./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label28.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem12_label28.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 659b37265952a16fb6d0be01d182392fcf6fa60a0b92fef60d1f2fbbad338d83 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 10:26:23,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 10:26:24,042 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 10:26:24,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 10:26:24,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 10:26:24,092 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 10:26:24,093 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 10:26:24,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 10:26:24,094 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 10:26:24,095 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 10:26:24,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 10:26:24,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 10:26:24,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 10:26:24,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 10:26:24,099 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 10:26:24,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 10:26:24,100 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 10:26:24,100 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 10:26:24,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 10:26:24,100 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 10:26:24,101 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 10:26:24,103 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 10:26:24,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 10:26:24,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 10:26:24,104 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 10:26:24,104 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 10:26:24,105 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 10:26:24,105 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 10:26:24,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 10:26:24,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 10:26:24,106 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 10:26:24,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 10:26:24,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:26:24,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 10:26:24,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 10:26:24,107 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 10:26:24,108 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 10:26:24,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 10:26:24,108 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 10:26:24,109 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 10:26:24,110 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 10:26:24,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 10:26:24,110 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 659b37265952a16fb6d0be01d182392fcf6fa60a0b92fef60d1f2fbbad338d83 [2024-11-18 10:26:24,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 10:26:24,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 10:26:24,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 10:26:24,401 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 10:26:24,402 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 10:26:24,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label28.c [2024-11-18 10:26:25,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 10:26:26,325 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 10:26:26,327 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label28.c [2024-11-18 10:26:26,362 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1666543be/94df7cb6c5f041318b5bd883597d799c/FLAG785bfe5fc [2024-11-18 10:26:26,381 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1666543be/94df7cb6c5f041318b5bd883597d799c [2024-11-18 10:26:26,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 10:26:26,386 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 10:26:26,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 10:26:26,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 10:26:26,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 10:26:26,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:26:26" (1/1) ... [2024-11-18 10:26:26,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@227b882d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:26, skipping insertion in model container [2024-11-18 10:26:26,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:26:26" (1/1) ... [2024-11-18 10:26:26,495 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 10:26:26,767 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label28.c[2824,2837] [2024-11-18 10:26:27,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:26:27,595 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 10:26:27,616 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label28.c[2824,2837] [2024-11-18 10:26:28,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:26:28,099 INFO L204 MainTranslator]: Completed translation [2024-11-18 10:26:28,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28 WrapperNode [2024-11-18 10:26:28,100 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 10:26:28,104 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 10:26:28,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 10:26:28,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 10:26:28,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28" (1/1) ... [2024-11-18 10:26:28,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28" (1/1) ... [2024-11-18 10:26:28,391 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2024-11-18 10:26:28,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 10:26:28,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 10:26:28,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 10:26:28,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 10:26:28,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28" (1/1) ... [2024-11-18 10:26:28,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28" (1/1) ... [2024-11-18 10:26:28,442 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28" (1/1) ... [2024-11-18 10:26:28,661 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 10:26:28,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28" (1/1) ... [2024-11-18 10:26:28,662 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28" (1/1) ... [2024-11-18 10:26:28,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28" (1/1) ... [2024-11-18 10:26:28,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28" (1/1) ... [2024-11-18 10:26:28,884 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28" (1/1) ... [2024-11-18 10:26:28,901 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28" (1/1) ... [2024-11-18 10:26:28,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 10:26:28,945 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 10:26:28,945 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 10:26:28,946 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 10:26:28,947 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28" (1/1) ... [2024-11-18 10:26:28,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:26:28,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:26:28,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 10:26:28,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 10:26:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 10:26:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 10:26:29,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 10:26:29,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 10:26:29,099 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 10:26:29,100 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 10:26:33,417 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-18 10:26:33,417 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 10:26:33,461 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 10:26:33,461 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 10:26:33,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:26:33 BoogieIcfgContainer [2024-11-18 10:26:33,462 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 10:26:33,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 10:26:33,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 10:26:33,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 10:26:33,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:26:26" (1/3) ... [2024-11-18 10:26:33,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f109d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:26:33, skipping insertion in model container [2024-11-18 10:26:33,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:28" (2/3) ... [2024-11-18 10:26:33,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f109d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:26:33, skipping insertion in model container [2024-11-18 10:26:33,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:26:33" (3/3) ... [2024-11-18 10:26:33,471 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label28.c [2024-11-18 10:26:33,487 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 10:26:33,487 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 10:26:33,578 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 10:26:33,586 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;@51196ebe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 10:26:33,587 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 10:26:33,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:33,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-18 10:26:33,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:26:33,604 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] [2024-11-18 10:26:33,604 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:26:33,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:26:33,610 INFO L85 PathProgramCache]: Analyzing trace with hash -279853278, now seen corresponding path program 1 times [2024-11-18 10:26:33,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:26:33,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710019292] [2024-11-18 10:26:33,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:26:33,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:26:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:26:33,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:26:33,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:26:33,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710019292] [2024-11-18 10:26:33,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710019292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:26:33,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:26:33,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:26:33,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523731826] [2024-11-18 10:26:33,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:26:33,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:26:33,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:26:33,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:26:33,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:26:33,928 INFO L87 Difference]: Start difference. First operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:37,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:26:37,541 INFO L93 Difference]: Finished difference Result 2404 states and 4645 transitions. [2024-11-18 10:26:37,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:26:37,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2024-11-18 10:26:37,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:26:37,573 INFO L225 Difference]: With dead ends: 2404 [2024-11-18 10:26:37,573 INFO L226 Difference]: Without dead ends: 1506 [2024-11-18 10:26:37,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:26:37,585 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 800 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:26:37,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 525 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-18 10:26:37,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-11-18 10:26:37,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1506. [2024-11-18 10:26:37,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 1.6066445182724252) internal successors, (2418), 1505 states have internal predecessors, (2418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:37,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2418 transitions. [2024-11-18 10:26:37,713 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2418 transitions. Word has length 20 [2024-11-18 10:26:37,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:26:37,714 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2418 transitions. [2024-11-18 10:26:37,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:37,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2418 transitions. [2024-11-18 10:26:37,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-18 10:26:37,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:26:37,718 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 10:26:37,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 10:26:37,719 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:26:37,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:26:37,719 INFO L85 PathProgramCache]: Analyzing trace with hash 523294247, now seen corresponding path program 1 times [2024-11-18 10:26:37,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:26:37,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557716830] [2024-11-18 10:26:37,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:26:37,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:26:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:26:38,037 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:26:38,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:26:38,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557716830] [2024-11-18 10:26:38,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557716830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:26:38,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:26:38,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:26:38,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604581965] [2024-11-18 10:26:38,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:26:38,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:26:38,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:26:38,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:26:38,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:26:38,046 INFO L87 Difference]: Start difference. First operand 1506 states and 2418 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:41,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:26:41,164 INFO L93 Difference]: Finished difference Result 4512 states and 7249 transitions. [2024-11-18 10:26:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:26:41,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-18 10:26:41,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:26:41,176 INFO L225 Difference]: With dead ends: 4512 [2024-11-18 10:26:41,177 INFO L226 Difference]: Without dead ends: 3008 [2024-11-18 10:26:41,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:26:41,181 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 774 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-18 10:26:41,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 449 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-18 10:26:41,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2024-11-18 10:26:41,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 3008. [2024-11-18 10:26:41,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 3007 states have (on average 1.4156967076820752) internal successors, (4257), 3007 states have internal predecessors, (4257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:41,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 4257 transitions. [2024-11-18 10:26:41,244 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 4257 transitions. Word has length 95 [2024-11-18 10:26:41,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:26:41,245 INFO L471 AbstractCegarLoop]: Abstraction has 3008 states and 4257 transitions. [2024-11-18 10:26:41,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:41,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 4257 transitions. [2024-11-18 10:26:41,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-18 10:26:41,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:26:41,248 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 10:26:41,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 10:26:41,249 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:26:41,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:26:41,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1367340322, now seen corresponding path program 1 times [2024-11-18 10:26:41,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:26:41,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819921297] [2024-11-18 10:26:41,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:26:41,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:26:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:26:41,584 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:26:41,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:26:41,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819921297] [2024-11-18 10:26:41,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819921297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:26:41,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:26:41,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:26:41,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189839541] [2024-11-18 10:26:41,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:26:41,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:26:41,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:26:41,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:26:41,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:26:41,587 INFO L87 Difference]: Start difference. First operand 3008 states and 4257 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:45,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:26:45,824 INFO L93 Difference]: Finished difference Result 9769 states and 13601 transitions. [2024-11-18 10:26:45,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:26:45,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2024-11-18 10:26:45,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:26:45,852 INFO L225 Difference]: With dead ends: 9769 [2024-11-18 10:26:45,852 INFO L226 Difference]: Without dead ends: 6763 [2024-11-18 10:26:45,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 10:26:45,860 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 2182 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 4712 mSolverCounterSat, 747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2182 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 5459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 4712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-18 10:26:45,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2182 Valid, 164 Invalid, 5459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [747 Valid, 4712 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-18 10:26:45,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6763 states. [2024-11-18 10:26:45,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6763 to 6763. [2024-11-18 10:26:45,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6763 states, 6762 states have (on average 1.3510795622596865) internal successors, (9136), 6762 states have internal predecessors, (9136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:46,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6763 states to 6763 states and 9136 transitions. [2024-11-18 10:26:46,003 INFO L78 Accepts]: Start accepts. Automaton has 6763 states and 9136 transitions. Word has length 97 [2024-11-18 10:26:46,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:26:46,004 INFO L471 AbstractCegarLoop]: Abstraction has 6763 states and 9136 transitions. [2024-11-18 10:26:46,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:46,004 INFO L276 IsEmpty]: Start isEmpty. Operand 6763 states and 9136 transitions. [2024-11-18 10:26:46,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-18 10:26:46,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:26:46,011 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 10:26:46,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 10:26:46,012 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:26:46,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:26:46,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1860048002, now seen corresponding path program 1 times [2024-11-18 10:26:46,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:26:46,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956462031] [2024-11-18 10:26:46,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:26:46,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:26:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:26:46,427 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:26:46,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:26:46,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956462031] [2024-11-18 10:26:46,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956462031] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:26:46,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499879229] [2024-11-18 10:26:46,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:26:46,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:26:46,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:26:46,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:26:46,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 10:26:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:26:46,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:26:46,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:26:46,799 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-18 10:26:46,800 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:26:46,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499879229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:26:46,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:26:46,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-18 10:26:46,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971145042] [2024-11-18 10:26:46,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:26:46,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:26:46,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:26:46,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:26:46,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 10:26:46,804 INFO L87 Difference]: Start difference. First operand 6763 states and 9136 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:49,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:26:49,279 INFO L93 Difference]: Finished difference Result 15777 states and 21149 transitions. [2024-11-18 10:26:49,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:26:49,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2024-11-18 10:26:49,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:26:49,308 INFO L225 Difference]: With dead ends: 15777 [2024-11-18 10:26:49,308 INFO L226 Difference]: Without dead ends: 9767 [2024-11-18 10:26:49,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 10:26:49,318 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 716 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 2851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:26:49,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 156 Invalid, 2851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-18 10:26:49,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9767 states. [2024-11-18 10:26:49,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9767 to 9767. [2024-11-18 10:26:49,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9767 states, 9766 states have (on average 1.255785377841491) internal successors, (12264), 9766 states have internal predecessors, (12264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:49,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9767 states to 9767 states and 12264 transitions. [2024-11-18 10:26:49,479 INFO L78 Accepts]: Start accepts. Automaton has 9767 states and 12264 transitions. Word has length 161 [2024-11-18 10:26:49,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:26:49,480 INFO L471 AbstractCegarLoop]: Abstraction has 9767 states and 12264 transitions. [2024-11-18 10:26:49,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:49,480 INFO L276 IsEmpty]: Start isEmpty. Operand 9767 states and 12264 transitions. [2024-11-18 10:26:49,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-18 10:26:49,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:26:49,483 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:26:49,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 10:26:49,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:26:49,685 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:26:49,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:26:49,686 INFO L85 PathProgramCache]: Analyzing trace with hash -943611789, now seen corresponding path program 1 times [2024-11-18 10:26:49,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:26:49,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42536635] [2024-11-18 10:26:49,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:26:49,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:26:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:26:49,961 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:26:49,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:26:49,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42536635] [2024-11-18 10:26:49,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42536635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:26:49,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:26:49,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:26:49,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764402902] [2024-11-18 10:26:49,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:26:49,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:26:49,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:26:49,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:26:49,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:26:49,964 INFO L87 Difference]: Start difference. First operand 9767 states and 12264 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:26:52,966 INFO L93 Difference]: Finished difference Result 21822 states and 27290 transitions. [2024-11-18 10:26:52,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:26:52,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2024-11-18 10:26:52,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:26:53,014 INFO L225 Difference]: With dead ends: 21822 [2024-11-18 10:26:53,015 INFO L226 Difference]: Without dead ends: 12771 [2024-11-18 10:26:53,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:26:53,031 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 702 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 3315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:26:53,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 612 Invalid, 3315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 3049 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-18 10:26:53,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12771 states. [2024-11-18 10:26:53,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12771 to 12020. [2024-11-18 10:26:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12020 states, 12019 states have (on average 1.2085032032615026) internal successors, (14525), 12019 states have internal predecessors, (14525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:53,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12020 states to 12020 states and 14525 transitions. [2024-11-18 10:26:53,262 INFO L78 Accepts]: Start accepts. Automaton has 12020 states and 14525 transitions. Word has length 168 [2024-11-18 10:26:53,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:26:53,263 INFO L471 AbstractCegarLoop]: Abstraction has 12020 states and 14525 transitions. [2024-11-18 10:26:53,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:53,263 INFO L276 IsEmpty]: Start isEmpty. Operand 12020 states and 14525 transitions. [2024-11-18 10:26:53,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-18 10:26:53,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:26:53,266 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:26:53,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 10:26:53,267 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:26:53,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:26:53,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1947593425, now seen corresponding path program 1 times [2024-11-18 10:26:53,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:26:53,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544742637] [2024-11-18 10:26:53,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:26:53,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:26:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:26:53,434 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-18 10:26:53,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:26:53,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544742637] [2024-11-18 10:26:53,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544742637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:26:53,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:26:53,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:26:53,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070938248] [2024-11-18 10:26:53,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:26:53,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:26:53,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:26:53,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:26:53,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:26:53,441 INFO L87 Difference]: Start difference. First operand 12020 states and 14525 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:56,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:26:56,101 INFO L93 Difference]: Finished difference Result 27793 states and 34552 transitions. [2024-11-18 10:26:56,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:26:56,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2024-11-18 10:26:56,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:26:56,133 INFO L225 Difference]: With dead ends: 27793 [2024-11-18 10:26:56,134 INFO L226 Difference]: Without dead ends: 16526 [2024-11-18 10:26:56,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:26:56,145 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 766 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 626 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 2844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 626 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:26:56,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 495 Invalid, 2844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [626 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-18 10:26:56,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16526 states. [2024-11-18 10:26:56,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16526 to 12020. [2024-11-18 10:26:56,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12020 states, 12019 states have (on average 1.2085032032615026) internal successors, (14525), 12019 states have internal predecessors, (14525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:56,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12020 states to 12020 states and 14525 transitions. [2024-11-18 10:26:56,323 INFO L78 Accepts]: Start accepts. Automaton has 12020 states and 14525 transitions. Word has length 232 [2024-11-18 10:26:56,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:26:56,324 INFO L471 AbstractCegarLoop]: Abstraction has 12020 states and 14525 transitions. [2024-11-18 10:26:56,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:56,325 INFO L276 IsEmpty]: Start isEmpty. Operand 12020 states and 14525 transitions. [2024-11-18 10:26:56,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-18 10:26:56,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:26:56,327 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:26:56,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 10:26:56,328 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:26:56,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:26:56,329 INFO L85 PathProgramCache]: Analyzing trace with hash 732612298, now seen corresponding path program 1 times [2024-11-18 10:26:56,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:26:56,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700304635] [2024-11-18 10:26:56,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:26:56,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:26:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:26:56,540 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-18 10:26:56,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:26:56,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700304635] [2024-11-18 10:26:56,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700304635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:26:56,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:26:56,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:26:56,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873157269] [2024-11-18 10:26:56,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:26:56,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:26:56,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:26:56,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:26:56,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:26:56,545 INFO L87 Difference]: Start difference. First operand 12020 states and 14525 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:59,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:26:59,145 INFO L93 Difference]: Finished difference Result 31550 states and 38845 transitions. [2024-11-18 10:26:59,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:26:59,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2024-11-18 10:26:59,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:26:59,181 INFO L225 Difference]: With dead ends: 31550 [2024-11-18 10:26:59,181 INFO L226 Difference]: Without dead ends: 20283 [2024-11-18 10:26:59,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:26:59,199 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 848 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:26:59,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 312 Invalid, 2775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-18 10:26:59,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20283 states. [2024-11-18 10:26:59,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20283 to 18779. [2024-11-18 10:26:59,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18779 states, 18778 states have (on average 1.1888380019171372) internal successors, (22324), 18778 states have internal predecessors, (22324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18779 states to 18779 states and 22324 transitions. [2024-11-18 10:26:59,536 INFO L78 Accepts]: Start accepts. Automaton has 18779 states and 22324 transitions. Word has length 233 [2024-11-18 10:26:59,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:26:59,537 INFO L471 AbstractCegarLoop]: Abstraction has 18779 states and 22324 transitions. [2024-11-18 10:26:59,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:26:59,537 INFO L276 IsEmpty]: Start isEmpty. Operand 18779 states and 22324 transitions. [2024-11-18 10:26:59,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-11-18 10:26:59,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:26:59,542 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2024-11-18 10:26:59,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 10:26:59,542 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:26:59,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:26:59,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1104964256, now seen corresponding path program 1 times [2024-11-18 10:26:59,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:26:59,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886731346] [2024-11-18 10:26:59,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:26:59,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:26:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:26:59,763 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-18 10:26:59,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:26:59,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886731346] [2024-11-18 10:26:59,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886731346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:26:59,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:26:59,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:26:59,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857727876] [2024-11-18 10:26:59,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:26:59,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:26:59,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:26:59,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:26:59,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:26:59,765 INFO L87 Difference]: Start difference. First operand 18779 states and 22324 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:02,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:27:02,363 INFO L93 Difference]: Finished difference Result 43564 states and 53013 transitions. [2024-11-18 10:27:02,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:27:02,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 319 [2024-11-18 10:27:02,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:27:02,409 INFO L225 Difference]: With dead ends: 43564 [2024-11-18 10:27:02,409 INFO L226 Difference]: Without dead ends: 25538 [2024-11-18 10:27:02,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:02,437 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 792 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 834 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 2909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 834 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:27:02,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 238 Invalid, 2909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [834 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-18 10:27:02,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25538 states. [2024-11-18 10:27:02,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25538 to 24787. [2024-11-18 10:27:02,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24787 states, 24786 states have (on average 1.1906721536351166) internal successors, (29512), 24786 states have internal predecessors, (29512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:02,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24787 states to 24787 states and 29512 transitions. [2024-11-18 10:27:02,943 INFO L78 Accepts]: Start accepts. Automaton has 24787 states and 29512 transitions. Word has length 319 [2024-11-18 10:27:02,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:27:02,944 INFO L471 AbstractCegarLoop]: Abstraction has 24787 states and 29512 transitions. [2024-11-18 10:27:02,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:02,945 INFO L276 IsEmpty]: Start isEmpty. Operand 24787 states and 29512 transitions. [2024-11-18 10:27:02,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-18 10:27:02,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:27:02,952 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:27:02,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 10:27:02,953 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:27:02,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:27:02,954 INFO L85 PathProgramCache]: Analyzing trace with hash 2104395386, now seen corresponding path program 1 times [2024-11-18 10:27:02,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:27:02,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735547652] [2024-11-18 10:27:02,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:27:02,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:27:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:27:03,226 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-18 10:27:03,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:27:03,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735547652] [2024-11-18 10:27:03,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735547652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:27:03,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:27:03,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:27:03,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471495266] [2024-11-18 10:27:03,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:27:03,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:27:03,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:27:03,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:27:03,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:03,234 INFO L87 Difference]: Start difference. First operand 24787 states and 29512 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:06,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:27:06,174 INFO L93 Difference]: Finished difference Result 62339 states and 74047 transitions. [2024-11-18 10:27:06,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:27:06,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 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 347 [2024-11-18 10:27:06,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:27:06,229 INFO L225 Difference]: With dead ends: 62339 [2024-11-18 10:27:06,229 INFO L226 Difference]: Without dead ends: 38305 [2024-11-18 10:27:06,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:06,247 INFO L432 NwaCegarLoop]: 1239 mSDtfsCounter, 636 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2625 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 2958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 2625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:27:06,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1246 Invalid, 2958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 2625 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-18 10:27:06,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38305 states. [2024-11-18 10:27:06,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38305 to 36803. [2024-11-18 10:27:06,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36803 states, 36802 states have (on average 1.1759958697896853) internal successors, (43279), 36802 states have internal predecessors, (43279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36803 states to 36803 states and 43279 transitions. [2024-11-18 10:27:06,809 INFO L78 Accepts]: Start accepts. Automaton has 36803 states and 43279 transitions. Word has length 347 [2024-11-18 10:27:06,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:27:06,810 INFO L471 AbstractCegarLoop]: Abstraction has 36803 states and 43279 transitions. [2024-11-18 10:27:06,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:06,810 INFO L276 IsEmpty]: Start isEmpty. Operand 36803 states and 43279 transitions. [2024-11-18 10:27:06,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-18 10:27:06,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:27:06,816 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:27:06,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 10:27:06,817 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:27:06,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:27:06,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1921264, now seen corresponding path program 1 times [2024-11-18 10:27:06,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:27:06,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764286364] [2024-11-18 10:27:06,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:27:06,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:27:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:27:07,118 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-18 10:27:07,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:27:07,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764286364] [2024-11-18 10:27:07,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764286364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:27:07,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:27:07,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:27:07,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757362886] [2024-11-18 10:27:07,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:27:07,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:27:07,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:27:07,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:27:07,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:07,121 INFO L87 Difference]: Start difference. First operand 36803 states and 43279 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:09,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:27:09,901 INFO L93 Difference]: Finished difference Result 74355 states and 87352 transitions. [2024-11-18 10:27:09,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:27:09,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 351 [2024-11-18 10:27:09,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:27:09,942 INFO L225 Difference]: With dead ends: 74355 [2024-11-18 10:27:09,942 INFO L226 Difference]: Without dead ends: 38305 [2024-11-18 10:27:09,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:09,956 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 756 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2543 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 2543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:27:09,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 412 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 2543 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-18 10:27:09,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38305 states. [2024-11-18 10:27:10,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38305 to 36803. [2024-11-18 10:27:10,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36803 states, 36802 states have (on average 1.1625998587033313) internal successors, (42786), 36802 states have internal predecessors, (42786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:10,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36803 states to 36803 states and 42786 transitions. [2024-11-18 10:27:10,301 INFO L78 Accepts]: Start accepts. Automaton has 36803 states and 42786 transitions. Word has length 351 [2024-11-18 10:27:10,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:27:10,302 INFO L471 AbstractCegarLoop]: Abstraction has 36803 states and 42786 transitions. [2024-11-18 10:27:10,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:10,303 INFO L276 IsEmpty]: Start isEmpty. Operand 36803 states and 42786 transitions. [2024-11-18 10:27:10,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-18 10:27:10,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:27:10,308 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:27:10,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 10:27:10,308 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:27:10,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:27:10,309 INFO L85 PathProgramCache]: Analyzing trace with hash 516729510, now seen corresponding path program 1 times [2024-11-18 10:27:10,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:27:10,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643830750] [2024-11-18 10:27:10,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:27:10,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:27:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:27:10,583 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-18 10:27:10,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:27:10,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643830750] [2024-11-18 10:27:10,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643830750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:27:10,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:27:10,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:27:10,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976350253] [2024-11-18 10:27:10,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:27:10,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:27:10,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:27:10,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:27:10,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:10,586 INFO L87 Difference]: Start difference. First operand 36803 states and 42786 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:13,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:27:13,531 INFO L93 Difference]: Finished difference Result 103644 states and 121164 transitions. [2024-11-18 10:27:13,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:27:13,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 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 358 [2024-11-18 10:27:13,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:27:13,592 INFO L225 Difference]: With dead ends: 103644 [2024-11-18 10:27:13,593 INFO L226 Difference]: Without dead ends: 67594 [2024-11-18 10:27:13,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:13,616 INFO L432 NwaCegarLoop]: 1262 mSDtfsCounter, 708 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2139 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 2842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 2139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:27:13,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 1270 Invalid, 2842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 2139 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-18 10:27:13,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67594 states. [2024-11-18 10:27:14,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67594 to 62337. [2024-11-18 10:27:14,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62337 states, 62336 states have (on average 1.1276790297741273) internal successors, (70295), 62336 states have internal predecessors, (70295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:14,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62337 states to 62337 states and 70295 transitions. [2024-11-18 10:27:14,159 INFO L78 Accepts]: Start accepts. Automaton has 62337 states and 70295 transitions. Word has length 358 [2024-11-18 10:27:14,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:27:14,160 INFO L471 AbstractCegarLoop]: Abstraction has 62337 states and 70295 transitions. [2024-11-18 10:27:14,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:14,160 INFO L276 IsEmpty]: Start isEmpty. Operand 62337 states and 70295 transitions. [2024-11-18 10:27:14,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2024-11-18 10:27:14,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:27:14,170 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:27:14,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 10:27:14,170 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:27:14,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:27:14,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1360971435, now seen corresponding path program 1 times [2024-11-18 10:27:14,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:27:14,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859830661] [2024-11-18 10:27:14,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:27:14,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:27:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:27:14,488 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-18 10:27:14,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:27:14,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859830661] [2024-11-18 10:27:14,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859830661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:27:14,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:27:14,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:27:14,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495824160] [2024-11-18 10:27:14,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:27:14,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:27:14,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:27:14,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:27:14,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:14,491 INFO L87 Difference]: Start difference. First operand 62337 states and 70295 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:17,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:27:17,990 INFO L93 Difference]: Finished difference Result 155463 states and 177140 transitions. [2024-11-18 10:27:17,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:27:17,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 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 441 [2024-11-18 10:27:17,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:27:18,233 INFO L225 Difference]: With dead ends: 155463 [2024-11-18 10:27:18,234 INFO L226 Difference]: Without dead ends: 89373 [2024-11-18 10:27:18,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:18,249 INFO L432 NwaCegarLoop]: 1288 mSDtfsCounter, 705 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2219 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 2839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 2219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-18 10:27:18,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 1296 Invalid, 2839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-18 10:27:18,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89373 states. [2024-11-18 10:27:19,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89373 to 87120. [2024-11-18 10:27:19,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87120 states, 87119 states have (on average 1.1091839897152171) internal successors, (96631), 87119 states have internal predecessors, (96631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:19,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87120 states to 87120 states and 96631 transitions. [2024-11-18 10:27:19,576 INFO L78 Accepts]: Start accepts. Automaton has 87120 states and 96631 transitions. Word has length 441 [2024-11-18 10:27:19,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:27:19,576 INFO L471 AbstractCegarLoop]: Abstraction has 87120 states and 96631 transitions. [2024-11-18 10:27:19,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:19,577 INFO L276 IsEmpty]: Start isEmpty. Operand 87120 states and 96631 transitions. [2024-11-18 10:27:19,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-18 10:27:19,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:27:19,587 INFO L215 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:27:19,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 10:27:19,588 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:27:19,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:27:19,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1041849173, now seen corresponding path program 1 times [2024-11-18 10:27:19,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:27:19,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952236512] [2024-11-18 10:27:19,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:27:19,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:27:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:27:19,967 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 486 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-18 10:27:19,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:27:19,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952236512] [2024-11-18 10:27:19,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952236512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:27:19,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:27:19,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:27:19,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286534307] [2024-11-18 10:27:19,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:27:19,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:27:19,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:27:19,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:27:19,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:19,970 INFO L87 Difference]: Start difference. First operand 87120 states and 96631 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:23,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:27:23,398 INFO L93 Difference]: Finished difference Result 212539 states and 237334 transitions. [2024-11-18 10:27:23,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:27:23,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 457 [2024-11-18 10:27:23,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:27:23,604 INFO L225 Difference]: With dead ends: 212539 [2024-11-18 10:27:23,604 INFO L226 Difference]: Without dead ends: 126172 [2024-11-18 10:27:23,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:23,635 INFO L432 NwaCegarLoop]: 1300 mSDtfsCounter, 661 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 2860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:27:23,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 1308 Invalid, 2860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [521 Valid, 2339 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-18 10:27:23,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126172 states. [2024-11-18 10:27:25,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126172 to 117160. [2024-11-18 10:27:25,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117160 states, 117159 states have (on average 1.0988912503520856) internal successors, (128745), 117159 states have internal predecessors, (128745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:25,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117160 states to 117160 states and 128745 transitions. [2024-11-18 10:27:25,399 INFO L78 Accepts]: Start accepts. Automaton has 117160 states and 128745 transitions. Word has length 457 [2024-11-18 10:27:25,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:27:25,399 INFO L471 AbstractCegarLoop]: Abstraction has 117160 states and 128745 transitions. [2024-11-18 10:27:25,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:25,399 INFO L276 IsEmpty]: Start isEmpty. Operand 117160 states and 128745 transitions. [2024-11-18 10:27:25,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2024-11-18 10:27:25,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:27:25,410 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:27:25,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 10:27:25,410 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:27:25,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:27:25,411 INFO L85 PathProgramCache]: Analyzing trace with hash -956832560, now seen corresponding path program 1 times [2024-11-18 10:27:25,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:27:25,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842100996] [2024-11-18 10:27:25,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:27:25,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:27:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:27:25,659 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2024-11-18 10:27:25,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:27:25,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842100996] [2024-11-18 10:27:25,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842100996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:27:25,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:27:25,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:27:25,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783736850] [2024-11-18 10:27:25,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:27:25,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:27:25,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:27:25,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:27:25,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:25,663 INFO L87 Difference]: Start difference. First operand 117160 states and 128745 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:28,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:27:28,814 INFO L93 Difference]: Finished difference Result 253844 states and 279521 transitions. [2024-11-18 10:27:28,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:27:28,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 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 511 [2024-11-18 10:27:28,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:27:28,981 INFO L225 Difference]: With dead ends: 253844 [2024-11-18 10:27:28,981 INFO L226 Difference]: Without dead ends: 137437 [2024-11-18 10:27:29,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:29,038 INFO L432 NwaCegarLoop]: 1109 mSDtfsCounter, 854 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:27:29,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 1117 Invalid, 2626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-18 10:27:29,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137437 states. [2024-11-18 10:27:30,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137437 to 136686. [2024-11-18 10:27:30,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136686 states, 136685 states have (on average 1.09308995134799) internal successors, (149409), 136685 states have internal predecessors, (149409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:30,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136686 states to 136686 states and 149409 transitions. [2024-11-18 10:27:30,977 INFO L78 Accepts]: Start accepts. Automaton has 136686 states and 149409 transitions. Word has length 511 [2024-11-18 10:27:30,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:27:30,978 INFO L471 AbstractCegarLoop]: Abstraction has 136686 states and 149409 transitions. [2024-11-18 10:27:30,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:30,978 INFO L276 IsEmpty]: Start isEmpty. Operand 136686 states and 149409 transitions. [2024-11-18 10:27:30,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2024-11-18 10:27:30,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:27:30,998 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:27:30,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 10:27:30,998 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:27:30,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:27:30,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1427759076, now seen corresponding path program 1 times [2024-11-18 10:27:30,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:27:30,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876425218] [2024-11-18 10:27:30,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:27:30,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:27:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:27:31,914 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-18 10:27:31,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:27:31,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876425218] [2024-11-18 10:27:31,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876425218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:27:31,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:27:31,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:27:31,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404898019] [2024-11-18 10:27:31,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:27:31,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:27:31,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:27:31,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:27:31,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:31,919 INFO L87 Difference]: Start difference. First operand 136686 states and 149409 transitions. Second operand has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:35,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:27:35,212 INFO L93 Difference]: Finished difference Result 297402 states and 327712 transitions. [2024-11-18 10:27:35,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:27:35,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 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 697 [2024-11-18 10:27:35,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:27:35,397 INFO L225 Difference]: With dead ends: 297402 [2024-11-18 10:27:35,398 INFO L226 Difference]: Without dead ends: 161469 [2024-11-18 10:27:35,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:35,481 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 457 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2169 mSolverCounterSat, 839 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 3008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 839 IncrementalHoareTripleChecker+Valid, 2169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:27:35,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 117 Invalid, 3008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [839 Valid, 2169 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-18 10:27:35,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161469 states. [2024-11-18 10:27:37,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161469 to 161469. [2024-11-18 10:27:37,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161469 states, 161468 states have (on average 1.1017477147174672) internal successors, (177897), 161468 states have internal predecessors, (177897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161469 states to 161469 states and 177897 transitions. [2024-11-18 10:27:37,970 INFO L78 Accepts]: Start accepts. Automaton has 161469 states and 177897 transitions. Word has length 697 [2024-11-18 10:27:37,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:27:37,970 INFO L471 AbstractCegarLoop]: Abstraction has 161469 states and 177897 transitions. [2024-11-18 10:27:37,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:27:37,971 INFO L276 IsEmpty]: Start isEmpty. Operand 161469 states and 177897 transitions. [2024-11-18 10:27:38,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 922 [2024-11-18 10:27:38,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:27:38,511 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:27:38,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 10:27:38,512 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:27:38,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:27:38,515 INFO L85 PathProgramCache]: Analyzing trace with hash 414321212, now seen corresponding path program 1 times [2024-11-18 10:27:38,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:27:38,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017571541] [2024-11-18 10:27:38,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:27:38,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:27:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:27:39,247 INFO L134 CoverageAnalysis]: Checked inductivity of 967 backedges. 556 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2024-11-18 10:27:39,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:27:39,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017571541] [2024-11-18 10:27:39,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017571541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:27:39,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:27:39,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:27:39,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783380570] [2024-11-18 10:27:39,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:27:39,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:27:39,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:27:39,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:27:39,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:27:39,250 INFO L87 Difference]: Start difference. First operand 161469 states and 177897 transitions. Second operand has 3 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)