./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label38.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem15_label38.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 30591791300521640fbd37a0a7b1d6b8314227143a2e8306b493af7e281cc2b1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:42:58,890 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:42:58,968 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:42:58,973 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:42:58,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:42:59,007 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:42:59,008 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:42:59,008 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:42:59,009 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:42:59,009 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:42:59,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:42:59,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:42:59,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:42:59,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:42:59,016 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:42:59,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:42:59,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:42:59,017 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:42:59,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:42:59,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:42:59,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:42:59,020 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:42:59,020 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:42:59,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:42:59,021 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:42:59,021 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:42:59,022 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:42:59,022 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:42:59,022 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:42:59,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:42:59,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:42:59,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:42:59,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:42:59,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:42:59,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:42:59,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:42:59,025 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:42:59,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:42:59,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:42:59,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:42:59,026 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:42:59,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:42:59,027 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30591791300521640fbd37a0a7b1d6b8314227143a2e8306b493af7e281cc2b1 [2024-11-09 19:42:59,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:42:59,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:42:59,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:42:59,350 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:42:59,351 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:42:59,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label38.c [2024-11-09 19:43:00,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:43:01,289 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:43:01,290 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label38.c [2024-11-09 19:43:01,318 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18dac8f74/1a2eb67f6bc2426793e51a7562edc86e/FLAG9fd350bf4 [2024-11-09 19:43:01,335 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18dac8f74/1a2eb67f6bc2426793e51a7562edc86e [2024-11-09 19:43:01,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:43:01,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:43:01,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:43:01,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:43:01,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:43:01,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:43:01" (1/1) ... [2024-11-09 19:43:01,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689f3d3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:01, skipping insertion in model container [2024-11-09 19:43:01,354 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:43:01" (1/1) ... [2024-11-09 19:43:01,421 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:43:01,711 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/Problem15_label38.c[3800,3813] [2024-11-09 19:43:02,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:43:02,133 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:43:02,161 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/Problem15_label38.c[3800,3813] [2024-11-09 19:43:02,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:43:02,364 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:43:02,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02 WrapperNode [2024-11-09 19:43:02,366 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:43:02,367 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:43:02,367 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:43:02,367 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:43:02,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02" (1/1) ... [2024-11-09 19:43:02,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02" (1/1) ... [2024-11-09 19:43:02,569 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-09 19:43:02,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:43:02,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:43:02,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:43:02,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:43:02,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02" (1/1) ... [2024-11-09 19:43:02,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02" (1/1) ... [2024-11-09 19:43:02,600 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02" (1/1) ... [2024-11-09 19:43:02,747 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]. [2024-11-09 19:43:02,751 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02" (1/1) ... [2024-11-09 19:43:02,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02" (1/1) ... [2024-11-09 19:43:02,937 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02" (1/1) ... [2024-11-09 19:43:02,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02" (1/1) ... [2024-11-09 19:43:02,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02" (1/1) ... [2024-11-09 19:43:02,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02" (1/1) ... [2024-11-09 19:43:03,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:43:03,028 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:43:03,028 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:43:03,028 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:43:03,029 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02" (1/1) ... [2024-11-09 19:43:03,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:43:03,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:43:03,072 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) [2024-11-09 19:43:03,075 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 [2024-11-09 19:43:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:43:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:43:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:43:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:43:03,199 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:43:03,201 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:43:06,085 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665: havoc calculate_output_#t~ret7#1; [2024-11-09 19:43:06,254 INFO L? ?]: Removed 697 outVars from TransFormulas that were not future-live. [2024-11-09 19:43:06,255 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:43:06,288 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:43:06,290 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:43:06,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:43:06 BoogieIcfgContainer [2024-11-09 19:43:06,291 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:43:06,293 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:43:06,293 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:43:06,298 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:43:06,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:43:01" (1/3) ... [2024-11-09 19:43:06,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e641ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:43:06, skipping insertion in model container [2024-11-09 19:43:06,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:43:02" (2/3) ... [2024-11-09 19:43:06,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e641ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:43:06, skipping insertion in model container [2024-11-09 19:43:06,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:43:06" (3/3) ... [2024-11-09 19:43:06,304 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label38.c [2024-11-09 19:43:06,321 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:43:06,321 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:43:06,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:43:06,414 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;@6686a3dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:43:06,414 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:43:06,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 427 states, 425 states have (on average 2.3176470588235296) internal successors, (985), 426 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:06,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 19:43:06,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:06,433 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] [2024-11-09 19:43:06,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:06,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:06,440 INFO L85 PathProgramCache]: Analyzing trace with hash -966435244, now seen corresponding path program 1 times [2024-11-09 19:43:06,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:06,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847225971] [2024-11-09 19:43:06,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:06,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:06,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:43:06,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:06,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847225971] [2024-11-09 19:43:06,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847225971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:06,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:06,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:43:06,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489222088] [2024-11-09 19:43:06,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:06,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:06,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:06,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:06,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:06,819 INFO L87 Difference]: Start difference. First operand has 427 states, 425 states have (on average 2.3176470588235296) internal successors, (985), 426 states have internal predecessors, (985), 0 states have call successors, (0), 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 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:09,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:09,447 INFO L93 Difference]: Finished difference Result 1160 states and 2808 transitions. [2024-11-09 19:43:09,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:09,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2024-11-09 19:43:09,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:09,477 INFO L225 Difference]: With dead ends: 1160 [2024-11-09 19:43:09,478 INFO L226 Difference]: Without dead ends: 668 [2024-11-09 19:43:09,485 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 [2024-11-09 19:43:09,488 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 523 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:09,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 388 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 19:43:09,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-09 19:43:09,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 666. [2024-11-09 19:43:09,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 665 states have (on average 2.177443609022556) internal successors, (1448), 665 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:09,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 1448 transitions. [2024-11-09 19:43:09,564 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 1448 transitions. Word has length 32 [2024-11-09 19:43:09,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:09,564 INFO L471 AbstractCegarLoop]: Abstraction has 666 states and 1448 transitions. [2024-11-09 19:43:09,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 1448 transitions. [2024-11-09 19:43:09,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 19:43:09,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:09,567 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:09,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:43:09,568 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:09,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:09,569 INFO L85 PathProgramCache]: Analyzing trace with hash 929540654, now seen corresponding path program 1 times [2024-11-09 19:43:09,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:09,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536529130] [2024-11-09 19:43:09,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:09,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:09,969 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:43:09,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:09,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536529130] [2024-11-09 19:43:09,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536529130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:09,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:09,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:43:09,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40283772] [2024-11-09 19:43:09,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:09,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:09,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:09,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:09,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:09,973 INFO L87 Difference]: Start difference. First operand 666 states and 1448 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:11,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:11,862 INFO L93 Difference]: Finished difference Result 1631 states and 3482 transitions. [2024-11-09 19:43:11,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:11,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-09 19:43:11,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:11,867 INFO L225 Difference]: With dead ends: 1631 [2024-11-09 19:43:11,867 INFO L226 Difference]: Without dead ends: 967 [2024-11-09 19:43:11,869 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 [2024-11-09 19:43:11,870 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 469 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:11,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 341 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:43:11,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2024-11-09 19:43:11,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 967. [2024-11-09 19:43:11,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 966 states have (on average 2.0817805383022776) internal successors, (2011), 966 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:11,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 2011 transitions. [2024-11-09 19:43:11,907 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 2011 transitions. Word has length 98 [2024-11-09 19:43:11,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:11,907 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 2011 transitions. [2024-11-09 19:43:11,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:11,908 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 2011 transitions. [2024-11-09 19:43:11,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 19:43:11,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:11,910 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:11,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:43:11,910 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:11,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:11,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1082683773, now seen corresponding path program 1 times [2024-11-09 19:43:11,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:11,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867939690] [2024-11-09 19:43:11,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:11,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:12,119 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:43:12,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:12,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867939690] [2024-11-09 19:43:12,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867939690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:12,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:12,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:43:12,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203783326] [2024-11-09 19:43:12,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:12,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:12,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:12,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:12,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:12,125 INFO L87 Difference]: Start difference. First operand 967 states and 2011 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:14,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:14,126 INFO L93 Difference]: Finished difference Result 2238 states and 4819 transitions. [2024-11-09 19:43:14,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:14,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-09 19:43:14,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:14,133 INFO L225 Difference]: With dead ends: 2238 [2024-11-09 19:43:14,133 INFO L226 Difference]: Without dead ends: 1573 [2024-11-09 19:43:14,134 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 [2024-11-09 19:43:14,135 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 488 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:14,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 322 Invalid, 1588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 19:43:14,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2024-11-09 19:43:14,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1271. [2024-11-09 19:43:14,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1270 states have (on average 2.0338582677165356) internal successors, (2583), 1270 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:14,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 2583 transitions. [2024-11-09 19:43:14,162 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 2583 transitions. Word has length 103 [2024-11-09 19:43:14,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:14,162 INFO L471 AbstractCegarLoop]: Abstraction has 1271 states and 2583 transitions. [2024-11-09 19:43:14,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:14,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 2583 transitions. [2024-11-09 19:43:14,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-09 19:43:14,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:14,166 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:43:14,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:43:14,166 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:14,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:14,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1432132047, now seen corresponding path program 1 times [2024-11-09 19:43:14,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:14,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785599976] [2024-11-09 19:43:14,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:14,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:14,407 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-09 19:43:14,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:14,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785599976] [2024-11-09 19:43:14,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785599976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:14,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:14,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:43:14,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178035799] [2024-11-09 19:43:14,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:14,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:14,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:14,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:14,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:14,411 INFO L87 Difference]: Start difference. First operand 1271 states and 2583 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:16,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:16,226 INFO L93 Difference]: Finished difference Result 3450 states and 7116 transitions. [2024-11-09 19:43:16,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:16,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 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 200 [2024-11-09 19:43:16,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:16,235 INFO L225 Difference]: With dead ends: 3450 [2024-11-09 19:43:16,236 INFO L226 Difference]: Without dead ends: 2181 [2024-11-09 19:43:16,240 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 [2024-11-09 19:43:16,242 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 490 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:16,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 344 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:43:16,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-09 19:43:16,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2176. [2024-11-09 19:43:16,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 2175 states have (on average 1.9802298850574713) internal successors, (4307), 2175 states have internal predecessors, (4307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:16,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 4307 transitions. [2024-11-09 19:43:16,286 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 4307 transitions. Word has length 200 [2024-11-09 19:43:16,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:16,287 INFO L471 AbstractCegarLoop]: Abstraction has 2176 states and 4307 transitions. [2024-11-09 19:43:16,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:16,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 4307 transitions. [2024-11-09 19:43:16,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-11-09 19:43:16,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:16,291 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:16,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:43:16,292 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:16,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:16,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1592535333, now seen corresponding path program 1 times [2024-11-09 19:43:16,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:16,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381504272] [2024-11-09 19:43:16,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:16,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 19:43:16,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:16,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381504272] [2024-11-09 19:43:16,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381504272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:16,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:16,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:43:16,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694718102] [2024-11-09 19:43:16,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:16,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:16,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:16,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:16,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:16,986 INFO L87 Difference]: Start difference. First operand 2176 states and 4307 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:18,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:18,415 INFO L93 Difference]: Finished difference Result 4650 states and 9156 transitions. [2024-11-09 19:43:18,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:18,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 306 [2024-11-09 19:43:18,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:18,425 INFO L225 Difference]: With dead ends: 4650 [2024-11-09 19:43:18,425 INFO L226 Difference]: Without dead ends: 2476 [2024-11-09 19:43:18,428 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 [2024-11-09 19:43:18,429 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 337 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:18,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 363 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:43:18,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2024-11-09 19:43:18,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2476. [2024-11-09 19:43:18,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2475 states have (on average 1.9575757575757575) internal successors, (4845), 2475 states have internal predecessors, (4845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:18,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 4845 transitions. [2024-11-09 19:43:18,474 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 4845 transitions. Word has length 306 [2024-11-09 19:43:18,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:18,475 INFO L471 AbstractCegarLoop]: Abstraction has 2476 states and 4845 transitions. [2024-11-09 19:43:18,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:18,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 4845 transitions. [2024-11-09 19:43:18,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-11-09 19:43:18,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:18,480 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:18,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:43:18,481 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:18,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:18,481 INFO L85 PathProgramCache]: Analyzing trace with hash 446682044, now seen corresponding path program 1 times [2024-11-09 19:43:18,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:18,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466410807] [2024-11-09 19:43:18,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:18,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-09 19:43:18,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:18,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466410807] [2024-11-09 19:43:18,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466410807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:18,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:18,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:18,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122142887] [2024-11-09 19:43:18,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:18,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:18,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:18,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:18,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:18,871 INFO L87 Difference]: Start difference. First operand 2476 states and 4845 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:20,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:20,484 INFO L93 Difference]: Finished difference Result 5251 states and 10505 transitions. [2024-11-09 19:43:20,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:20,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 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 321 [2024-11-09 19:43:20,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:20,502 INFO L225 Difference]: With dead ends: 5251 [2024-11-09 19:43:20,502 INFO L226 Difference]: Without dead ends: 3077 [2024-11-09 19:43:20,506 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 [2024-11-09 19:43:20,507 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 517 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:20,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 327 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:43:20,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2024-11-09 19:43:20,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 2173. [2024-11-09 19:43:20,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 2172 states have (on average 1.977900552486188) internal successors, (4296), 2172 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:20,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 4296 transitions. [2024-11-09 19:43:20,564 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 4296 transitions. Word has length 321 [2024-11-09 19:43:20,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:20,565 INFO L471 AbstractCegarLoop]: Abstraction has 2173 states and 4296 transitions. [2024-11-09 19:43:20,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:20,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 4296 transitions. [2024-11-09 19:43:20,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-11-09 19:43:20,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:20,571 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:20,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:43:20,571 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:20,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:20,572 INFO L85 PathProgramCache]: Analyzing trace with hash -57335370, now seen corresponding path program 1 times [2024-11-09 19:43:20,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:20,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149190884] [2024-11-09 19:43:20,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:20,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:20,922 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 19:43:20,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:20,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149190884] [2024-11-09 19:43:20,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149190884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:20,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:20,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:20,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317422235] [2024-11-09 19:43:20,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:20,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:20,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:20,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:20,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:20,925 INFO L87 Difference]: Start difference. First operand 2173 states and 4296 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:22,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:22,733 INFO L93 Difference]: Finished difference Result 5254 states and 10588 transitions. [2024-11-09 19:43:22,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:22,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 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 380 [2024-11-09 19:43:22,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:22,748 INFO L225 Difference]: With dead ends: 5254 [2024-11-09 19:43:22,748 INFO L226 Difference]: Without dead ends: 3383 [2024-11-09 19:43:22,751 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 [2024-11-09 19:43:22,755 INFO L432 NwaCegarLoop]: 834 mSDtfsCounter, 530 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:22,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 873 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:43:22,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2024-11-09 19:43:22,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3083. [2024-11-09 19:43:22,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 3082 states have (on average 1.9383517196625568) internal successors, (5974), 3082 states have internal predecessors, (5974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:22,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 5974 transitions. [2024-11-09 19:43:22,840 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 5974 transitions. Word has length 380 [2024-11-09 19:43:22,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:22,840 INFO L471 AbstractCegarLoop]: Abstraction has 3083 states and 5974 transitions. [2024-11-09 19:43:22,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:22,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 5974 transitions. [2024-11-09 19:43:22,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-09 19:43:22,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:22,846 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:22,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:43:22,847 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:22,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:22,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1887869292, now seen corresponding path program 1 times [2024-11-09 19:43:22,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:22,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364108201] [2024-11-09 19:43:22,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:22,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:23,137 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:43:23,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:23,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364108201] [2024-11-09 19:43:23,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364108201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:23,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:23,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:23,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421670901] [2024-11-09 19:43:23,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:23,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:23,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:23,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:23,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:23,141 INFO L87 Difference]: Start difference. First operand 3083 states and 5974 transitions. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:24,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:24,862 INFO L93 Difference]: Finished difference Result 7075 states and 13950 transitions. [2024-11-09 19:43:24,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:24,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 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 385 [2024-11-09 19:43:24,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:24,874 INFO L225 Difference]: With dead ends: 7075 [2024-11-09 19:43:24,874 INFO L226 Difference]: Without dead ends: 4294 [2024-11-09 19:43:24,878 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 [2024-11-09 19:43:24,879 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 479 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:24,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 841 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:43:24,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4294 states. [2024-11-09 19:43:24,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4294 to 3991. [2024-11-09 19:43:24,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3991 states, 3990 states have (on average 1.9210526315789473) internal successors, (7665), 3990 states have internal predecessors, (7665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:24,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3991 states to 3991 states and 7665 transitions. [2024-11-09 19:43:24,944 INFO L78 Accepts]: Start accepts. Automaton has 3991 states and 7665 transitions. Word has length 385 [2024-11-09 19:43:24,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:24,945 INFO L471 AbstractCegarLoop]: Abstraction has 3991 states and 7665 transitions. [2024-11-09 19:43:24,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:24,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3991 states and 7665 transitions. [2024-11-09 19:43:24,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-09 19:43:24,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:24,951 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:24,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:43:24,951 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:24,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:24,952 INFO L85 PathProgramCache]: Analyzing trace with hash 601078753, now seen corresponding path program 1 times [2024-11-09 19:43:24,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:24,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97014942] [2024-11-09 19:43:24,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:24,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-09 19:43:25,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:25,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97014942] [2024-11-09 19:43:25,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97014942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:25,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:25,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:25,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871186316] [2024-11-09 19:43:25,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:25,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:25,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:25,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:25,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:25,246 INFO L87 Difference]: Start difference. First operand 3991 states and 7665 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:27,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:27,088 INFO L93 Difference]: Finished difference Result 8881 states and 17320 transitions. [2024-11-09 19:43:27,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:27,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 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 404 [2024-11-09 19:43:27,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:27,107 INFO L225 Difference]: With dead ends: 8881 [2024-11-09 19:43:27,108 INFO L226 Difference]: Without dead ends: 5192 [2024-11-09 19:43:27,113 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 [2024-11-09 19:43:27,113 INFO L432 NwaCegarLoop]: 814 mSDtfsCounter, 478 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:27,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 855 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:43:27,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5192 states. [2024-11-09 19:43:27,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5192 to 4889. [2024-11-09 19:43:27,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4889 states, 4888 states have (on average 1.9122340425531914) internal successors, (9347), 4888 states have internal predecessors, (9347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:27,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4889 states to 4889 states and 9347 transitions. [2024-11-09 19:43:27,197 INFO L78 Accepts]: Start accepts. Automaton has 4889 states and 9347 transitions. Word has length 404 [2024-11-09 19:43:27,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:27,198 INFO L471 AbstractCegarLoop]: Abstraction has 4889 states and 9347 transitions. [2024-11-09 19:43:27,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:27,198 INFO L276 IsEmpty]: Start isEmpty. Operand 4889 states and 9347 transitions. [2024-11-09 19:43:27,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-11-09 19:43:27,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:27,208 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:27,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:43:27,209 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:27,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:27,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1722746458, now seen corresponding path program 1 times [2024-11-09 19:43:27,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:27,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764666634] [2024-11-09 19:43:27,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:27,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:27,869 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 472 proven. 39 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-09 19:43:27,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:27,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764666634] [2024-11-09 19:43:27,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764666634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:43:27,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306094280] [2024-11-09 19:43:27,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:27,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:43:27,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:43:27,872 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) [2024-11-09 19:43:27,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:43:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:28,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:43:28,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:43:28,208 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-09 19:43:28,209 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:43:28,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306094280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:28,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:43:28,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:43:28,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083230316] [2024-11-09 19:43:28,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:28,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:28,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:28,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:28,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:43:28,212 INFO L87 Difference]: Start difference. First operand 4889 states and 9347 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:30,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 19:43:31,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:31,289 INFO L93 Difference]: Finished difference Result 10975 states and 21270 transitions. [2024-11-09 19:43:31,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:31,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 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 520 [2024-11-09 19:43:31,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:31,306 INFO L225 Difference]: With dead ends: 10975 [2024-11-09 19:43:31,306 INFO L226 Difference]: Without dead ends: 6388 [2024-11-09 19:43:31,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:43:31,311 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 619 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:31,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 684 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 19:43:31,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6388 states. [2024-11-09 19:43:31,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6388 to 6388. [2024-11-09 19:43:31,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6388 states, 6387 states have (on average 1.9340848598716143) internal successors, (12353), 6387 states have internal predecessors, (12353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:31,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6388 states to 6388 states and 12353 transitions. [2024-11-09 19:43:31,424 INFO L78 Accepts]: Start accepts. Automaton has 6388 states and 12353 transitions. Word has length 520 [2024-11-09 19:43:31,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:31,426 INFO L471 AbstractCegarLoop]: Abstraction has 6388 states and 12353 transitions. [2024-11-09 19:43:31,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:31,426 INFO L276 IsEmpty]: Start isEmpty. Operand 6388 states and 12353 transitions. [2024-11-09 19:43:31,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2024-11-09 19:43:31,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:31,432 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:31,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:43:31,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 19:43:31,633 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:31,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:31,633 INFO L85 PathProgramCache]: Analyzing trace with hash -215902822, now seen corresponding path program 1 times [2024-11-09 19:43:31,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:31,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652008323] [2024-11-09 19:43:31,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:31,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:32,192 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2024-11-09 19:43:32,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:32,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652008323] [2024-11-09 19:43:32,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652008323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:32,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:32,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:32,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063562510] [2024-11-09 19:43:32,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:32,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:32,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:32,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:32,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:32,195 INFO L87 Difference]: Start difference. First operand 6388 states and 12353 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:33,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:33,832 INFO L93 Difference]: Finished difference Result 17288 states and 33588 transitions. [2024-11-09 19:43:33,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:33,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 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 524 [2024-11-09 19:43:33,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:33,856 INFO L225 Difference]: With dead ends: 17288 [2024-11-09 19:43:33,856 INFO L226 Difference]: Without dead ends: 11202 [2024-11-09 19:43:33,864 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 [2024-11-09 19:43:33,865 INFO L432 NwaCegarLoop]: 822 mSDtfsCounter, 481 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:33,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 855 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:43:33,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11202 states. [2024-11-09 19:43:33,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11202 to 11191. [2024-11-09 19:43:34,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11191 states, 11190 states have (on average 1.9058087578194818) internal successors, (21326), 11190 states have internal predecessors, (21326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:34,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11191 states to 11191 states and 21326 transitions. [2024-11-09 19:43:34,025 INFO L78 Accepts]: Start accepts. Automaton has 11191 states and 21326 transitions. Word has length 524 [2024-11-09 19:43:34,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:34,026 INFO L471 AbstractCegarLoop]: Abstraction has 11191 states and 21326 transitions. [2024-11-09 19:43:34,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:34,026 INFO L276 IsEmpty]: Start isEmpty. Operand 11191 states and 21326 transitions. [2024-11-09 19:43:34,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2024-11-09 19:43:34,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:34,035 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:34,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:43:34,035 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:34,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:34,036 INFO L85 PathProgramCache]: Analyzing trace with hash -64032500, now seen corresponding path program 1 times [2024-11-09 19:43:34,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:34,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446222693] [2024-11-09 19:43:34,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:34,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:34,584 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2024-11-09 19:43:34,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:34,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446222693] [2024-11-09 19:43:34,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446222693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:34,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:34,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:34,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73271842] [2024-11-09 19:43:34,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:34,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:34,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:34,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:34,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:34,587 INFO L87 Difference]: Start difference. First operand 11191 states and 21326 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:36,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:36,060 INFO L93 Difference]: Finished difference Result 23280 states and 44313 transitions. [2024-11-09 19:43:36,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:36,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 578 [2024-11-09 19:43:36,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:36,083 INFO L225 Difference]: With dead ends: 23280 [2024-11-09 19:43:36,083 INFO L226 Difference]: Without dead ends: 11191 [2024-11-09 19:43:36,095 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 [2024-11-09 19:43:36,096 INFO L432 NwaCegarLoop]: 857 mSDtfsCounter, 504 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:36,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 903 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:43:36,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11191 states. [2024-11-09 19:43:36,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11191 to 11191. [2024-11-09 19:43:36,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11191 states, 11190 states have (on average 1.9042001787310099) internal successors, (21308), 11190 states have internal predecessors, (21308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:36,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11191 states to 11191 states and 21308 transitions. [2024-11-09 19:43:36,321 INFO L78 Accepts]: Start accepts. Automaton has 11191 states and 21308 transitions. Word has length 578 [2024-11-09 19:43:36,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:36,322 INFO L471 AbstractCegarLoop]: Abstraction has 11191 states and 21308 transitions. [2024-11-09 19:43:36,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:36,322 INFO L276 IsEmpty]: Start isEmpty. Operand 11191 states and 21308 transitions. [2024-11-09 19:43:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2024-11-09 19:43:36,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:36,331 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:36,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:43:36,332 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:36,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:36,332 INFO L85 PathProgramCache]: Analyzing trace with hash 2110702227, now seen corresponding path program 1 times [2024-11-09 19:43:36,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:36,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125738099] [2024-11-09 19:43:36,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:36,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:37,027 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 631 proven. 39 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2024-11-09 19:43:37,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:37,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125738099] [2024-11-09 19:43:37,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125738099] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:43:37,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623373185] [2024-11-09 19:43:37,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:37,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:43:37,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:43:37,031 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) [2024-11-09 19:43:37,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:43:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:37,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:43:37,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:43:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-09 19:43:37,388 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:43:37,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623373185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:37,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:43:37,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:43:37,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518854312] [2024-11-09 19:43:37,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:37,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:37,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:37,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:37,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:43:37,392 INFO L87 Difference]: Start difference. First operand 11191 states and 21308 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:38,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:38,880 INFO L93 Difference]: Finished difference Result 22077 states and 42071 transitions. [2024-11-09 19:43:38,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:38,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 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 600 [2024-11-09 19:43:38,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:38,903 INFO L225 Difference]: With dead ends: 22077 [2024-11-09 19:43:38,903 INFO L226 Difference]: Without dead ends: 11188 [2024-11-09 19:43:38,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 599 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:43:38,915 INFO L432 NwaCegarLoop]: 797 mSDtfsCounter, 485 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:38,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 835 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:43:38,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11188 states. [2024-11-09 19:43:39,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11188 to 11188. [2024-11-09 19:43:39,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11188 states, 11187 states have (on average 1.8471440064360418) internal successors, (20664), 11187 states have internal predecessors, (20664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:39,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11188 states to 11188 states and 20664 transitions. [2024-11-09 19:43:39,066 INFO L78 Accepts]: Start accepts. Automaton has 11188 states and 20664 transitions. Word has length 600 [2024-11-09 19:43:39,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:39,066 INFO L471 AbstractCegarLoop]: Abstraction has 11188 states and 20664 transitions. [2024-11-09 19:43:39,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:39,067 INFO L276 IsEmpty]: Start isEmpty. Operand 11188 states and 20664 transitions. [2024-11-09 19:43:39,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2024-11-09 19:43:39,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:39,075 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:43:39,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:43:39,276 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,SelfDestructingSolverStorable12 [2024-11-09 19:43:39,277 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:39,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:39,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1284545503, now seen corresponding path program 1 times [2024-11-09 19:43:39,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:39,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246824020] [2024-11-09 19:43:39,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:39,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:39,989 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 556 proven. 39 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-09 19:43:39,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:39,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246824020] [2024-11-09 19:43:39,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246824020] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:43:39,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431669785] [2024-11-09 19:43:39,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:39,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:43:39,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:43:39,992 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) [2024-11-09 19:43:39,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 19:43:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:40,186 INFO L255 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 19:43:40,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:43:41,103 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 556 proven. 39 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-09 19:43:41,103 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:43:41,980 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 556 proven. 39 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-09 19:43:41,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431669785] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 19:43:41,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 19:43:41,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-09 19:43:41,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368329498] [2024-11-09 19:43:41,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 19:43:41,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 19:43:41,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:41,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 19:43:41,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:43:41,985 INFO L87 Difference]: Start difference. First operand 11188 states and 20664 transitions. Second operand has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 8 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:49,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:49,311 INFO L93 Difference]: Finished difference Result 29540 states and 54459 transitions. [2024-11-09 19:43:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 19:43:49,312 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 8 states have internal predecessors, (785), 0 states have call successors, (0), 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 600 [2024-11-09 19:43:49,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:49,335 INFO L225 Difference]: With dead ends: 29540 [2024-11-09 19:43:49,335 INFO L226 Difference]: Without dead ends: 13289 [2024-11-09 19:43:49,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1210 GetRequests, 1195 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-11-09 19:43:49,349 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 5468 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 9828 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5468 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 10475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 9828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:49,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5468 Valid, 300 Invalid, 10475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 9828 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-09 19:43:49,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13289 states. [2024-11-09 19:43:49,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13289 to 10586. [2024-11-09 19:43:49,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10586 states, 10585 states have (on average 1.807085498346717) internal successors, (19128), 10585 states have internal predecessors, (19128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:49,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10586 states to 10586 states and 19128 transitions. [2024-11-09 19:43:49,490 INFO L78 Accepts]: Start accepts. Automaton has 10586 states and 19128 transitions. Word has length 600 [2024-11-09 19:43:49,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:49,490 INFO L471 AbstractCegarLoop]: Abstraction has 10586 states and 19128 transitions. [2024-11-09 19:43:49,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 8 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:49,491 INFO L276 IsEmpty]: Start isEmpty. Operand 10586 states and 19128 transitions. [2024-11-09 19:43:49,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-09 19:43:49,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:49,498 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:43:49,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 19:43:49,699 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 [2024-11-09 19:43:49,699 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:49,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:49,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1712353315, now seen corresponding path program 1 times [2024-11-09 19:43:49,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:49,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380304075] [2024-11-09 19:43:49,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:49,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:50,268 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-09 19:43:50,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:50,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380304075] [2024-11-09 19:43:50,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380304075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:50,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:50,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:50,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400678242] [2024-11-09 19:43:50,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:50,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:50,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:50,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:50,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:50,272 INFO L87 Difference]: Start difference. First operand 10586 states and 19128 transitions. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:51,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:51,517 INFO L93 Difference]: Finished difference Result 24182 states and 43762 transitions. [2024-11-09 19:43:51,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:51,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 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 631 [2024-11-09 19:43:51,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:51,546 INFO L225 Difference]: With dead ends: 24182 [2024-11-09 19:43:51,546 INFO L226 Difference]: Without dead ends: 13898 [2024-11-09 19:43:51,557 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 [2024-11-09 19:43:51,558 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 351 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:51,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 752 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:43:51,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13898 states. [2024-11-09 19:43:51,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13898 to 13595. [2024-11-09 19:43:51,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13595 states, 13594 states have (on average 1.8066058555244962) internal successors, (24559), 13594 states have internal predecessors, (24559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:51,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13595 states to 13595 states and 24559 transitions. [2024-11-09 19:43:51,735 INFO L78 Accepts]: Start accepts. Automaton has 13595 states and 24559 transitions. Word has length 631 [2024-11-09 19:43:51,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:51,736 INFO L471 AbstractCegarLoop]: Abstraction has 13595 states and 24559 transitions. [2024-11-09 19:43:51,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:51,736 INFO L276 IsEmpty]: Start isEmpty. Operand 13595 states and 24559 transitions. [2024-11-09 19:43:51,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2024-11-09 19:43:51,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:51,743 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:43:51,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 19:43:51,744 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:51,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:51,745 INFO L85 PathProgramCache]: Analyzing trace with hash 730763803, now seen corresponding path program 1 times [2024-11-09 19:43:51,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:51,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902646056] [2024-11-09 19:43:51,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:51,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:52,063 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-09 19:43:52,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:52,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902646056] [2024-11-09 19:43:52,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902646056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:52,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:52,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:52,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008008480] [2024-11-09 19:43:52,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:52,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:52,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:52,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:52,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:52,065 INFO L87 Difference]: Start difference. First operand 13595 states and 24559 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:53,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:53,214 INFO L93 Difference]: Finished difference Result 30187 states and 54543 transitions. [2024-11-09 19:43:53,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:53,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 636 [2024-11-09 19:43:53,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:53,240 INFO L225 Difference]: With dead ends: 30187 [2024-11-09 19:43:53,240 INFO L226 Difference]: Without dead ends: 16594 [2024-11-09 19:43:53,251 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 [2024-11-09 19:43:53,252 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 516 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:53,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 778 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:43:53,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16594 states. [2024-11-09 19:43:53,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16594 to 15694. [2024-11-09 19:43:53,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15694 states, 15693 states have (on average 1.802459695405595) internal successors, (28286), 15693 states have internal predecessors, (28286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15694 states to 15694 states and 28286 transitions. [2024-11-09 19:43:53,454 INFO L78 Accepts]: Start accepts. Automaton has 15694 states and 28286 transitions. Word has length 636 [2024-11-09 19:43:53,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:53,455 INFO L471 AbstractCegarLoop]: Abstraction has 15694 states and 28286 transitions. [2024-11-09 19:43:53,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:53,455 INFO L276 IsEmpty]: Start isEmpty. Operand 15694 states and 28286 transitions. [2024-11-09 19:43:53,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2024-11-09 19:43:53,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:53,467 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:53,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:43:53,467 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:53,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:53,468 INFO L85 PathProgramCache]: Analyzing trace with hash 755308450, now seen corresponding path program 1 times [2024-11-09 19:43:53,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:53,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530350235] [2024-11-09 19:43:53,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:53,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 503 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2024-11-09 19:43:54,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:54,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530350235] [2024-11-09 19:43:54,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530350235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:54,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:54,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:54,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684679103] [2024-11-09 19:43:54,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:54,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:54,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:54,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:54,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:54,180 INFO L87 Difference]: Start difference. First operand 15694 states and 28286 transitions. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:55,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:55,428 INFO L93 Difference]: Finished difference Result 33484 states and 60418 transitions. [2024-11-09 19:43:55,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:55,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 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 696 [2024-11-09 19:43:55,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:55,450 INFO L225 Difference]: With dead ends: 33484 [2024-11-09 19:43:55,450 INFO L226 Difference]: Without dead ends: 18092 [2024-11-09 19:43:55,461 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 [2024-11-09 19:43:55,462 INFO L432 NwaCegarLoop]: 674 mSDtfsCounter, 381 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:55,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 701 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:43:55,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18092 states. [2024-11-09 19:43:55,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18092 to 15083. [2024-11-09 19:43:55,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15083 states, 15082 states have (on average 1.8028112982363083) internal successors, (27190), 15082 states have internal predecessors, (27190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:55,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15083 states to 15083 states and 27190 transitions. [2024-11-09 19:43:55,676 INFO L78 Accepts]: Start accepts. Automaton has 15083 states and 27190 transitions. Word has length 696 [2024-11-09 19:43:55,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:55,677 INFO L471 AbstractCegarLoop]: Abstraction has 15083 states and 27190 transitions. [2024-11-09 19:43:55,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:55,677 INFO L276 IsEmpty]: Start isEmpty. Operand 15083 states and 27190 transitions. [2024-11-09 19:43:55,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 822 [2024-11-09 19:43:55,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:55,691 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:43:55,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 19:43:55,692 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:55,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:55,692 INFO L85 PathProgramCache]: Analyzing trace with hash -110603631, now seen corresponding path program 1 times [2024-11-09 19:43:55,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:55,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570864901] [2024-11-09 19:43:55,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:55,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:56,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1000 backedges. 505 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-09 19:43:56,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:56,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570864901] [2024-11-09 19:43:56,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570864901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:56,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:56,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:56,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947966969] [2024-11-09 19:43:56,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:56,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:56,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:56,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:56,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:56,114 INFO L87 Difference]: Start difference. First operand 15083 states and 27190 transitions. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:57,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:57,359 INFO L93 Difference]: Finished difference Result 31963 states and 57635 transitions. [2024-11-09 19:43:57,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:57,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 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 821 [2024-11-09 19:43:57,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:57,383 INFO L225 Difference]: With dead ends: 31963 [2024-11-09 19:43:57,384 INFO L226 Difference]: Without dead ends: 17182 [2024-11-09 19:43:57,395 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 [2024-11-09 19:43:57,396 INFO L432 NwaCegarLoop]: 707 mSDtfsCounter, 550 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:57,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 747 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:43:57,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17182 states. [2024-11-09 19:43:57,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17182 to 15982. [2024-11-09 19:43:57,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15982 states, 15981 states have (on average 1.800825980852262) internal successors, (28779), 15981 states have internal predecessors, (28779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:57,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15982 states to 15982 states and 28779 transitions. [2024-11-09 19:43:57,594 INFO L78 Accepts]: Start accepts. Automaton has 15982 states and 28779 transitions. Word has length 821 [2024-11-09 19:43:57,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:57,595 INFO L471 AbstractCegarLoop]: Abstraction has 15982 states and 28779 transitions. [2024-11-09 19:43:57,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:57,595 INFO L276 IsEmpty]: Start isEmpty. Operand 15982 states and 28779 transitions. [2024-11-09 19:43:57,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2024-11-09 19:43:57,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:57,606 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:43:57,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 19:43:57,606 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:57,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:57,607 INFO L85 PathProgramCache]: Analyzing trace with hash 970720326, now seen corresponding path program 1 times [2024-11-09 19:43:57,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:57,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132038611] [2024-11-09 19:43:57,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:57,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:58,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2024-11-09 19:43:58,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:58,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132038611] [2024-11-09 19:43:58,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132038611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:58,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:58,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:58,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157345946] [2024-11-09 19:43:58,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:58,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:58,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:58,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:58,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:58,171 INFO L87 Difference]: Start difference. First operand 15982 states and 28779 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:59,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:59,441 INFO L93 Difference]: Finished difference Result 37377 states and 67308 transitions. [2024-11-09 19:43:59,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:59,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 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 842 [2024-11-09 19:43:59,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:59,467 INFO L225 Difference]: With dead ends: 37377 [2024-11-09 19:43:59,467 INFO L226 Difference]: Without dead ends: 21397 [2024-11-09 19:43:59,479 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 [2024-11-09 19:43:59,480 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 551 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:59,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 140 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:43:59,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21397 states. [2024-11-09 19:43:59,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21397 to 18387. [2024-11-09 19:43:59,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18387 states, 18386 states have (on average 1.798977482867399) internal successors, (33076), 18386 states have internal predecessors, (33076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:59,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18387 states to 18387 states and 33076 transitions. [2024-11-09 19:43:59,707 INFO L78 Accepts]: Start accepts. Automaton has 18387 states and 33076 transitions. Word has length 842 [2024-11-09 19:43:59,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:59,707 INFO L471 AbstractCegarLoop]: Abstraction has 18387 states and 33076 transitions. [2024-11-09 19:43:59,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:59,708 INFO L276 IsEmpty]: Start isEmpty. Operand 18387 states and 33076 transitions. [2024-11-09 19:43:59,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 877 [2024-11-09 19:43:59,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:59,720 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:59,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 19:43:59,720 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:59,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:59,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1794436794, now seen corresponding path program 1 times [2024-11-09 19:43:59,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:59,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155252630] [2024-11-09 19:43:59,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:59,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:00,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1361 backedges. 713 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-09 19:44:00,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:00,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155252630] [2024-11-09 19:44:00,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155252630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:00,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:00,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:44:00,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586888510] [2024-11-09 19:44:00,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:00,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:00,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:00,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:00,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:00,420 INFO L87 Difference]: Start difference. First operand 18387 states and 33076 transitions. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:44:01,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:01,748 INFO L93 Difference]: Finished difference Result 41285 states and 74230 transitions. [2024-11-09 19:44:01,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:01,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 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 876 [2024-11-09 19:44:01,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:01,776 INFO L225 Difference]: With dead ends: 41285 [2024-11-09 19:44:01,776 INFO L226 Difference]: Without dead ends: 23200 [2024-11-09 19:44:01,784 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 [2024-11-09 19:44:01,785 INFO L432 NwaCegarLoop]: 696 mSDtfsCounter, 382 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:01,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 724 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:44:01,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23200 states. [2024-11-09 19:44:02,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23200 to 19888. [2024-11-09 19:44:02,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19888 states, 19887 states have (on average 1.7980087494343038) internal successors, (35757), 19887 states have internal predecessors, (35757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:44:02,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19888 states to 19888 states and 35757 transitions. [2024-11-09 19:44:02,088 INFO L78 Accepts]: Start accepts. Automaton has 19888 states and 35757 transitions. Word has length 876 [2024-11-09 19:44:02,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:02,089 INFO L471 AbstractCegarLoop]: Abstraction has 19888 states and 35757 transitions. [2024-11-09 19:44:02,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:44:02,089 INFO L276 IsEmpty]: Start isEmpty. Operand 19888 states and 35757 transitions. [2024-11-09 19:44:02,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2024-11-09 19:44:02,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:02,109 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:44:02,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 19:44:02,110 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:02,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:02,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1227867207, now seen corresponding path program 1 times [2024-11-09 19:44:02,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:02,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21379279] [2024-11-09 19:44:02,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:02,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1138 backedges. 703 proven. 270 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-09 19:44:03,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:03,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21379279] [2024-11-09 19:44:03,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21379279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:44:03,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489447084] [2024-11-09 19:44:03,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:03,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:44:03,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:44:03,563 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) [2024-11-09 19:44:03,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 19:44:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:03,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 19:44:03,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:44:06,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1138 backedges. 703 proven. 270 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-09 19:44:06,520 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:44:11,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1138 backedges. 703 proven. 270 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-09 19:44:11,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489447084] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 19:44:11,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 19:44:11,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-09 19:44:11,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898041905] [2024-11-09 19:44:11,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 19:44:11,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 19:44:11,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:11,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 19:44:11,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:44:11,380 INFO L87 Difference]: Start difference. First operand 19888 states and 35757 transitions. Second operand has 9 states, 9 states have (on average 201.0) internal successors, (1809), 8 states have internal predecessors, (1809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)