./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label23.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 f869ff34b8d1fc9233da1bce651f8bc007d942cb0a36d4a975409aebb2d888b1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-21 22:03:27,093 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 22:03:27,138 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-21 22:03:27,142 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 22:03:27,142 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 22:03:27,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 22:03:27,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 22:03:27,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 22:03:27,172 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-21 22:03:27,172 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-21 22:03:27,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 22:03:27,173 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 22:03:27,173 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 22:03:27,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 22:03:27,173 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 22:03:27,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 22:03:27,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 22:03:27,174 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 22:03:27,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 22:03:27,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 22:03:27,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 22:03:27,177 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 22:03:27,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 22:03:27,178 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 22:03:27,178 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-21 22:03:27,178 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 22:03:27,179 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 22:03:27,179 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 22:03:27,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 22:03:27,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 22:03:27,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 22:03:27,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 22:03:27,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:03:27,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 22:03:27,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 22:03:27,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 22:03:27,182 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 22:03:27,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 22:03:27,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 22:03:27,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-21 22:03:27,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-21 22:03:27,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-21 22:03:27,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f869ff34b8d1fc9233da1bce651f8bc007d942cb0a36d4a975409aebb2d888b1 [2024-11-21 22:03:27,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 22:03:27,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 22:03:27,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 22:03:27,431 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 22:03:27,431 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 22:03:27,432 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label23.c [2024-11-21 22:03:28,699 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-21 22:03:28,928 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 22:03:28,929 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label23.c [2024-11-21 22:03:28,945 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36e825b64/629f6afc29aa4aee89573d09a8922693/FLAGff3b73e10 [2024-11-21 22:03:28,959 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36e825b64/629f6afc29aa4aee89573d09a8922693 [2024-11-21 22:03:28,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 22:03:28,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 22:03:28,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 22:03:28,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 22:03:28,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 22:03:28,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:03:28" (1/1) ... [2024-11-21 22:03:28,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f10fb4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:28, skipping insertion in model container [2024-11-21 22:03:28,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:03:28" (1/1) ... [2024-11-21 22:03:29,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 22:03:29,189 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label23.c[9364,9377] [2024-11-21 22:03:29,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:03:29,332 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 22:03:29,359 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label23.c[9364,9377] [2024-11-21 22:03:29,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:03:29,463 INFO L204 MainTranslator]: Completed translation [2024-11-21 22:03:29,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29 WrapperNode [2024-11-21 22:03:29,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 22:03:29,465 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 22:03:29,465 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 22:03:29,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 22:03:29,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29" (1/1) ... [2024-11-21 22:03:29,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29" (1/1) ... [2024-11-21 22:03:29,582 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000 [2024-11-21 22:03:29,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 22:03:29,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 22:03:29,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 22:03:29,583 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 22:03:29,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29" (1/1) ... [2024-11-21 22:03:29,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29" (1/1) ... [2024-11-21 22:03:29,619 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29" (1/1) ... [2024-11-21 22:03:29,653 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]. [2024-11-21 22:03:29,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29" (1/1) ... [2024-11-21 22:03:29,654 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29" (1/1) ... [2024-11-21 22:03:29,678 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29" (1/1) ... [2024-11-21 22:03:29,684 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29" (1/1) ... [2024-11-21 22:03:29,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29" (1/1) ... [2024-11-21 22:03:29,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29" (1/1) ... [2024-11-21 22:03:29,731 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 22:03:29,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 22:03:29,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 22:03:29,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 22:03:29,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29" (1/1) ... [2024-11-21 22:03:29,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:03:29,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:03:29,761 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) [2024-11-21 22:03:29,766 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 [2024-11-21 22:03:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 22:03:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-21 22:03:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 22:03:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 22:03:29,846 INFO L238 CfgBuilder]: Building ICFG [2024-11-21 22:03:29,848 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 22:03:30,960 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-21 22:03:30,960 INFO L287 CfgBuilder]: Performing block encoding [2024-11-21 22:03:30,978 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 22:03:30,978 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-21 22:03:30,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:03:30 BoogieIcfgContainer [2024-11-21 22:03:30,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 22:03:30,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 22:03:30,980 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 22:03:30,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 22:03:30,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:03:28" (1/3) ... [2024-11-21 22:03:30,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8f7422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:03:30, skipping insertion in model container [2024-11-21 22:03:30,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:03:29" (2/3) ... [2024-11-21 22:03:30,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8f7422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:03:30, skipping insertion in model container [2024-11-21 22:03:30,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:03:30" (3/3) ... [2024-11-21 22:03:30,985 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label23.c [2024-11-21 22:03:30,997 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 22:03:30,997 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-21 22:03:31,059 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-21 22:03:31,064 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;@680d7974, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 22:03:31,064 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 22:03:31,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:31,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-21 22:03:31,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:31,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:31,079 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:31,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:31,084 INFO L85 PathProgramCache]: Analyzing trace with hash 962891993, now seen corresponding path program 1 times [2024-11-21 22:03:31,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:31,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069932582] [2024-11-21 22:03:31,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:31,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:03:31,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:31,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069932582] [2024-11-21 22:03:31,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069932582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:31,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:03:31,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:03:31,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640253799] [2024-11-21 22:03:31,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:31,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:03:31,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:31,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:03:31,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:03:31,472 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:32,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:32,268 INFO L93 Difference]: Finished difference Result 769 states and 1360 transitions. [2024-11-21 22:03:32,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:03:32,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-21 22:03:32,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:32,279 INFO L225 Difference]: With dead ends: 769 [2024-11-21 22:03:32,279 INFO L226 Difference]: Without dead ends: 422 [2024-11-21 22:03:32,282 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 [2024-11-21 22:03:32,284 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 175 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:32,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 163 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-21 22:03:32,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-21 22:03:32,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2024-11-21 22:03:32,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 1.5231143552311435) internal successors, (626), 411 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:32,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2024-11-21 22:03:32,338 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 65 [2024-11-21 22:03:32,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:32,339 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2024-11-21 22:03:32,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:32,339 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2024-11-21 22:03:32,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-21 22:03:32,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:32,342 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:32,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 22:03:32,342 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:32,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:32,343 INFO L85 PathProgramCache]: Analyzing trace with hash -566112933, now seen corresponding path program 1 times [2024-11-21 22:03:32,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:32,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095431894] [2024-11-21 22:03:32,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:32,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:32,484 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:03:32,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:32,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095431894] [2024-11-21 22:03:32,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095431894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:32,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:03:32,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:03:32,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274100236] [2024-11-21 22:03:32,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:32,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:03:32,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:32,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:03:32,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:03:32,490 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:33,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:33,066 INFO L93 Difference]: Finished difference Result 1194 states and 1821 transitions. [2024-11-21 22:03:33,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:03:33,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2024-11-21 22:03:33,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:33,071 INFO L225 Difference]: With dead ends: 1194 [2024-11-21 22:03:33,071 INFO L226 Difference]: Without dead ends: 784 [2024-11-21 22:03:33,073 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 [2024-11-21 22:03:33,074 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 175 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:33,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 154 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-21 22:03:33,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2024-11-21 22:03:33,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2024-11-21 22:03:33,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.3742017879948913) internal successors, (1076), 783 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:33,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1076 transitions. [2024-11-21 22:03:33,099 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1076 transitions. Word has length 131 [2024-11-21 22:03:33,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:33,099 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 1076 transitions. [2024-11-21 22:03:33,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:33,099 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1076 transitions. [2024-11-21 22:03:33,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-21 22:03:33,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:33,101 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:33,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 22:03:33,101 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:33,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:33,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1935044965, now seen corresponding path program 1 times [2024-11-21 22:03:33,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:33,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5965782] [2024-11-21 22:03:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:33,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:03:33,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:33,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5965782] [2024-11-21 22:03:33,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5965782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:33,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:03:33,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:03:33,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152739242] [2024-11-21 22:03:33,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:33,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:03:33,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:33,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:03:33,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:03:33,377 INFO L87 Difference]: Start difference. First operand 784 states and 1076 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:33,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:33,944 INFO L93 Difference]: Finished difference Result 1936 states and 2599 transitions. [2024-11-21 22:03:33,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:03:33,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-11-21 22:03:33,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:33,947 INFO L225 Difference]: With dead ends: 1936 [2024-11-21 22:03:33,947 INFO L226 Difference]: Without dead ends: 1154 [2024-11-21 22:03:33,949 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 [2024-11-21 22:03:33,949 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:33,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 190 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-21 22:03:33,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2024-11-21 22:03:33,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1153. [2024-11-21 22:03:33,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 1.2699652777777777) internal successors, (1463), 1152 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:33,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1463 transitions. [2024-11-21 22:03:33,969 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1463 transitions. Word has length 135 [2024-11-21 22:03:33,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:33,969 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1463 transitions. [2024-11-21 22:03:33,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:33,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1463 transitions. [2024-11-21 22:03:33,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-21 22:03:33,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:33,974 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:03:33,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 22:03:33,974 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:33,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:33,975 INFO L85 PathProgramCache]: Analyzing trace with hash -444441444, now seen corresponding path program 1 times [2024-11-21 22:03:33,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:33,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188680583] [2024-11-21 22:03:33,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:33,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:34,173 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:03:34,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:34,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188680583] [2024-11-21 22:03:34,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188680583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:34,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:03:34,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:03:34,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661206959] [2024-11-21 22:03:34,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:34,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:03:34,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:34,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:03:34,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:03:34,176 INFO L87 Difference]: Start difference. First operand 1153 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:34,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:34,793 INFO L93 Difference]: Finished difference Result 2679 states and 3481 transitions. [2024-11-21 22:03:34,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:03:34,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2024-11-21 22:03:34,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:34,800 INFO L225 Difference]: With dead ends: 2679 [2024-11-21 22:03:34,801 INFO L226 Difference]: Without dead ends: 1712 [2024-11-21 22:03:34,803 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 [2024-11-21 22:03:34,804 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 141 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:34,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 332 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-21 22:03:34,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2024-11-21 22:03:34,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1521. [2024-11-21 22:03:34,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 1.255921052631579) internal successors, (1909), 1520 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:34,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 1909 transitions. [2024-11-21 22:03:34,827 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 1909 transitions. Word has length 177 [2024-11-21 22:03:34,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:34,828 INFO L471 AbstractCegarLoop]: Abstraction has 1521 states and 1909 transitions. [2024-11-21 22:03:34,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:34,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 1909 transitions. [2024-11-21 22:03:34,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-21 22:03:34,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:34,830 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:34,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-21 22:03:34,831 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:34,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:34,831 INFO L85 PathProgramCache]: Analyzing trace with hash 522290920, now seen corresponding path program 1 times [2024-11-21 22:03:34,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:34,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666186758] [2024-11-21 22:03:34,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:34,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:35,067 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-21 22:03:35,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:35,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666186758] [2024-11-21 22:03:35,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666186758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:35,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:03:35,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:03:35,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738169666] [2024-11-21 22:03:35,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:35,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:03:35,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:35,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:03:35,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:03:35,070 INFO L87 Difference]: Start difference. First operand 1521 states and 1909 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:35,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:35,754 INFO L93 Difference]: Finished difference Result 3597 states and 4559 transitions. [2024-11-21 22:03:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:03:35,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2024-11-21 22:03:35,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:35,759 INFO L225 Difference]: With dead ends: 3597 [2024-11-21 22:03:35,759 INFO L226 Difference]: Without dead ends: 2078 [2024-11-21 22:03:35,760 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 [2024-11-21 22:03:35,763 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 132 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:35,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 391 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-21 22:03:35,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2024-11-21 22:03:35,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1889. [2024-11-21 22:03:35,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1888 states have (on average 1.2473516949152543) internal successors, (2355), 1888 states have internal predecessors, (2355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:35,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2355 transitions. [2024-11-21 22:03:35,789 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2355 transitions. Word has length 247 [2024-11-21 22:03:35,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:35,790 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 2355 transitions. [2024-11-21 22:03:35,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:35,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2355 transitions. [2024-11-21 22:03:35,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-21 22:03:35,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:35,794 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:35,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-21 22:03:35,795 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:35,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:35,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1609653245, now seen corresponding path program 1 times [2024-11-21 22:03:35,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:35,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770930154] [2024-11-21 22:03:35,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:35,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:36,045 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:03:36,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:36,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770930154] [2024-11-21 22:03:36,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770930154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:36,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:03:36,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:03:36,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953812742] [2024-11-21 22:03:36,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:36,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:03:36,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:36,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:03:36,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:03:36,048 INFO L87 Difference]: Start difference. First operand 1889 states and 2355 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:36,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:36,693 INFO L93 Difference]: Finished difference Result 5075 states and 6326 transitions. [2024-11-21 22:03:36,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:03:36,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 274 [2024-11-21 22:03:36,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:36,705 INFO L225 Difference]: With dead ends: 5075 [2024-11-21 22:03:36,706 INFO L226 Difference]: Without dead ends: 3188 [2024-11-21 22:03:36,708 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 [2024-11-21 22:03:36,708 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 123 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:36,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 140 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-21 22:03:36,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2024-11-21 22:03:36,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3186. [2024-11-21 22:03:36,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 3185 states have (on average 1.2160125588697017) internal successors, (3873), 3185 states have internal predecessors, (3873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:36,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 3873 transitions. [2024-11-21 22:03:36,754 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 3873 transitions. Word has length 274 [2024-11-21 22:03:36,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:36,754 INFO L471 AbstractCegarLoop]: Abstraction has 3186 states and 3873 transitions. [2024-11-21 22:03:36,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:36,755 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 3873 transitions. [2024-11-21 22:03:36,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-21 22:03:36,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:36,759 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:36,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-21 22:03:36,759 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:36,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:36,759 INFO L85 PathProgramCache]: Analyzing trace with hash 328502846, now seen corresponding path program 1 times [2024-11-21 22:03:36,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:36,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133019461] [2024-11-21 22:03:36,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:36,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:37,102 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:03:37,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:37,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133019461] [2024-11-21 22:03:37,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133019461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:37,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:03:37,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:03:37,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600231920] [2024-11-21 22:03:37,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:37,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:03:37,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:37,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:03:37,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:03:37,119 INFO L87 Difference]: Start difference. First operand 3186 states and 3873 transitions. Second operand has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:38,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:38,166 INFO L93 Difference]: Finished difference Result 10433 states and 12706 transitions. [2024-11-21 22:03:38,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:03:38,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 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 280 [2024-11-21 22:03:38,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:38,182 INFO L225 Difference]: With dead ends: 10433 [2024-11-21 22:03:38,182 INFO L226 Difference]: Without dead ends: 7249 [2024-11-21 22:03:38,186 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 [2024-11-21 22:03:38,187 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 228 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:38,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 147 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-21 22:03:38,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7249 states. [2024-11-21 22:03:38,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7249 to 7242. [2024-11-21 22:03:38,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7242 states, 7241 states have (on average 1.1959674078165998) internal successors, (8660), 7241 states have internal predecessors, (8660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:38,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7242 states to 7242 states and 8660 transitions. [2024-11-21 22:03:38,266 INFO L78 Accepts]: Start accepts. Automaton has 7242 states and 8660 transitions. Word has length 280 [2024-11-21 22:03:38,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:38,267 INFO L471 AbstractCegarLoop]: Abstraction has 7242 states and 8660 transitions. [2024-11-21 22:03:38,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:38,267 INFO L276 IsEmpty]: Start isEmpty. Operand 7242 states and 8660 transitions. [2024-11-21 22:03:38,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-21 22:03:38,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:38,272 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:38,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-21 22:03:38,273 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:38,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:38,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1580395159, now seen corresponding path program 1 times [2024-11-21 22:03:38,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:38,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61825705] [2024-11-21 22:03:38,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:38,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 157 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:03:38,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:38,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61825705] [2024-11-21 22:03:38,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61825705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:03:38,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846931884] [2024-11-21 22:03:38,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:38,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:03:38,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:03:38,971 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) [2024-11-21 22:03:38,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-21 22:03:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:39,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 22:03:39,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:03:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-21 22:03:39,420 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:03:39,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846931884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:39,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:03:39,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-21 22:03:39,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220724230] [2024-11-21 22:03:39,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:39,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:03:39,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:39,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:03:39,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-21 22:03:39,422 INFO L87 Difference]: Start difference. First operand 7242 states and 8660 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:40,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:40,239 INFO L93 Difference]: Finished difference Result 19470 states and 23084 transitions. [2024-11-21 22:03:40,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:03:40,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 283 [2024-11-21 22:03:40,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:40,266 INFO L225 Difference]: With dead ends: 19470 [2024-11-21 22:03:40,267 INFO L226 Difference]: Without dead ends: 12598 [2024-11-21 22:03:40,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-21 22:03:40,274 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 258 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:40,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 178 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-21 22:03:40,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12598 states. [2024-11-21 22:03:40,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12598 to 10010. [2024-11-21 22:03:40,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10010 states, 10009 states have (on average 1.1815366170446597) internal successors, (11826), 10009 states have internal predecessors, (11826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:40,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10010 states to 10010 states and 11826 transitions. [2024-11-21 22:03:40,398 INFO L78 Accepts]: Start accepts. Automaton has 10010 states and 11826 transitions. Word has length 283 [2024-11-21 22:03:40,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:40,398 INFO L471 AbstractCegarLoop]: Abstraction has 10010 states and 11826 transitions. [2024-11-21 22:03:40,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:40,399 INFO L276 IsEmpty]: Start isEmpty. Operand 10010 states and 11826 transitions. [2024-11-21 22:03:40,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-21 22:03:40,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:40,403 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:40,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-21 22:03:40,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:03:40,604 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:40,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:40,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1984989751, now seen corresponding path program 1 times [2024-11-21 22:03:40,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:40,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306417371] [2024-11-21 22:03:40,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:40,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:40,727 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-21 22:03:40,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:40,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306417371] [2024-11-21 22:03:40,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306417371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:40,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:03:40,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:03:40,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018391861] [2024-11-21 22:03:40,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:40,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:03:40,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:40,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:03:40,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:03:40,730 INFO L87 Difference]: Start difference. First operand 10010 states and 11826 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:41,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:41,234 INFO L93 Difference]: Finished difference Result 19648 states and 23262 transitions. [2024-11-21 22:03:41,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:03:41,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 295 [2024-11-21 22:03:41,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:41,256 INFO L225 Difference]: With dead ends: 19648 [2024-11-21 22:03:41,256 INFO L226 Difference]: Without dead ends: 10008 [2024-11-21 22:03:41,265 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 [2024-11-21 22:03:41,266 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 170 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:41,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 304 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-21 22:03:41,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10008 states. [2024-11-21 22:03:41,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10008 to 10008. [2024-11-21 22:03:41,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10008 states, 10007 states have (on average 1.1504946537423804) internal successors, (11513), 10007 states have internal predecessors, (11513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:41,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10008 states to 10008 states and 11513 transitions. [2024-11-21 22:03:41,378 INFO L78 Accepts]: Start accepts. Automaton has 10008 states and 11513 transitions. Word has length 295 [2024-11-21 22:03:41,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:41,378 INFO L471 AbstractCegarLoop]: Abstraction has 10008 states and 11513 transitions. [2024-11-21 22:03:41,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:41,379 INFO L276 IsEmpty]: Start isEmpty. Operand 10008 states and 11513 transitions. [2024-11-21 22:03:41,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-11-21 22:03:41,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:41,386 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:41,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-21 22:03:41,386 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:41,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:41,387 INFO L85 PathProgramCache]: Analyzing trace with hash 286412562, now seen corresponding path program 1 times [2024-11-21 22:03:41,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:41,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132816890] [2024-11-21 22:03:41,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:41,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:41,672 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 125 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:03:41,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:41,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132816890] [2024-11-21 22:03:41,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132816890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:03:41,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562184989] [2024-11-21 22:03:41,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:41,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:03:41,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:03:41,675 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:03:41,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 22:03:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:41,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 22:03:41,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:03:42,028 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:03:42,028 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:03:42,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562184989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:42,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:03:42,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-21 22:03:42,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959479230] [2024-11-21 22:03:42,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:42,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:03:42,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:42,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:03:42,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:03:42,030 INFO L87 Difference]: Start difference. First operand 10008 states and 11513 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:42,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:42,639 INFO L93 Difference]: Finished difference Result 20954 states and 24251 transitions. [2024-11-21 22:03:42,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:03:42,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 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 298 [2024-11-21 22:03:42,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:42,657 INFO L225 Difference]: With dead ends: 20954 [2024-11-21 22:03:42,657 INFO L226 Difference]: Without dead ends: 11316 [2024-11-21 22:03:42,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:03:42,668 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 99 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:42,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 326 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-21 22:03:42,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11316 states. [2024-11-21 22:03:42,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11316 to 11307. [2024-11-21 22:03:42,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11307 states, 11306 states have (on average 1.151689368476915) internal successors, (13021), 11306 states have internal predecessors, (13021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:42,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11307 states to 11307 states and 13021 transitions. [2024-11-21 22:03:42,774 INFO L78 Accepts]: Start accepts. Automaton has 11307 states and 13021 transitions. Word has length 298 [2024-11-21 22:03:42,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:42,774 INFO L471 AbstractCegarLoop]: Abstraction has 11307 states and 13021 transitions. [2024-11-21 22:03:42,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:42,774 INFO L276 IsEmpty]: Start isEmpty. Operand 11307 states and 13021 transitions. [2024-11-21 22:03:42,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-11-21 22:03:42,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:42,779 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:42,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-21 22:03:42,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-21 22:03:42,981 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:42,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:42,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1382301666, now seen corresponding path program 1 times [2024-11-21 22:03:42,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:42,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695525882] [2024-11-21 22:03:42,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:42,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:43,327 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-21 22:03:43,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:43,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695525882] [2024-11-21 22:03:43,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695525882] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:03:43,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21270336] [2024-11-21 22:03:43,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:43,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:03:43,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:03:43,333 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:03:43,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-21 22:03:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:43,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 22:03:43,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:03:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-21 22:03:43,738 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 22:03:45,019 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-21 22:03:45,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21270336] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-21 22:03:45,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-21 22:03:45,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2024-11-21 22:03:45,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960758523] [2024-11-21 22:03:45,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:45,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:03:45,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:45,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:03:45,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:03:45,022 INFO L87 Difference]: Start difference. First operand 11307 states and 13021 transitions. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:45,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:45,938 INFO L93 Difference]: Finished difference Result 18343 states and 21259 transitions. [2024-11-21 22:03:45,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:03:45,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 303 [2024-11-21 22:03:45,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:45,961 INFO L225 Difference]: With dead ends: 18343 [2024-11-21 22:03:45,961 INFO L226 Difference]: Without dead ends: 18341 [2024-11-21 22:03:45,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 603 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:03:45,967 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 263 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:45,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 206 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-21 22:03:45,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18341 states. [2024-11-21 22:03:46,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18341 to 12779. [2024-11-21 22:03:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12779 states, 12778 states have (on average 1.1523712631084677) internal successors, (14725), 12778 states have internal predecessors, (14725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:46,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12779 states to 12779 states and 14725 transitions. [2024-11-21 22:03:46,109 INFO L78 Accepts]: Start accepts. Automaton has 12779 states and 14725 transitions. Word has length 303 [2024-11-21 22:03:46,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:46,110 INFO L471 AbstractCegarLoop]: Abstraction has 12779 states and 14725 transitions. [2024-11-21 22:03:46,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:46,110 INFO L276 IsEmpty]: Start isEmpty. Operand 12779 states and 14725 transitions. [2024-11-21 22:03:46,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-21 22:03:46,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:46,115 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:46,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-21 22:03:46,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:03:46,316 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:46,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:46,316 INFO L85 PathProgramCache]: Analyzing trace with hash -807971748, now seen corresponding path program 1 times [2024-11-21 22:03:46,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:46,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166926335] [2024-11-21 22:03:46,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:46,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:46,674 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 55 proven. 70 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-21 22:03:46,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:46,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166926335] [2024-11-21 22:03:46,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166926335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:03:46,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688217613] [2024-11-21 22:03:46,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:46,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:03:46,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:03:46,676 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:03:46,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-21 22:03:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:46,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-21 22:03:46,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:03:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-21 22:03:46,838 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:03:46,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688217613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:46,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:03:46,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-21 22:03:46,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548638117] [2024-11-21 22:03:46,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:46,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:03:46,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:46,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:03:46,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:03:46,841 INFO L87 Difference]: Start difference. First operand 12779 states and 14725 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:47,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:47,386 INFO L93 Difference]: Finished difference Result 28131 states and 32517 transitions. [2024-11-21 22:03:47,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:03:47,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 327 [2024-11-21 22:03:47,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:47,406 INFO L225 Difference]: With dead ends: 28131 [2024-11-21 22:03:47,407 INFO L226 Difference]: Without dead ends: 15722 [2024-11-21 22:03:47,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:03:47,418 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 133 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:47,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 369 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-21 22:03:47,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15722 states. [2024-11-21 22:03:47,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15722 to 14618. [2024-11-21 22:03:47,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14618 states, 14617 states have (on average 1.1441472258329342) internal successors, (16724), 14617 states have internal predecessors, (16724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:47,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14618 states to 14618 states and 16724 transitions. [2024-11-21 22:03:47,574 INFO L78 Accepts]: Start accepts. Automaton has 14618 states and 16724 transitions. Word has length 327 [2024-11-21 22:03:47,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:47,575 INFO L471 AbstractCegarLoop]: Abstraction has 14618 states and 16724 transitions. [2024-11-21 22:03:47,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:47,575 INFO L276 IsEmpty]: Start isEmpty. Operand 14618 states and 16724 transitions. [2024-11-21 22:03:47,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-21 22:03:47,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:47,581 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:47,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-21 22:03:47,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:03:47,782 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:47,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:47,782 INFO L85 PathProgramCache]: Analyzing trace with hash 332634922, now seen corresponding path program 1 times [2024-11-21 22:03:47,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:47,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720493948] [2024-11-21 22:03:47,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:47,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:48,342 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 281 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-21 22:03:48,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:48,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720493948] [2024-11-21 22:03:48,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720493948] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:03:48,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696010649] [2024-11-21 22:03:48,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:48,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:03:48,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:03:48,345 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:03:48,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-21 22:03:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:48,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-21 22:03:48,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:03:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 362 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-21 22:03:48,681 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:03:48,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696010649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:48,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:03:48,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-21 22:03:48,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030915400] [2024-11-21 22:03:48,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:48,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:03:48,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:48,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:03:48,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:03:48,684 INFO L87 Difference]: Start difference. First operand 14618 states and 16724 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:49,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:49,132 INFO L93 Difference]: Finished difference Result 30531 states and 34952 transitions. [2024-11-21 22:03:49,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:03:49,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 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 352 [2024-11-21 22:03:49,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:49,151 INFO L225 Difference]: With dead ends: 30531 [2024-11-21 22:03:49,151 INFO L226 Difference]: Without dead ends: 16283 [2024-11-21 22:03:49,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:03:49,163 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 84 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:49,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 369 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-21 22:03:49,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16283 states. [2024-11-21 22:03:49,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16283 to 15360. [2024-11-21 22:03:49,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15360 states, 15359 states have (on average 1.1405039390585325) internal successors, (17517), 15359 states have internal predecessors, (17517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:49,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15360 states to 15360 states and 17517 transitions. [2024-11-21 22:03:49,306 INFO L78 Accepts]: Start accepts. Automaton has 15360 states and 17517 transitions. Word has length 352 [2024-11-21 22:03:49,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:49,306 INFO L471 AbstractCegarLoop]: Abstraction has 15360 states and 17517 transitions. [2024-11-21 22:03:49,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:49,306 INFO L276 IsEmpty]: Start isEmpty. Operand 15360 states and 17517 transitions. [2024-11-21 22:03:49,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-21 22:03:49,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:49,314 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:49,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-21 22:03:49,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-21 22:03:49,515 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:49,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:49,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1737705753, now seen corresponding path program 1 times [2024-11-21 22:03:49,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:49,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585815701] [2024-11-21 22:03:49,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:49,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:50,197 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 208 proven. 168 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-21 22:03:50,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:50,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585815701] [2024-11-21 22:03:50,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585815701] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:03:50,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097266551] [2024-11-21 22:03:50,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:50,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:03:50,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:03:50,200 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:03:50,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-21 22:03:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:50,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-21 22:03:50,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:03:50,526 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-21 22:03:50,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:03:50,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097266551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:50,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:03:50,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-21 22:03:50,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712394440] [2024-11-21 22:03:50,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:50,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:03:50,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:50,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:03:50,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:03:50,529 INFO L87 Difference]: Start difference. First operand 15360 states and 17517 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:50,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:50,981 INFO L93 Difference]: Finished difference Result 30720 states and 35028 transitions. [2024-11-21 22:03:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:03:50,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 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 373 [2024-11-21 22:03:50,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:50,997 INFO L225 Difference]: With dead ends: 30720 [2024-11-21 22:03:50,997 INFO L226 Difference]: Without dead ends: 15362 [2024-11-21 22:03:51,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:03:51,006 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 91 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:51,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 170 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-21 22:03:51,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15362 states. [2024-11-21 22:03:51,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15362 to 14256. [2024-11-21 22:03:51,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14256 states, 14255 states have (on average 1.1349701858996843) internal successors, (16179), 14255 states have internal predecessors, (16179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14256 states to 14256 states and 16179 transitions. [2024-11-21 22:03:51,126 INFO L78 Accepts]: Start accepts. Automaton has 14256 states and 16179 transitions. Word has length 373 [2024-11-21 22:03:51,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:51,126 INFO L471 AbstractCegarLoop]: Abstraction has 14256 states and 16179 transitions. [2024-11-21 22:03:51,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:51,127 INFO L276 IsEmpty]: Start isEmpty. Operand 14256 states and 16179 transitions. [2024-11-21 22:03:51,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-21 22:03:51,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:51,136 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-21 22:03:51,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-21 22:03:51,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:03:51,337 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:51,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:51,337 INFO L85 PathProgramCache]: Analyzing trace with hash -764587049, now seen corresponding path program 1 times [2024-11-21 22:03:51,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:51,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253667856] [2024-11-21 22:03:51,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:51,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:51,647 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 188 proven. 211 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-21 22:03:51,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:51,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253667856] [2024-11-21 22:03:51,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253667856] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:03:51,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966056078] [2024-11-21 22:03:51,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:51,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:03:51,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:03:51,650 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:03:51,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-21 22:03:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:51,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 22:03:51,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:03:51,959 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-21 22:03:51,959 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:03:51,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966056078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:03:51,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:03:51,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-21 22:03:51,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390016481] [2024-11-21 22:03:51,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:03:51,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:03:51,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:51,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:03:51,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:03:51,961 INFO L87 Difference]: Start difference. First operand 14256 states and 16179 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:52,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:03:52,459 INFO L93 Difference]: Finished difference Result 31482 states and 35888 transitions. [2024-11-21 22:03:52,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:03:52,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 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 410 [2024-11-21 22:03:52,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:03:52,478 INFO L225 Difference]: With dead ends: 31482 [2024-11-21 22:03:52,478 INFO L226 Difference]: Without dead ends: 17596 [2024-11-21 22:03:52,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:03:52,489 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 105 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:03:52,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 306 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-21 22:03:52,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17596 states. [2024-11-21 22:03:52,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17596 to 17219. [2024-11-21 22:03:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17219 states, 17218 states have (on average 1.1388082239516786) internal successors, (19608), 17218 states have internal predecessors, (19608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:52,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17219 states to 17219 states and 19608 transitions. [2024-11-21 22:03:52,697 INFO L78 Accepts]: Start accepts. Automaton has 17219 states and 19608 transitions. Word has length 410 [2024-11-21 22:03:52,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:03:52,697 INFO L471 AbstractCegarLoop]: Abstraction has 17219 states and 19608 transitions. [2024-11-21 22:03:52,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:03:52,697 INFO L276 IsEmpty]: Start isEmpty. Operand 17219 states and 19608 transitions. [2024-11-21 22:03:52,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-21 22:03:52,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:03:52,707 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:03:52,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-21 22:03:52,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:03:52,908 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:03:52,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:03:52,909 INFO L85 PathProgramCache]: Analyzing trace with hash 890840300, now seen corresponding path program 1 times [2024-11-21 22:03:52,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:03:52,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721860950] [2024-11-21 22:03:52,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:52,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:03:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 188 proven. 229 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-21 22:03:53,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:03:53,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721860950] [2024-11-21 22:03:53,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721860950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:03:53,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657006061] [2024-11-21 22:03:53,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:03:53,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:03:53,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:03:53,204 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:03:53,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-21 22:03:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:03:53,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-21 22:03:53,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:03:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 293 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:03:54,496 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 22:03:56,314 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 293 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:03:56,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657006061] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 22:03:56,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 22:03:56,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11 [2024-11-21 22:03:56,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362576035] [2024-11-21 22:03:56,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 22:03:56,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-21 22:03:56,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:03:56,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-21 22:03:56,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-21 22:03:56,316 INFO L87 Difference]: Start difference. First operand 17219 states and 19608 transitions. Second operand has 12 states, 12 states have (on average 83.33333333333333) internal successors, (1000), 11 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:01,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:04:01,490 INFO L93 Difference]: Finished difference Result 47376 states and 53733 transitions. [2024-11-21 22:04:01,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-21 22:04:01,490 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 83.33333333333333) internal successors, (1000), 11 states have internal predecessors, (1000), 0 states have call successors, (0), 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 432 [2024-11-21 22:04:01,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:04:01,573 INFO L225 Difference]: With dead ends: 47376 [2024-11-21 22:04:01,573 INFO L226 Difference]: Without dead ends: 29975 [2024-11-21 22:04:01,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=395, Invalid=1011, Unknown=0, NotChecked=0, Total=1406 [2024-11-21 22:04:01,580 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 3013 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 7374 mSolverCounterSat, 1041 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3013 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 8415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1041 IncrementalHoareTripleChecker+Valid, 7374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:04:01,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3013 Valid, 194 Invalid, 8415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1041 Valid, 7374 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-21 22:04:01,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29975 states. [2024-11-21 22:04:01,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29975 to 18668. [2024-11-21 22:04:01,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18668 states, 18667 states have (on average 1.1046767022017463) internal successors, (20621), 18667 states have internal predecessors, (20621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:01,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18668 states to 18668 states and 20621 transitions. [2024-11-21 22:04:01,786 INFO L78 Accepts]: Start accepts. Automaton has 18668 states and 20621 transitions. Word has length 432 [2024-11-21 22:04:01,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:04:01,787 INFO L471 AbstractCegarLoop]: Abstraction has 18668 states and 20621 transitions. [2024-11-21 22:04:01,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 83.33333333333333) internal successors, (1000), 11 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:01,787 INFO L276 IsEmpty]: Start isEmpty. Operand 18668 states and 20621 transitions. [2024-11-21 22:04:01,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-11-21 22:04:01,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:04:01,797 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-21 22:04:01,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-21 22:04:01,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-21 22:04:01,998 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:04:01,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:04:01,998 INFO L85 PathProgramCache]: Analyzing trace with hash -482780604, now seen corresponding path program 1 times [2024-11-21 22:04:01,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:04:01,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434500640] [2024-11-21 22:04:01,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:01,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:04:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 525 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:04:02,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:04:02,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434500640] [2024-11-21 22:04:02,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434500640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:04:02,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379006680] [2024-11-21 22:04:02,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:02,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:04:02,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:04:02,857 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:04:02,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-21 22:04:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:02,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-21 22:04:02,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:04:03,296 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 426 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-21 22:04:03,296 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:04:03,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379006680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:04:03,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:04:03,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-21 22:04:03,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528944415] [2024-11-21 22:04:03,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:04:03,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:04:03,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:04:03,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:04:03,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-21 22:04:03,298 INFO L87 Difference]: Start difference. First operand 18668 states and 20621 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:03,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:04:03,816 INFO L93 Difference]: Finished difference Result 37337 states and 41264 transitions. [2024-11-21 22:04:03,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:04:03,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 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 448 [2024-11-21 22:04:03,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:04:03,834 INFO L225 Difference]: With dead ends: 37337 [2024-11-21 22:04:03,834 INFO L226 Difference]: Without dead ends: 19039 [2024-11-21 22:04:03,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-21 22:04:03,848 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 44 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:04:03,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 355 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-21 22:04:03,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19039 states. [2024-11-21 22:04:03,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19039 to 19036. [2024-11-21 22:04:03,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19036 states, 19035 states have (on average 1.1016023115313895) internal successors, (20969), 19035 states have internal predecessors, (20969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:04,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19036 states to 19036 states and 20969 transitions. [2024-11-21 22:04:04,012 INFO L78 Accepts]: Start accepts. Automaton has 19036 states and 20969 transitions. Word has length 448 [2024-11-21 22:04:04,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:04:04,013 INFO L471 AbstractCegarLoop]: Abstraction has 19036 states and 20969 transitions. [2024-11-21 22:04:04,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:04,013 INFO L276 IsEmpty]: Start isEmpty. Operand 19036 states and 20969 transitions. [2024-11-21 22:04:04,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2024-11-21 22:04:04,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:04:04,029 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2024-11-21 22:04:04,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-21 22:04:04,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-21 22:04:04,231 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:04:04,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:04:04,232 INFO L85 PathProgramCache]: Analyzing trace with hash 743274997, now seen corresponding path program 1 times [2024-11-21 22:04:04,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:04:04,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166039648] [2024-11-21 22:04:04,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:04,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:04:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:04,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 314 proven. 516 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-11-21 22:04:04,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:04:04,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166039648] [2024-11-21 22:04:04,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166039648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:04:04,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166602723] [2024-11-21 22:04:04,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:04,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:04:04,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:04:04,622 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:04:04,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-21 22:04:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:04,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-21 22:04:04,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:04:05,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2024-11-21 22:04:05,029 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:04:05,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166602723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:04:05,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:04:05,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-21 22:04:05,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451934598] [2024-11-21 22:04:05,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:04:05,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:04:05,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:04:05,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:04:05,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:04:05,031 INFO L87 Difference]: Start difference. First operand 19036 states and 20969 transitions. Second operand has 4 states, 4 states have (on average 81.75) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:05,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:04:05,816 INFO L93 Difference]: Finished difference Result 38624 states and 42525 transitions. [2024-11-21 22:04:05,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:04:05,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 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 569 [2024-11-21 22:04:05,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:04:05,834 INFO L225 Difference]: With dead ends: 38624 [2024-11-21 22:04:05,834 INFO L226 Difference]: Without dead ends: 19774 [2024-11-21 22:04:05,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 567 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:04:05,845 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 203 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:04:05,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 127 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-21 22:04:05,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19774 states. [2024-11-21 22:04:05,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19774 to 19588. [2024-11-21 22:04:06,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19588 states, 19587 states have (on average 1.099606882115689) internal successors, (21538), 19587 states have internal predecessors, (21538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:06,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19588 states to 19588 states and 21538 transitions. [2024-11-21 22:04:06,023 INFO L78 Accepts]: Start accepts. Automaton has 19588 states and 21538 transitions. Word has length 569 [2024-11-21 22:04:06,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:04:06,023 INFO L471 AbstractCegarLoop]: Abstraction has 19588 states and 21538 transitions. [2024-11-21 22:04:06,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:06,023 INFO L276 IsEmpty]: Start isEmpty. Operand 19588 states and 21538 transitions. [2024-11-21 22:04:06,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2024-11-21 22:04:06,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:04:06,036 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:04:06,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-21 22:04:06,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-21 22:04:06,237 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:04:06,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:04:06,238 INFO L85 PathProgramCache]: Analyzing trace with hash -245713591, now seen corresponding path program 1 times [2024-11-21 22:04:06,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:04:06,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267199792] [2024-11-21 22:04:06,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:06,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:04:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 251 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-21 22:04:06,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:04:06,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267199792] [2024-11-21 22:04:06,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267199792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:04:06,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860932885] [2024-11-21 22:04:06,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:06,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:04:06,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:04:06,679 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:04:06,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-21 22:04:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:06,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-21 22:04:06,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:04:07,379 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 286 proven. 469 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-21 22:04:07,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 22:04:08,601 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 251 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-21 22:04:08,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860932885] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 22:04:08,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 22:04:08,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 9 [2024-11-21 22:04:08,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519143208] [2024-11-21 22:04:08,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 22:04:08,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-21 22:04:08,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:04:08,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-21 22:04:08,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2024-11-21 22:04:08,604 INFO L87 Difference]: Start difference. First operand 19588 states and 21538 transitions. Second operand has 10 states, 10 states have (on average 85.1) internal successors, (851), 9 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:10,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:04:10,661 INFO L93 Difference]: Finished difference Result 61129 states and 66877 transitions. [2024-11-21 22:04:10,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-21 22:04:10,662 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 85.1) internal successors, (851), 9 states have internal predecessors, (851), 0 states have call successors, (0), 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 587 [2024-11-21 22:04:10,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:04:10,700 INFO L225 Difference]: With dead ends: 61129 [2024-11-21 22:04:10,700 INFO L226 Difference]: Without dead ends: 41911 [2024-11-21 22:04:10,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1176 GetRequests, 1168 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2024-11-21 22:04:10,718 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 890 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 3179 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 3688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 3179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-21 22:04:10,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 126 Invalid, 3688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 3179 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-21 22:04:10,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41911 states. [2024-11-21 22:04:10,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41911 to 30470. [2024-11-21 22:04:11,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30470 states, 30469 states have (on average 1.0938987167284782) internal successors, (33330), 30469 states have internal predecessors, (33330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:11,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30470 states to 30470 states and 33330 transitions. [2024-11-21 22:04:11,033 INFO L78 Accepts]: Start accepts. Automaton has 30470 states and 33330 transitions. Word has length 587 [2024-11-21 22:04:11,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:04:11,033 INFO L471 AbstractCegarLoop]: Abstraction has 30470 states and 33330 transitions. [2024-11-21 22:04:11,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.1) internal successors, (851), 9 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:11,033 INFO L276 IsEmpty]: Start isEmpty. Operand 30470 states and 33330 transitions. [2024-11-21 22:04:11,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2024-11-21 22:04:11,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:04:11,047 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2024-11-21 22:04:11,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-21 22:04:11,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:04:11,248 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:04:11,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:04:11,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1548100475, now seen corresponding path program 1 times [2024-11-21 22:04:11,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:04:11,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141211666] [2024-11-21 22:04:11,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:11,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:04:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:11,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 947 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2024-11-21 22:04:11,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:04:11,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141211666] [2024-11-21 22:04:11,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141211666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:04:11,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:04:11,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:04:11,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750868116] [2024-11-21 22:04:11,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:04:11,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:04:11,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:04:11,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:04:11,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:04:11,828 INFO L87 Difference]: Start difference. First operand 30470 states and 33330 transitions. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:12,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:04:12,685 INFO L93 Difference]: Finished difference Result 71645 states and 78264 transitions. [2024-11-21 22:04:12,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:04:12,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 601 [2024-11-21 22:04:12,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:04:12,726 INFO L225 Difference]: With dead ends: 71645 [2024-11-21 22:04:12,726 INFO L226 Difference]: Without dead ends: 40621 [2024-11-21 22:04:12,748 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 [2024-11-21 22:04:12,749 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 223 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:04:12,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 56 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-21 22:04:12,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40621 states. [2024-11-21 22:04:13,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40621 to 34884. [2024-11-21 22:04:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34884 states, 34883 states have (on average 1.0912192185305163) internal successors, (38065), 34883 states have internal predecessors, (38065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:13,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34884 states to 34884 states and 38065 transitions. [2024-11-21 22:04:13,099 INFO L78 Accepts]: Start accepts. Automaton has 34884 states and 38065 transitions. Word has length 601 [2024-11-21 22:04:13,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:04:13,099 INFO L471 AbstractCegarLoop]: Abstraction has 34884 states and 38065 transitions. [2024-11-21 22:04:13,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:13,100 INFO L276 IsEmpty]: Start isEmpty. Operand 34884 states and 38065 transitions. [2024-11-21 22:04:13,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2024-11-21 22:04:13,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:04:13,117 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:04:13,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-21 22:04:13,117 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:04:13,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:04:13,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1608928017, now seen corresponding path program 1 times [2024-11-21 22:04:13,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:04:13,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626281310] [2024-11-21 22:04:13,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:13,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:04:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:13,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 829 proven. 301 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-21 22:04:13,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:04:13,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626281310] [2024-11-21 22:04:13,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626281310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:04:13,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978641986] [2024-11-21 22:04:13,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:13,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:04:13,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:04:13,970 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:04:13,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-21 22:04:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:14,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-21 22:04:14,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:04:14,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 1004 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-21 22:04:14,212 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:04:14,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978641986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:04:14,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:04:14,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-21 22:04:14,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633218517] [2024-11-21 22:04:14,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:04:14,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:04:14,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:04:14,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:04:14,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-21 22:04:14,214 INFO L87 Difference]: Start difference. First operand 34884 states and 38065 transitions. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:14,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:04:14,838 INFO L93 Difference]: Finished difference Result 69587 states and 75943 transitions. [2024-11-21 22:04:14,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:04:14,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 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 627 [2024-11-21 22:04:14,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:04:14,869 INFO L225 Difference]: With dead ends: 69587 [2024-11-21 22:04:14,869 INFO L226 Difference]: Without dead ends: 34889 [2024-11-21 22:04:14,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 634 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-21 22:04:14,887 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 67 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:04:14,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 331 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-21 22:04:14,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34889 states. [2024-11-21 22:04:15,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34889 to 34884. [2024-11-21 22:04:15,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34884 states, 34883 states have (on average 1.0784909554797466) internal successors, (37621), 34883 states have internal predecessors, (37621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:15,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34884 states to 34884 states and 37621 transitions. [2024-11-21 22:04:15,181 INFO L78 Accepts]: Start accepts. Automaton has 34884 states and 37621 transitions. Word has length 627 [2024-11-21 22:04:15,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:04:15,181 INFO L471 AbstractCegarLoop]: Abstraction has 34884 states and 37621 transitions. [2024-11-21 22:04:15,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:15,181 INFO L276 IsEmpty]: Start isEmpty. Operand 34884 states and 37621 transitions. [2024-11-21 22:04:15,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-21 22:04:15,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:04:15,198 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-21 22:04:15,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-21 22:04:15,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-21 22:04:15,398 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:04:15,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:04:15,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1421710171, now seen corresponding path program 1 times [2024-11-21 22:04:15,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:04:15,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043987950] [2024-11-21 22:04:15,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:15,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:04:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:15,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 878 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2024-11-21 22:04:15,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:04:15,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043987950] [2024-11-21 22:04:15,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043987950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:04:15,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:04:15,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:04:15,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003980692] [2024-11-21 22:04:15,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:04:15,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:04:15,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:04:15,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:04:15,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:04:15,721 INFO L87 Difference]: Start difference. First operand 34884 states and 37621 transitions. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:16,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:04:16,339 INFO L93 Difference]: Finished difference Result 71981 states and 77623 transitions. [2024-11-21 22:04:16,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:04:16,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 643 [2024-11-21 22:04:16,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:04:16,375 INFO L225 Difference]: With dead ends: 71981 [2024-11-21 22:04:16,375 INFO L226 Difference]: Without dead ends: 39309 [2024-11-21 22:04:16,396 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 [2024-11-21 22:04:16,397 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:04:16,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 61 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-21 22:04:16,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39309 states. [2024-11-21 22:04:16,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39309 to 34138. [2024-11-21 22:04:16,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34138 states, 34137 states have (on average 1.0763980431789555) internal successors, (36745), 34137 states have internal predecessors, (36745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:16,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34138 states to 34138 states and 36745 transitions. [2024-11-21 22:04:16,797 INFO L78 Accepts]: Start accepts. Automaton has 34138 states and 36745 transitions. Word has length 643 [2024-11-21 22:04:16,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:04:16,797 INFO L471 AbstractCegarLoop]: Abstraction has 34138 states and 36745 transitions. [2024-11-21 22:04:16,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:16,798 INFO L276 IsEmpty]: Start isEmpty. Operand 34138 states and 36745 transitions. [2024-11-21 22:04:16,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2024-11-21 22:04:16,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:04:16,814 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2024-11-21 22:04:16,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-21 22:04:16,814 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:04:16,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:04:16,814 INFO L85 PathProgramCache]: Analyzing trace with hash 200944737, now seen corresponding path program 1 times [2024-11-21 22:04:16,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:04:16,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412569711] [2024-11-21 22:04:16,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:16,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:04:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:17,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1434 backedges. 1099 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2024-11-21 22:04:17,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:04:17,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412569711] [2024-11-21 22:04:17,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412569711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:04:17,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:04:17,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:04:17,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734308226] [2024-11-21 22:04:17,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:04:17,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:04:17,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:04:17,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:04:17,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:04:17,141 INFO L87 Difference]: Start difference. First operand 34138 states and 36745 transitions. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:17,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:04:17,718 INFO L93 Difference]: Finished difference Result 68088 states and 73298 transitions. [2024-11-21 22:04:17,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:04:17,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 696 [2024-11-21 22:04:17,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:04:17,750 INFO L225 Difference]: With dead ends: 68088 [2024-11-21 22:04:17,751 INFO L226 Difference]: Without dead ends: 34320 [2024-11-21 22:04:17,769 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 [2024-11-21 22:04:17,770 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 61 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:04:17,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 296 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-21 22:04:17,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34320 states. [2024-11-21 22:04:18,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34320 to 33584. [2024-11-21 22:04:18,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33584 states, 33583 states have (on average 1.0676830539260935) internal successors, (35856), 33583 states have internal predecessors, (35856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:18,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33584 states to 33584 states and 35856 transitions. [2024-11-21 22:04:18,227 INFO L78 Accepts]: Start accepts. Automaton has 33584 states and 35856 transitions. Word has length 696 [2024-11-21 22:04:18,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:04:18,227 INFO L471 AbstractCegarLoop]: Abstraction has 33584 states and 35856 transitions. [2024-11-21 22:04:18,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:18,228 INFO L276 IsEmpty]: Start isEmpty. Operand 33584 states and 35856 transitions. [2024-11-21 22:04:18,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2024-11-21 22:04:18,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:04:18,254 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:04:18,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-21 22:04:18,255 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:04:18,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:04:18,255 INFO L85 PathProgramCache]: Analyzing trace with hash -807446658, now seen corresponding path program 1 times [2024-11-21 22:04:18,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:04:18,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672227135] [2024-11-21 22:04:18,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:18,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:04:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:18,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2242 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 1802 trivial. 0 not checked. [2024-11-21 22:04:18,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:04:18,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672227135] [2024-11-21 22:04:18,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672227135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:04:18,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:04:18,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:04:18,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844825289] [2024-11-21 22:04:18,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:04:18,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:04:18,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:04:18,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:04:18,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:04:18,782 INFO L87 Difference]: Start difference. First operand 33584 states and 35856 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:19,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:04:19,300 INFO L93 Difference]: Finished difference Result 71046 states and 75874 transitions. [2024-11-21 22:04:19,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:04:19,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 760 [2024-11-21 22:04:19,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:04:19,334 INFO L225 Difference]: With dead ends: 71046 [2024-11-21 22:04:19,334 INFO L226 Difference]: Without dead ends: 37832 [2024-11-21 22:04:19,353 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 [2024-11-21 22:04:19,353 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 150 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:04:19,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 297 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-21 22:04:19,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37832 states. [2024-11-21 22:04:19,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37832 to 30641. [2024-11-21 22:04:19,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30641 states, 30640 states have (on average 1.0673629242819844) internal successors, (32704), 30640 states have internal predecessors, (32704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30641 states to 30641 states and 32704 transitions. [2024-11-21 22:04:19,643 INFO L78 Accepts]: Start accepts. Automaton has 30641 states and 32704 transitions. Word has length 760 [2024-11-21 22:04:19,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:04:19,643 INFO L471 AbstractCegarLoop]: Abstraction has 30641 states and 32704 transitions. [2024-11-21 22:04:19,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 30641 states and 32704 transitions. [2024-11-21 22:04:19,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 768 [2024-11-21 22:04:19,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:04:19,720 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:04:19,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-21 22:04:19,720 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:04:19,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:04:19,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1099534904, now seen corresponding path program 1 times [2024-11-21 22:04:19,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:04:19,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734497748] [2024-11-21 22:04:19,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:19,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:04:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:20,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 1324 proven. 77 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-21 22:04:20,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:04:20,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734497748] [2024-11-21 22:04:20,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734497748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:04:20,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402009420] [2024-11-21 22:04:20,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:20,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:04:20,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:04:20,307 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:04:20,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-21 22:04:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:20,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-21 22:04:20,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:04:20,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 1401 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-21 22:04:20,617 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:04:20,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402009420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:04:20,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:04:20,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-21 22:04:20,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133953573] [2024-11-21 22:04:20,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:04:20,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:04:20,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:04:20,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:04:20,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:04:20,619 INFO L87 Difference]: Start difference. First operand 30641 states and 32704 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:21,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:04:21,127 INFO L93 Difference]: Finished difference Result 61456 states and 65601 transitions. [2024-11-21 22:04:21,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:04:21,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 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 767 [2024-11-21 22:04:21,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:04:21,154 INFO L225 Difference]: With dead ends: 61456 [2024-11-21 22:04:21,154 INFO L226 Difference]: Without dead ends: 31185 [2024-11-21 22:04:21,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 770 GetRequests, 766 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:04:21,173 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 59 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:04:21,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 125 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-21 22:04:21,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31185 states. [2024-11-21 22:04:21,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31185 to 27502. [2024-11-21 22:04:21,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27502 states, 27501 states have (on average 1.0617068470237445) internal successors, (29198), 27501 states have internal predecessors, (29198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:21,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27502 states to 27502 states and 29198 transitions. [2024-11-21 22:04:21,550 INFO L78 Accepts]: Start accepts. Automaton has 27502 states and 29198 transitions. Word has length 767 [2024-11-21 22:04:21,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:04:21,551 INFO L471 AbstractCegarLoop]: Abstraction has 27502 states and 29198 transitions. [2024-11-21 22:04:21,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:21,551 INFO L276 IsEmpty]: Start isEmpty. Operand 27502 states and 29198 transitions. [2024-11-21 22:04:21,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2024-11-21 22:04:21,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:04:21,566 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:04:21,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-21 22:04:21,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-21 22:04:21,766 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:04:21,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:04:21,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1099454636, now seen corresponding path program 1 times [2024-11-21 22:04:21,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:04:21,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291159042] [2024-11-21 22:04:21,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:21,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:04:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:22,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 1191 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2024-11-21 22:04:22,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:04:22,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291159042] [2024-11-21 22:04:22,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291159042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:04:22,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:04:22,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:04:22,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265460687] [2024-11-21 22:04:22,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:04:22,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:04:22,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:04:22,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:04:22,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:04:22,169 INFO L87 Difference]: Start difference. First operand 27502 states and 29198 transitions. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:22,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:04:22,705 INFO L93 Difference]: Finished difference Result 54085 states and 57350 transitions. [2024-11-21 22:04:22,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:04:22,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 774 [2024-11-21 22:04:22,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:04:22,733 INFO L225 Difference]: With dead ends: 54085 [2024-11-21 22:04:22,733 INFO L226 Difference]: Without dead ends: 28611 [2024-11-21 22:04:22,749 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 [2024-11-21 22:04:22,749 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 139 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:04:22,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 69 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-21 22:04:22,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28611 states. [2024-11-21 22:04:22,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28611 to 26212. [2024-11-21 22:04:22,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26212 states, 26211 states have (on average 1.0592880851550877) internal successors, (27765), 26211 states have internal predecessors, (27765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:22,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26212 states to 26212 states and 27765 transitions. [2024-11-21 22:04:22,981 INFO L78 Accepts]: Start accepts. Automaton has 26212 states and 27765 transitions. Word has length 774 [2024-11-21 22:04:22,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:04:22,982 INFO L471 AbstractCegarLoop]: Abstraction has 26212 states and 27765 transitions. [2024-11-21 22:04:22,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:22,982 INFO L276 IsEmpty]: Start isEmpty. Operand 26212 states and 27765 transitions. [2024-11-21 22:04:22,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2024-11-21 22:04:22,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:04:22,996 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:04:22,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-21 22:04:22,996 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:04:22,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:04:22,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1609928325, now seen corresponding path program 1 times [2024-11-21 22:04:22,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:04:22,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593010282] [2024-11-21 22:04:22,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:22,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:04:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:23,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 1359 proven. 73 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2024-11-21 22:04:23,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:04:23,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593010282] [2024-11-21 22:04:23,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593010282] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:04:23,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924785622] [2024-11-21 22:04:23,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:04:23,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:04:23,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:04:23,891 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:04:23,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-21 22:04:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:04:24,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-21 22:04:24,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:04:25,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 1050 proven. 496 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-21 22:04:25,490 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 22:04:27,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 1050 proven. 496 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-21 22:04:27,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924785622] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 22:04:27,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 22:04:27,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 13 [2024-11-21 22:04:27,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742915229] [2024-11-21 22:04:27,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 22:04:27,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-21 22:04:27,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:04:27,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-21 22:04:27,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-21 22:04:27,513 INFO L87 Difference]: Start difference. First operand 26212 states and 27765 transitions. Second operand has 13 states, 13 states have (on average 98.53846153846153) internal successors, (1281), 13 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:32,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:04:32,172 INFO L93 Difference]: Finished difference Result 54669 states and 57826 transitions. [2024-11-21 22:04:32,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-21 22:04:32,173 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 98.53846153846153) internal successors, (1281), 13 states have internal predecessors, (1281), 0 states have call successors, (0), 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 850 [2024-11-21 22:04:32,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:04:32,174 INFO L225 Difference]: With dead ends: 54669 [2024-11-21 22:04:32,174 INFO L226 Difference]: Without dead ends: 0 [2024-11-21 22:04:32,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1755 GetRequests, 1716 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=449, Invalid=1191, Unknown=0, NotChecked=0, Total=1640 [2024-11-21 22:04:32,193 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 3779 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 7865 mSolverCounterSat, 926 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3779 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 8791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 926 IncrementalHoareTripleChecker+Valid, 7865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:04:32,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3779 Valid, 191 Invalid, 8791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [926 Valid, 7865 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-21 22:04:32,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-21 22:04:32,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-21 22:04:32,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:32,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-21 22:04:32,195 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 850 [2024-11-21 22:04:32,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:04:32,195 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-21 22:04:32,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 98.53846153846153) internal successors, (1281), 13 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:04:32,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-21 22:04:32,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-21 22:04:32,197 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-21 22:04:32,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-21 22:04:32,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:04:32,401 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:04:32,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-21 22:04:47,691 WARN L286 SmtUtils]: Spent 15.28s on a formula simplification. DAG size of input: 1010 DAG size of output: 1048 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-21 22:04:52,241 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-21 22:04:52,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:04:52 BoogieIcfgContainer [2024-11-21 22:04:52,281 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-21 22:04:52,282 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-21 22:04:52,282 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-21 22:04:52,282 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-21 22:04:52,283 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:03:30" (3/4) ... [2024-11-21 22:04:52,285 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-21 22:04:52,305 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-21 22:04:52,306 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-21 22:04:52,307 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-21 22:04:52,307 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-21 22:04:52,470 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-21 22:04:52,471 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-21 22:04:52,471 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-21 22:04:52,472 INFO L158 Benchmark]: Toolchain (without parser) took 83508.53ms. Allocated memory was 163.6MB in the beginning and 2.6GB in the end (delta: 2.5GB). Free memory was 125.9MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 222.4MB. Max. memory is 16.1GB. [2024-11-21 22:04:52,472 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 163.6MB. Free memory was 126.1MB in the beginning and 125.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 22:04:52,473 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.62ms. Allocated memory is still 163.6MB. Free memory was 125.9MB in the beginning and 79.0MB in the end (delta: 46.8MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-11-21 22:04:52,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.96ms. Allocated memory is still 163.6MB. Free memory was 78.4MB in the beginning and 116.9MB in the end (delta: -38.5MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-11-21 22:04:52,473 INFO L158 Benchmark]: Boogie Preprocessor took 148.49ms. Allocated memory is still 163.6MB. Free memory was 116.9MB in the beginning and 91.6MB in the end (delta: 25.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-21 22:04:52,475 INFO L158 Benchmark]: RCFGBuilder took 1246.36ms. Allocated memory was 163.6MB in the beginning and 207.6MB in the end (delta: 44.0MB). Free memory was 91.6MB in the beginning and 112.4MB in the end (delta: -20.8MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2024-11-21 22:04:52,475 INFO L158 Benchmark]: TraceAbstraction took 81300.71ms. Allocated memory was 207.6MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 111.3MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-11-21 22:04:52,476 INFO L158 Benchmark]: Witness Printer took 189.19ms. Allocated memory is still 2.6GB. Free memory was 2.4GB in the beginning and 2.4GB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-21 22:04:52,477 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 163.6MB. Free memory was 126.1MB in the beginning and 125.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.62ms. Allocated memory is still 163.6MB. Free memory was 125.9MB in the beginning and 79.0MB in the end (delta: 46.8MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 117.96ms. Allocated memory is still 163.6MB. Free memory was 78.4MB in the beginning and 116.9MB in the end (delta: -38.5MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 148.49ms. Allocated memory is still 163.6MB. Free memory was 116.9MB in the beginning and 91.6MB in the end (delta: 25.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1246.36ms. Allocated memory was 163.6MB in the beginning and 207.6MB in the end (delta: 44.0MB). Free memory was 91.6MB in the beginning and 112.4MB in the end (delta: -20.8MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. * TraceAbstraction took 81300.71ms. Allocated memory was 207.6MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 111.3MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * Witness Printer took 189.19ms. Allocated memory is still 2.6GB. Free memory was 2.4GB in the beginning and 2.4GB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 211]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 61.4s, OverallIterations: 27, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 28.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11031 SdHoareTripleChecker+Valid, 23.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11031 mSDsluCounter, 5973 SdHoareTripleChecker+Invalid, 19.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 950 mSDsCounter, 4666 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33836 IncrementalHoareTripleChecker+Invalid, 38502 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4666 mSolverCounterUnsat, 5023 mSDtfsCounter, 33836 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8959 GetRequests, 8809 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 922 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34884occurred in iteration=20, InterpolantAutomatonStates: 148, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.6s AutomataMinimizationTime, 27 MinimizatonAttempts, 59928 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 21.7s InterpolantComputationTime, 18330 NumberOfCodeBlocks, 18330 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 20457 ConstructedInterpolants, 0 QuantifiedInterpolants, 92104 SizeOfPredicates, 17 NumberOfNonLiveVariables, 8691 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 45 InterpolantComputations, 24 PerfectInterpolantSequences, 29049/33894 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((long long) a23 + 43) <= 0) && (0 <= ((long long) a23 + 599772))) && (a25 == 11)) && (a3 == 1)) && (a4 != 1)) && (a8 == 15)) || (((((((a25 == 12) && ((a23 < 307) || (a29 < 278))) && (139 <= a23)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (246 <= a29))) || ((((((((long long) 28445 + a29) <= 0) && (a3 == 1)) && (a8 == 15)) && (((4 < ((a29 >= 0) ? (a29 % 15) : ((a29 % 15) + 15))) || (((a29 >= 0) ? (a29 % 15) : ((a29 % 15) + 15)) == 0)) || (0 < ((long long) a29 + 1)))) && (a4 <= 0)) && (a25 == 10))) || ((((((((long long) a23 + 43) <= 0) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (130 <= a29)) && ((a25 == 13) || (a25 == 12)))) || (((((260 <= a29) && (a25 == 11)) && (a3 == 1)) && (((long long) 119992 + a23) <= 0)) && (a8 == 15))) || ((((((260 <= a29) && (a29 <= 275)) && (a25 == 12)) && (a3 == 1)) && (a8 == 15)) && (a4 <= 0))) || ((((((371192 <= a23) && (a25 == 12)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (a29 <= 130))) || (((((a23 <= 247) && (a3 == 1)) && (a4 == 1)) && (a25 <= 9)) && (a8 == 15))) || (((((a25 <= 10) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (246 <= a29))) || (((((((long long) a23 + 43) <= 0) && (0 <= ((long long) a23 + 599772))) && (a3 == 1)) && (a8 == 15)) && (a25 == 10))) || ((((((a29 <= 140) && (a25 == 11)) && (a3 == 1)) && (((long long) 119992 + a23) <= 0)) && (a4 != 1)) && (a8 == 15))) || (((((((0 <= ((long long) a23 + 599772)) && (256 <= a29)) && (a23 <= 247)) && (a25 == 11)) && (a29 <= 274)) && (a3 == 1)) && (a8 == 15))) || ((((((a29 <= 140) && (a3 == 1)) && (a4 == 1)) && (a23 <= 312)) && (a25 <= 9)) && (a8 == 15))) || (((((a29 <= 140) && (a23 <= 247)) && (a25 <= 10)) && (a3 == 1)) && (a8 == 15))) || ((((((141 <= a29) && (a3 == 1)) && (a4 == 1)) && (251149 <= a23)) && (a25 <= 9)) && (a8 == 15))) || (((((((a25 == 11) && (a4 == 1)) || (((a25 == 12) && ((a23 < 307) || (a29 < 278))) && (a4 == 1))) && (139 <= a23)) && (a3 == 1)) && (a23 <= 312)) && (a8 == 15))) || ((((((a25 == 13) && (a29 <= 274)) && (141 <= a29)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || ((((((a29 <= 275) && (((a25 == 12) && (a4 == 1)) || ((a25 == 11) && (a4 == 1)))) && (141 <= a29)) && (a3 == 1)) && (312 <= a23)) && (a8 == 15))) || (((((260 <= a29) && (a25 == 11)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || (((((a25 == 12) && (a23 <= 247)) && (a3 == 1)) && (a4 != 1)) && (a8 == 15))) || (((((a25 == 13) && (139 <= a23)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || ((((((a25 == 12) && (a29 <= 140)) && (a3 == 1)) && (a8 == 15)) && (((4 < ((a29 >= 0) ? (a29 % 15) : ((a29 % 15) + 15))) || (((a29 >= 0) ? (a29 % 15) : ((a29 % 15) + 15)) == 0)) || (0 < ((long long) a29 + 1)))) && (a4 <= 0))) || (((((long long) a23 + 43) <= 0) && (a25 <= 10)) && (a4 == 1))) || ((((((a25 == 12) && (0 <= ((long long) a23 + 599772))) && (a23 <= 247)) && (a3 == 1)) && (a29 <= 220)) && (a8 == 15))) || (((((((long long) a23 + 43) <= 0) && (a25 <= 10)) && (10250 <= a29)) && (a3 == 1)) && (a8 == 15))) || ((((((a25 == 12) && (a29 <= 274)) && (141 <= a29)) && (a3 == 1)) && (a8 == 15)) && (a4 <= 0))) || ((((a3 == 1) && (a4 == 1)) && (a8 == 15)) && (a25 == 10))) || ((((((a25 == 13) && (0 <= ((long long) a23 + 599772))) && (a23 <= 247)) && (a3 == 1)) && (a4 != 1)) && (a8 == 15))) || ((((((a23 <= 247) && (a25 == 11)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (130 <= a29))) RESULT: Ultimate proved your program to be correct! [2024-11-21 22:04:52,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE