./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label15.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem16_label15.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 04841d1aba9375b8a6b06dc8afee8df1fa6191c086b63f3a4a476e022f53e582 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:12:51,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:12:51,880 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:12:51,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:12:51,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:12:51,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:12:51,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:12:51,927 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:12:51,927 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:12:51,927 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:12:51,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:12:51,928 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:12:51,929 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:12:51,929 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:12:51,929 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:12:51,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:12:51,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:12:51,931 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:12:51,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:12:51,931 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:12:51,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:12:51,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:12:51,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:12:51,935 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:12:51,935 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:12:51,944 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:12:51,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:12:51,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:12:51,945 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:12:51,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:12:51,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:12:51,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:12:51,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:12:51,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:12:51,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:12:51,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:12:51,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:12:51,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:12:51,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:12:51,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:12:51,948 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:12:51,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:12:51,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04841d1aba9375b8a6b06dc8afee8df1fa6191c086b63f3a4a476e022f53e582 [2024-11-16 04:12:52,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:12:52,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:12:52,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:12:52,229 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:12:52,229 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:12:52,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label15.c [2024-11-16 04:12:53,681 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:12:54,026 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:12:54,027 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label15.c [2024-11-16 04:12:54,053 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca7e9115c/594ff64d837640c49bf3e839f60cc008/FLAG76a186639 [2024-11-16 04:12:54,069 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca7e9115c/594ff64d837640c49bf3e839f60cc008 [2024-11-16 04:12:54,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:12:54,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:12:54,078 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:12:54,078 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:12:54,083 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:12:54,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:12:54" (1/1) ... [2024-11-16 04:12:54,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20bd9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:54, skipping insertion in model container [2024-11-16 04:12:54,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:12:54" (1/1) ... [2024-11-16 04:12:54,151 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:12:54,374 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/Problem16_label15.c[2501,2514] [2024-11-16 04:12:54,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:12:54,785 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:12:54,806 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/Problem16_label15.c[2501,2514] [2024-11-16 04:12:55,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:12:55,048 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:12:55,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55 WrapperNode [2024-11-16 04:12:55,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:12:55,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:12:55,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:12:55,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:12:55,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55" (1/1) ... [2024-11-16 04:12:55,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55" (1/1) ... [2024-11-16 04:12:55,237 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-11-16 04:12:55,238 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:12:55,238 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:12:55,239 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:12:55,239 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:12:55,249 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55" (1/1) ... [2024-11-16 04:12:55,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55" (1/1) ... [2024-11-16 04:12:55,274 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55" (1/1) ... [2024-11-16 04:12:55,345 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 04:12:55,345 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55" (1/1) ... [2024-11-16 04:12:55,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55" (1/1) ... [2024-11-16 04:12:55,394 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55" (1/1) ... [2024-11-16 04:12:55,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55" (1/1) ... [2024-11-16 04:12:55,413 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55" (1/1) ... [2024-11-16 04:12:55,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55" (1/1) ... [2024-11-16 04:12:55,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:12:55,443 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:12:55,443 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:12:55,444 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:12:55,445 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55" (1/1) ... [2024-11-16 04:12:55,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:12:55,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:12:55,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 04:12:55,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 04:12:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:12:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:12:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:12:55,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:12:55,593 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:12:55,596 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:12:57,565 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1501: havoc calculate_output_#t~ret7#1; [2024-11-16 04:12:57,647 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-16 04:12:57,647 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:12:57,680 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:12:57,680 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:12:57,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:12:57 BoogieIcfgContainer [2024-11-16 04:12:57,681 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:12:57,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:12:57,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:12:57,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:12:57,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:12:54" (1/3) ... [2024-11-16 04:12:57,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9da6116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:12:57, skipping insertion in model container [2024-11-16 04:12:57,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:55" (2/3) ... [2024-11-16 04:12:57,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9da6116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:12:57, skipping insertion in model container [2024-11-16 04:12:57,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:12:57" (3/3) ... [2024-11-16 04:12:57,693 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label15.c [2024-11-16 04:12:57,711 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:12:57,711 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:12:57,794 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:12:57,803 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;@7a5262d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:12:57,803 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:12:57,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 399 states, 397 states have (on average 1.8287153652392947) internal successors, (726), 398 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:12:57,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-16 04:12:57,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:57,820 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] [2024-11-16 04:12:57,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:57,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:57,826 INFO L85 PathProgramCache]: Analyzing trace with hash -2011194784, now seen corresponding path program 1 times [2024-11-16 04:12:57,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:57,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432844350] [2024-11-16 04:12:57,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:57,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:58,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:12:58,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:58,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432844350] [2024-11-16 04:12:58,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432844350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:58,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:12:58,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:12:58,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767382253] [2024-11-16 04:12:58,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:58,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:12:58,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:58,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:12:58,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:12:58,299 INFO L87 Difference]: Start difference. First operand has 399 states, 397 states have (on average 1.8287153652392947) internal successors, (726), 398 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:01,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:01,213 INFO L93 Difference]: Finished difference Result 1463 states and 2771 transitions. [2024-11-16 04:13:01,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:13:01,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-16 04:13:01,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:01,242 INFO L225 Difference]: With dead ends: 1463 [2024-11-16 04:13:01,242 INFO L226 Difference]: Without dead ends: 995 [2024-11-16 04:13:01,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:13:01,255 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 990 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 2946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:01,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 354 Invalid, 2946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 04:13:01,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-16 04:13:01,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 995. [2024-11-16 04:13:01,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 994 states have (on average 1.4839034205231387) internal successors, (1475), 994 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:01,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1475 transitions. [2024-11-16 04:13:01,361 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1475 transitions. Word has length 24 [2024-11-16 04:13:01,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:01,361 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1475 transitions. [2024-11-16 04:13:01,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:01,362 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1475 transitions. [2024-11-16 04:13:01,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 04:13:01,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:01,365 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:01,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:13:01,366 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:01,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:01,366 INFO L85 PathProgramCache]: Analyzing trace with hash -97381924, now seen corresponding path program 1 times [2024-11-16 04:13:01,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:01,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434325093] [2024-11-16 04:13:01,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:01,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:01,609 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 04:13:01,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:01,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434325093] [2024-11-16 04:13:01,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434325093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:01,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:01,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:13:01,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122696273] [2024-11-16 04:13:01,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:01,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:01,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:01,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:01,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:01,615 INFO L87 Difference]: Start difference. First operand 995 states and 1475 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:02,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:02,911 INFO L93 Difference]: Finished difference Result 2318 states and 3735 transitions. [2024-11-16 04:13:02,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:02,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 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 112 [2024-11-16 04:13:02,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:02,919 INFO L225 Difference]: With dead ends: 2318 [2024-11-16 04:13:02,919 INFO L226 Difference]: Without dead ends: 1655 [2024-11-16 04:13:02,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:02,923 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 280 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:02,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 203 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:13:02,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2024-11-16 04:13:02,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1655. [2024-11-16 04:13:02,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1654 states have (on average 1.3778718258766627) internal successors, (2279), 1654 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:02,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 2279 transitions. [2024-11-16 04:13:03,000 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 2279 transitions. Word has length 112 [2024-11-16 04:13:03,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:03,000 INFO L471 AbstractCegarLoop]: Abstraction has 1655 states and 2279 transitions. [2024-11-16 04:13:03,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:03,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 2279 transitions. [2024-11-16 04:13:03,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-16 04:13:03,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:03,013 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:03,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:13:03,013 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:03,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:03,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1733070996, now seen corresponding path program 1 times [2024-11-16 04:13:03,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:03,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843263272] [2024-11-16 04:13:03,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:03,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:03,326 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-16 04:13:03,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:03,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843263272] [2024-11-16 04:13:03,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843263272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:03,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:03,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:13:03,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717794838] [2024-11-16 04:13:03,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:03,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:03,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:03,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:03,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:03,330 INFO L87 Difference]: Start difference. First operand 1655 states and 2279 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:04,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:04,714 INFO L93 Difference]: Finished difference Result 4298 states and 6147 transitions. [2024-11-16 04:13:04,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:04,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2024-11-16 04:13:04,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:04,727 INFO L225 Difference]: With dead ends: 4298 [2024-11-16 04:13:04,728 INFO L226 Difference]: Without dead ends: 2975 [2024-11-16 04:13:04,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:04,732 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 359 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:04,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 159 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:13:04,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2024-11-16 04:13:04,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 2645. [2024-11-16 04:13:04,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 1.3388804841149773) internal successors, (3540), 2644 states have internal predecessors, (3540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:04,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3540 transitions. [2024-11-16 04:13:04,796 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3540 transitions. Word has length 192 [2024-11-16 04:13:04,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:04,798 INFO L471 AbstractCegarLoop]: Abstraction has 2645 states and 3540 transitions. [2024-11-16 04:13:04,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:04,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3540 transitions. [2024-11-16 04:13:04,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-16 04:13:04,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:04,809 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:04,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:13:04,809 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:04,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:04,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1413874258, now seen corresponding path program 1 times [2024-11-16 04:13:04,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:04,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690235830] [2024-11-16 04:13:04,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:04,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 04:13:05,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:05,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690235830] [2024-11-16 04:13:05,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690235830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:05,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:05,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:13:05,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699406936] [2024-11-16 04:13:05,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:05,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:05,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:05,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:05,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:05,120 INFO L87 Difference]: Start difference. First operand 2645 states and 3540 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:06,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:06,266 INFO L93 Difference]: Finished difference Result 5618 states and 7546 transitions. [2024-11-16 04:13:06,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:06,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 268 [2024-11-16 04:13:06,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:06,277 INFO L225 Difference]: With dead ends: 5618 [2024-11-16 04:13:06,278 INFO L226 Difference]: Without dead ends: 3305 [2024-11-16 04:13:06,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:06,283 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 279 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:06,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 80 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:13:06,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2024-11-16 04:13:06,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 3305. [2024-11-16 04:13:06,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3305 states, 3304 states have (on average 1.2239709443099274) internal successors, (4044), 3304 states have internal predecessors, (4044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:06,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4044 transitions. [2024-11-16 04:13:06,345 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4044 transitions. Word has length 268 [2024-11-16 04:13:06,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:06,345 INFO L471 AbstractCegarLoop]: Abstraction has 3305 states and 4044 transitions. [2024-11-16 04:13:06,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:06,346 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4044 transitions. [2024-11-16 04:13:06,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2024-11-16 04:13:06,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:06,353 INFO L215 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:06,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:13:06,354 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:06,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:06,355 INFO L85 PathProgramCache]: Analyzing trace with hash -2082283737, now seen corresponding path program 1 times [2024-11-16 04:13:06,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:06,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162197805] [2024-11-16 04:13:06,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:06,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:06,695 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 496 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-16 04:13:06,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:06,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162197805] [2024-11-16 04:13:06,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162197805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:06,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:06,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:06,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269844278] [2024-11-16 04:13:06,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:06,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:06,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:06,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:06,701 INFO L87 Difference]: Start difference. First operand 3305 states and 4044 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:07,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:07,945 INFO L93 Difference]: Finished difference Result 6608 states and 8098 transitions. [2024-11-16 04:13:07,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:07,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 447 [2024-11-16 04:13:07,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:07,959 INFO L225 Difference]: With dead ends: 6608 [2024-11-16 04:13:07,959 INFO L226 Difference]: Without dead ends: 3305 [2024-11-16 04:13:07,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:07,967 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 289 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:07,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 542 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:13:07,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2024-11-16 04:13:08,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 3305. [2024-11-16 04:13:08,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3305 states, 3304 states have (on average 1.056598062953995) internal successors, (3491), 3304 states have internal predecessors, (3491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:08,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 3491 transitions. [2024-11-16 04:13:08,018 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 3491 transitions. Word has length 447 [2024-11-16 04:13:08,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:08,019 INFO L471 AbstractCegarLoop]: Abstraction has 3305 states and 3491 transitions. [2024-11-16 04:13:08,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:08,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 3491 transitions. [2024-11-16 04:13:08,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2024-11-16 04:13:08,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:08,027 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-16 04:13:08,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:13:08,027 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:08,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:08,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1423689273, now seen corresponding path program 1 times [2024-11-16 04:13:08,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:08,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901486582] [2024-11-16 04:13:08,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:08,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:08,506 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-16 04:13:08,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:08,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901486582] [2024-11-16 04:13:08,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901486582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:08,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:08,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:08,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530367603] [2024-11-16 04:13:08,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:08,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:08,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:08,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:08,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:08,511 INFO L87 Difference]: Start difference. First operand 3305 states and 3491 transitions. Second operand has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:09,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:09,444 INFO L93 Difference]: Finished difference Result 7928 states and 8434 transitions. [2024-11-16 04:13:09,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:09,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 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 498 [2024-11-16 04:13:09,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:09,464 INFO L225 Difference]: With dead ends: 7928 [2024-11-16 04:13:09,464 INFO L226 Difference]: Without dead ends: 4625 [2024-11-16 04:13:09,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:09,470 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 219 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:09,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 439 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:13:09,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4625 states. [2024-11-16 04:13:09,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4625 to 4625. [2024-11-16 04:13:09,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4625 states, 4624 states have (on average 1.0456314878892734) internal successors, (4835), 4624 states have internal predecessors, (4835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:09,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4625 states to 4625 states and 4835 transitions. [2024-11-16 04:13:09,580 INFO L78 Accepts]: Start accepts. Automaton has 4625 states and 4835 transitions. Word has length 498 [2024-11-16 04:13:09,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:09,581 INFO L471 AbstractCegarLoop]: Abstraction has 4625 states and 4835 transitions. [2024-11-16 04:13:09,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:09,582 INFO L276 IsEmpty]: Start isEmpty. Operand 4625 states and 4835 transitions. [2024-11-16 04:13:09,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2024-11-16 04:13:09,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:09,594 INFO L215 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:09,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:13:09,595 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:09,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:09,596 INFO L85 PathProgramCache]: Analyzing trace with hash -129471482, now seen corresponding path program 1 times [2024-11-16 04:13:09,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:09,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013078125] [2024-11-16 04:13:09,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:09,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:10,012 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 481 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 04:13:10,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:10,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013078125] [2024-11-16 04:13:10,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013078125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:10,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:10,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:10,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936228633] [2024-11-16 04:13:10,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:10,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:10,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:10,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:10,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:10,016 INFO L87 Difference]: Start difference. First operand 4625 states and 4835 transitions. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:10,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:10,995 INFO L93 Difference]: Finished difference Result 10568 states and 11121 transitions. [2024-11-16 04:13:10,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:10,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 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 561 [2024-11-16 04:13:10,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:11,015 INFO L225 Difference]: With dead ends: 10568 [2024-11-16 04:13:11,015 INFO L226 Difference]: Without dead ends: 5945 [2024-11-16 04:13:11,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:11,024 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 185 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:11,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 63 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:13:11,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5945 states. [2024-11-16 04:13:11,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5945 to 5945. [2024-11-16 04:13:11,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5945 states, 5944 states have (on average 1.0484522207267832) internal successors, (6232), 5944 states have internal predecessors, (6232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:11,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5945 states to 5945 states and 6232 transitions. [2024-11-16 04:13:11,121 INFO L78 Accepts]: Start accepts. Automaton has 5945 states and 6232 transitions. Word has length 561 [2024-11-16 04:13:11,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:11,122 INFO L471 AbstractCegarLoop]: Abstraction has 5945 states and 6232 transitions. [2024-11-16 04:13:11,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:11,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5945 states and 6232 transitions. [2024-11-16 04:13:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2024-11-16 04:13:11,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:11,143 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:11,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:13:11,144 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:11,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:11,144 INFO L85 PathProgramCache]: Analyzing trace with hash -2024866957, now seen corresponding path program 1 times [2024-11-16 04:13:11,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:11,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859487566] [2024-11-16 04:13:11,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:11,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:12,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1299 backedges. 730 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2024-11-16 04:13:12,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:12,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859487566] [2024-11-16 04:13:12,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859487566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:12,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:12,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:13:12,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832744192] [2024-11-16 04:13:12,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:12,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:12,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:12,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:12,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:12,434 INFO L87 Difference]: Start difference. First operand 5945 states and 6232 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 2 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:13,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:13,349 INFO L93 Difference]: Finished difference Result 11888 states and 12470 transitions. [2024-11-16 04:13:13,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:13,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 2 states have internal predecessors, (395), 0 states have call successors, (0), 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 852 [2024-11-16 04:13:13,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:13,371 INFO L225 Difference]: With dead ends: 11888 [2024-11-16 04:13:13,371 INFO L226 Difference]: Without dead ends: 6275 [2024-11-16 04:13:13,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:13,379 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 85 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:13,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 109 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:13:13,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6275 states. [2024-11-16 04:13:13,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6275 to 6275. [2024-11-16 04:13:13,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6275 states, 6274 states have (on average 1.047019445329933) internal successors, (6569), 6274 states have internal predecessors, (6569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:13,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6275 states to 6275 states and 6569 transitions. [2024-11-16 04:13:13,502 INFO L78 Accepts]: Start accepts. Automaton has 6275 states and 6569 transitions. Word has length 852 [2024-11-16 04:13:13,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:13,503 INFO L471 AbstractCegarLoop]: Abstraction has 6275 states and 6569 transitions. [2024-11-16 04:13:13,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 2 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:13,503 INFO L276 IsEmpty]: Start isEmpty. Operand 6275 states and 6569 transitions. [2024-11-16 04:13:13,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 861 [2024-11-16 04:13:13,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:13,535 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:13:13,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:13:13,536 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:13,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:13,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1490101599, now seen corresponding path program 1 times [2024-11-16 04:13:13,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:13,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146366345] [2024-11-16 04:13:13,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:13,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:14,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1307 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2024-11-16 04:13:14,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:14,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146366345] [2024-11-16 04:13:14,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146366345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:14,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:14,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:14,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504551284] [2024-11-16 04:13:14,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:14,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:14,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:14,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:14,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:14,808 INFO L87 Difference]: Start difference. First operand 6275 states and 6569 transitions. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:15,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:15,561 INFO L93 Difference]: Finished difference Result 11888 states and 12467 transitions. [2024-11-16 04:13:15,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:15,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 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 860 [2024-11-16 04:13:15,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:15,579 INFO L225 Difference]: With dead ends: 11888 [2024-11-16 04:13:15,579 INFO L226 Difference]: Without dead ends: 6275 [2024-11-16 04:13:15,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:15,585 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 226 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:15,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 382 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:13:15,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6275 states. [2024-11-16 04:13:15,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6275 to 6275. [2024-11-16 04:13:15,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6275 states, 6274 states have (on average 1.0416002550207204) internal successors, (6535), 6274 states have internal predecessors, (6535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:15,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6275 states to 6275 states and 6535 transitions. [2024-11-16 04:13:15,669 INFO L78 Accepts]: Start accepts. Automaton has 6275 states and 6535 transitions. Word has length 860 [2024-11-16 04:13:15,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:15,670 INFO L471 AbstractCegarLoop]: Abstraction has 6275 states and 6535 transitions. [2024-11-16 04:13:15,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:15,671 INFO L276 IsEmpty]: Start isEmpty. Operand 6275 states and 6535 transitions. [2024-11-16 04:13:15,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1123 [2024-11-16 04:13:15,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:15,688 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:15,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:13:15,688 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:15,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:15,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1433246751, now seen corresponding path program 1 times [2024-11-16 04:13:15,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:15,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229024641] [2024-11-16 04:13:15,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:15,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:17,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 1347 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2024-11-16 04:13:17,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:17,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229024641] [2024-11-16 04:13:17,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229024641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:17,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:17,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:13:17,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161533097] [2024-11-16 04:13:17,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:17,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:13:17,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:17,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:13:17,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:13:17,531 INFO L87 Difference]: Start difference. First operand 6275 states and 6535 transitions. Second operand has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:18,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:18,618 INFO L93 Difference]: Finished difference Result 11894 states and 12405 transitions. [2024-11-16 04:13:18,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 04:13:18,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 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 1122 [2024-11-16 04:13:18,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:18,631 INFO L225 Difference]: With dead ends: 11894 [2024-11-16 04:13:18,631 INFO L226 Difference]: Without dead ends: 6281 [2024-11-16 04:13:18,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:13:18,639 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 219 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:18,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 453 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:13:18,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2024-11-16 04:13:18,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 6275. [2024-11-16 04:13:18,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6275 states, 6274 states have (on average 1.0412814791201785) internal successors, (6533), 6274 states have internal predecessors, (6533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:18,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6275 states to 6275 states and 6533 transitions. [2024-11-16 04:13:18,715 INFO L78 Accepts]: Start accepts. Automaton has 6275 states and 6533 transitions. Word has length 1122 [2024-11-16 04:13:18,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:18,717 INFO L471 AbstractCegarLoop]: Abstraction has 6275 states and 6533 transitions. [2024-11-16 04:13:18,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:18,717 INFO L276 IsEmpty]: Start isEmpty. Operand 6275 states and 6533 transitions. [2024-11-16 04:13:18,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1138 [2024-11-16 04:13:18,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:18,733 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:18,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:13:18,733 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:18,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:18,734 INFO L85 PathProgramCache]: Analyzing trace with hash 512630750, now seen corresponding path program 1 times [2024-11-16 04:13:18,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:18,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136484211] [2024-11-16 04:13:18,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:18,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:20,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2186 backedges. 1444 proven. 0 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2024-11-16 04:13:20,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:20,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136484211] [2024-11-16 04:13:20,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136484211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:20,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:20,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:13:20,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415889285] [2024-11-16 04:13:20,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:20,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:13:20,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:20,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:13:20,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:13:20,180 INFO L87 Difference]: Start difference. First operand 6275 states and 6533 transitions. Second operand has 4 states, 4 states have (on average 167.5) internal successors, (670), 4 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:21,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:21,099 INFO L93 Difference]: Finished difference Result 12218 states and 12736 transitions. [2024-11-16 04:13:21,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:13:21,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 167.5) internal successors, (670), 4 states have internal predecessors, (670), 0 states have call successors, (0), 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 1137 [2024-11-16 04:13:21,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:21,137 INFO L225 Difference]: With dead ends: 12218 [2024-11-16 04:13:21,137 INFO L226 Difference]: Without dead ends: 6605 [2024-11-16 04:13:21,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:13:21,142 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 120 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:21,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 574 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:13:21,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6605 states. [2024-11-16 04:13:21,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6605 to 6605. [2024-11-16 04:13:21,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6605 states, 6604 states have (on average 1.0393700787401574) internal successors, (6864), 6604 states have internal predecessors, (6864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:21,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6605 states to 6605 states and 6864 transitions. [2024-11-16 04:13:21,228 INFO L78 Accepts]: Start accepts. Automaton has 6605 states and 6864 transitions. Word has length 1137 [2024-11-16 04:13:21,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:21,230 INFO L471 AbstractCegarLoop]: Abstraction has 6605 states and 6864 transitions. [2024-11-16 04:13:21,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 167.5) internal successors, (670), 4 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:21,231 INFO L276 IsEmpty]: Start isEmpty. Operand 6605 states and 6864 transitions. [2024-11-16 04:13:21,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1163 [2024-11-16 04:13:21,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:21,256 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 04:13:21,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:13:21,256 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:21,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:21,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1283531869, now seen corresponding path program 1 times [2024-11-16 04:13:21,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:21,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361325397] [2024-11-16 04:13:21,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:21,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:22,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2684 backedges. 1460 proven. 0 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2024-11-16 04:13:22,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:22,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361325397] [2024-11-16 04:13:22,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361325397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:22,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:22,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:22,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411673478] [2024-11-16 04:13:22,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:22,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:22,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:22,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:22,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:22,590 INFO L87 Difference]: Start difference. First operand 6605 states and 6864 transitions. Second operand has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:23,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:23,326 INFO L93 Difference]: Finished difference Result 13538 states and 14112 transitions. [2024-11-16 04:13:23,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:23,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 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 1162 [2024-11-16 04:13:23,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:23,339 INFO L225 Difference]: With dead ends: 13538 [2024-11-16 04:13:23,340 INFO L226 Difference]: Without dead ends: 7595 [2024-11-16 04:13:23,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:23,347 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 224 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:23,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 447 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:13:23,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7595 states. [2024-11-16 04:13:23,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7595 to 7595. [2024-11-16 04:13:23,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7595 states, 7594 states have (on average 1.035159336318146) internal successors, (7861), 7594 states have internal predecessors, (7861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:23,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7595 states to 7595 states and 7861 transitions. [2024-11-16 04:13:23,499 INFO L78 Accepts]: Start accepts. Automaton has 7595 states and 7861 transitions. Word has length 1162 [2024-11-16 04:13:23,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:23,500 INFO L471 AbstractCegarLoop]: Abstraction has 7595 states and 7861 transitions. [2024-11-16 04:13:23,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:23,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7595 states and 7861 transitions. [2024-11-16 04:13:23,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1181 [2024-11-16 04:13:23,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:23,518 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2024-11-16 04:13:23,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 04:13:23,519 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:23,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:23,519 INFO L85 PathProgramCache]: Analyzing trace with hash 269096228, now seen corresponding path program 1 times [2024-11-16 04:13:23,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:23,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048494274] [2024-11-16 04:13:23,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:23,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:24,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2714 backedges. 1006 proven. 0 refuted. 0 times theorem prover too weak. 1708 trivial. 0 not checked. [2024-11-16 04:13:24,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:24,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048494274] [2024-11-16 04:13:24,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048494274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:24,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:24,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:24,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985592992] [2024-11-16 04:13:24,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:24,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:24,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:24,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:24,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:24,302 INFO L87 Difference]: Start difference. First operand 7595 states and 7861 transitions. Second operand has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:24,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:24,966 INFO L93 Difference]: Finished difference Result 16508 states and 17110 transitions. [2024-11-16 04:13:24,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:24,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 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 1180 [2024-11-16 04:13:24,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:24,982 INFO L225 Difference]: With dead ends: 16508 [2024-11-16 04:13:24,982 INFO L226 Difference]: Without dead ends: 8255 [2024-11-16 04:13:24,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:24,991 INFO L432 NwaCegarLoop]: 411 mSDtfsCounter, 147 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:24,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 419 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:13:24,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8255 states. [2024-11-16 04:13:25,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8255 to 8255. [2024-11-16 04:13:25,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8255 states, 8254 states have (on average 1.030772958565544) internal successors, (8508), 8254 states have internal predecessors, (8508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:25,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8255 states to 8255 states and 8508 transitions. [2024-11-16 04:13:25,078 INFO L78 Accepts]: Start accepts. Automaton has 8255 states and 8508 transitions. Word has length 1180 [2024-11-16 04:13:25,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:25,079 INFO L471 AbstractCegarLoop]: Abstraction has 8255 states and 8508 transitions. [2024-11-16 04:13:25,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:25,080 INFO L276 IsEmpty]: Start isEmpty. Operand 8255 states and 8508 transitions. [2024-11-16 04:13:25,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1344 [2024-11-16 04:13:25,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:25,100 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:25,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:13:25,100 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:25,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:25,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1065239998, now seen corresponding path program 1 times [2024-11-16 04:13:25,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:25,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897580111] [2024-11-16 04:13:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:25,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:26,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3638 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 3471 trivial. 0 not checked. [2024-11-16 04:13:26,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:26,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897580111] [2024-11-16 04:13:26,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897580111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:26,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:26,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:26,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115519450] [2024-11-16 04:13:26,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:26,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:26,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:26,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:26,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:26,119 INFO L87 Difference]: Start difference. First operand 8255 states and 8508 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 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) [2024-11-16 04:13:26,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:26,527 INFO L93 Difference]: Finished difference Result 8594 states and 8847 transitions. [2024-11-16 04:13:26,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:26,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 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 1343 [2024-11-16 04:13:26,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:26,541 INFO L225 Difference]: With dead ends: 8594 [2024-11-16 04:13:26,541 INFO L226 Difference]: Without dead ends: 8255 [2024-11-16 04:13:26,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:26,545 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:26,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 438 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:13:26,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8255 states. [2024-11-16 04:13:26,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8255 to 8255. [2024-11-16 04:13:26,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8255 states, 8254 states have (on average 1.0306518051853646) internal successors, (8507), 8254 states have internal predecessors, (8507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:26,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8255 states to 8255 states and 8507 transitions. [2024-11-16 04:13:26,631 INFO L78 Accepts]: Start accepts. Automaton has 8255 states and 8507 transitions. Word has length 1343 [2024-11-16 04:13:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:26,632 INFO L471 AbstractCegarLoop]: Abstraction has 8255 states and 8507 transitions. [2024-11-16 04:13:26,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 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) [2024-11-16 04:13:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand 8255 states and 8507 transitions. [2024-11-16 04:13:26,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1393 [2024-11-16 04:13:26,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:26,657 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:26,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 04:13:26,657 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:26,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:26,658 INFO L85 PathProgramCache]: Analyzing trace with hash 536271518, now seen corresponding path program 1 times [2024-11-16 04:13:26,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:26,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920628862] [2024-11-16 04:13:26,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:26,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:27,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3824 backedges. 1222 proven. 0 refuted. 0 times theorem prover too weak. 2602 trivial. 0 not checked. [2024-11-16 04:13:27,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:27,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920628862] [2024-11-16 04:13:27,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920628862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:27,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:27,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:27,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085463772] [2024-11-16 04:13:27,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:27,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:27,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:27,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:27,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:27,378 INFO L87 Difference]: Start difference. First operand 8255 states and 8507 transitions. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:28,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:28,015 INFO L93 Difference]: Finished difference Result 16178 states and 16680 transitions. [2024-11-16 04:13:28,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:28,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 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 1392 [2024-11-16 04:13:28,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:28,026 INFO L225 Difference]: With dead ends: 16178 [2024-11-16 04:13:28,026 INFO L226 Difference]: Without dead ends: 8255 [2024-11-16 04:13:28,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:28,035 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 140 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:28,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 414 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:13:28,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8255 states. [2024-11-16 04:13:28,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8255 to 7925. [2024-11-16 04:13:28,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7925 states, 7924 states have (on average 1.0254921756688542) internal successors, (8126), 7924 states have internal predecessors, (8126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:28,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7925 states to 7925 states and 8126 transitions. [2024-11-16 04:13:28,112 INFO L78 Accepts]: Start accepts. Automaton has 7925 states and 8126 transitions. Word has length 1392 [2024-11-16 04:13:28,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:28,113 INFO L471 AbstractCegarLoop]: Abstraction has 7925 states and 8126 transitions. [2024-11-16 04:13:28,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:28,114 INFO L276 IsEmpty]: Start isEmpty. Operand 7925 states and 8126 transitions. [2024-11-16 04:13:28,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1604 [2024-11-16 04:13:28,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:28,141 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:28,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 04:13:28,142 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:28,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:28,142 INFO L85 PathProgramCache]: Analyzing trace with hash 430811321, now seen corresponding path program 1 times [2024-11-16 04:13:28,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:28,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492999678] [2024-11-16 04:13:28,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:28,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 5032 backedges. 1258 proven. 0 refuted. 0 times theorem prover too weak. 3774 trivial. 0 not checked. [2024-11-16 04:13:28,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:28,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492999678] [2024-11-16 04:13:28,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492999678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:28,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:28,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:28,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694860388] [2024-11-16 04:13:28,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:28,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:28,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:28,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:28,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:28,957 INFO L87 Difference]: Start difference. First operand 7925 states and 8126 transitions. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:29,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:29,620 INFO L93 Difference]: Finished difference Result 17168 states and 17659 transitions. [2024-11-16 04:13:29,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:29,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 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 1603 [2024-11-16 04:13:29,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:29,629 INFO L225 Difference]: With dead ends: 17168 [2024-11-16 04:13:29,629 INFO L226 Difference]: Without dead ends: 9245 [2024-11-16 04:13:29,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:29,635 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 175 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:29,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 434 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:13:29,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9245 states. [2024-11-16 04:13:29,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9245 to 9245. [2024-11-16 04:13:29,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9245 states, 9244 states have (on average 1.0239073993942016) internal successors, (9465), 9244 states have internal predecessors, (9465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:29,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9245 states to 9245 states and 9465 transitions. [2024-11-16 04:13:29,721 INFO L78 Accepts]: Start accepts. Automaton has 9245 states and 9465 transitions. Word has length 1603 [2024-11-16 04:13:29,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:29,723 INFO L471 AbstractCegarLoop]: Abstraction has 9245 states and 9465 transitions. [2024-11-16 04:13:29,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:29,723 INFO L276 IsEmpty]: Start isEmpty. Operand 9245 states and 9465 transitions. [2024-11-16 04:13:29,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1766 [2024-11-16 04:13:29,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:29,751 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:29,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 04:13:29,751 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:29,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:29,752 INFO L85 PathProgramCache]: Analyzing trace with hash 620290582, now seen corresponding path program 1 times [2024-11-16 04:13:29,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:29,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368034018] [2024-11-16 04:13:29,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:29,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 6305 backedges. 4388 proven. 134 refuted. 0 times theorem prover too weak. 1783 trivial. 0 not checked. [2024-11-16 04:13:31,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:31,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368034018] [2024-11-16 04:13:31,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368034018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:13:31,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484526062] [2024-11-16 04:13:31,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:31,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:13:31,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:13:31,503 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:13:31,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:13:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:31,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 2043 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 04:13:32,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:13:35,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6305 backedges. 2527 proven. 201 refuted. 0 times theorem prover too weak. 3577 trivial. 0 not checked. [2024-11-16 04:13:35,098 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:13:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 6305 backedges. 2527 proven. 201 refuted. 0 times theorem prover too weak. 3577 trivial. 0 not checked. [2024-11-16 04:13:39,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484526062] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 04:13:39,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 04:13:39,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2024-11-16 04:13:39,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969270959] [2024-11-16 04:13:39,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 04:13:39,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 04:13:39,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:39,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 04:13:39,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:13:39,171 INFO L87 Difference]: Start difference. First operand 9245 states and 9465 transitions. Second operand has 9 states, 9 states have (on average 196.88888888888889) internal successors, (1772), 9 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:44,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:44,476 INFO L93 Difference]: Finished difference Result 32348 states and 33191 transitions. [2024-11-16 04:13:44,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 04:13:44,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 196.88888888888889) internal successors, (1772), 9 states have internal predecessors, (1772), 0 states have call successors, (0), 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 1765 [2024-11-16 04:13:44,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:44,501 INFO L225 Difference]: With dead ends: 32348 [2024-11-16 04:13:44,502 INFO L226 Difference]: Without dead ends: 23435 [2024-11-16 04:13:44,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3555 GetRequests, 3537 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2024-11-16 04:13:44,514 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 3127 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 8716 mSolverCounterSat, 580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3127 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 9296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 580 IncrementalHoareTripleChecker+Valid, 8716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:44,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3127 Valid, 140 Invalid, 9296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [580 Valid, 8716 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-16 04:13:44,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23435 states. [2024-11-16 04:13:44,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23435 to 16175. [2024-11-16 04:13:44,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16175 states, 16174 states have (on average 1.0252874984543094) internal successors, (16583), 16174 states have internal predecessors, (16583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:44,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16175 states to 16175 states and 16583 transitions. [2024-11-16 04:13:44,723 INFO L78 Accepts]: Start accepts. Automaton has 16175 states and 16583 transitions. Word has length 1765 [2024-11-16 04:13:44,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:44,723 INFO L471 AbstractCegarLoop]: Abstraction has 16175 states and 16583 transitions. [2024-11-16 04:13:44,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 196.88888888888889) internal successors, (1772), 9 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand 16175 states and 16583 transitions. [2024-11-16 04:13:44,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1859 [2024-11-16 04:13:44,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:44,760 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 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] [2024-11-16 04:13:44,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 04:13:44,960 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,SelfDestructingSolverStorable16 [2024-11-16 04:13:44,961 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:44,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:44,962 INFO L85 PathProgramCache]: Analyzing trace with hash -541190982, now seen corresponding path program 1 times [2024-11-16 04:13:44,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:44,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265152529] [2024-11-16 04:13:44,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:44,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:47,419 INFO L134 CoverageAnalysis]: Checked inductivity of 7371 backedges. 2654 proven. 156 refuted. 0 times theorem prover too weak. 4561 trivial. 0 not checked. [2024-11-16 04:13:47,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:47,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265152529] [2024-11-16 04:13:47,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265152529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:13:47,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249543725] [2024-11-16 04:13:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:47,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:13:47,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:13:47,423 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:13:47,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 04:13:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:47,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 2155 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 04:13:47,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:13:48,652 INFO L134 CoverageAnalysis]: Checked inductivity of 7371 backedges. 2810 proven. 0 refuted. 0 times theorem prover too weak. 4561 trivial. 0 not checked. [2024-11-16 04:13:48,652 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:13:48,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249543725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:48,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:13:48,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 04:13:48,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960228923] [2024-11-16 04:13:48,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:48,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:48,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:48,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:48,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:13:48,657 INFO L87 Difference]: Start difference. First operand 16175 states and 16583 transitions. Second operand has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:49,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:49,355 INFO L93 Difference]: Finished difference Result 33338 states and 34187 transitions. [2024-11-16 04:13:49,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:49,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 0 states have call successors, (0), 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 1858 [2024-11-16 04:13:49,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:49,369 INFO L225 Difference]: With dead ends: 33338 [2024-11-16 04:13:49,370 INFO L226 Difference]: Without dead ends: 17495 [2024-11-16 04:13:49,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1862 GetRequests, 1857 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:13:49,381 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 173 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:49,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 97 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:13:49,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17495 states. [2024-11-16 04:13:49,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17495 to 17495. [2024-11-16 04:13:49,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17495 states, 17494 states have (on average 1.0239510689379216) internal successors, (17913), 17494 states have internal predecessors, (17913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:49,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17495 states to 17495 states and 17913 transitions. [2024-11-16 04:13:49,564 INFO L78 Accepts]: Start accepts. Automaton has 17495 states and 17913 transitions. Word has length 1858 [2024-11-16 04:13:49,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:49,565 INFO L471 AbstractCegarLoop]: Abstraction has 17495 states and 17913 transitions. [2024-11-16 04:13:49,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:49,565 INFO L276 IsEmpty]: Start isEmpty. Operand 17495 states and 17913 transitions. [2024-11-16 04:13:49,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1967 [2024-11-16 04:13:49,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:49,592 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:49,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 04:13:49,792 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,SelfDestructingSolverStorable17 [2024-11-16 04:13:49,793 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:49,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:49,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1121293950, now seen corresponding path program 1 times [2024-11-16 04:13:49,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:49,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10201868] [2024-11-16 04:13:49,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:49,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:51,619 INFO L134 CoverageAnalysis]: Checked inductivity of 7373 backedges. 3688 proven. 0 refuted. 0 times theorem prover too weak. 3685 trivial. 0 not checked. [2024-11-16 04:13:51,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:51,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10201868] [2024-11-16 04:13:51,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10201868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:51,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:51,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:51,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181305667] [2024-11-16 04:13:51,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:51,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:51,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:51,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:51,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:51,623 INFO L87 Difference]: Start difference. First operand 17495 states and 17913 transitions. Second operand has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:52,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:52,442 INFO L93 Difference]: Finished difference Result 37628 states and 38503 transitions. [2024-11-16 04:13:52,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:52,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 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 1966 [2024-11-16 04:13:52,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:52,466 INFO L225 Difference]: With dead ends: 37628 [2024-11-16 04:13:52,467 INFO L226 Difference]: Without dead ends: 20465 [2024-11-16 04:13:52,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:52,480 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 207 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:52,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 52 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:13:52,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20465 states. [2024-11-16 04:13:52,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20465 to 18485. [2024-11-16 04:13:52,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18485 states, 18484 states have (on average 1.0233174637524345) internal successors, (18915), 18484 states have internal predecessors, (18915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:52,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18485 states to 18485 states and 18915 transitions. [2024-11-16 04:13:52,660 INFO L78 Accepts]: Start accepts. Automaton has 18485 states and 18915 transitions. Word has length 1966 [2024-11-16 04:13:52,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:52,660 INFO L471 AbstractCegarLoop]: Abstraction has 18485 states and 18915 transitions. [2024-11-16 04:13:52,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:52,661 INFO L276 IsEmpty]: Start isEmpty. Operand 18485 states and 18915 transitions. [2024-11-16 04:13:52,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2009 [2024-11-16 04:13:52,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:52,694 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 4, 4, 3, 3, 3, 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] [2024-11-16 04:13:52,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 04:13:52,694 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:52,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:52,695 INFO L85 PathProgramCache]: Analyzing trace with hash 744644998, now seen corresponding path program 1 times [2024-11-16 04:13:52,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:52,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104121190] [2024-11-16 04:13:52,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:52,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:56,055 INFO L134 CoverageAnalysis]: Checked inductivity of 8170 backedges. 5269 proven. 560 refuted. 0 times theorem prover too weak. 2341 trivial. 0 not checked. [2024-11-16 04:13:56,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:56,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104121190] [2024-11-16 04:13:56,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104121190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:13:56,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034469889] [2024-11-16 04:13:56,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:56,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:13:56,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:13:56,057 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:13:56,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 04:13:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:56,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 2333 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 04:13:56,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:13:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 8170 backedges. 4311 proven. 0 refuted. 0 times theorem prover too weak. 3859 trivial. 0 not checked. [2024-11-16 04:13:56,773 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:13:56,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034469889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:56,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:13:56,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-16 04:13:56,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987188155] [2024-11-16 04:13:56,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:56,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:56,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:56,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:56,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:13:56,777 INFO L87 Difference]: Start difference. First operand 18485 states and 18915 transitions. Second operand has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:57,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:57,463 INFO L93 Difference]: Finished difference Result 36968 states and 37833 transitions. [2024-11-16 04:13:57,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:57,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 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 2008 [2024-11-16 04:13:57,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:57,485 INFO L225 Difference]: With dead ends: 36968 [2024-11-16 04:13:57,485 INFO L226 Difference]: Without dead ends: 18815 [2024-11-16 04:13:57,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2015 GetRequests, 2010 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:13:57,502 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 263 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:57,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 432 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:13:57,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18815 states. [2024-11-16 04:13:57,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18815 to 18485. [2024-11-16 04:13:57,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18485 states, 18484 states have (on average 1.0232633629084613) internal successors, (18914), 18484 states have internal predecessors, (18914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:57,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18485 states to 18485 states and 18914 transitions. [2024-11-16 04:13:57,673 INFO L78 Accepts]: Start accepts. Automaton has 18485 states and 18914 transitions. Word has length 2008 [2024-11-16 04:13:57,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:57,674 INFO L471 AbstractCegarLoop]: Abstraction has 18485 states and 18914 transitions. [2024-11-16 04:13:57,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:57,674 INFO L276 IsEmpty]: Start isEmpty. Operand 18485 states and 18914 transitions. [2024-11-16 04:13:57,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2094 [2024-11-16 04:13:57,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:57,709 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:57,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 04:13:57,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:13:57,910 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:57,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:57,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1097193107, now seen corresponding path program 1 times [2024-11-16 04:13:57,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:57,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959597523] [2024-11-16 04:13:57,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:57,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:14:00,222 INFO L134 CoverageAnalysis]: Checked inductivity of 9403 backedges. 6605 proven. 153 refuted. 0 times theorem prover too weak. 2645 trivial. 0 not checked. [2024-11-16 04:14:00,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:14:00,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959597523] [2024-11-16 04:14:00,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959597523] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:14:00,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186743719] [2024-11-16 04:14:00,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:14:00,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:14:00,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:14:00,232 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:14:00,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 04:14:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:14:00,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 2426 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 04:14:00,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:14:00,909 INFO L134 CoverageAnalysis]: Checked inductivity of 9403 backedges. 5478 proven. 0 refuted. 0 times theorem prover too weak. 3925 trivial. 0 not checked. [2024-11-16 04:14:00,909 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:14:00,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186743719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:14:00,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:14:00,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-16 04:14:00,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981187114] [2024-11-16 04:14:00,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:14:00,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:14:00,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:14:00,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:14:00,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:14:00,913 INFO L87 Difference]: Start difference. First operand 18485 states and 18914 transitions. Second operand has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:14:01,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:14:01,655 INFO L93 Difference]: Finished difference Result 38288 states and 39223 transitions. [2024-11-16 04:14:01,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:14:01,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 0 states have call successors, (0), 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 2093 [2024-11-16 04:14:01,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:14:01,671 INFO L225 Difference]: With dead ends: 38288 [2024-11-16 04:14:01,671 INFO L226 Difference]: Without dead ends: 20135 [2024-11-16 04:14:01,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2098 GetRequests, 2093 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:14:01,682 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 221 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:14:01,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 431 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]