions. [2024-11-16 03:51:15,951 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1482 transitions. Word has length 135 [2024-11-16 03:51:15,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:15,952 INFO L471 AbstractCegarLoop]: Abstraction has 1163 states and 1482 transitions. [2024-11-16 03:51:15,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:15,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1482 transitions. [2024-11-16 03:51:15,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 03:51:15,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:15,960 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:15,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:51:15,961 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:15,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:15,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1777497436, now seen corresponding path program 1 times [2024-11-16 03:51:15,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:15,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583370825] [2024-11-16 03:51:15,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:15,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:16,095 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 03:51:16,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:16,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583370825] [2024-11-16 03:51:16,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583370825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:16,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:16,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:51:16,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791649453] [2024-11-16 03:51:16,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:16,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:16,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:16,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:16,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:16,124 INFO L87 Difference]: Start difference. First operand 1163 states and 1482 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:16,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:16,773 INFO L93 Difference]: Finished difference Result 3074 states and 3932 transitions. [2024-11-16 03:51:16,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:16,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 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 177 [2024-11-16 03:51:16,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:16,778 INFO L225 Difference]: With dead ends: 3074 [2024-11-16 03:51:16,779 INFO L226 Difference]: Without dead ends: 1913 [2024-11-16 03:51:16,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:16,781 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 108 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:16,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 161 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:51:16,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1913 states. [2024-11-16 03:51:16,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1913 to 1912. [2024-11-16 03:51:16,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1912 states, 1911 states have (on average 1.2187336473050758) internal successors, (2329), 1911 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:16,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2329 transitions. [2024-11-16 03:51:16,806 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2329 transitions. Word has length 177 [2024-11-16 03:51:16,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:16,807 INFO L471 AbstractCegarLoop]: Abstraction has 1912 states and 2329 transitions. [2024-11-16 03:51:16,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:16,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2329 transitions. [2024-11-16 03:51:16,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-16 03:51:16,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:16,809 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:16,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:51:16,810 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:16,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:16,810 INFO L85 PathProgramCache]: Analyzing trace with hash -503828372, now seen corresponding path program 1 times [2024-11-16 03:51:16,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:16,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871832007] [2024-11-16 03:51:16,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:16,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:16,958 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:16,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:16,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871832007] [2024-11-16 03:51:16,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871832007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:16,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:16,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:16,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352096120] [2024-11-16 03:51:16,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:16,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:16,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:16,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:16,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:16,960 INFO L87 Difference]: Start difference. First operand 1912 states and 2329 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:17,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:17,651 INFO L93 Difference]: Finished difference Result 4407 states and 5534 transitions. [2024-11-16 03:51:17,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:17,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 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 192 [2024-11-16 03:51:17,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:17,659 INFO L225 Difference]: With dead ends: 4407 [2024-11-16 03:51:17,660 INFO L226 Difference]: Without dead ends: 2682 [2024-11-16 03:51:17,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:17,666 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 173 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:17,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 327 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:51:17,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2024-11-16 03:51:17,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2679. [2024-11-16 03:51:17,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2679 states, 2678 states have (on average 1.2337565347274084) internal successors, (3304), 2678 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:17,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2679 states to 2679 states and 3304 transitions. [2024-11-16 03:51:17,714 INFO L78 Accepts]: Start accepts. Automaton has 2679 states and 3304 transitions. Word has length 192 [2024-11-16 03:51:17,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:17,716 INFO L471 AbstractCegarLoop]: Abstraction has 2679 states and 3304 transitions. [2024-11-16 03:51:17,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:17,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2679 states and 3304 transitions. [2024-11-16 03:51:17,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-16 03:51:17,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:17,721 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:17,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:51:17,722 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:17,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:17,722 INFO L85 PathProgramCache]: Analyzing trace with hash 561213911, now seen corresponding path program 1 times [2024-11-16 03:51:17,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:17,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32852779] [2024-11-16 03:51:17,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:17,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:17,976 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-16 03:51:17,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:17,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32852779] [2024-11-16 03:51:17,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32852779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:17,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:17,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:17,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330097341] [2024-11-16 03:51:17,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:17,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:17,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:17,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:17,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:17,979 INFO L87 Difference]: Start difference. First operand 2679 states and 3304 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:18,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:18,651 INFO L93 Difference]: Finished difference Result 6654 states and 8337 transitions. [2024-11-16 03:51:18,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:18,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 248 [2024-11-16 03:51:18,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:18,660 INFO L225 Difference]: With dead ends: 6654 [2024-11-16 03:51:18,661 INFO L226 Difference]: Without dead ends: 3976 [2024-11-16 03:51:18,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:18,664 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 147 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:18,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 372 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:51:18,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3976 states. [2024-11-16 03:51:18,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3976 to 3976. [2024-11-16 03:51:18,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3976 states, 3975 states have (on average 1.239496855345912) internal successors, (4927), 3975 states have internal predecessors, (4927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:18,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3976 states to 3976 states and 4927 transitions. [2024-11-16 03:51:18,707 INFO L78 Accepts]: Start accepts. Automaton has 3976 states and 4927 transitions. Word has length 248 [2024-11-16 03:51:18,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:18,708 INFO L471 AbstractCegarLoop]: Abstraction has 3976 states and 4927 transitions. [2024-11-16 03:51:18,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:18,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3976 states and 4927 transitions. [2024-11-16 03:51:18,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-16 03:51:18,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:18,711 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:18,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:51:18,711 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:18,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:18,711 INFO L85 PathProgramCache]: Analyzing trace with hash -146221871, now seen corresponding path program 1 times [2024-11-16 03:51:18,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:18,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831509136] [2024-11-16 03:51:18,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:18,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:18,937 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 03:51:18,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:18,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831509136] [2024-11-16 03:51:18,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831509136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:18,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:18,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:18,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355690948] [2024-11-16 03:51:18,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:18,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:18,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:18,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:18,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:18,939 INFO L87 Difference]: Start difference. First operand 3976 states and 4927 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:19,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:19,630 INFO L93 Difference]: Finished difference Result 8699 states and 10938 transitions. [2024-11-16 03:51:19,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:19,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 259 [2024-11-16 03:51:19,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:19,642 INFO L225 Difference]: With dead ends: 8699 [2024-11-16 03:51:19,642 INFO L226 Difference]: Without dead ends: 4910 [2024-11-16 03:51:19,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:19,647 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 134 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:19,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 393 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:51:19,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4910 states. [2024-11-16 03:51:19,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4910 to 4900. [2024-11-16 03:51:19,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4900 states, 4899 states have (on average 1.219228413962033) internal successors, (5973), 4899 states have internal predecessors, (5973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:19,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4900 states to 4900 states and 5973 transitions. [2024-11-16 03:51:19,698 INFO L78 Accepts]: Start accepts. Automaton has 4900 states and 5973 transitions. Word has length 259 [2024-11-16 03:51:19,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:19,698 INFO L471 AbstractCegarLoop]: Abstraction has 4900 states and 5973 transitions. [2024-11-16 03:51:19,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:19,699 INFO L276 IsEmpty]: Start isEmpty. Operand 4900 states and 5973 transitions. [2024-11-16 03:51:19,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-16 03:51:19,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:19,702 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:19,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:51:19,703 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:19,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:19,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1497777311, now seen corresponding path program 1 times [2024-11-16 03:51:19,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:19,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91260144] [2024-11-16 03:51:19,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:19,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:20,045 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 121 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:20,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:20,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91260144] [2024-11-16 03:51:20,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91260144] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:51:20,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933890824] [2024-11-16 03:51:20,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:20,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:51:20,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:51:20,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:51:20,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:51:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:20,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:51:20,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:51:20,340 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:20,340 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:51:20,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933890824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:20,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:51:20,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:51:20,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539555816] [2024-11-16 03:51:20,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:20,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:20,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:20,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:20,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:51:20,342 INFO L87 Difference]: Start difference. First operand 4900 states and 5973 transitions. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:21,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:21,106 INFO L93 Difference]: Finished difference Result 10932 states and 13494 transitions. [2024-11-16 03:51:21,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:21,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 279 [2024-11-16 03:51:21,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:21,124 INFO L225 Difference]: With dead ends: 10932 [2024-11-16 03:51:21,124 INFO L226 Difference]: Without dead ends: 6219 [2024-11-16 03:51:21,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:51:21,131 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 123 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:21,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 305 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:51:21,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6219 states. [2024-11-16 03:51:21,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6219 to 6011. [2024-11-16 03:51:21,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6011 states, 6010 states have (on average 1.2178036605657239) internal successors, (7319), 6010 states have internal predecessors, (7319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:21,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6011 states to 6011 states and 7319 transitions. [2024-11-16 03:51:21,271 INFO L78 Accepts]: Start accepts. Automaton has 6011 states and 7319 transitions. Word has length 279 [2024-11-16 03:51:21,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:21,272 INFO L471 AbstractCegarLoop]: Abstraction has 6011 states and 7319 transitions. [2024-11-16 03:51:21,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:21,272 INFO L276 IsEmpty]: Start isEmpty. Operand 6011 states and 7319 transitions. [2024-11-16 03:51:21,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-11-16 03:51:21,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:21,278 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:21,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 03:51:21,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:51:21,480 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:21,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:21,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1686209167, now seen corresponding path program 1 times [2024-11-16 03:51:21,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:21,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231982522] [2024-11-16 03:51:21,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:21,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-16 03:51:21,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:21,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231982522] [2024-11-16 03:51:21,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231982522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:21,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:21,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:21,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64074994] [2024-11-16 03:51:21,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:21,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:21,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:21,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:21,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:21,987 INFO L87 Difference]: Start difference. First operand 6011 states and 7319 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:22,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:22,710 INFO L93 Difference]: Finished difference Result 12766 states and 15708 transitions. [2024-11-16 03:51:22,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:22,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 297 [2024-11-16 03:51:22,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:22,735 INFO L225 Difference]: With dead ends: 12766 [2024-11-16 03:51:22,735 INFO L226 Difference]: Without dead ends: 6941 [2024-11-16 03:51:22,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:22,747 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 137 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:22,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 388 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:51:22,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6941 states. [2024-11-16 03:51:22,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6941 to 6751. [2024-11-16 03:51:22,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6751 states, 6750 states have (on average 1.2059259259259258) internal successors, (8140), 6750 states have internal predecessors, (8140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:22,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6751 states to 6751 states and 8140 transitions. [2024-11-16 03:51:22,828 INFO L78 Accepts]: Start accepts. Automaton has 6751 states and 8140 transitions. Word has length 297 [2024-11-16 03:51:22,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:22,829 INFO L471 AbstractCegarLoop]: Abstraction has 6751 states and 8140 transitions. [2024-11-16 03:51:22,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand 6751 states and 8140 transitions. [2024-11-16 03:51:22,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-16 03:51:22,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:22,835 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:22,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:51:22,835 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:22,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:22,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1022872502, now seen corresponding path program 1 times [2024-11-16 03:51:22,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:22,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864807456] [2024-11-16 03:51:22,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:22,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:23,753 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 190 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:23,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:23,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864807456] [2024-11-16 03:51:23,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864807456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:51:23,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954269333] [2024-11-16 03:51:23,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:23,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:51:23,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:51:23,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:51:23,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:51:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:23,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:51:23,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:51:24,004 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:24,004 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:51:24,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954269333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:24,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:51:24,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2024-11-16 03:51:24,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869099495] [2024-11-16 03:51:24,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:24,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:24,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:24,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:24,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-16 03:51:24,006 INFO L87 Difference]: Start difference. First operand 6751 states and 8140 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:24,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:24,550 INFO L93 Difference]: Finished difference Result 13518 states and 16315 transitions. [2024-11-16 03:51:24,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:24,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 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 317 [2024-11-16 03:51:24,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:24,560 INFO L225 Difference]: With dead ends: 13518 [2024-11-16 03:51:24,560 INFO L226 Difference]: Without dead ends: 6954 [2024-11-16 03:51:24,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-16 03:51:24,566 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 63 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:24,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 340 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:51:24,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6954 states. [2024-11-16 03:51:24,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6954 to 6751. [2024-11-16 03:51:24,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6751 states, 6750 states have (on average 1.190074074074074) internal successors, (8033), 6750 states have internal predecessors, (8033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:24,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6751 states to 6751 states and 8033 transitions. [2024-11-16 03:51:24,696 INFO L78 Accepts]: Start accepts. Automaton has 6751 states and 8033 transitions. Word has length 317 [2024-11-16 03:51:24,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:24,697 INFO L471 AbstractCegarLoop]: Abstraction has 6751 states and 8033 transitions. [2024-11-16 03:51:24,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:24,697 INFO L276 IsEmpty]: Start isEmpty. Operand 6751 states and 8033 transitions. [2024-11-16 03:51:24,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-16 03:51:24,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:24,712 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:24,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 03:51:24,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 03:51:24,913 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:24,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:24,913 INFO L85 PathProgramCache]: Analyzing trace with hash -482198691, now seen corresponding path program 1 times [2024-11-16 03:51:24,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:24,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057778067] [2024-11-16 03:51:24,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:24,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:25,195 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-16 03:51:25,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:25,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057778067] [2024-11-16 03:51:25,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057778067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:25,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:25,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:25,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516543707] [2024-11-16 03:51:25,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:25,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:25,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:25,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:25,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:25,197 INFO L87 Difference]: Start difference. First operand 6751 states and 8033 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:25,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:25,951 INFO L93 Difference]: Finished difference Result 12914 states and 15376 transitions. [2024-11-16 03:51:25,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:25,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 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 334 [2024-11-16 03:51:25,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:25,959 INFO L225 Difference]: With dead ends: 12914 [2024-11-16 03:51:25,959 INFO L226 Difference]: Without dead ends: 6165 [2024-11-16 03:51:25,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:25,966 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 155 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:25,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 151 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:51:25,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6165 states. [2024-11-16 03:51:26,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6165 to 5238. [2024-11-16 03:51:26,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5238 states, 5237 states have (on average 1.138056139010884) internal successors, (5960), 5237 states have internal predecessors, (5960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:26,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5238 states to 5238 states and 5960 transitions. [2024-11-16 03:51:26,013 INFO L78 Accepts]: Start accepts. Automaton has 5238 states and 5960 transitions. Word has length 334 [2024-11-16 03:51:26,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:26,014 INFO L471 AbstractCegarLoop]: Abstraction has 5238 states and 5960 transitions. [2024-11-16 03:51:26,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:26,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5238 states and 5960 transitions. [2024-11-16 03:51:26,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-16 03:51:26,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:26,020 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:26,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:51:26,021 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:26,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:26,021 INFO L85 PathProgramCache]: Analyzing trace with hash -542540173, now seen corresponding path program 1 times [2024-11-16 03:51:26,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:26,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510105473] [2024-11-16 03:51:26,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:26,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:26,748 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:26,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:26,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510105473] [2024-11-16 03:51:26,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510105473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:26,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:26,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:26,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402015445] [2024-11-16 03:51:26,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:26,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:51:26,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:26,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:51:26,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:51:26,750 INFO L87 Difference]: Start difference. First operand 5238 states and 5960 transitions. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:27,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:27,771 INFO L93 Difference]: Finished difference Result 13812 states and 15750 transitions. [2024-11-16 03:51:27,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:51:27,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 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 348 [2024-11-16 03:51:27,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:27,786 INFO L225 Difference]: With dead ends: 13812 [2024-11-16 03:51:27,786 INFO L226 Difference]: Without dead ends: 8391 [2024-11-16 03:51:27,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:51:27,795 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 150 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:27,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 107 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 03:51:27,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2024-11-16 03:51:27,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 8387. [2024-11-16 03:51:27,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8387 states, 8386 states have (on average 1.1366563319818745) internal successors, (9532), 8386 states have internal predecessors, (9532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:28,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8387 states to 8387 states and 9532 transitions. [2024-11-16 03:51:28,005 INFO L78 Accepts]: Start accepts. Automaton has 8387 states and 9532 transitions. Word has length 348 [2024-11-16 03:51:28,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:28,006 INFO L471 AbstractCegarLoop]: Abstraction has 8387 states and 9532 transitions. [2024-11-16 03:51:28,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:28,007 INFO L276 IsEmpty]: Start isEmpty. Operand 8387 states and 9532 transitions. [2024-11-16 03:51:28,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-16 03:51:28,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:28,021 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:28,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:51:28,022 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:28,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:28,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1227384997, now seen corresponding path program 1 times [2024-11-16 03:51:28,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:28,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885142093] [2024-11-16 03:51:28,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:28,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-16 03:51:28,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:28,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885142093] [2024-11-16 03:51:28,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885142093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:28,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:28,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:28,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929112488] [2024-11-16 03:51:28,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:28,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:28,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:28,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:28,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:28,506 INFO L87 Difference]: Start difference. First operand 8387 states and 9532 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:29,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:29,087 INFO L93 Difference]: Finished difference Result 17702 states and 20133 transitions. [2024-11-16 03:51:29,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:29,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 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 354 [2024-11-16 03:51:29,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:29,114 INFO L225 Difference]: With dead ends: 17702 [2024-11-16 03:51:29,115 INFO L226 Difference]: Without dead ends: 9687 [2024-11-16 03:51:29,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:29,132 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 160 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:29,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 149 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:51:29,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9687 states. [2024-11-16 03:51:29,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9687 to 8387. [2024-11-16 03:51:29,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8387 states, 8386 states have (on average 1.1366563319818745) internal successors, (9532), 8386 states have internal predecessors, (9532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:29,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8387 states to 8387 states and 9532 transitions. [2024-11-16 03:51:29,316 INFO L78 Accepts]: Start accepts. Automaton has 8387 states and 9532 transitions. Word has length 354 [2024-11-16 03:51:29,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:29,317 INFO L471 AbstractCegarLoop]: Abstraction has 8387 states and 9532 transitions. [2024-11-16 03:51:29,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:29,317 INFO L276 IsEmpty]: Start isEmpty. Operand 8387 states and 9532 transitions. [2024-11-16 03:51:29,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-16 03:51:29,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:29,335 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:29,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:51:29,335 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:29,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:29,336 INFO L85 PathProgramCache]: Analyzing trace with hash 690861569, now seen corresponding path program 1 times [2024-11-16 03:51:29,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:29,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988407050] [2024-11-16 03:51:29,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:29,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:30,207 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 199 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:30,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:30,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988407050] [2024-11-16 03:51:30,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988407050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:51:30,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059942418] [2024-11-16 03:51:30,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:30,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:51:30,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:51:30,210 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:51:30,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 03:51:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:30,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-16 03:51:30,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:51:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 125 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:32,114 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 03:51:32,219 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-16 03:51:32,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059942418] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 03:51:32,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 03:51:32,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 5] total 8 [2024-11-16 03:51:32,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686050404] [2024-11-16 03:51:32,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:32,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:32,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:32,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:32,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 03:51:32,222 INFO L87 Difference]: Start difference. First operand 8387 states and 9532 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:32,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:32,904 INFO L93 Difference]: Finished difference Result 18437 states and 21138 transitions. [2024-11-16 03:51:32,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:32,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 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 386 [2024-11-16 03:51:32,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:32,916 INFO L225 Difference]: With dead ends: 18437 [2024-11-16 03:51:32,916 INFO L226 Difference]: Without dead ends: 10421 [2024-11-16 03:51:32,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 767 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 03:51:32,923 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 146 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:32,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 343 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:51:32,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10421 states. [2024-11-16 03:51:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10421 to 10235. [2024-11-16 03:51:33,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10235 states, 10234 states have (on average 1.1303498143443425) internal successors, (11568), 10234 states have internal predecessors, (11568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:33,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10235 states to 10235 states and 11568 transitions. [2024-11-16 03:51:33,024 INFO L78 Accepts]: Start accepts. Automaton has 10235 states and 11568 transitions. Word has length 386 [2024-11-16 03:51:33,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:33,025 INFO L471 AbstractCegarLoop]: Abstraction has 10235 states and 11568 transitions. [2024-11-16 03:51:33,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:33,025 INFO L276 IsEmpty]: Start isEmpty. Operand 10235 states and 11568 transitions. [2024-11-16 03:51:33,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2024-11-16 03:51:33,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:33,035 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:33,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 03:51:33,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:51:33,240 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:33,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:33,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1647944844, now seen corresponding path program 1 times [2024-11-16 03:51:33,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:33,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011371757] [2024-11-16 03:51:33,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:33,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:33,472 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 03:51:33,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:33,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011371757] [2024-11-16 03:51:33,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011371757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:33,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:33,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:33,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750439282] [2024-11-16 03:51:33,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:33,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:51:33,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:33,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:51:33,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:51:33,474 INFO L87 Difference]: Start difference. First operand 10235 states and 11568 transitions. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:34,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:34,664 INFO L93 Difference]: Finished difference Result 25288 states and 28518 transitions. [2024-11-16 03:51:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:51:34,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 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 439 [2024-11-16 03:51:34,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:34,678 INFO L225 Difference]: With dead ends: 25288 [2024-11-16 03:51:34,678 INFO L226 Difference]: Without dead ends: 15425 [2024-11-16 03:51:34,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:51:34,687 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 190 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:34,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 79 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 03:51:34,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15425 states. [2024-11-16 03:51:34,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15425 to 15425. [2024-11-16 03:51:34,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15425 states, 15424 states have (on average 1.1216286307053942) internal successors, (17300), 15424 states have internal predecessors, (17300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:34,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15425 states to 15425 states and 17300 transitions. [2024-11-16 03:51:34,814 INFO L78 Accepts]: Start accepts. Automaton has 15425 states and 17300 transitions. Word has length 439 [2024-11-16 03:51:34,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:34,815 INFO L471 AbstractCegarLoop]: Abstraction has 15425 states and 17300 transitions. [2024-11-16 03:51:34,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:34,815 INFO L276 IsEmpty]: Start isEmpty. Operand 15425 states and 17300 transitions. [2024-11-16 03:51:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2024-11-16 03:51:34,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:34,829 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:34,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 03:51:34,829 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:34,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:34,830 INFO L85 PathProgramCache]: Analyzing trace with hash -243494488, now seen corresponding path program 1 times [2024-11-16 03:51:34,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:34,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815529511] [2024-11-16 03:51:34,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:34,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:34,993 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 640 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-16 03:51:34,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:34,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815529511] [2024-11-16 03:51:34,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815529511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:34,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:34,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:34,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655919744] [2024-11-16 03:51:34,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:34,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:34,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:34,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:34,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:34,996 INFO L87 Difference]: Start difference. First operand 15425 states and 17300 transitions. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:35,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:35,611 INFO L93 Difference]: Finished difference Result 30473 states and 34403 transitions. [2024-11-16 03:51:35,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:35,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 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 492 [2024-11-16 03:51:35,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:35,628 INFO L225 Difference]: With dead ends: 30473 [2024-11-16 03:51:35,628 INFO L226 Difference]: Without dead ends: 17089 [2024-11-16 03:51:35,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:35,639 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 68 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:35,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 359 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:51:35,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17089 states. [2024-11-16 03:51:35,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17089 to 16534. [2024-11-16 03:51:35,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16534 states, 16533 states have (on average 1.1265952942599649) internal successors, (18626), 16533 states have internal predecessors, (18626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:35,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16534 states to 16534 states and 18626 transitions. [2024-11-16 03:51:35,795 INFO L78 Accepts]: Start accepts. Automaton has 16534 states and 18626 transitions. Word has length 492 [2024-11-16 03:51:35,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:35,795 INFO L471 AbstractCegarLoop]: Abstraction has 16534 states and 18626 transitions. [2024-11-16 03:51:35,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:35,796 INFO L276 IsEmpty]: Start isEmpty. Operand 16534 states and 18626 transitions. [2024-11-16 03:51:35,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2024-11-16 03:51:35,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:35,814 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:35,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 03:51:35,818 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:35,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:35,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1946253390, now seen corresponding path program 1 times [2024-11-16 03:51:35,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:35,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100456593] [2024-11-16 03:51:35,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:35,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:36,779 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 547 proven. 24 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-16 03:51:36,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:36,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100456593] [2024-11-16 03:51:36,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100456593] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:51:36,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186571671] [2024-11-16 03:51:36,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:36,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:51:36,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:51:36,782 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:51:36,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 03:51:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:36,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:51:36,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:51:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 571 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-16 03:51:37,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:51:37,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186571671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:37,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:51:37,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 03:51:37,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762823350] [2024-11-16 03:51:37,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:37,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:37,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:37,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:37,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:51:37,075 INFO L87 Difference]: Start difference. First operand 16534 states and 18626 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:37,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:37,752 INFO L93 Difference]: Finished difference Result 34557 states and 39009 transitions. [2024-11-16 03:51:37,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:37,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 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 527 [2024-11-16 03:51:37,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:37,771 INFO L225 Difference]: With dead ends: 34557 [2024-11-16 03:51:37,771 INFO L226 Difference]: Without dead ends: 20064 [2024-11-16 03:51:37,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 526 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:51:37,781 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 88 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:37,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 68 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:51:37,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20064 states. [2024-11-16 03:51:37,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20064 to 17089. [2024-11-16 03:51:37,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17089 states, 17088 states have (on average 1.127867509363296) internal successors, (19273), 17088 states have internal predecessors, (19273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:37,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17089 states to 17089 states and 19273 transitions. [2024-11-16 03:51:37,952 INFO L78 Accepts]: Start accepts. Automaton has 17089 states and 19273 transitions. Word has length 527 [2024-11-16 03:51:37,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:37,952 INFO L471 AbstractCegarLoop]: Abstraction has 17089 states and 19273 transitions. [2024-11-16 03:51:37,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:37,952 INFO L276 IsEmpty]: Start isEmpty. Operand 17089 states and 19273 transitions. [2024-11-16 03:51:37,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-16 03:51:37,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:37,966 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:37,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 03:51:38,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-16 03:51:38,167 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:38,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:38,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1761308445, now seen corresponding path program 1 times [2024-11-16 03:51:38,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:38,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284962653] [2024-11-16 03:51:38,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:38,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:38,428 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 593 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-16 03:51:38,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:38,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284962653] [2024-11-16 03:51:38,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284962653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:38,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:38,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:38,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482707886] [2024-11-16 03:51:38,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:38,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:38,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:38,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:38,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:38,430 INFO L87 Difference]: Start difference. First operand 17089 states and 19273 transitions. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:39,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:39,048 INFO L93 Difference]: Finished difference Result 37343 states and 42232 transitions. [2024-11-16 03:51:39,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:39,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 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 528 [2024-11-16 03:51:39,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:39,069 INFO L225 Difference]: With dead ends: 37343 [2024-11-16 03:51:39,069 INFO L226 Difference]: Without dead ends: 20626 [2024-11-16 03:51:39,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:39,082 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 142 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:39,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 132 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:51:39,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20626 states. [2024-11-16 03:51:39,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20626 to 20251. [2024-11-16 03:51:39,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20251 states, 20250 states have (on average 1.1198518518518519) internal successors, (22677), 20250 states have internal predecessors, (22677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:39,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20251 states to 20251 states and 22677 transitions. [2024-11-16 03:51:39,481 INFO L78 Accepts]: Start accepts. Automaton has 20251 states and 22677 transitions. Word has length 528 [2024-11-16 03:51:39,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:39,482 INFO L471 AbstractCegarLoop]: Abstraction has 20251 states and 22677 transitions. [2024-11-16 03:51:39,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:39,482 INFO L276 IsEmpty]: Start isEmpty. Operand 20251 states and 22677 transitions. [2024-11-16 03:51:39,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-16 03:51:39,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:39,504 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:39,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 03:51:39,504 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:39,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:39,504 INFO L85 PathProgramCache]: Analyzing trace with hash -529861481, now seen corresponding path program 1 times [2024-11-16 03:51:39,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:39,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089191904] [2024-11-16 03:51:39,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:39,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:39,862 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 626 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-11-16 03:51:39,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:39,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089191904] [2024-11-16 03:51:39,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089191904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:39,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:39,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:39,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260916888] [2024-11-16 03:51:39,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:39,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:39,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:39,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:39,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:39,865 INFO L87 Difference]: Start difference. First operand 20251 states and 22677 transitions. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:40,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:40,676 INFO L93 Difference]: Finished difference Result 44573 states and 49935 transitions. [2024-11-16 03:51:40,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:40,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 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 532 [2024-11-16 03:51:40,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:40,702 INFO L225 Difference]: With dead ends: 44573 [2024-11-16 03:51:40,702 INFO L226 Difference]: Without dead ends: 24694 [2024-11-16 03:51:40,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:40,717 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 132 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:40,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 70 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:51:40,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24694 states. [2024-11-16 03:51:40,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24694 to 23384. [2024-11-16 03:51:40,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23384 states, 23383 states have (on average 1.1145704144036266) internal successors, (26062), 23383 states have internal predecessors, (26062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:40,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23384 states to 23384 states and 26062 transitions. [2024-11-16 03:51:40,946 INFO L78 Accepts]: Start accepts. Automaton has 23384 states and 26062 transitions. Word has length 532 [2024-11-16 03:51:40,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:40,947 INFO L471 AbstractCegarLoop]: Abstraction has 23384 states and 26062 transitions. [2024-11-16 03:51:40,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:40,947 INFO L276 IsEmpty]: Start isEmpty. Operand 23384 states and 26062 transitions. [2024-11-16 03:51:40,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2024-11-16 03:51:40,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:40,963 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:40,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 03:51:40,964 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:40,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:40,964 INFO L85 PathProgramCache]: Analyzing trace with hash -107810788, now seen corresponding path program 1 times [2024-11-16 03:51:40,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:40,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168206658] [2024-11-16 03:51:40,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:40,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:41,847 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 325 proven. 410 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-16 03:51:41,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:41,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168206658] [2024-11-16 03:51:41,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168206658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:51:41,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637082728] [2024-11-16 03:51:41,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:41,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:51:41,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:51:41,850 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:51:41,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 03:51:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:41,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:51:41,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:51:42,341 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 724 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-16 03:51:42,341 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:51:42,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637082728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:42,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:51:42,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 03:51:42,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633580379] [2024-11-16 03:51:42,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:42,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:51:42,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:42,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:51:42,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-16 03:51:42,345 INFO L87 Difference]: Start difference. First operand 23384 states and 26062 transitions. Second operand has 4 states, 4 states have (on average 99.25) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:43,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:43,574 INFO L93 Difference]: Finished difference Result 52521 states and 58532 transitions. [2024-11-16 03:51:43,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:51:43,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 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 538 [2024-11-16 03:51:43,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:43,604 INFO L225 Difference]: With dead ends: 52521 [2024-11-16 03:51:43,604 INFO L226 Difference]: Without dead ends: 30993 [2024-11-16 03:51:43,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-16 03:51:43,620 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 221 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:43,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 106 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 03:51:43,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30993 states. [2024-11-16 03:51:43,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30993 to 22646. [2024-11-16 03:51:43,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22646 states, 22645 states have (on average 1.113976595274895) internal successors, (25226), 22645 states have internal predecessors, (25226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:43,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22646 states to 22646 states and 25226 transitions. [2024-11-16 03:51:43,844 INFO L78 Accepts]: Start accepts. Automaton has 22646 states and 25226 transitions. Word has length 538 [2024-11-16 03:51:43,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:43,845 INFO L471 AbstractCegarLoop]: Abstraction has 22646 states and 25226 transitions. [2024-11-16 03:51:43,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:43,845 INFO L276 IsEmpty]: Start isEmpty. Operand 22646 states and 25226 transitions. [2024-11-16 03:51:43,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2024-11-16 03:51:43,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:43,863 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:43,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 03:51:44,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:51:44,064 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:44,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:44,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1935068987, now seen corresponding path program 1 times [2024-11-16 03:51:44,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:44,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594552392] [2024-11-16 03:51:44,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:44,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:44,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 951 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-16 03:51:44,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:44,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594552392] [2024-11-16 03:51:44,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594552392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:44,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:44,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:44,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179170968] [2024-11-16 03:51:44,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:44,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:44,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:44,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:44,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:44,530 INFO L87 Difference]: Start difference. First operand 22646 states and 25226 transitions. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:45,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:45,152 INFO L93 Difference]: Finished difference Result 44193 states and 49300 transitions. [2024-11-16 03:51:45,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:45,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 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 635 [2024-11-16 03:51:45,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:45,175 INFO L225 Difference]: With dead ends: 44193 [2024-11-16 03:51:45,176 INFO L226 Difference]: Without dead ends: 24143 [2024-11-16 03:51:45,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:45,189 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 142 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:45,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 128 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:51:45,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24143 states. [2024-11-16 03:51:45,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24143 to 22276. [2024-11-16 03:51:45,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22276 states, 22275 states have (on average 1.1137149270482605) internal successors, (24808), 22275 states have internal predecessors, (24808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:45,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22276 states to 22276 states and 24808 transitions. [2024-11-16 03:51:45,408 INFO L78 Accepts]: Start accepts. Automaton has 22276 states and 24808 transitions. Word has length 635 [2024-11-16 03:51:45,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:45,409 INFO L471 AbstractCegarLoop]: Abstraction has 22276 states and 24808 transitions. [2024-11-16 03:51:45,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 22276 states and 24808 transitions. [2024-11-16 03:51:45,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2024-11-16 03:51:45,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:45,425 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:45,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 03:51:45,425 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:45,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:45,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1610100760, now seen corresponding path program 1 times [2024-11-16 03:51:45,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:45,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212598064] [2024-11-16 03:51:45,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:45,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:45,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 651 proven. 0 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2024-11-16 03:51:45,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:45,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212598064] [2024-11-16 03:51:45,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212598064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:45,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:45,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:45,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793516680] [2024-11-16 03:51:45,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:45,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:45,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:45,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:45,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:45,645 INFO L87 Difference]: Start difference. First operand 22276 states and 24808 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:46,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:46,245 INFO L93 Difference]: Finished difference Result 45659 states and 50826 transitions. [2024-11-16 03:51:46,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:46,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 656 [2024-11-16 03:51:46,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:46,268 INFO L225 Difference]: With dead ends: 45659 [2024-11-16 03:51:46,268 INFO L226 Difference]: Without dead ends: 23755 [2024-11-16 03:51:46,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:46,282 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 118 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:46,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 153 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:51:46,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23755 states. [2024-11-16 03:51:46,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23755 to 21896. [2024-11-16 03:51:46,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21896 states, 21895 states have (on average 1.1062799725964831) internal successors, (24222), 21895 states have internal predecessors, (24222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:46,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21896 states to 21896 states and 24222 transitions. [2024-11-16 03:51:46,712 INFO L78 Accepts]: Start accepts. Automaton has 21896 states and 24222 transitions. Word has length 656 [2024-11-16 03:51:46,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:46,712 INFO L471 AbstractCegarLoop]: Abstraction has 21896 states and 24222 transitions. [2024-11-16 03:51:46,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:46,713 INFO L276 IsEmpty]: Start isEmpty. Operand 21896 states and 24222 transitions. [2024-11-16 03:51:46,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2024-11-16 03:51:46,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:46,735 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:46,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 03:51:46,735 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:46,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:46,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1759799938, now seen corresponding path program 1 times [2024-11-16 03:51:46,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:46,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525769736] [2024-11-16 03:51:46,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:46,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:47,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 1161 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-16 03:51:47,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:47,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525769736] [2024-11-16 03:51:47,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525769736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:47,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:47,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 03:51:47,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299330883] [2024-11-16 03:51:47,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:47,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:51:47,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:47,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:51:47,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:51:47,615 INFO L87 Difference]: Start difference. First operand 21896 states and 24222 transitions. Second operand has 4 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:48,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:48,752 INFO L93 Difference]: Finished difference Result 46947 states and 52097 transitions. [2024-11-16 03:51:48,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:51:48,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 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 667 [2024-11-16 03:51:48,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:48,782 INFO L225 Difference]: With dead ends: 46947 [2024-11-16 03:51:48,782 INFO L226 Difference]: Without dead ends: 27832 [2024-11-16 03:51:48,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:51:48,797 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 214 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:48,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 73 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 03:51:48,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27832 states. [2024-11-16 03:51:48,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27832 to 23382. [2024-11-16 03:51:49,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23382 states, 23381 states have (on average 1.1108164749155296) internal successors, (25972), 23381 states have internal predecessors, (25972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23382 states to 23382 states and 25972 transitions. [2024-11-16 03:51:49,027 INFO L78 Accepts]: Start accepts. Automaton has 23382 states and 25972 transitions. Word has length 667 [2024-11-16 03:51:49,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:49,028 INFO L471 AbstractCegarLoop]: Abstraction has 23382 states and 25972 transitions. [2024-11-16 03:51:49,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:49,028 INFO L276 IsEmpty]: Start isEmpty. Operand 23382 states and 25972 transitions. [2024-11-16 03:51:49,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2024-11-16 03:51:49,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:49,043 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:49,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 03:51:49,043 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:49,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:49,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1875746836, now seen corresponding path program 1 times [2024-11-16 03:51:49,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:49,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541791944] [2024-11-16 03:51:49,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:49,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:50,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1369 backedges. 888 proven. 0 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2024-11-16 03:51:50,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:50,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541791944] [2024-11-16 03:51:50,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541791944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:50,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:50,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 03:51:50,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177630881] [2024-11-16 03:51:50,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:50,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 03:51:50,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:50,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 03:51:50,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:51:50,060 INFO L87 Difference]: Start difference. First operand 23382 states and 25972 transitions. Second operand has 7 states, 7 states have (on average 59.57142857142857) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:51,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:51,386 INFO L93 Difference]: Finished difference Result 49359 states and 54792 transitions. [2024-11-16 03:51:51,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 03:51:51,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 59.57142857142857) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 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 690 [2024-11-16 03:51:51,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:51,412 INFO L225 Difference]: With dead ends: 49359 [2024-11-16 03:51:51,412 INFO L226 Difference]: Without dead ends: 26349 [2024-11-16 03:51:51,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-16 03:51:51,427 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 251 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 2011 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:51,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 243 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2011 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 03:51:51,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26349 states. [2024-11-16 03:51:51,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26349 to 26343. [2024-11-16 03:51:51,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26343 states, 26342 states have (on average 1.107888543011161) internal successors, (29184), 26342 states have internal predecessors, (29184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:51,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26343 states to 26343 states and 29184 transitions. [2024-11-16 03:51:51,667 INFO L78 Accepts]: Start accepts. Automaton has 26343 states and 29184 transitions. Word has length 690 [2024-11-16 03:51:51,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:51,667 INFO L471 AbstractCegarLoop]: Abstraction has 26343 states and 29184 transitions. [2024-11-16 03:51:51,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.57142857142857) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:51,667 INFO L276 IsEmpty]: Start isEmpty. Operand 26343 states and 29184 transitions. [2024-11-16 03:51:51,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-16 03:51:51,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:51,684 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:51,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 03:51:51,684 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:51,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:51,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1543610099, now seen corresponding path program 1 times [2024-11-16 03:51:51,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:51,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949928648] [2024-11-16 03:51:51,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:51,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:52,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1399 backedges. 910 proven. 8 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2024-11-16 03:51:52,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:52,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949928648] [2024-11-16 03:51:52,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949928648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:51:52,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182065736] [2024-11-16 03:51:52,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:52,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:51:52,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:51:52,714 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:51:52,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 03:51:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:52,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 03:51:52,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:51:53,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1399 backedges. 796 proven. 122 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2024-11-16 03:51:53,694 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 03:51:57,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1399 backedges. 796 proven. 122 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2024-11-16 03:51:57,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182065736] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 03:51:57,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 03:51:57,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2024-11-16 03:51:57,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311295194] [2024-11-16 03:51:57,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 03:51:57,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 03:51:57,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:57,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 03:51:57,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-16 03:51:57,288 INFO L87 Difference]: Start difference. First operand 26343 states and 29184 transitions. Second operand has 11 states, 11 states have (on average 90.81818181818181) internal successors, (999), 10 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:01,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:01,061 INFO L93 Difference]: Finished difference Result 62880 states and 69454 transitions. [2024-11-16 03:52:01,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-16 03:52:01,061 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 90.81818181818181) internal successors, (999), 10 states have internal predecessors, (999), 0 states have call successors, (0), 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 700 [2024-11-16 03:52:01,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:01,093 INFO L225 Difference]: With dead ends: 62880 [2024-11-16 03:52:01,093 INFO L226 Difference]: Without dead ends: 36166 [2024-11-16 03:52:01,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1421 GetRequests, 1397 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=214, Invalid=436, Unknown=0, NotChecked=0, Total=650 [2024-11-16 03:52:01,111 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 1250 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 4471 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 5057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 4471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:01,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 234 Invalid, 5057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 4471 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 03:52:01,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36166 states. [2024-11-16 03:52:01,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36166 to 22450. [2024-11-16 03:52:01,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22450 states, 22449 states have (on average 1.0728762973851842) internal successors, (24085), 22449 states have internal predecessors, (24085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:01,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22450 states to 22450 states and 24085 transitions. [2024-11-16 03:52:01,357 INFO L78 Accepts]: Start accepts. Automaton has 22450 states and 24085 transitions. Word has length 700 [2024-11-16 03:52:01,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:01,357 INFO L471 AbstractCegarLoop]: Abstraction has 22450 states and 24085 transitions. [2024-11-16 03:52:01,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.81818181818181) internal successors, (999), 10 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:01,358 INFO L276 IsEmpty]: Start isEmpty. Operand 22450 states and 24085 transitions. [2024-11-16 03:52:01,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 716 [2024-11-16 03:52:01,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:01,371 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:01,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-16 03:52:01,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:52:01,572 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:01,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:01,573 INFO L85 PathProgramCache]: Analyzing trace with hash -183283732, now seen corresponding path program 1 times [2024-11-16 03:52:01,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:01,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289109135] [2024-11-16 03:52:01,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:01,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:02,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1556 backedges. 1113 proven. 64 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-11-16 03:52:02,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:02,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289109135] [2024-11-16 03:52:02,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289109135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:52:02,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649737481] [2024-11-16 03:52:02,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:02,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:52:02,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:52:02,159 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:52:02,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 03:52:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:02,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:52:02,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:52:02,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1556 backedges. 1177 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-11-16 03:52:02,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:52:02,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649737481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:02,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:52:02,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:52:02,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747799941] [2024-11-16 03:52:02,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:02,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:02,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:02,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:02,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:52:02,529 INFO L87 Difference]: Start difference. First operand 22450 states and 24085 transitions. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:03,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:03,008 INFO L93 Difference]: Finished difference Result 45278 states and 48566 transitions. [2024-11-16 03:52:03,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:03,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 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 715 [2024-11-16 03:52:03,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:03,033 INFO L225 Difference]: With dead ends: 45278 [2024-11-16 03:52:03,033 INFO L226 Difference]: Without dead ends: 25052 [2024-11-16 03:52:03,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 718 GetRequests, 714 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:52:03,048 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 77 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:03,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 344 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:52:03,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25052 states. [2024-11-16 03:52:03,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25052 to 22635. [2024-11-16 03:52:03,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22635 states, 22634 states have (on average 1.0709110188212423) internal successors, (24239), 22634 states have internal predecessors, (24239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:03,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22635 states to 22635 states and 24239 transitions. [2024-11-16 03:52:03,255 INFO L78 Accepts]: Start accepts. Automaton has 22635 states and 24239 transitions. Word has length 715 [2024-11-16 03:52:03,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:03,255 INFO L471 AbstractCegarLoop]: Abstraction has 22635 states and 24239 transitions. [2024-11-16 03:52:03,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:03,256 INFO L276 IsEmpty]: Start isEmpty. Operand 22635 states and 24239 transitions. [2024-11-16 03:52:03,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2024-11-16 03:52:03,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:03,269 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:03,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-16 03:52:03,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:52:03,471 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:03,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:03,471 INFO L85 PathProgramCache]: Analyzing trace with hash 75477369, now seen corresponding path program 1 times [2024-11-16 03:52:03,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:03,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150131541] [2024-11-16 03:52:03,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:03,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1803 backedges. 1291 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-16 03:52:03,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:03,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150131541] [2024-11-16 03:52:03,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150131541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:03,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:03,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:03,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628337331] [2024-11-16 03:52:03,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:03,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:03,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:03,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:03,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:03,945 INFO L87 Difference]: Start difference. First operand 22635 states and 24239 transitions. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:04,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:04,501 INFO L93 Difference]: Finished difference Result 43794 states and 46920 transitions. [2024-11-16 03:52:04,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:04,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 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 745 [2024-11-16 03:52:04,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:04,525 INFO L225 Difference]: With dead ends: 43794 [2024-11-16 03:52:04,525 INFO L226 Difference]: Without dead ends: 23753 [2024-11-16 03:52:04,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:04,538 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 126 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:04,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 127 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:52:04,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23753 states. [2024-11-16 03:52:04,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23753 to 22450. [2024-11-16 03:52:04,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22450 states, 22449 states have (on average 1.0707381175108022) internal successors, (24037), 22449 states have internal predecessors, (24037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:04,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22450 states to 22450 states and 24037 transitions. [2024-11-16 03:52:04,767 INFO L78 Accepts]: Start accepts. Automaton has 22450 states and 24037 transitions. Word has length 745 [2024-11-16 03:52:04,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:04,768 INFO L471 AbstractCegarLoop]: Abstraction has 22450 states and 24037 transitions. [2024-11-16 03:52:04,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:04,768 INFO L276 IsEmpty]: Start isEmpty. Operand 22450 states and 24037 transitions. [2024-11-16 03:52:04,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-16 03:52:04,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:04,782 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:04,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 03:52:04,783 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:04,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:04,783 INFO L85 PathProgramCache]: Analyzing trace with hash -320326967, now seen corresponding path program 1 times [2024-11-16 03:52:04,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:04,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530263504] [2024-11-16 03:52:04,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:04,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:05,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 1391 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2024-11-16 03:52:05,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:05,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530263504] [2024-11-16 03:52:05,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530263504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:05,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:05,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:05,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289359473] [2024-11-16 03:52:05,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:05,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:05,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:05,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:05,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:05,251 INFO L87 Difference]: Start difference. First operand 22450 states and 24037 transitions. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:05,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:05,870 INFO L93 Difference]: Finished difference Result 40820 states and 43686 transitions. [2024-11-16 03:52:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:05,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 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 779 [2024-11-16 03:52:05,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:05,890 INFO L225 Difference]: With dead ends: 40820 [2024-11-16 03:52:05,890 INFO L226 Difference]: Without dead ends: 18557 [2024-11-16 03:52:05,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:05,903 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 71 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:05,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 274 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:52:05,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18557 states. [2024-11-16 03:52:06,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18557 to 14666. [2024-11-16 03:52:06,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14666 states, 14665 states have (on average 1.067507671326287) internal successors, (15655), 14665 states have internal predecessors, (15655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14666 states to 14666 states and 15655 transitions. [2024-11-16 03:52:06,065 INFO L78 Accepts]: Start accepts. Automaton has 14666 states and 15655 transitions. Word has length 779 [2024-11-16 03:52:06,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:06,065 INFO L471 AbstractCegarLoop]: Abstraction has 14666 states and 15655 transitions. [2024-11-16 03:52:06,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:06,065 INFO L276 IsEmpty]: Start isEmpty. Operand 14666 states and 15655 transitions. [2024-11-16 03:52:06,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2024-11-16 03:52:06,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:06,077 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:06,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 03:52:06,077 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:06,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:06,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1694063717, now seen corresponding path program 1 times [2024-11-16 03:52:06,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:06,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586077949] [2024-11-16 03:52:06,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:06,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:06,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2468 backedges. 1649 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2024-11-16 03:52:06,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:06,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586077949] [2024-11-16 03:52:06,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586077949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:06,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:06,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:06,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830390887] [2024-11-16 03:52:06,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:06,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:06,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:06,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:06,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:06,324 INFO L87 Difference]: Start difference. First operand 14666 states and 15655 transitions. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:06,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:06,844 INFO L93 Difference]: Finished difference Result 28963 states and 30965 transitions. [2024-11-16 03:52:06,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:06,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 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 840 [2024-11-16 03:52:06,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:06,861 INFO L225 Difference]: With dead ends: 28963 [2024-11-16 03:52:06,861 INFO L226 Difference]: Without dead ends: 15964 [2024-11-16 03:52:06,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:06,870 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 113 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:06,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 341 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:52:06,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15964 states. [2024-11-16 03:52:06,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15964 to 12631. [2024-11-16 03:52:06,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12631 states, 12630 states have (on average 1.0684085510688837) internal successors, (13494), 12630 states have internal predecessors, (13494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:06,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12631 states to 12631 states and 13494 transitions. [2024-11-16 03:52:07,000 INFO L78 Accepts]: Start accepts. Automaton has 12631 states and 13494 transitions. Word has length 840 [2024-11-16 03:52:07,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:07,000 INFO L471 AbstractCegarLoop]: Abstraction has 12631 states and 13494 transitions. [2024-11-16 03:52:07,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 12631 states and 13494 transitions. [2024-11-16 03:52:07,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 846 [2024-11-16 03:52:07,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:07,010 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:07,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 03:52:07,010 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:07,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:07,010 INFO L85 PathProgramCache]: Analyzing trace with hash 452787733, now seen corresponding path program 1 times [2024-11-16 03:52:07,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:07,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107078691] [2024-11-16 03:52:07,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:07,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:07,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2023 backedges. 1277 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2024-11-16 03:52:07,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:07,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107078691] [2024-11-16 03:52:07,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107078691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:07,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:07,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 03:52:07,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634453628] [2024-11-16 03:52:07,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:07,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:52:07,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:07,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:52:07,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:07,948 INFO L87 Difference]: Start difference. First operand 12631 states and 13494 transitions. Second operand has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:08,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:08,852 INFO L93 Difference]: Finished difference Result 27120 states and 29004 transitions. [2024-11-16 03:52:08,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:52:08,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 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 845 [2024-11-16 03:52:08,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:08,881 INFO L225 Difference]: With dead ends: 27120 [2024-11-16 03:52:08,881 INFO L226 Difference]: Without dead ends: 14676 [2024-11-16 03:52:08,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:08,891 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 232 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:08,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 84 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:52:08,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14676 states. [2024-11-16 03:52:08,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14676 to 13190. [2024-11-16 03:52:09,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13190 states, 13189 states have (on average 1.0650542118432027) internal successors, (14047), 13189 states have internal predecessors, (14047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:09,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13190 states to 13190 states and 14047 transitions. [2024-11-16 03:52:09,019 INFO L78 Accepts]: Start accepts. Automaton has 13190 states and 14047 transitions. Word has length 845 [2024-11-16 03:52:09,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:09,019 INFO L471 AbstractCegarLoop]: Abstraction has 13190 states and 14047 transitions. [2024-11-16 03:52:09,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:09,020 INFO L276 IsEmpty]: Start isEmpty. Operand 13190 states and 14047 transitions. [2024-11-16 03:52:09,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 910 [2024-11-16 03:52:09,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:09,029 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:09,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 03:52:09,030 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:09,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:09,030 INFO L85 PathProgramCache]: Analyzing trace with hash -801555559, now seen corresponding path program 1 times [2024-11-16 03:52:09,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:09,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852627171] [2024-11-16 03:52:09,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:09,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:09,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2282 backedges. 1155 proven. 0 refuted. 0 times theorem prover too weak. 1127 trivial. 0 not checked. [2024-11-16 03:52:09,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:09,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852627171] [2024-11-16 03:52:09,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852627171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:09,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:09,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:52:09,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362393271] [2024-11-16 03:52:09,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:09,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:09,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:09,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:09,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:09,306 INFO L87 Difference]: Start difference. First operand 13190 states and 14047 transitions. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 2 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:09,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:09,644 INFO L93 Difference]: Finished difference Result 26188 states and 27896 transitions. [2024-11-16 03:52:09,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:09,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 2 states have internal predecessors, (342), 0 states have call successors, (0), 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 909 [2024-11-16 03:52:09,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:09,656 INFO L225 Difference]: With dead ends: 26188 [2024-11-16 03:52:09,657 INFO L226 Difference]: Without dead ends: 13185 [2024-11-16 03:52:09,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:09,666 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 161 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:09,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 36 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:52:09,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13185 states. [2024-11-16 03:52:09,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13185 to 13185. [2024-11-16 03:52:09,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13185 states, 13184 states have (on average 1.0646996359223302) internal successors, (14037), 13184 states have internal predecessors, (14037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:09,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13185 states to 13185 states and 14037 transitions. [2024-11-16 03:52:09,783 INFO L78 Accepts]: Start accepts. Automaton has 13185 states and 14037 transitions. Word has length 909 [2024-11-16 03:52:09,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:09,784 INFO L471 AbstractCegarLoop]: Abstraction has 13185 states and 14037 transitions. [2024-11-16 03:52:09,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 2 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:09,784 INFO L276 IsEmpty]: Start isEmpty. Operand 13185 states and 14037 transitions. [2024-11-16 03:52:09,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2024-11-16 03:52:09,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:09,794 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:09,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 03:52:09,794 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:09,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:09,795 INFO L85 PathProgramCache]: Analyzing trace with hash 94175921, now seen corresponding path program 1 times [2024-11-16 03:52:09,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:09,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343671815] [2024-11-16 03:52:09,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:09,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:10,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2298 backedges. 1624 proven. 0 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2024-11-16 03:52:10,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:10,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343671815] [2024-11-16 03:52:10,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343671815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:10,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:10,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:10,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019380591] [2024-11-16 03:52:10,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:10,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:10,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:10,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:10,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:10,344 INFO L87 Difference]: Start difference. First operand 13185 states and 14037 transitions. Second operand has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:10,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:10,928 INFO L93 Difference]: Finished difference Result 27851 states and 29629 transitions. [2024-11-16 03:52:10,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:10,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 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 925 [2024-11-16 03:52:10,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:10,943 INFO L225 Difference]: With dead ends: 27851 [2024-11-16 03:52:10,944 INFO L226 Difference]: Without dead ends: 14853 [2024-11-16 03:52:10,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:10,953 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 105 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:10,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 61 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:52:10,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14853 states. [2024-11-16 03:52:11,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14853 to 12445. [2024-11-16 03:52:11,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12445 states, 12444 states have (on average 1.0650916104146577) internal successors, (13254), 12444 states have internal predecessors, (13254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:11,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12445 states to 12445 states and 13254 transitions. [2024-11-16 03:52:11,080 INFO L78 Accepts]: Start accepts. Automaton has 12445 states and 13254 transitions. Word has length 925 [2024-11-16 03:52:11,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:11,081 INFO L471 AbstractCegarLoop]: Abstraction has 12445 states and 13254 transitions. [2024-11-16 03:52:11,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:11,081 INFO L276 IsEmpty]: Start isEmpty. Operand 12445 states and 13254 transitions. [2024-11-16 03:52:11,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1047 [2024-11-16 03:52:11,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:11,092 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:11,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 03:52:11,092 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:11,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:11,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1495213942, now seen corresponding path program 1 times [2024-11-16 03:52:11,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:11,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976978384] [2024-11-16 03:52:11,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:11,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:11,578 INFO L134 CoverageAnalysis]: Checked inductivity of 3342 backedges. 1743 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2024-11-16 03:52:11,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:11,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976978384] [2024-11-16 03:52:11,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976978384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:11,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:11,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:11,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985758302] [2024-11-16 03:52:11,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:11,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:11,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:11,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:11,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:11,580 INFO L87 Difference]: Start difference. First operand 12445 states and 13254 transitions. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:12,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:12,100 INFO L93 Difference]: Finished difference Result 24328 states and 25795 transitions. [2024-11-16 03:52:12,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:12,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 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 1046 [2024-11-16 03:52:12,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:12,112 INFO L225 Difference]: With dead ends: 24328 [2024-11-16 03:52:12,112 INFO L226 Difference]: Without dead ends: 12070 [2024-11-16 03:52:12,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:12,119 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 45 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:12,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 306 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:52:12,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12070 states. [2024-11-16 03:52:12,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12070 to 10030. [2024-11-16 03:52:12,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10030 states, 10029 states have (on average 1.0513510818625984) internal successors, (10544), 10029 states have internal predecessors, (10544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:12,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10030 states to 10030 states and 10544 transitions. [2024-11-16 03:52:12,216 INFO L78 Accepts]: Start accepts. Automaton has 10030 states and 10544 transitions. Word has length 1046 [2024-11-16 03:52:12,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:12,217 INFO L471 AbstractCegarLoop]: Abstraction has 10030 states and 10544 transitions. [2024-11-16 03:52:12,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:12,217 INFO L276 IsEmpty]: Start isEmpty. Operand 10030 states and 10544 transitions. [2024-11-16 03:52:12,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1105 [2024-11-16 03:52:12,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:12,228 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:12,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-16 03:52:12,228 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:12,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:12,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1069110513, now seen corresponding path program 1 times [2024-11-16 03:52:12,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:12,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733318747] [2024-11-16 03:52:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:12,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:12,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3676 backedges. 1790 proven. 0 refuted. 0 times theorem prover too weak. 1886 trivial. 0 not checked. [2024-11-16 03:52:12,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:12,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733318747] [2024-11-16 03:52:12,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733318747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:12,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:12,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:52:12,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649887104] [2024-11-16 03:52:12,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:12,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:12,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:12,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:12,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:12,621 INFO L87 Difference]: Start difference. First operand 10030 states and 10544 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 2 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:12,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:12,927 INFO L93 Difference]: Finished difference Result 19871 states and 20893 transitions. [2024-11-16 03:52:12,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:12,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 2 states have internal predecessors, (319), 0 states have call successors, (0), 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 1104 [2024-11-16 03:52:12,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:12,936 INFO L225 Difference]: With dead ends: 19871 [2024-11-16 03:52:12,936 INFO L226 Difference]: Without dead ends: 10028 [2024-11-16 03:52:12,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:12,942 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 118 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:12,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 30 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:52:12,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10028 states. [2024-11-16 03:52:13,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10028 to 10027. [2024-11-16 03:52:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10027 states, 10026 states have (on average 1.0511669658886893) internal successors, (10539), 10026 states have internal predecessors, (10539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:13,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10027 states to 10027 states and 10539 transitions. [2024-11-16 03:52:13,031 INFO L78 Accepts]: Start accepts. Automaton has 10027 states and 10539 transitions. Word has length 1104 [2024-11-16 03:52:13,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:13,031 INFO L471 AbstractCegarLoop]: Abstraction has 10027 states and 10539 transitions. [2024-11-16 03:52:13,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 2 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:13,032 INFO L276 IsEmpty]: Start isEmpty. Operand 10027 states and 10539 transitions. [2024-11-16 03:52:13,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1199 [2024-11-16 03:52:13,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:13,043 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:13,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-16 03:52:13,043 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:13,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:13,044 INFO L85 PathProgramCache]: Analyzing trace with hash 225249371, now seen corresponding path program 1 times [2024-11-16 03:52:13,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:13,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947196398] [2024-11-16 03:52:13,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:13,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:14,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4477 backedges. 3202 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2024-11-16 03:52:14,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:14,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947196398] [2024-11-16 03:52:14,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947196398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:14,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:14,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 03:52:14,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606468480] [2024-11-16 03:52:14,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:14,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:52:14,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:14,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:52:14,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:14,040 INFO L87 Difference]: Start difference. First operand 10027 states and 10539 transitions. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:14,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:14,809 INFO L93 Difference]: Finished difference Result 22651 states and 23772 transitions. [2024-11-16 03:52:14,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:52:14,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 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 1198 [2024-11-16 03:52:14,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:14,821 INFO L225 Difference]: With dead ends: 22651 [2024-11-16 03:52:14,821 INFO L226 Difference]: Without dead ends: 12071 [2024-11-16 03:52:14,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:14,828 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 224 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:14,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 58 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:52:14,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12071 states. [2024-11-16 03:52:14,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12071 to 8547. [2024-11-16 03:52:14,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8547 states, 8546 states have (on average 1.047156564474608) internal successors, (8949), 8546 states have internal predecessors, (8949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:14,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8547 states to 8547 states and 8949 transitions. [2024-11-16 03:52:14,911 INFO L78 Accepts]: Start accepts. Automaton has 8547 states and 8949 transitions. Word has length 1198 [2024-11-16 03:52:14,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:14,912 INFO L471 AbstractCegarLoop]: Abstraction has 8547 states and 8949 transitions. [2024-11-16 03:52:14,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:14,912 INFO L276 IsEmpty]: Start isEmpty. Operand 8547 states and 8949 transitions. [2024-11-16 03:52:14,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1255 [2024-11-16 03:52:14,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:14,922 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:14,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-16 03:52:14,922 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:14,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:14,923 INFO L85 PathProgramCache]: Analyzing trace with hash 988831871, now seen corresponding path program 1 times [2024-11-16 03:52:14,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:14,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793901011] [2024-11-16 03:52:14,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:14,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:15,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4669 backedges. 3288 proven. 0 refuted. 0 times theorem prover too weak. 1381 trivial. 0 not checked. [2024-11-16 03:52:15,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:15,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793901011] [2024-11-16 03:52:15,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793901011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:15,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:15,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 03:52:15,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347315168] [2024-11-16 03:52:15,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:15,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:52:15,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:15,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:52:15,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:15,918 INFO L87 Difference]: Start difference. First operand 8547 states and 8949 transitions. Second operand has 4 states, 4 states have (on average 132.75) internal successors, (531), 4 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:16,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:16,581 INFO L93 Difference]: Finished difference Result 14677 states and 15345 transitions. [2024-11-16 03:52:16,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:52:16,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 132.75) internal successors, (531), 4 states have internal predecessors, (531), 0 states have call successors, (0), 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 1254 [2024-11-16 03:52:16,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:16,583 INFO L225 Difference]: With dead ends: 14677 [2024-11-16 03:52:16,583 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:52:16,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:16,589 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 214 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:16,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 36 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:52:16,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:52:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:52:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:16,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:52:16,591 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1254 [2024-11-16 03:52:16,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:16,591 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:52:16,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.75) internal successors, (531), 4 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:16,591 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:52:16,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:52:16,593 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:52:16,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-16 03:52:16,596 INFO L407 BasicCegarLoop]: Path program 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] [2024-11-16 03:52:16,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:52:24,230 WARN L286 SmtUtils]: Spent 7.63s on a formula simplification. DAG size of input: 760 DAG size of output: 903 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-16 03:52:27,287 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:52:27,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:52:27 BoogieIcfgContainer [2024-11-16 03:52:27,297 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:52:27,298 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:52:27,298 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:52:27,298 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:52:27,299 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:51:12" (3/4) ... [2024-11-16 03:52:27,300 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:52:27,314 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 03:52:27,315 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 03:52:27,316 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:52:27,317 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:52:27,442 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:52:27,442 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:52:27,442 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:52:27,444 INFO L158 Benchmark]: Toolchain (without parser) took 77189.52ms. Allocated memory was 144.7MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 71.9MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-11-16 03:52:27,444 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 144.7MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:52:27,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.55ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 71.7MB in the beginning and 126.1MB in the end (delta: -54.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2024-11-16 03:52:27,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.51ms. Allocated memory is still 201.3MB. Free memory was 126.1MB in the beginning and 109.1MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 03:52:27,446 INFO L158 Benchmark]: Boogie Preprocessor took 210.42ms. Allocated memory is still 201.3MB. Free memory was 109.1MB in the beginning and 148.3MB in the end (delta: -39.2MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-11-16 03:52:27,446 INFO L158 Benchmark]: IcfgBuilder took 1347.26ms. Allocated memory is still 201.3MB. Free memory was 148.3MB in the beginning and 80.4MB in the end (delta: 67.9MB). Peak memory consumption was 105.6MB. Max. memory is 16.1GB. [2024-11-16 03:52:27,446 INFO L158 Benchmark]: TraceAbstraction took 74790.44ms. Allocated memory was 201.3MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 79.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-11-16 03:52:27,446 INFO L158 Benchmark]: Witness Printer took 144.16ms. Allocated memory is still 3.1GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 03:52:27,447 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 144.7MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 577.55ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 71.7MB in the beginning and 126.1MB in the end (delta: -54.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.51ms. Allocated memory is still 201.3MB. Free memory was 126.1MB in the beginning and 109.1MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 210.42ms. Allocated memory is still 201.3MB. Free memory was 109.1MB in the beginning and 148.3MB in the end (delta: -39.2MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * IcfgBuilder took 1347.26ms. Allocated memory is still 201.3MB. Free memory was 148.3MB in the beginning and 80.4MB in the end (delta: 67.9MB). Peak memory consumption was 105.6MB. Max. memory is 16.1GB. * TraceAbstraction took 74790.44ms. Allocated memory was 201.3MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 79.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 144.16ms. Allocated memory is still 3.1GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 202]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 286 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.0s, OverallIterations: 36, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 29.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6224 SdHoareTripleChecker+Valid, 25.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6224 mSDsluCounter, 6902 SdHoareTripleChecker+Invalid, 21.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1106 mSDsCounter, 3735 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27602 IncrementalHoareTripleChecker+Invalid, 31337 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3735 mSolverCounterUnsat, 5796 mSDtfsCounter, 27602 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4685 GetRequests, 4586 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26343occurred in iteration=24, InterpolantAutomatonStates: 136, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.1s AutomataMinimizationTime, 36 MinimizatonAttempts, 58910 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 23.1s InterpolantComputationTime, 23749 NumberOfCodeBlocks, 23749 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 24790 ConstructedInterpolants, 0 QuantifiedInterpolants, 74893 SizeOfPredicates, 6 NumberOfNonLiveVariables, 4503 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 45 InterpolantComputations, 35 PerfectInterpolantSequences, 50367/51442 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:52:27,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE