./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label26.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label26.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 51697d98b6eee025eed489a5e5a9715e8bd790509c01101ec53e481453ff1aa8 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 00:01:54,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 00:01:54,336 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 00:01:54,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 00:01:54,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 00:01:54,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 00:01:54,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 00:01:54,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 00:01:54,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 00:01:54,381 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 00:01:54,381 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 00:01:54,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 00:01:54,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 00:01:54,390 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 00:01:54,391 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 00:01:54,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 00:01:54,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 00:01:54,391 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 00:01:54,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 00:01:54,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 00:01:54,395 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 00:01:54,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 00:01:54,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 00:01:54,397 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 00:01:54,397 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 00:01:54,398 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 00:01:54,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 00:01:54,398 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 00:01:54,399 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 00:01:54,399 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 00:01:54,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 00:01:54,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 00:01:54,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:01:54,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 00:01:54,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 00:01:54,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 00:01:54,402 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 00:01:54,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 00:01:54,403 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 00:01:54,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 00:01:54,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 00:01:54,404 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 00:01:54,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51697d98b6eee025eed489a5e5a9715e8bd790509c01101ec53e481453ff1aa8 [2024-10-14 00:01:54,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 00:01:54,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 00:01:54,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 00:01:54,709 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 00:01:54,709 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 00:01:54,710 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label26.c [2024-10-14 00:01:56,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 00:01:56,602 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 00:01:56,604 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label26.c [2024-10-14 00:01:56,635 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928fd0544/00501cf595944084b70d6e914568457d/FLAG5735e6b3b [2024-10-14 00:01:56,652 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928fd0544/00501cf595944084b70d6e914568457d [2024-10-14 00:01:56,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 00:01:56,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 00:01:56,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 00:01:56,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 00:01:56,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 00:01:56,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:01:56" (1/1) ... [2024-10-14 00:01:56,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@afbd01d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:56, skipping insertion in model container [2024-10-14 00:01:56,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:01:56" (1/1) ... [2024-10-14 00:01:56,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 00:01:57,033 WARN L248 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/Problem18_label26.c[6456,6469] [2024-10-14 00:01:57,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:01:57,733 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 00:01:57,762 WARN L248 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/Problem18_label26.c[6456,6469] [2024-10-14 00:01:58,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:01:58,069 INFO L204 MainTranslator]: Completed translation [2024-10-14 00:01:58,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58 WrapperNode [2024-10-14 00:01:58,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 00:01:58,071 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 00:01:58,071 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 00:01:58,071 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 00:01:58,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58" (1/1) ... [2024-10-14 00:01:58,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58" (1/1) ... [2024-10-14 00:01:58,380 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4135 [2024-10-14 00:01:58,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 00:01:58,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 00:01:58,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 00:01:58,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 00:01:58,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58" (1/1) ... [2024-10-14 00:01:58,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58" (1/1) ... [2024-10-14 00:01:58,523 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58" (1/1) ... [2024-10-14 00:01:58,658 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]. [2024-10-14 00:01:58,658 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58" (1/1) ... [2024-10-14 00:01:58,658 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58" (1/1) ... [2024-10-14 00:01:58,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58" (1/1) ... [2024-10-14 00:01:58,817 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58" (1/1) ... [2024-10-14 00:01:58,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58" (1/1) ... [2024-10-14 00:01:58,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58" (1/1) ... [2024-10-14 00:01:58,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 00:01:58,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 00:01:58,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 00:01:58,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 00:01:58,918 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58" (1/1) ... [2024-10-14 00:01:58,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:01:58,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:01:58,954 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) [2024-10-14 00:01:58,960 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 [2024-10-14 00:01:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 00:01:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 00:01:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 00:01:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 00:01:59,089 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 00:01:59,092 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 00:02:02,476 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-10-14 00:02:02,476 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 00:02:02,551 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 00:02:02,555 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 00:02:02,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:02:02 BoogieIcfgContainer [2024-10-14 00:02:02,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 00:02:02,558 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 00:02:02,559 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 00:02:02,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 00:02:02,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:01:56" (1/3) ... [2024-10-14 00:02:02,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:02:02, skipping insertion in model container [2024-10-14 00:02:02,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:58" (2/3) ... [2024-10-14 00:02:02,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:02:02, skipping insertion in model container [2024-10-14 00:02:02,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:02:02" (3/3) ... [2024-10-14 00:02:02,567 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label26.c [2024-10-14 00:02:02,590 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 00:02:02,591 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 00:02:02,693 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 00:02:02,698 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;@29f1e227, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 00:02:02,698 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 00:02:02,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:02,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 00:02:02,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:02,719 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:02,720 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:02,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:02,726 INFO L85 PathProgramCache]: Analyzing trace with hash 140250943, now seen corresponding path program 1 times [2024-10-14 00:02:02,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:02,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88511418] [2024-10-14 00:02:02,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:02,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:02,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:02:02,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:02,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88511418] [2024-10-14 00:02:02,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88511418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:02,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:02,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:02:02,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275493961] [2024-10-14 00:02:02,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:02,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 00:02:02,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:02,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 00:02:02,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:02:02,971 INFO L87 Difference]: Start difference. First operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 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 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:03,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:03,070 INFO L93 Difference]: Finished difference Result 1389 states and 2763 transitions. [2024-10-14 00:02:03,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 00:02:03,080 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-10-14 00:02:03,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:03,101 INFO L225 Difference]: With dead ends: 1389 [2024-10-14 00:02:03,101 INFO L226 Difference]: Without dead ends: 693 [2024-10-14 00:02:03,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:02:03,116 INFO L432 NwaCegarLoop]: 1317 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:03,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1317 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 00:02:03,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-10-14 00:02:03,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2024-10-14 00:02:03,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 692 states have (on average 1.903179190751445) internal successors, (1317), 692 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:03,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1317 transitions. [2024-10-14 00:02:03,220 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1317 transitions. Word has length 61 [2024-10-14 00:02:03,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:03,221 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1317 transitions. [2024-10-14 00:02:03,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:03,222 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1317 transitions. [2024-10-14 00:02:03,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 00:02:03,223 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:03,224 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:03,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 00:02:03,225 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:03,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:03,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1657877947, now seen corresponding path program 1 times [2024-10-14 00:02:03,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:03,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135375251] [2024-10-14 00:02:03,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:03,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:03,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:02:03,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:03,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135375251] [2024-10-14 00:02:03,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135375251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:03,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:03,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:03,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714753140] [2024-10-14 00:02:03,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:03,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 00:02:03,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:03,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 00:02:03,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 00:02:03,584 INFO L87 Difference]: Start difference. First operand 693 states and 1317 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:08,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:08,333 INFO L93 Difference]: Finished difference Result 2771 states and 5269 transitions. [2024-10-14 00:02:08,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 00:02:08,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-10-14 00:02:08,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:08,346 INFO L225 Difference]: With dead ends: 2771 [2024-10-14 00:02:08,346 INFO L226 Difference]: Without dead ends: 2079 [2024-10-14 00:02:08,351 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 [2024-10-14 00:02:08,352 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 2051 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3269 mSolverCounterSat, 1655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2051 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 4924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1655 IncrementalHoareTripleChecker+Valid, 3269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:08,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2051 Valid, 135 Invalid, 4924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1655 Valid, 3269 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-10-14 00:02:08,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2024-10-14 00:02:08,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 2073. [2024-10-14 00:02:08,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 2072 states have (on average 1.5564671814671815) internal successors, (3225), 2072 states have internal predecessors, (3225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:08,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 3225 transitions. [2024-10-14 00:02:08,419 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 3225 transitions. Word has length 61 [2024-10-14 00:02:08,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:08,420 INFO L471 AbstractCegarLoop]: Abstraction has 2073 states and 3225 transitions. [2024-10-14 00:02:08,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:08,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 3225 transitions. [2024-10-14 00:02:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-10-14 00:02:08,427 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:08,427 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:08,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 00:02:08,428 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:08,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:08,429 INFO L85 PathProgramCache]: Analyzing trace with hash -22557178, now seen corresponding path program 1 times [2024-10-14 00:02:08,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:08,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265948731] [2024-10-14 00:02:08,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:08,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:09,149 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 00:02:09,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:09,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265948731] [2024-10-14 00:02:09,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265948731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:09,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:09,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:09,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920875792] [2024-10-14 00:02:09,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:09,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 00:02:09,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:09,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 00:02:09,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 00:02:09,156 INFO L87 Difference]: Start difference. First operand 2073 states and 3225 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:13,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:13,259 INFO L93 Difference]: Finished difference Result 6215 states and 9563 transitions. [2024-10-14 00:02:13,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 00:02:13,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2024-10-14 00:02:13,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:13,281 INFO L225 Difference]: With dead ends: 6215 [2024-10-14 00:02:13,282 INFO L226 Difference]: Without dead ends: 4143 [2024-10-14 00:02:13,286 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 [2024-10-14 00:02:13,288 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 1922 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4115 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 4635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 4115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:13,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1922 Valid, 645 Invalid, 4635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 4115 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-10-14 00:02:13,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2024-10-14 00:02:13,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4143. [2024-10-14 00:02:13,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 4142 states have (on average 1.2928536938676967) internal successors, (5355), 4142 states have internal predecessors, (5355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:13,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 5355 transitions. [2024-10-14 00:02:13,381 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 5355 transitions. Word has length 221 [2024-10-14 00:02:13,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:13,382 INFO L471 AbstractCegarLoop]: Abstraction has 4143 states and 5355 transitions. [2024-10-14 00:02:13,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:13,382 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 5355 transitions. [2024-10-14 00:02:13,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-10-14 00:02:13,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:13,388 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:13,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 00:02:13,389 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:13,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:13,389 INFO L85 PathProgramCache]: Analyzing trace with hash -2084432813, now seen corresponding path program 1 times [2024-10-14 00:02:13,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:13,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119554952] [2024-10-14 00:02:13,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:13,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:13,846 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-14 00:02:13,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:13,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119554952] [2024-10-14 00:02:13,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119554952] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:13,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:13,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:13,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023163559] [2024-10-14 00:02:13,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:13,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 00:02:13,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:13,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 00:02:13,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 00:02:13,852 INFO L87 Difference]: Start difference. First operand 4143 states and 5355 transitions. Second operand has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:16,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:16,469 INFO L93 Difference]: Finished difference Result 9028 states and 11974 transitions. [2024-10-14 00:02:16,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 00:02:16,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 310 [2024-10-14 00:02:16,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:16,488 INFO L225 Difference]: With dead ends: 9028 [2024-10-14 00:02:16,488 INFO L226 Difference]: Without dead ends: 5523 [2024-10-14 00:02:16,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 00:02:16,498 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 529 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2591 mSolverCounterSat, 867 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 3458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 867 IncrementalHoareTripleChecker+Valid, 2591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:16,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 633 Invalid, 3458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [867 Valid, 2591 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-14 00:02:16,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5523 states. [2024-10-14 00:02:16,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5523 to 5523. [2024-10-14 00:02:16,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5523 states, 5522 states have (on average 1.161173487866715) internal successors, (6412), 5522 states have internal predecessors, (6412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:16,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5523 states to 5523 states and 6412 transitions. [2024-10-14 00:02:16,605 INFO L78 Accepts]: Start accepts. Automaton has 5523 states and 6412 transitions. Word has length 310 [2024-10-14 00:02:16,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:16,606 INFO L471 AbstractCegarLoop]: Abstraction has 5523 states and 6412 transitions. [2024-10-14 00:02:16,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:16,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5523 states and 6412 transitions. [2024-10-14 00:02:16,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 943 [2024-10-14 00:02:16,628 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:16,628 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:16,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 00:02:16,629 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:16,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:16,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1350387774, now seen corresponding path program 1 times [2024-10-14 00:02:16,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:16,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877405383] [2024-10-14 00:02:16,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:16,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:17,927 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2024-10-14 00:02:17,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:17,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877405383] [2024-10-14 00:02:17,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877405383] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:17,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:17,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:02:17,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342408841] [2024-10-14 00:02:17,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:17,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:17,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:17,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:17,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:17,934 INFO L87 Difference]: Start difference. First operand 5523 states and 6412 transitions. Second operand has 3 states, 3 states have (on average 193.0) internal successors, (579), 2 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:19,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:19,875 INFO L93 Difference]: Finished difference Result 11735 states and 13893 transitions. [2024-10-14 00:02:19,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:19,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 2 states have internal predecessors, (579), 0 states have call successors, (0), 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 942 [2024-10-14 00:02:19,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:19,900 INFO L225 Difference]: With dead ends: 11735 [2024-10-14 00:02:19,900 INFO L226 Difference]: Without dead ends: 6903 [2024-10-14 00:02:19,909 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 [2024-10-14 00:02:19,910 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 192 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:19,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 342 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1877 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 00:02:19,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6903 states. [2024-10-14 00:02:20,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6903 to 6903. [2024-10-14 00:02:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6903 states, 6902 states have (on average 1.1469139379889888) internal successors, (7916), 6902 states have internal predecessors, (7916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:20,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6903 states to 6903 states and 7916 transitions. [2024-10-14 00:02:20,047 INFO L78 Accepts]: Start accepts. Automaton has 6903 states and 7916 transitions. Word has length 942 [2024-10-14 00:02:20,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:20,050 INFO L471 AbstractCegarLoop]: Abstraction has 6903 states and 7916 transitions. [2024-10-14 00:02:20,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 2 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:20,050 INFO L276 IsEmpty]: Start isEmpty. Operand 6903 states and 7916 transitions. [2024-10-14 00:02:20,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1009 [2024-10-14 00:02:20,077 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:20,078 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:20,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 00:02:20,079 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:20,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:20,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1207414407, now seen corresponding path program 1 times [2024-10-14 00:02:20,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:20,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276950577] [2024-10-14 00:02:20,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:20,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2024-10-14 00:02:21,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:21,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276950577] [2024-10-14 00:02:21,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276950577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:21,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:21,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:02:21,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149752503] [2024-10-14 00:02:21,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:21,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:21,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:21,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:21,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:21,005 INFO L87 Difference]: Start difference. First operand 6903 states and 7916 transitions. Second operand has 3 states, 3 states have (on average 195.66666666666666) internal successors, (587), 2 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:23,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:23,084 INFO L93 Difference]: Finished difference Result 15185 states and 18152 transitions. [2024-10-14 00:02:23,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:23,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 195.66666666666666) internal successors, (587), 2 states have internal predecessors, (587), 0 states have call successors, (0), 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 1008 [2024-10-14 00:02:23,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:23,118 INFO L225 Difference]: With dead ends: 15185 [2024-10-14 00:02:23,119 INFO L226 Difference]: Without dead ends: 8973 [2024-10-14 00:02:23,127 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 [2024-10-14 00:02:23,128 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 226 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 2270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:23,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 387 Invalid, 2270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 00:02:23,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8973 states. [2024-10-14 00:02:23,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8973 to 8973. [2024-10-14 00:02:23,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8973 states, 8972 states have (on average 1.133860900579581) internal successors, (10173), 8972 states have internal predecessors, (10173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:23,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8973 states to 8973 states and 10173 transitions. [2024-10-14 00:02:23,272 INFO L78 Accepts]: Start accepts. Automaton has 8973 states and 10173 transitions. Word has length 1008 [2024-10-14 00:02:23,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:23,274 INFO L471 AbstractCegarLoop]: Abstraction has 8973 states and 10173 transitions. [2024-10-14 00:02:23,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.66666666666666) internal successors, (587), 2 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:23,274 INFO L276 IsEmpty]: Start isEmpty. Operand 8973 states and 10173 transitions. [2024-10-14 00:02:23,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1029 [2024-10-14 00:02:23,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:23,285 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:23,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 00:02:23,285 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:23,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:23,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1636298069, now seen corresponding path program 1 times [2024-10-14 00:02:23,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:23,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243404442] [2024-10-14 00:02:23,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:23,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:24,214 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2024-10-14 00:02:24,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:24,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243404442] [2024-10-14 00:02:24,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243404442] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:24,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:24,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:24,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416259331] [2024-10-14 00:02:24,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:24,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:24,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:24,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:24,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:24,218 INFO L87 Difference]: Start difference. First operand 8973 states and 10173 transitions. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:26,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:26,318 INFO L93 Difference]: Finished difference Result 24155 states and 27677 transitions. [2024-10-14 00:02:26,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:26,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 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 1028 [2024-10-14 00:02:26,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:26,361 INFO L225 Difference]: With dead ends: 24155 [2024-10-14 00:02:26,361 INFO L226 Difference]: Without dead ends: 15873 [2024-10-14 00:02:26,372 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 [2024-10-14 00:02:26,376 INFO L432 NwaCegarLoop]: 1118 mSDtfsCounter, 713 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:26,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 1124 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 00:02:26,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15873 states. [2024-10-14 00:02:26,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15873 to 13803. [2024-10-14 00:02:26,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13803 states, 13802 states have (on average 1.1233154615273149) internal successors, (15504), 13802 states have internal predecessors, (15504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:26,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13803 states to 13803 states and 15504 transitions. [2024-10-14 00:02:26,613 INFO L78 Accepts]: Start accepts. Automaton has 13803 states and 15504 transitions. Word has length 1028 [2024-10-14 00:02:26,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:26,614 INFO L471 AbstractCegarLoop]: Abstraction has 13803 states and 15504 transitions. [2024-10-14 00:02:26,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:26,616 INFO L276 IsEmpty]: Start isEmpty. Operand 13803 states and 15504 transitions. [2024-10-14 00:02:26,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1047 [2024-10-14 00:02:26,624 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:26,626 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:26,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 00:02:26,626 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:26,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:26,627 INFO L85 PathProgramCache]: Analyzing trace with hash -971528130, now seen corresponding path program 1 times [2024-10-14 00:02:26,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:26,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757023891] [2024-10-14 00:02:26,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:26,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:28,144 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2024-10-14 00:02:28,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:28,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757023891] [2024-10-14 00:02:28,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757023891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:28,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:28,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:28,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659185732] [2024-10-14 00:02:28,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:28,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:28,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:28,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:28,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:28,148 INFO L87 Difference]: Start difference. First operand 13803 states and 15504 transitions. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:29,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:29,799 INFO L93 Difference]: Finished difference Result 26225 states and 29614 transitions. [2024-10-14 00:02:29,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:29,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1046 [2024-10-14 00:02:29,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:29,823 INFO L225 Difference]: With dead ends: 26225 [2024-10-14 00:02:29,823 INFO L226 Difference]: Without dead ends: 13113 [2024-10-14 00:02:29,837 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 [2024-10-14 00:02:29,838 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 735 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:29,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 777 Invalid, 2166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 00:02:29,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13113 states. [2024-10-14 00:02:29,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13113 to 13113. [2024-10-14 00:02:29,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13113 states, 13112 states have (on average 1.107077486272117) internal successors, (14516), 13112 states have internal predecessors, (14516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:30,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13113 states to 13113 states and 14516 transitions. [2024-10-14 00:02:30,007 INFO L78 Accepts]: Start accepts. Automaton has 13113 states and 14516 transitions. Word has length 1046 [2024-10-14 00:02:30,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:30,008 INFO L471 AbstractCegarLoop]: Abstraction has 13113 states and 14516 transitions. [2024-10-14 00:02:30,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:30,009 INFO L276 IsEmpty]: Start isEmpty. Operand 13113 states and 14516 transitions. [2024-10-14 00:02:30,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1084 [2024-10-14 00:02:30,020 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:30,020 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:30,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 00:02:30,021 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:30,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:30,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1913967, now seen corresponding path program 1 times [2024-10-14 00:02:30,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:30,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6432856] [2024-10-14 00:02:30,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:30,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:31,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 684 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-10-14 00:02:31,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:31,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6432856] [2024-10-14 00:02:31,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6432856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:31,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:31,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:31,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524927846] [2024-10-14 00:02:31,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:31,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:31,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:31,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:31,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:31,376 INFO L87 Difference]: Start difference. First operand 13113 states and 14516 transitions. Second operand has 3 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:33,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:33,231 INFO L93 Difference]: Finished difference Result 33125 states and 37080 transitions. [2024-10-14 00:02:33,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:33,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 0 states have call successors, (0), 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 1083 [2024-10-14 00:02:33,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:33,266 INFO L225 Difference]: With dead ends: 33125 [2024-10-14 00:02:33,267 INFO L226 Difference]: Without dead ends: 20703 [2024-10-14 00:02:33,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:33,283 INFO L432 NwaCegarLoop]: 1008 mSDtfsCounter, 575 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 2330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:33,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1013 Invalid, 2330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 00:02:33,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20703 states. [2024-10-14 00:02:33,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20703 to 20013. [2024-10-14 00:02:33,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20013 states, 20012 states have (on average 1.091994803118129) internal successors, (21853), 20012 states have internal predecessors, (21853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:33,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20013 states to 20013 states and 21853 transitions. [2024-10-14 00:02:33,529 INFO L78 Accepts]: Start accepts. Automaton has 20013 states and 21853 transitions. Word has length 1083 [2024-10-14 00:02:33,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:33,530 INFO L471 AbstractCegarLoop]: Abstraction has 20013 states and 21853 transitions. [2024-10-14 00:02:33,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:33,530 INFO L276 IsEmpty]: Start isEmpty. Operand 20013 states and 21853 transitions. [2024-10-14 00:02:33,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1119 [2024-10-14 00:02:33,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:33,594 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:33,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 00:02:33,595 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:33,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:33,599 INFO L85 PathProgramCache]: Analyzing trace with hash 22663704, now seen corresponding path program 1 times [2024-10-14 00:02:33,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:33,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906879856] [2024-10-14 00:02:33,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:33,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:34,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 542 proven. 537 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-10-14 00:02:34,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:34,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906879856] [2024-10-14 00:02:34,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906879856] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:02:34,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065096225] [2024-10-14 00:02:34,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:34,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:02:34,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:02:34,976 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) [2024-10-14 00:02:34,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 00:02:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:35,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:02:35,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:02:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 631 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2024-10-14 00:02:35,553 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:02:35,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065096225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:35,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 00:02:35,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-14 00:02:35,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040598079] [2024-10-14 00:02:35,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:35,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:35,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:35,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:35,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 00:02:35,556 INFO L87 Difference]: Start difference. First operand 20013 states and 21853 transitions. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 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) [2024-10-14 00:02:37,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:37,366 INFO L93 Difference]: Finished difference Result 43475 states and 47842 transitions. [2024-10-14 00:02:37,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:37,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 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 1118 [2024-10-14 00:02:37,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:37,397 INFO L225 Difference]: With dead ends: 43475 [2024-10-14 00:02:37,397 INFO L226 Difference]: Without dead ends: 21393 [2024-10-14 00:02:37,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1123 GetRequests, 1118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 00:02:37,416 INFO L432 NwaCegarLoop]: 965 mSDtfsCounter, 649 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 1704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:37,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 970 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 00:02:37,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21393 states. [2024-10-14 00:02:37,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21393 to 18633. [2024-10-14 00:02:37,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18633 states, 18632 states have (on average 1.0498067840274796) internal successors, (19560), 18632 states have internal predecessors, (19560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:37,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18633 states to 18633 states and 19560 transitions. [2024-10-14 00:02:37,631 INFO L78 Accepts]: Start accepts. Automaton has 18633 states and 19560 transitions. Word has length 1118 [2024-10-14 00:02:37,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:37,632 INFO L471 AbstractCegarLoop]: Abstraction has 18633 states and 19560 transitions. [2024-10-14 00:02:37,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 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) [2024-10-14 00:02:37,632 INFO L276 IsEmpty]: Start isEmpty. Operand 18633 states and 19560 transitions. [2024-10-14 00:02:37,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1272 [2024-10-14 00:02:37,649 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:37,650 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:37,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 00:02:37,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 00:02:37,851 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:37,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:37,852 INFO L85 PathProgramCache]: Analyzing trace with hash -204755560, now seen corresponding path program 1 times [2024-10-14 00:02:37,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:37,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199857487] [2024-10-14 00:02:37,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:37,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:40,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 1137 proven. 330 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-10-14 00:02:40,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:40,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199857487] [2024-10-14 00:02:40,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199857487] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:02:40,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81661141] [2024-10-14 00:02:40,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:40,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:02:40,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:02:40,075 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) [2024-10-14 00:02:40,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 00:02:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:40,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:02:40,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:02:40,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 658 proven. 0 refuted. 0 times theorem prover too weak. 1019 trivial. 0 not checked. [2024-10-14 00:02:40,602 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:02:40,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81661141] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:40,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 00:02:40,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-14 00:02:40,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427537812] [2024-10-14 00:02:40,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:40,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:40,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:40,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:40,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 00:02:40,606 INFO L87 Difference]: Start difference. First operand 18633 states and 19560 transitions. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 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) [2024-10-14 00:02:42,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:42,208 INFO L93 Difference]: Finished difference Result 39335 states and 41517 transitions. [2024-10-14 00:02:42,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:42,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 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 1271 [2024-10-14 00:02:42,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:42,232 INFO L225 Difference]: With dead ends: 39335 [2024-10-14 00:02:42,233 INFO L226 Difference]: Without dead ends: 21393 [2024-10-14 00:02:42,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1277 GetRequests, 1270 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 00:02:42,249 INFO L432 NwaCegarLoop]: 943 mSDtfsCounter, 604 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:42,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 949 Invalid, 1906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 00:02:42,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21393 states. [2024-10-14 00:02:42,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21393 to 21393. [2024-10-14 00:02:42,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21393 states, 21392 states have (on average 1.0464659685863875) internal successors, (22386), 21392 states have internal predecessors, (22386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:42,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21393 states to 21393 states and 22386 transitions. [2024-10-14 00:02:42,457 INFO L78 Accepts]: Start accepts. Automaton has 21393 states and 22386 transitions. Word has length 1271 [2024-10-14 00:02:42,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:42,458 INFO L471 AbstractCegarLoop]: Abstraction has 21393 states and 22386 transitions. [2024-10-14 00:02:42,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 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) [2024-10-14 00:02:42,459 INFO L276 IsEmpty]: Start isEmpty. Operand 21393 states and 22386 transitions. [2024-10-14 00:02:42,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1300 [2024-10-14 00:02:42,479 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:42,480 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:42,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 00:02:42,680 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,SelfDestructingSolverStorable10 [2024-10-14 00:02:42,681 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:42,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:42,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1158458915, now seen corresponding path program 1 times [2024-10-14 00:02:42,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:42,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684182349] [2024-10-14 00:02:42,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:42,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:43,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1704 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2024-10-14 00:02:43,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:43,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684182349] [2024-10-14 00:02:43,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684182349] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:43,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:43,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:43,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320658699] [2024-10-14 00:02:43,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:43,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:43,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:43,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:43,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:43,414 INFO L87 Difference]: Start difference. First operand 21393 states and 22386 transitions. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 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) [2024-10-14 00:02:45,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:45,211 INFO L93 Difference]: Finished difference Result 48995 states and 51613 transitions. [2024-10-14 00:02:45,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:45,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 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 1299 [2024-10-14 00:02:45,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:45,251 INFO L225 Difference]: With dead ends: 48995 [2024-10-14 00:02:45,251 INFO L226 Difference]: Without dead ends: 27603 [2024-10-14 00:02:45,260 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 [2024-10-14 00:02:45,261 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 604 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1835 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:45,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 288 Invalid, 2045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1835 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 00:02:45,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27603 states. [2024-10-14 00:02:45,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27603 to 27603. [2024-10-14 00:02:45,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27603 states, 27602 states have (on average 1.0446706760379683) internal successors, (28835), 27602 states have internal predecessors, (28835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:45,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27603 states to 27603 states and 28835 transitions. [2024-10-14 00:02:45,612 INFO L78 Accepts]: Start accepts. Automaton has 27603 states and 28835 transitions. Word has length 1299 [2024-10-14 00:02:45,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:45,614 INFO L471 AbstractCegarLoop]: Abstraction has 27603 states and 28835 transitions. [2024-10-14 00:02:45,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 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) [2024-10-14 00:02:45,614 INFO L276 IsEmpty]: Start isEmpty. Operand 27603 states and 28835 transitions. [2024-10-14 00:02:45,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1303 [2024-10-14 00:02:45,649 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:45,650 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:45,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 00:02:45,651 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:45,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:45,652 INFO L85 PathProgramCache]: Analyzing trace with hash -2135270822, now seen corresponding path program 1 times [2024-10-14 00:02:45,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:45,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302639055] [2024-10-14 00:02:45,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:45,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:47,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2044 backedges. 1235 proven. 664 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-14 00:02:47,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:47,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302639055] [2024-10-14 00:02:47,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302639055] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:02:47,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573779967] [2024-10-14 00:02:47,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:47,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:02:47,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:02:47,301 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) [2024-10-14 00:02:47,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 00:02:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:47,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 1515 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:02:47,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:02:47,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2044 backedges. 1261 proven. 0 refuted. 0 times theorem prover too weak. 783 trivial. 0 not checked. [2024-10-14 00:02:47,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:02:47,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573779967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:47,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 00:02:47,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-10-14 00:02:47,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853395393] [2024-10-14 00:02:47,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:47,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:47,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:47,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:47,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 00:02:47,782 INFO L87 Difference]: Start difference. First operand 27603 states and 28835 transitions. Second operand has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:49,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:49,548 INFO L93 Difference]: Finished difference Result 63485 states and 66839 transitions. [2024-10-14 00:02:49,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:49,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 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 1302 [2024-10-14 00:02:49,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:49,598 INFO L225 Difference]: With dead ends: 63485 [2024-10-14 00:02:49,598 INFO L226 Difference]: Without dead ends: 36573 [2024-10-14 00:02:49,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1308 GetRequests, 1302 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 00:02:49,619 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 637 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:49,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 129 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 00:02:49,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36573 states. [2024-10-14 00:02:49,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36573 to 36573. [2024-10-14 00:02:49,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36573 states, 36572 states have (on average 1.0460734988515805) internal successors, (38257), 36572 states have internal predecessors, (38257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:49,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36573 states to 36573 states and 38257 transitions. [2024-10-14 00:02:49,956 INFO L78 Accepts]: Start accepts. Automaton has 36573 states and 38257 transitions. Word has length 1302 [2024-10-14 00:02:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:49,957 INFO L471 AbstractCegarLoop]: Abstraction has 36573 states and 38257 transitions. [2024-10-14 00:02:49,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:49,957 INFO L276 IsEmpty]: Start isEmpty. Operand 36573 states and 38257 transitions. [2024-10-14 00:02:49,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1326 [2024-10-14 00:02:49,979 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:49,980 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:49,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 00:02:50,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:02:50,180 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:50,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:50,181 INFO L85 PathProgramCache]: Analyzing trace with hash 338150320, now seen corresponding path program 1 times [2024-10-14 00:02:50,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:50,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518622256] [2024-10-14 00:02:50,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:50,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2019 backedges. 1287 proven. 0 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2024-10-14 00:02:50,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:50,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518622256] [2024-10-14 00:02:50,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518622256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:50,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:50,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:50,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498171360] [2024-10-14 00:02:50,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:50,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:50,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:50,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:50,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:50,935 INFO L87 Difference]: Start difference. First operand 36573 states and 38257 transitions. Second operand has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:52,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:52,385 INFO L93 Difference]: Finished difference Result 72455 states and 75822 transitions. [2024-10-14 00:02:52,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:52,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 0 states have call successors, (0), 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 1325 [2024-10-14 00:02:52,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:52,421 INFO L225 Difference]: With dead ends: 72455 [2024-10-14 00:02:52,422 INFO L226 Difference]: Without dead ends: 36573 [2024-10-14 00:02:52,441 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 [2024-10-14 00:02:52,443 INFO L432 NwaCegarLoop]: 923 mSDtfsCounter, 504 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:52,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 928 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 00:02:52,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36573 states. [2024-10-14 00:02:52,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36573 to 35883. [2024-10-14 00:02:52,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35883 states, 35882 states have (on average 1.0409397469483306) internal successors, (37351), 35882 states have internal predecessors, (37351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:52,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35883 states to 35883 states and 37351 transitions. [2024-10-14 00:02:52,752 INFO L78 Accepts]: Start accepts. Automaton has 35883 states and 37351 transitions. Word has length 1325 [2024-10-14 00:02:52,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:52,753 INFO L471 AbstractCegarLoop]: Abstraction has 35883 states and 37351 transitions. [2024-10-14 00:02:52,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:52,753 INFO L276 IsEmpty]: Start isEmpty. Operand 35883 states and 37351 transitions. [2024-10-14 00:02:52,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1376 [2024-10-14 00:02:52,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:52,770 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:52,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 00:02:52,770 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:52,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:52,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2069293280, now seen corresponding path program 1 times [2024-10-14 00:02:52,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:52,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039758840] [2024-10-14 00:02:52,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:52,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:53,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2170 backedges. 1387 proven. 0 refuted. 0 times theorem prover too weak. 783 trivial. 0 not checked. [2024-10-14 00:02:53,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:53,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039758840] [2024-10-14 00:02:53,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039758840] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:53,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:53,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:53,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084584636] [2024-10-14 00:02:53,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:53,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:53,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:53,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:53,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:53,613 INFO L87 Difference]: Start difference. First operand 35883 states and 37351 transitions. Second operand has 3 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:55,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:55,473 INFO L93 Difference]: Finished difference Result 81425 states and 85048 transitions. [2024-10-14 00:02:55,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:55,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 0 states have call successors, (0), 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 1375 [2024-10-14 00:02:55,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:55,523 INFO L225 Difference]: With dead ends: 81425 [2024-10-14 00:02:55,523 INFO L226 Difference]: Without dead ends: 45543 [2024-10-14 00:02:55,553 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 [2024-10-14 00:02:55,554 INFO L432 NwaCegarLoop]: 951 mSDtfsCounter, 452 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 2020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:55,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 957 Invalid, 2020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 1780 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 00:02:55,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45543 states. [2024-10-14 00:02:56,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45543 to 45543. [2024-10-14 00:02:56,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45543 states, 45542 states have (on average 1.0375697158666726) internal successors, (47253), 45542 states have internal predecessors, (47253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:56,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45543 states to 45543 states and 47253 transitions. [2024-10-14 00:02:56,107 INFO L78 Accepts]: Start accepts. Automaton has 45543 states and 47253 transitions. Word has length 1375 [2024-10-14 00:02:56,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:56,108 INFO L471 AbstractCegarLoop]: Abstraction has 45543 states and 47253 transitions. [2024-10-14 00:02:56,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:56,108 INFO L276 IsEmpty]: Start isEmpty. Operand 45543 states and 47253 transitions. [2024-10-14 00:02:56,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1405 [2024-10-14 00:02:56,126 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:56,126 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:56,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 00:02:56,127 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:56,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:56,127 INFO L85 PathProgramCache]: Analyzing trace with hash -382580708, now seen corresponding path program 1 times [2024-10-14 00:02:56,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:56,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879276954] [2024-10-14 00:02:56,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:56,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:57,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2343 backedges. 1546 proven. 0 refuted. 0 times theorem prover too weak. 797 trivial. 0 not checked. [2024-10-14 00:02:57,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:57,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879276954] [2024-10-14 00:02:57,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879276954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:57,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:57,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:57,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086491351] [2024-10-14 00:02:57,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:57,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 00:02:57,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:57,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 00:02:57,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 00:02:57,315 INFO L87 Difference]: Start difference. First operand 45543 states and 47253 transitions. Second operand has 4 states, 4 states have (on average 205.25) internal successors, (821), 3 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:59,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:59,551 INFO L93 Difference]: Finished difference Result 90395 states and 93814 transitions. [2024-10-14 00:02:59,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 00:02:59,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 205.25) internal successors, (821), 3 states have internal predecessors, (821), 0 states have call successors, (0), 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 1404 [2024-10-14 00:02:59,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:59,600 INFO L225 Difference]: With dead ends: 90395 [2024-10-14 00:02:59,600 INFO L226 Difference]: Without dead ends: 45543 [2024-10-14 00:02:59,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 00:02:59,626 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 757 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2742 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 2811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:59,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 276 Invalid, 2811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2742 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 00:02:59,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45543 states. [2024-10-14 00:03:00,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45543 to 45543. [2024-10-14 00:03:00,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45543 states, 45542 states have (on average 1.0375038426068244) internal successors, (47250), 45542 states have internal predecessors, (47250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:00,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45543 states to 45543 states and 47250 transitions. [2024-10-14 00:03:00,238 INFO L78 Accepts]: Start accepts. Automaton has 45543 states and 47250 transitions. Word has length 1404 [2024-10-14 00:03:00,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:00,239 INFO L471 AbstractCegarLoop]: Abstraction has 45543 states and 47250 transitions. [2024-10-14 00:03:00,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 205.25) internal successors, (821), 3 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:00,239 INFO L276 IsEmpty]: Start isEmpty. Operand 45543 states and 47250 transitions. [2024-10-14 00:03:00,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1411 [2024-10-14 00:03:00,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:00,254 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:03:00,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 00:03:00,255 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:00,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:00,255 INFO L85 PathProgramCache]: Analyzing trace with hash -996353257, now seen corresponding path program 1 times [2024-10-14 00:03:00,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:00,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367727582] [2024-10-14 00:03:00,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:00,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:02,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2552 backedges. 865 proven. 1361 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-10-14 00:03:02,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:02,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367727582] [2024-10-14 00:03:02,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367727582] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:03:02,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224558551] [2024-10-14 00:03:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:02,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:03:02,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:03:02,188 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) [2024-10-14 00:03:02,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 00:03:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:02,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 1649 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:03:02,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:03:03,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2552 backedges. 1487 proven. 0 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2024-10-14 00:03:03,057 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:03:03,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224558551] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:03,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 00:03:03,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-14 00:03:03,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709913906] [2024-10-14 00:03:03,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:03,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:03:03,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:03,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:03:03,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 00:03:03,061 INFO L87 Difference]: Start difference. First operand 45543 states and 47250 transitions. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:04,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:04,955 INFO L93 Difference]: Finished difference Result 86945 states and 90306 transitions. [2024-10-14 00:03:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:03:04,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 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 1410 [2024-10-14 00:03:04,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:05,010 INFO L225 Difference]: With dead ends: 86945 [2024-10-14 00:03:05,010 INFO L226 Difference]: Without dead ends: 42093 [2024-10-14 00:03:05,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1417 GetRequests, 1410 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 00:03:05,019 INFO L432 NwaCegarLoop]: 883 mSDtfsCounter, 566 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:05,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 889 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1614 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 00:03:05,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42093 states. [2024-10-14 00:03:05,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42093 to 40713. [2024-10-14 00:03:05,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40713 states, 40712 states have (on average 1.0281735114953823) internal successors, (41859), 40712 states have internal predecessors, (41859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:05,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40713 states to 40713 states and 41859 transitions. [2024-10-14 00:03:05,341 INFO L78 Accepts]: Start accepts. Automaton has 40713 states and 41859 transitions. Word has length 1410 [2024-10-14 00:03:05,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:05,341 INFO L471 AbstractCegarLoop]: Abstraction has 40713 states and 41859 transitions. [2024-10-14 00:03:05,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:05,342 INFO L276 IsEmpty]: Start isEmpty. Operand 40713 states and 41859 transitions. [2024-10-14 00:03:05,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1509 [2024-10-14 00:03:05,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:05,363 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:03:05,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 00:03:05,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-14 00:03:05,564 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:05,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:05,565 INFO L85 PathProgramCache]: Analyzing trace with hash 2141537642, now seen corresponding path program 1 times [2024-10-14 00:03:05,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:05,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118983373] [2024-10-14 00:03:05,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:05,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:06,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2164 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 1865 trivial. 0 not checked. [2024-10-14 00:03:06,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:06,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118983373] [2024-10-14 00:03:06,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118983373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:06,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:03:06,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:03:06,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039383500] [2024-10-14 00:03:06,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:06,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:03:06,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:06,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:03:06,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:06,812 INFO L87 Difference]: Start difference. First operand 40713 states and 41859 transitions. Second operand has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:07,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:07,765 INFO L93 Difference]: Finished difference Result 41410 states and 42556 transitions. [2024-10-14 00:03:07,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:03:07,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 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 1508 [2024-10-14 00:03:07,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:07,800 INFO L225 Difference]: With dead ends: 41410 [2024-10-14 00:03:07,800 INFO L226 Difference]: Without dead ends: 40713 [2024-10-14 00:03:07,809 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 [2024-10-14 00:03:07,809 INFO L432 NwaCegarLoop]: 983 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:07,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 989 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 00:03:07,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40713 states. [2024-10-14 00:03:08,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40713 to 40713. [2024-10-14 00:03:08,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40713 states, 40712 states have (on average 1.028099823147966) internal successors, (41856), 40712 states have internal predecessors, (41856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:08,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40713 states to 40713 states and 41856 transitions. [2024-10-14 00:03:08,124 INFO L78 Accepts]: Start accepts. Automaton has 40713 states and 41856 transitions. Word has length 1508 [2024-10-14 00:03:08,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:08,125 INFO L471 AbstractCegarLoop]: Abstraction has 40713 states and 41856 transitions. [2024-10-14 00:03:08,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:08,126 INFO L276 IsEmpty]: Start isEmpty. Operand 40713 states and 41856 transitions. [2024-10-14 00:03:08,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1536 [2024-10-14 00:03:08,151 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:08,152 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:03:08,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 00:03:08,152 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:08,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:08,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1230559609, now seen corresponding path program 1 times [2024-10-14 00:03:08,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:08,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173598201] [2024-10-14 00:03:08,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:08,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:08,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2235 backedges. 658 proven. 0 refuted. 0 times theorem prover too weak. 1577 trivial. 0 not checked. [2024-10-14 00:03:08,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:08,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173598201] [2024-10-14 00:03:08,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173598201] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:08,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:03:08,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:03:08,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217847896] [2024-10-14 00:03:08,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:08,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:03:08,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:08,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:03:08,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:08,842 INFO L87 Difference]: Start difference. First operand 40713 states and 41856 transitions. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 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)