./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label04.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 fbc8b86e86cd6737c503bef017b2b1abd25895fb1927b426e7290e477fc0b63c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 17:03:21,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 17:03:21,433 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 17:03:21,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 17:03:21,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 17:03:21,474 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 17:03:21,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 17:03:21,475 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 17:03:21,476 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 17:03:21,477 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 17:03:21,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 17:03:21,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 17:03:21,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 17:03:21,479 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 17:03:21,480 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 17:03:21,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 17:03:21,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 17:03:21,482 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 17:03:21,485 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 17:03:21,485 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 17:03:21,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 17:03:21,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 17:03:21,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 17:03:21,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 17:03:21,487 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 17:03:21,487 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 17:03:21,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 17:03:21,487 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 17:03:21,488 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 17:03:21,488 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 17:03:21,488 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 17:03:21,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 17:03:21,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 17:03:21,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 17:03:21,491 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 17:03:21,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 17:03:21,492 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 17:03:21,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 17:03:21,492 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 17:03:21,492 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 17:03:21,493 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 17:03:21,493 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 17:03:21,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbc8b86e86cd6737c503bef017b2b1abd25895fb1927b426e7290e477fc0b63c [2024-11-11 17:03:21,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 17:03:21,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 17:03:21,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 17:03:21,800 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 17:03:21,800 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 17:03:21,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label04.c [2024-11-11 17:03:23,289 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 17:03:23,574 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 17:03:23,576 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label04.c [2024-11-11 17:03:23,594 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa50b9dec/bd232374acf74d9495fd661a9bd5b6aa/FLAG64de4e012 [2024-11-11 17:03:23,869 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa50b9dec/bd232374acf74d9495fd661a9bd5b6aa [2024-11-11 17:03:23,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 17:03:23,873 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 17:03:23,874 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 17:03:23,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 17:03:23,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 17:03:23,882 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 05:03:23" (1/1) ... [2024-11-11 17:03:23,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28fbf09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:23, skipping insertion in model container [2024-11-11 17:03:23,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 05:03:23" (1/1) ... [2024-11-11 17:03:23,928 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 17:03:24,138 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/Problem14_label04.c[5382,5395] [2024-11-11 17:03:24,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 17:03:24,351 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 17:03:24,374 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label04.c[5382,5395] [2024-11-11 17:03:24,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 17:03:24,541 INFO L204 MainTranslator]: Completed translation [2024-11-11 17:03:24,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24 WrapperNode [2024-11-11 17:03:24,545 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 17:03:24,546 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 17:03:24,546 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 17:03:24,546 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 17:03:24,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24" (1/1) ... [2024-11-11 17:03:24,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24" (1/1) ... [2024-11-11 17:03:24,641 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 859 [2024-11-11 17:03:24,641 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 17:03:24,642 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 17:03:24,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 17:03:24,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 17:03:24,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24" (1/1) ... [2024-11-11 17:03:24,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24" (1/1) ... [2024-11-11 17:03:24,676 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24" (1/1) ... [2024-11-11 17:03:24,725 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]. [2024-11-11 17:03:24,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24" (1/1) ... [2024-11-11 17:03:24,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24" (1/1) ... [2024-11-11 17:03:24,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24" (1/1) ... [2024-11-11 17:03:24,772 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24" (1/1) ... [2024-11-11 17:03:24,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24" (1/1) ... [2024-11-11 17:03:24,795 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24" (1/1) ... [2024-11-11 17:03:24,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 17:03:24,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 17:03:24,807 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 17:03:24,808 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 17:03:24,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24" (1/1) ... [2024-11-11 17:03:24,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 17:03:24,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:03:24,842 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) [2024-11-11 17:03:24,845 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 [2024-11-11 17:03:24,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 17:03:24,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 17:03:24,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 17:03:24,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 17:03:24,965 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 17:03:24,967 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 17:03:26,342 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-11 17:03:26,343 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 17:03:26,366 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 17:03:26,368 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 17:03:26,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 05:03:26 BoogieIcfgContainer [2024-11-11 17:03:26,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 17:03:26,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 17:03:26,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 17:03:26,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 17:03:26,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 05:03:23" (1/3) ... [2024-11-11 17:03:26,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335559f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 05:03:26, skipping insertion in model container [2024-11-11 17:03:26,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:03:24" (2/3) ... [2024-11-11 17:03:26,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335559f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 05:03:26, skipping insertion in model container [2024-11-11 17:03:26,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 05:03:26" (3/3) ... [2024-11-11 17:03:26,378 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label04.c [2024-11-11 17:03:26,397 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 17:03:26,398 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 17:03:26,466 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 17:03:26,471 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;@9360c73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 17:03:26,471 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 17:03:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:26,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-11 17:03:26,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:26,486 INFO L218 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] [2024-11-11 17:03:26,487 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:26,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:26,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1382487458, now seen corresponding path program 1 times [2024-11-11 17:03:26,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:26,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31470189] [2024-11-11 17:03:26,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:26,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:26,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 17:03:26,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:26,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31470189] [2024-11-11 17:03:26,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31470189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:26,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:03:26,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:03:26,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352477324] [2024-11-11 17:03:26,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:26,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 17:03:26,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:26,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 17:03:26,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:03:26,977 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:28,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:28,616 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2024-11-11 17:03:28,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 17:03:28,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-11 17:03:28,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:28,633 INFO L225 Difference]: With dead ends: 850 [2024-11-11 17:03:28,633 INFO L226 Difference]: Without dead ends: 538 [2024-11-11 17:03:28,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 17:03:28,640 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 485 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:28,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 194 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-11 17:03:28,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-11 17:03:28,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2024-11-11 17:03:28,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:28,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2024-11-11 17:03:28,736 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 52 [2024-11-11 17:03:28,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:28,738 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2024-11-11 17:03:28,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:28,738 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2024-11-11 17:03:28,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 17:03:28,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:28,744 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:03:28,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 17:03:28,745 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:28,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:28,745 INFO L85 PathProgramCache]: Analyzing trace with hash 327314734, now seen corresponding path program 1 times [2024-11-11 17:03:28,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:28,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976242302] [2024-11-11 17:03:28,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:28,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 17:03:29,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:29,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976242302] [2024-11-11 17:03:29,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976242302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:29,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:03:29,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:03:29,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507693263] [2024-11-11 17:03:29,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:29,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 17:03:29,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:29,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 17:03:29,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:03:29,095 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:29,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:29,877 INFO L93 Difference]: Finished difference Result 1281 states and 1978 transitions. [2024-11-11 17:03:29,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 17:03:29,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-11-11 17:03:29,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:29,883 INFO L225 Difference]: With dead ends: 1281 [2024-11-11 17:03:29,887 INFO L226 Difference]: Without dead ends: 894 [2024-11-11 17:03:29,889 INFO L434 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 [2024-11-11 17:03:29,891 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 116 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:29,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 119 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 17:03:29,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2024-11-11 17:03:29,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 716. [2024-11-11 17:03:29,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.220979020979021) internal successors, (873), 715 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:29,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 873 transitions. [2024-11-11 17:03:29,930 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 873 transitions. Word has length 132 [2024-11-11 17:03:29,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:29,930 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 873 transitions. [2024-11-11 17:03:29,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:29,931 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 873 transitions. [2024-11-11 17:03:29,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-11 17:03:29,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:29,935 INFO L218 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, 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] [2024-11-11 17:03:29,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 17:03:29,935 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:29,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:29,936 INFO L85 PathProgramCache]: Analyzing trace with hash 138717315, now seen corresponding path program 1 times [2024-11-11 17:03:29,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:29,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274615309] [2024-11-11 17:03:29,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:29,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:30,539 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 99 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 17:03:30,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:30,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274615309] [2024-11-11 17:03:30,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274615309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:03:30,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061077824] [2024-11-11 17:03:30,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:30,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:03:30,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:03:30,544 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) [2024-11-11 17:03:30,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 17:03:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:30,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:03:30,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:03:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-11 17:03:30,817 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:03:30,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061077824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:30,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:03:30,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-11 17:03:30,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145675606] [2024-11-11 17:03:30,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:30,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:03:30,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:30,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:03:30,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:03:30,820 INFO L87 Difference]: Start difference. First operand 716 states and 873 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:31,382 INFO L93 Difference]: Finished difference Result 1608 states and 2071 transitions. [2024-11-11 17:03:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:03:31,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 223 [2024-11-11 17:03:31,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:31,392 INFO L225 Difference]: With dead ends: 1608 [2024-11-11 17:03:31,393 INFO L226 Difference]: Without dead ends: 1072 [2024-11-11 17:03:31,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:03:31,399 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 131 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:31,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 85 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 17:03:31,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-11-11 17:03:31,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2024-11-11 17:03:31,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.211646136618141) internal successors, (1082), 893 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:31,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1082 transitions. [2024-11-11 17:03:31,422 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1082 transitions. Word has length 223 [2024-11-11 17:03:31,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:31,425 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1082 transitions. [2024-11-11 17:03:31,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:31,426 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1082 transitions. [2024-11-11 17:03:31,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-11 17:03:31,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:31,432 INFO L218 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, 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] [2024-11-11 17:03:31,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 17:03:31,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:03:31,633 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:31,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:31,634 INFO L85 PathProgramCache]: Analyzing trace with hash 880914236, now seen corresponding path program 1 times [2024-11-11 17:03:31,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:31,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599509270] [2024-11-11 17:03:31,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:31,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:31,918 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 17:03:31,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:31,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599509270] [2024-11-11 17:03:31,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599509270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:31,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:03:31,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:03:31,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592366902] [2024-11-11 17:03:31,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:31,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:03:31,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:31,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:03:31,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:03:31,922 INFO L87 Difference]: Start difference. First operand 894 states and 1082 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:32,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:32,460 INFO L93 Difference]: Finished difference Result 1964 states and 2415 transitions. [2024-11-11 17:03:32,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:03:32,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 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 226 [2024-11-11 17:03:32,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:32,465 INFO L225 Difference]: With dead ends: 1964 [2024-11-11 17:03:32,465 INFO L226 Difference]: Without dead ends: 1250 [2024-11-11 17:03:32,468 INFO L434 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 [2024-11-11 17:03:32,469 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:32,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 58 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 17:03:32,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-11 17:03:32,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2024-11-11 17:03:32,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.1753402722177742) internal successors, (1468), 1249 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:32,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1468 transitions. [2024-11-11 17:03:32,493 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1468 transitions. Word has length 226 [2024-11-11 17:03:32,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:32,493 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1468 transitions. [2024-11-11 17:03:32,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:32,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1468 transitions. [2024-11-11 17:03:32,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-11 17:03:32,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:32,499 INFO L218 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:03:32,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 17:03:32,500 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:32,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:32,501 INFO L85 PathProgramCache]: Analyzing trace with hash 142603424, now seen corresponding path program 1 times [2024-11-11 17:03:32,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:32,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138903171] [2024-11-11 17:03:32,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:32,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:33,124 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 228 proven. 130 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-11 17:03:33,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:33,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138903171] [2024-11-11 17:03:33,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138903171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:03:33,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572476183] [2024-11-11 17:03:33,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:33,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:03:33,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:03:33,127 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) [2024-11-11 17:03:33,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 17:03:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:33,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:03:33,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:03:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-11 17:03:33,706 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:03:33,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572476183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:33,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:03:33,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-11 17:03:33,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385117444] [2024-11-11 17:03:33,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:33,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:03:33,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:33,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:03:33,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:03:33,709 INFO L87 Difference]: Start difference. First operand 1250 states and 1468 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:34,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:34,270 INFO L93 Difference]: Finished difference Result 2854 states and 3498 transitions. [2024-11-11 17:03:34,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:03:34,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 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 386 [2024-11-11 17:03:34,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:34,277 INFO L225 Difference]: With dead ends: 2854 [2024-11-11 17:03:34,277 INFO L226 Difference]: Without dead ends: 1962 [2024-11-11 17:03:34,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:03:34,280 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 65 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:34,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 17:03:34,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2024-11-11 17:03:34,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2024-11-11 17:03:34,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1662417134115248) internal successors, (2287), 1961 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:34,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2287 transitions. [2024-11-11 17:03:34,314 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2287 transitions. Word has length 386 [2024-11-11 17:03:34,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:34,315 INFO L471 AbstractCegarLoop]: Abstraction has 1962 states and 2287 transitions. [2024-11-11 17:03:34,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:34,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2287 transitions. [2024-11-11 17:03:34,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-11 17:03:34,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:34,322 INFO L218 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:03:34,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 17:03:34,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:03:34,527 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:34,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:34,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1255761555, now seen corresponding path program 1 times [2024-11-11 17:03:34,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:34,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20662165] [2024-11-11 17:03:34,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:34,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:35,097 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-11 17:03:35,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:35,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20662165] [2024-11-11 17:03:35,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20662165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:03:35,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158216369] [2024-11-11 17:03:35,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:35,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:03:35,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:03:35,102 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) [2024-11-11 17:03:35,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 17:03:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:35,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:03:35,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:03:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2024-11-11 17:03:35,777 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:03:35,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158216369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:35,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:03:35,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-11 17:03:35,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833822993] [2024-11-11 17:03:35,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:35,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:03:35,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:35,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:03:35,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 17:03:35,780 INFO L87 Difference]: Start difference. First operand 1962 states and 2287 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:36,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:36,319 INFO L93 Difference]: Finished difference Result 2854 states and 3290 transitions. [2024-11-11 17:03:36,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:03:36,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 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 [2024-11-11 17:03:36,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:36,329 INFO L225 Difference]: With dead ends: 2854 [2024-11-11 17:03:36,330 INFO L226 Difference]: Without dead ends: 2852 [2024-11-11 17:03:36,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 17:03:36,332 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:36,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 28 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 17:03:36,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2024-11-11 17:03:36,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1784. [2024-11-11 17:03:36,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1402131239484015) internal successors, (2033), 1783 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:36,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2033 transitions. [2024-11-11 17:03:36,373 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2033 transitions. Word has length 432 [2024-11-11 17:03:36,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:36,374 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 2033 transitions. [2024-11-11 17:03:36,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:36,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2033 transitions. [2024-11-11 17:03:36,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2024-11-11 17:03:36,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:36,377 INFO L218 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, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:03:36,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 17:03:36,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:03:36,578 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:36,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:36,579 INFO L85 PathProgramCache]: Analyzing trace with hash -35807260, now seen corresponding path program 1 times [2024-11-11 17:03:36,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:36,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976871350] [2024-11-11 17:03:36,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:36,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:36,986 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-11 17:03:36,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:36,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976871350] [2024-11-11 17:03:36,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976871350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:36,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:03:36,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:03:36,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036268399] [2024-11-11 17:03:36,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:36,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 17:03:36,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:36,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 17:03:36,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:03:36,989 INFO L87 Difference]: Start difference. First operand 1784 states and 2033 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:37,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:37,642 INFO L93 Difference]: Finished difference Result 3417 states and 3936 transitions. [2024-11-11 17:03:37,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 17:03:37,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 434 [2024-11-11 17:03:37,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:37,648 INFO L225 Difference]: With dead ends: 3417 [2024-11-11 17:03:37,649 INFO L226 Difference]: Without dead ends: 1962 [2024-11-11 17:03:37,651 INFO L434 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 [2024-11-11 17:03:37,652 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 141 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:37,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 17 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 17:03:37,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2024-11-11 17:03:37,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2024-11-11 17:03:37,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.089736399326977) internal successors, (1943), 1783 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:37,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1943 transitions. [2024-11-11 17:03:37,681 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1943 transitions. Word has length 434 [2024-11-11 17:03:37,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:37,682 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 1943 transitions. [2024-11-11 17:03:37,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:37,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1943 transitions. [2024-11-11 17:03:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2024-11-11 17:03:37,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:37,686 INFO L218 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:03:37,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 17:03:37,686 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:37,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:37,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1854062487, now seen corresponding path program 1 times [2024-11-11 17:03:37,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:37,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242922143] [2024-11-11 17:03:37,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:37,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:38,126 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 405 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-11 17:03:38,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:38,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242922143] [2024-11-11 17:03:38,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242922143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:38,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:03:38,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:03:38,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039411960] [2024-11-11 17:03:38,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:38,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:03:38,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:38,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:03:38,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:03:38,130 INFO L87 Difference]: Start difference. First operand 1784 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:38,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:38,650 INFO L93 Difference]: Finished difference Result 3922 states and 4347 transitions. [2024-11-11 17:03:38,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:03:38,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 445 [2024-11-11 17:03:38,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:38,659 INFO L225 Difference]: With dead ends: 3922 [2024-11-11 17:03:38,659 INFO L226 Difference]: Without dead ends: 2496 [2024-11-11 17:03:38,661 INFO L434 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 [2024-11-11 17:03:38,664 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:38,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 17:03:38,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2024-11-11 17:03:38,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2024-11-11 17:03:38,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.092184368737475) internal successors, (2725), 2495 states have internal predecessors, (2725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:38,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2725 transitions. [2024-11-11 17:03:38,706 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2725 transitions. Word has length 445 [2024-11-11 17:03:38,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:38,709 INFO L471 AbstractCegarLoop]: Abstraction has 2496 states and 2725 transitions. [2024-11-11 17:03:38,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:38,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2725 transitions. [2024-11-11 17:03:38,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-11-11 17:03:38,713 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:38,713 INFO L218 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:03:38,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 17:03:38,714 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:38,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:38,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1718197722, now seen corresponding path program 1 times [2024-11-11 17:03:38,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:38,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287871924] [2024-11-11 17:03:38,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:38,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:39,056 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 519 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-11 17:03:39,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:39,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287871924] [2024-11-11 17:03:39,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287871924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:39,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:03:39,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:03:39,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065623146] [2024-11-11 17:03:39,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:39,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:03:39,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:39,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:03:39,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:03:39,063 INFO L87 Difference]: Start difference. First operand 2496 states and 2725 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:39,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:39,582 INFO L93 Difference]: Finished difference Result 5880 states and 6513 transitions. [2024-11-11 17:03:39,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:03:39,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 486 [2024-11-11 17:03:39,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:39,595 INFO L225 Difference]: With dead ends: 5880 [2024-11-11 17:03:39,595 INFO L226 Difference]: Without dead ends: 3742 [2024-11-11 17:03:39,599 INFO L434 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 [2024-11-11 17:03:39,601 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 74 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:39,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 50 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 17:03:39,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2024-11-11 17:03:39,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2024-11-11 17:03:39,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0828655439722) internal successors, (4051), 3741 states have internal predecessors, (4051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:39,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4051 transitions. [2024-11-11 17:03:39,669 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4051 transitions. Word has length 486 [2024-11-11 17:03:39,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:39,670 INFO L471 AbstractCegarLoop]: Abstraction has 3742 states and 4051 transitions. [2024-11-11 17:03:39,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:39,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4051 transitions. [2024-11-11 17:03:39,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-11-11 17:03:39,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:39,675 INFO L218 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:03:39,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 17:03:39,676 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:39,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:39,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1589037133, now seen corresponding path program 1 times [2024-11-11 17:03:39,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:39,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701909920] [2024-11-11 17:03:39,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:39,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:40,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 685 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2024-11-11 17:03:40,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:40,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701909920] [2024-11-11 17:03:40,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701909920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:40,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:03:40,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:03:40,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710194715] [2024-11-11 17:03:40,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:40,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:03:40,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:40,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:03:40,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:03:40,117 INFO L87 Difference]: Start difference. First operand 3742 states and 4051 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:40,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:40,601 INFO L93 Difference]: Finished difference Result 6948 states and 7546 transitions. [2024-11-11 17:03:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:03:40,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 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 522 [2024-11-11 17:03:40,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:40,614 INFO L225 Difference]: With dead ends: 6948 [2024-11-11 17:03:40,614 INFO L226 Difference]: Without dead ends: 3564 [2024-11-11 17:03:40,618 INFO L434 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 [2024-11-11 17:03:40,619 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 103 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:40,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 242 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:03:40,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2024-11-11 17:03:40,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2024-11-11 17:03:40,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.078578110383536) internal successors, (3459), 3207 states have internal predecessors, (3459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:40,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3459 transitions. [2024-11-11 17:03:40,722 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3459 transitions. Word has length 522 [2024-11-11 17:03:40,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:40,723 INFO L471 AbstractCegarLoop]: Abstraction has 3208 states and 3459 transitions. [2024-11-11 17:03:40,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:40,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3459 transitions. [2024-11-11 17:03:40,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-11 17:03:40,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:40,728 INFO L218 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 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] [2024-11-11 17:03:40,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 17:03:40,729 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:40,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:40,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1310836641, now seen corresponding path program 1 times [2024-11-11 17:03:40,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:40,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559835204] [2024-11-11 17:03:40,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:40,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:41,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 892 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-11 17:03:41,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:41,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559835204] [2024-11-11 17:03:41,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559835204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:03:41,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899609854] [2024-11-11 17:03:41,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:41,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:03:41,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:03:41,206 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) [2024-11-11 17:03:41,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 17:03:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:41,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 17:03:41,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:03:41,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 892 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-11 17:03:41,808 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 17:03:42,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 892 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-11 17:03:42,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899609854] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 17:03:42,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 17:03:42,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-11 17:03:42,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910607570] [2024-11-11 17:03:42,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 17:03:42,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 17:03:42,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:42,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 17:03:42,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:03:42,103 INFO L87 Difference]: Start difference. First operand 3208 states and 3459 transitions. Second operand has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:43,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:43,048 INFO L93 Difference]: Finished difference Result 7482 states and 8139 transitions. [2024-11-11 17:03:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 17:03:43,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 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 641 [2024-11-11 17:03:43,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:43,064 INFO L225 Difference]: With dead ends: 7482 [2024-11-11 17:03:43,064 INFO L226 Difference]: Without dead ends: 4632 [2024-11-11 17:03:43,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1284 GetRequests, 1280 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:03:43,069 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 227 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:43,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 67 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 17:03:43,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2024-11-11 17:03:43,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4276. [2024-11-11 17:03:43,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.0776608187134502) internal successors, (4607), 4275 states have internal predecessors, (4607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:43,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4607 transitions. [2024-11-11 17:03:43,161 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4607 transitions. Word has length 641 [2024-11-11 17:03:43,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:43,162 INFO L471 AbstractCegarLoop]: Abstraction has 4276 states and 4607 transitions. [2024-11-11 17:03:43,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:43,163 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4607 transitions. [2024-11-11 17:03:43,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2024-11-11 17:03:43,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:43,168 INFO L218 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, 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, 4, 3, 3, 3, 3, 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] [2024-11-11 17:03:43,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 17:03:43,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:03:43,369 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:43,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:43,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2043682623, now seen corresponding path program 1 times [2024-11-11 17:03:43,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:43,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522465203] [2024-11-11 17:03:43,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:43,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 1038 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2024-11-11 17:03:43,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:43,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522465203] [2024-11-11 17:03:43,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522465203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:43,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:03:43,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:03:43,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463941846] [2024-11-11 17:03:43,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:43,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:03:43,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:43,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:03:43,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:03:43,742 INFO L87 Difference]: Start difference. First operand 4276 states and 4607 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:44,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:44,190 INFO L93 Difference]: Finished difference Result 9618 states and 10448 transitions. [2024-11-11 17:03:44,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:03:44,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 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 713 [2024-11-11 17:03:44,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:44,209 INFO L225 Difference]: With dead ends: 9618 [2024-11-11 17:03:44,209 INFO L226 Difference]: Without dead ends: 5700 [2024-11-11 17:03:44,214 INFO L434 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 [2024-11-11 17:03:44,216 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 110 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:44,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 37 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:03:44,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2024-11-11 17:03:44,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5344. [2024-11-11 17:03:44,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.078420363091896) internal successors, (5762), 5343 states have internal predecessors, (5762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:44,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5762 transitions. [2024-11-11 17:03:44,322 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5762 transitions. Word has length 713 [2024-11-11 17:03:44,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:44,323 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 5762 transitions. [2024-11-11 17:03:44,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:44,323 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5762 transitions. [2024-11-11 17:03:44,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2024-11-11 17:03:44,329 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:44,329 INFO L218 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, 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, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:03:44,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 17:03:44,329 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:44,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:44,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1828962068, now seen corresponding path program 1 times [2024-11-11 17:03:44,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:44,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050752761] [2024-11-11 17:03:44,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:44,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:45,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 1146 proven. 93 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-11-11 17:03:45,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:45,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050752761] [2024-11-11 17:03:45,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050752761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:03:45,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354960004] [2024-11-11 17:03:45,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:45,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:03:45,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:03:45,107 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) [2024-11-11 17:03:45,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 17:03:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:45,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 17:03:45,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:03:45,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 1239 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-11-11 17:03:45,832 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:03:45,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354960004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:45,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:03:45,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-11 17:03:45,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541020329] [2024-11-11 17:03:45,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:45,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:03:45,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:45,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:03:45,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:03:45,835 INFO L87 Difference]: Start difference. First operand 5344 states and 5762 transitions. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:46,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:46,272 INFO L93 Difference]: Finished difference Result 10864 states and 11716 transitions. [2024-11-11 17:03:46,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:03:46,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 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 731 [2024-11-11 17:03:46,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:46,291 INFO L225 Difference]: With dead ends: 10864 [2024-11-11 17:03:46,291 INFO L226 Difference]: Without dead ends: 5878 [2024-11-11 17:03:46,298 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:03:46,299 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:46,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 64 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:03:46,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2024-11-11 17:03:46,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5522. [2024-11-11 17:03:46,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0760731751494295) internal successors, (5941), 5521 states have internal predecessors, (5941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:46,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5941 transitions. [2024-11-11 17:03:46,387 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5941 transitions. Word has length 731 [2024-11-11 17:03:46,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:46,388 INFO L471 AbstractCegarLoop]: Abstraction has 5522 states and 5941 transitions. [2024-11-11 17:03:46,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:46,389 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5941 transitions. [2024-11-11 17:03:46,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2024-11-11 17:03:46,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:46,395 INFO L218 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:03:46,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-11 17:03:46,596 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 [2024-11-11 17:03:46,597 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:46,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:46,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1867062169, now seen corresponding path program 1 times [2024-11-11 17:03:46,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:46,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511995001] [2024-11-11 17:03:46,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:46,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:47,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1758 backedges. 1071 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2024-11-11 17:03:47,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:47,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511995001] [2024-11-11 17:03:47,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511995001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:47,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:03:47,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:03:47,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284835683] [2024-11-11 17:03:47,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:47,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:03:47,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:47,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:03:47,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:03:47,398 INFO L87 Difference]: Start difference. First operand 5522 states and 5941 transitions. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:47,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:47,890 INFO L93 Difference]: Finished difference Result 10864 states and 11735 transitions. [2024-11-11 17:03:47,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:03:47,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 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 758 [2024-11-11 17:03:47,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:47,899 INFO L225 Difference]: With dead ends: 10864 [2024-11-11 17:03:47,899 INFO L226 Difference]: Without dead ends: 5700 [2024-11-11 17:03:47,904 INFO L434 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 [2024-11-11 17:03:47,905 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:47,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 227 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 17:03:47,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2024-11-11 17:03:47,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2024-11-11 17:03:47,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0701877522372345) internal successors, (6099), 5699 states have internal predecessors, (6099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:47,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 6099 transitions. [2024-11-11 17:03:47,973 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 6099 transitions. Word has length 758 [2024-11-11 17:03:47,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:47,974 INFO L471 AbstractCegarLoop]: Abstraction has 5700 states and 6099 transitions. [2024-11-11 17:03:47,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:47,974 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 6099 transitions. [2024-11-11 17:03:47,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2024-11-11 17:03:47,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:47,981 INFO L218 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:03:47,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 17:03:47,982 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:47,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:47,983 INFO L85 PathProgramCache]: Analyzing trace with hash -540711606, now seen corresponding path program 1 times [2024-11-11 17:03:47,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:47,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568444248] [2024-11-11 17:03:47,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:47,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:49,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 1215 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2024-11-11 17:03:49,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:49,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568444248] [2024-11-11 17:03:49,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568444248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:03:49,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115190934] [2024-11-11 17:03:49,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:49,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:03:49,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:03:49,784 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) [2024-11-11 17:03:49,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 17:03:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:50,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-11 17:03:50,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:03:50,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 928 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2024-11-11 17:03:50,712 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:03:50,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115190934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:50,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:03:50,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-11 17:03:50,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810604497] [2024-11-11 17:03:50,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:50,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 17:03:50,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:50,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 17:03:50,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-11 17:03:50,716 INFO L87 Difference]: Start difference. First operand 5700 states and 6099 transitions. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:51,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:51,650 INFO L93 Difference]: Finished difference Result 12466 states and 13394 transitions. [2024-11-11 17:03:51,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 17:03:51,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 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 808 [2024-11-11 17:03:51,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:51,663 INFO L225 Difference]: With dead ends: 12466 [2024-11-11 17:03:51,664 INFO L226 Difference]: Without dead ends: 7124 [2024-11-11 17:03:51,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 806 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-11 17:03:51,671 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 205 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:51,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 60 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 17:03:51,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2024-11-11 17:03:51,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 6768. [2024-11-11 17:03:51,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0704891384660855) internal successors, (7244), 6767 states have internal predecessors, (7244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:51,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7244 transitions. [2024-11-11 17:03:51,754 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7244 transitions. Word has length 808 [2024-11-11 17:03:51,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:51,755 INFO L471 AbstractCegarLoop]: Abstraction has 6768 states and 7244 transitions. [2024-11-11 17:03:51,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:51,755 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7244 transitions. [2024-11-11 17:03:51,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2024-11-11 17:03:51,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:51,762 INFO L218 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 17:03:51,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-11 17:03:51,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-11 17:03:51,963 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:51,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:51,964 INFO L85 PathProgramCache]: Analyzing trace with hash -172725225, now seen corresponding path program 1 times [2024-11-11 17:03:51,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:51,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709642541] [2024-11-11 17:03:51,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:51,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:52,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 837 proven. 2 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2024-11-11 17:03:52,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:52,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709642541] [2024-11-11 17:03:52,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709642541] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:03:52,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138166300] [2024-11-11 17:03:52,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:52,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:03:52,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:03:52,964 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) [2024-11-11 17:03:52,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-11 17:03:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:53,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:03:53,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:03:53,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 839 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2024-11-11 17:03:53,349 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:03:53,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138166300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:53,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:03:53,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-11 17:03:53,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417157754] [2024-11-11 17:03:53,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:53,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:03:53,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:53,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:03:53,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:03:53,352 INFO L87 Difference]: Start difference. First operand 6768 states and 7244 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:53,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:53,848 INFO L93 Difference]: Finished difference Result 13534 states and 14498 transitions. [2024-11-11 17:03:53,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:03:53,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 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 810 [2024-11-11 17:03:53,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:53,860 INFO L225 Difference]: With dead ends: 13534 [2024-11-11 17:03:53,861 INFO L226 Difference]: Without dead ends: 7124 [2024-11-11 17:03:53,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 816 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:03:53,868 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 71 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:53,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 245 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:03:53,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2024-11-11 17:03:53,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 6590. [2024-11-11 17:03:53,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.0628319927151313) internal successors, (7003), 6589 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:53,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 7003 transitions. [2024-11-11 17:03:53,948 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 7003 transitions. Word has length 810 [2024-11-11 17:03:53,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:53,948 INFO L471 AbstractCegarLoop]: Abstraction has 6590 states and 7003 transitions. [2024-11-11 17:03:53,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:53,949 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 7003 transitions. [2024-11-11 17:03:53,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2024-11-11 17:03:53,956 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:53,956 INFO L218 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:03:53,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-11 17:03:54,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:03:54,158 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:54,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:54,158 INFO L85 PathProgramCache]: Analyzing trace with hash -2108387026, now seen corresponding path program 1 times [2024-11-11 17:03:54,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:54,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249938268] [2024-11-11 17:03:54,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:54,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2267 backedges. 1251 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2024-11-11 17:03:55,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:55,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249938268] [2024-11-11 17:03:55,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249938268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:03:55,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835189281] [2024-11-11 17:03:55,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:55,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:03:55,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:03:55,540 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) [2024-11-11 17:03:55,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-11 17:03:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:55,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 17:03:55,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:03:56,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2267 backedges. 1340 proven. 536 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2024-11-11 17:03:56,750 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 17:03:57,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2267 backedges. 1323 proven. 0 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2024-11-11 17:03:57,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835189281] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-11 17:03:57,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-11 17:03:57,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 13 [2024-11-11 17:03:57,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697180563] [2024-11-11 17:03:57,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:57,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 17:03:57,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:57,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 17:03:57,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-11 17:03:57,505 INFO L87 Difference]: Start difference. First operand 6590 states and 7003 transitions. Second operand has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:58,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:58,001 INFO L93 Difference]: Finished difference Result 13000 states and 13847 transitions. [2024-11-11 17:03:58,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 17:03:58,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 0 states have call successors, (0), 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 841 [2024-11-11 17:03:58,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:58,012 INFO L225 Difference]: With dead ends: 13000 [2024-11-11 17:03:58,013 INFO L226 Difference]: Without dead ends: 6768 [2024-11-11 17:03:58,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1685 GetRequests, 1674 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-11 17:03:58,020 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 237 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:58,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 10 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 17:03:58,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6768 states. [2024-11-11 17:03:58,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6768 to 6056. [2024-11-11 17:03:58,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.0617671345995046) internal successors, (6429), 6055 states have internal predecessors, (6429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:58,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6429 transitions. [2024-11-11 17:03:58,098 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6429 transitions. Word has length 841 [2024-11-11 17:03:58,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:58,098 INFO L471 AbstractCegarLoop]: Abstraction has 6056 states and 6429 transitions. [2024-11-11 17:03:58,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:58,099 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6429 transitions. [2024-11-11 17:03:58,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2024-11-11 17:03:58,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:58,107 INFO L218 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, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2024-11-11 17:03:58,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-11 17:03:58,307 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,SelfDestructingSolverStorable16 [2024-11-11 17:03:58,308 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:58,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:58,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1454235833, now seen corresponding path program 1 times [2024-11-11 17:03:58,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:58,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705928474] [2024-11-11 17:03:58,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:58,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:03:59,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2382 backedges. 1388 proven. 0 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked. [2024-11-11 17:03:59,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:03:59,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705928474] [2024-11-11 17:03:59,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705928474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:03:59,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:03:59,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:03:59,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146287174] [2024-11-11 17:03:59,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:03:59,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:03:59,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:03:59,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:03:59,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:03:59,103 INFO L87 Difference]: Start difference. First operand 6056 states and 6429 transitions. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:59,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:03:59,517 INFO L93 Difference]: Finished difference Result 11932 states and 12687 transitions. [2024-11-11 17:03:59,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:03:59,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 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 875 [2024-11-11 17:03:59,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:03:59,528 INFO L225 Difference]: With dead ends: 11932 [2024-11-11 17:03:59,528 INFO L226 Difference]: Without dead ends: 6234 [2024-11-11 17:03:59,535 INFO L434 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 [2024-11-11 17:03:59,536 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 24 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:03:59,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 226 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:03:59,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2024-11-11 17:03:59,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 6056. [2024-11-11 17:03:59,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.0569777043765483) internal successors, (6400), 6055 states have internal predecessors, (6400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:59,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6400 transitions. [2024-11-11 17:03:59,620 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6400 transitions. Word has length 875 [2024-11-11 17:03:59,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:03:59,620 INFO L471 AbstractCegarLoop]: Abstraction has 6056 states and 6400 transitions. [2024-11-11 17:03:59,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:03:59,621 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6400 transitions. [2024-11-11 17:03:59,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2024-11-11 17:03:59,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:03:59,629 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:03:59,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 17:03:59,629 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:03:59,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:03:59,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1755066193, now seen corresponding path program 1 times [2024-11-11 17:03:59,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:03:59,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66295030] [2024-11-11 17:03:59,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:03:59,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:03:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:00,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2884 backedges. 1002 proven. 0 refuted. 0 times theorem prover too weak. 1882 trivial. 0 not checked. [2024-11-11 17:04:00,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:00,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66295030] [2024-11-11 17:04:00,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66295030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:00,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:04:00,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 17:04:00,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10951183] [2024-11-11 17:04:00,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:00,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 17:04:00,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:00,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 17:04:00,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-11 17:04:00,288 INFO L87 Difference]: Start difference. First operand 6056 states and 6400 transitions. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:00,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:00,828 INFO L93 Difference]: Finished difference Result 11854 states and 12540 transitions. [2024-11-11 17:04:00,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 17:04:00,829 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 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 899 [2024-11-11 17:04:00,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:00,837 INFO L225 Difference]: With dead ends: 11854 [2024-11-11 17:04:00,838 INFO L226 Difference]: Without dead ends: 6106 [2024-11-11 17:04:00,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-11 17:04:00,844 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 46 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:00,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 22 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 17:04:00,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6106 states. [2024-11-11 17:04:00,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6106 to 6106. [2024-11-11 17:04:00,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6105 states have (on average 1.0465192465192465) internal successors, (6389), 6105 states have internal predecessors, (6389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:00,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 6389 transitions. [2024-11-11 17:04:00,911 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 6389 transitions. Word has length 899 [2024-11-11 17:04:00,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:00,912 INFO L471 AbstractCegarLoop]: Abstraction has 6106 states and 6389 transitions. [2024-11-11 17:04:00,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:00,912 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 6389 transitions. [2024-11-11 17:04:00,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 950 [2024-11-11 17:04:00,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:00,920 INFO L218 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 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, 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] [2024-11-11 17:04:00,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 17:04:00,920 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:00,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:00,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1130662458, now seen corresponding path program 1 times [2024-11-11 17:04:00,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:00,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208467305] [2024-11-11 17:04:00,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:00,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:01,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 573 proven. 390 refuted. 0 times theorem prover too weak. 1682 trivial. 0 not checked. [2024-11-11 17:04:01,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:01,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208467305] [2024-11-11 17:04:01,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208467305] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:04:01,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082749532] [2024-11-11 17:04:01,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:01,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:01,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:04:01,885 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) [2024-11-11 17:04:01,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-11 17:04:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:02,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:04:02,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:04:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 2296 trivial. 0 not checked. [2024-11-11 17:04:02,217 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:04:02,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082749532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:02,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:04:02,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-11 17:04:02,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633566035] [2024-11-11 17:04:02,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:02,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:02,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:02,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:02,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 17:04:02,219 INFO L87 Difference]: Start difference. First operand 6106 states and 6389 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:02,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:02,593 INFO L93 Difference]: Finished difference Result 7176 states and 7477 transitions. [2024-11-11 17:04:02,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:02,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 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 949 [2024-11-11 17:04:02,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:02,603 INFO L225 Difference]: With dead ends: 7176 [2024-11-11 17:04:02,604 INFO L226 Difference]: Without dead ends: 7174 [2024-11-11 17:04:02,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 953 GetRequests, 948 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 17:04:02,607 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 150 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:02,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 11 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 17:04:02,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7174 states. [2024-11-11 17:04:02,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7174 to 5928. [2024-11-11 17:04:02,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5927 states have (on average 1.0475788763286655) internal successors, (6209), 5927 states have internal predecessors, (6209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:02,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 6209 transitions. [2024-11-11 17:04:02,696 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 6209 transitions. Word has length 949 [2024-11-11 17:04:02,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:02,697 INFO L471 AbstractCegarLoop]: Abstraction has 5928 states and 6209 transitions. [2024-11-11 17:04:02,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:02,697 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 6209 transitions. [2024-11-11 17:04:02,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2024-11-11 17:04:02,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:02,706 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-11 17:04:02,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-11 17:04:02,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:02,908 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:02,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:02,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1433860886, now seen corresponding path program 1 times [2024-11-11 17:04:02,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:02,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791730290] [2024-11-11 17:04:02,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:02,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:04,144 INFO L134 CoverageAnalysis]: Checked inductivity of 3281 backedges. 1077 proven. 390 refuted. 0 times theorem prover too weak. 1814 trivial. 0 not checked. [2024-11-11 17:04:04,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:04,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791730290] [2024-11-11 17:04:04,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791730290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:04:04,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817054327] [2024-11-11 17:04:04,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:04,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:04,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:04:04,149 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) [2024-11-11 17:04:04,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-11 17:04:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:04,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:04:04,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:04:04,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3281 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 2882 trivial. 0 not checked. [2024-11-11 17:04:04,522 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:04:04,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817054327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:04,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:04:04,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-11 17:04:04,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267845319] [2024-11-11 17:04:04,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:04,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:04,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:04,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:04,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 17:04:04,525 INFO L87 Difference]: Start difference. First operand 5928 states and 6209 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:04,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:04,923 INFO L93 Difference]: Finished difference Result 6642 states and 6932 transitions. [2024-11-11 17:04:04,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:04,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 1036 [2024-11-11 17:04:04,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:04,929 INFO L225 Difference]: With dead ends: 6642 [2024-11-11 17:04:04,930 INFO L226 Difference]: Without dead ends: 6640 [2024-11-11 17:04:04,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 1035 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 17:04:04,932 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 150 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:04,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 11 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:04:04,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6640 states. [2024-11-11 17:04:04,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6640 to 5750. [2024-11-11 17:04:04,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5750 states, 5749 states have (on average 1.0483562358671072) internal successors, (6027), 5749 states have internal predecessors, (6027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:04,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5750 states to 5750 states and 6027 transitions. [2024-11-11 17:04:04,982 INFO L78 Accepts]: Start accepts. Automaton has 5750 states and 6027 transitions. Word has length 1036 [2024-11-11 17:04:04,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:04,982 INFO L471 AbstractCegarLoop]: Abstraction has 5750 states and 6027 transitions. [2024-11-11 17:04:04,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:04,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5750 states and 6027 transitions. [2024-11-11 17:04:04,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2024-11-11 17:04:04,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:04,993 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-11 17:04:05,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-11 17:04:05,197 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,SelfDestructingSolverStorable20 [2024-11-11 17:04:05,198 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:05,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:05,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1021024288, now seen corresponding path program 1 times [2024-11-11 17:04:05,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:05,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252261102] [2024-11-11 17:04:05,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:05,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:06,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3484 backedges. 1280 proven. 390 refuted. 0 times theorem prover too weak. 1814 trivial. 0 not checked. [2024-11-11 17:04:06,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:06,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252261102] [2024-11-11 17:04:06,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252261102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:04:06,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661435865] [2024-11-11 17:04:06,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:06,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:06,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:04:06,274 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) [2024-11-11 17:04:06,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-11 17:04:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:06,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 17:04:06,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:04:07,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3484 backedges. 1041 proven. 0 refuted. 0 times theorem prover too weak. 2443 trivial. 0 not checked. [2024-11-11 17:04:07,451 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:04:07,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661435865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:07,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:04:07,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-11 17:04:07,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352946899] [2024-11-11 17:04:07,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:07,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:07,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:07,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:07,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 17:04:07,454 INFO L87 Difference]: Start difference. First operand 5750 states and 6027 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:07,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:07,791 INFO L93 Difference]: Finished difference Result 12566 states and 13158 transitions. [2024-11-11 17:04:07,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:07,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1065 [2024-11-11 17:04:07,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:07,797 INFO L225 Difference]: With dead ends: 12566 [2024-11-11 17:04:07,797 INFO L226 Difference]: Without dead ends: 7174 [2024-11-11 17:04:07,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1069 GetRequests, 1064 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 17:04:07,802 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:07,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 50 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 17:04:07,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7174 states. [2024-11-11 17:04:07,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7174 to 6106. [2024-11-11 17:04:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6105 states have (on average 1.0478296478296478) internal successors, (6397), 6105 states have internal predecessors, (6397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:07,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 6397 transitions. [2024-11-11 17:04:07,857 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 6397 transitions. Word has length 1065 [2024-11-11 17:04:07,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:07,857 INFO L471 AbstractCegarLoop]: Abstraction has 6106 states and 6397 transitions. [2024-11-11 17:04:07,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:07,857 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 6397 transitions. [2024-11-11 17:04:07,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1195 [2024-11-11 17:04:07,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:07,870 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:04:07,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-11 17:04:08,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-11 17:04:08,071 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:08,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:08,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1602313078, now seen corresponding path program 1 times [2024-11-11 17:04:08,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:08,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795409166] [2024-11-11 17:04:08,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:08,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:08,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4779 backedges. 2081 proven. 0 refuted. 0 times theorem prover too weak. 2698 trivial. 0 not checked. [2024-11-11 17:04:08,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:08,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795409166] [2024-11-11 17:04:08,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795409166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:08,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:04:08,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:04:08,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703339695] [2024-11-11 17:04:08,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:08,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:08,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:08,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:08,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:08,931 INFO L87 Difference]: Start difference. First operand 6106 states and 6397 transitions. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:09,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:09,329 INFO L93 Difference]: Finished difference Result 12032 states and 12613 transitions. [2024-11-11 17:04:09,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:09,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1194 [2024-11-11 17:04:09,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:09,335 INFO L225 Difference]: With dead ends: 12032 [2024-11-11 17:04:09,335 INFO L226 Difference]: Without dead ends: 6106 [2024-11-11 17:04:09,340 INFO L434 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 [2024-11-11 17:04:09,341 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 71 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:09,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 237 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:04:09,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6106 states. [2024-11-11 17:04:09,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6106 to 5572. [2024-11-11 17:04:09,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 5571 states have (on average 1.0497217734697541) internal successors, (5848), 5571 states have internal predecessors, (5848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:09,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 5848 transitions. [2024-11-11 17:04:09,392 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 5848 transitions. Word has length 1194 [2024-11-11 17:04:09,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:09,393 INFO L471 AbstractCegarLoop]: Abstraction has 5572 states and 5848 transitions. [2024-11-11 17:04:09,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:09,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 5848 transitions. [2024-11-11 17:04:09,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1208 [2024-11-11 17:04:09,406 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:09,406 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:04:09,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-11 17:04:09,407 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:09,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:09,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1186088972, now seen corresponding path program 1 times [2024-11-11 17:04:09,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:09,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350345663] [2024-11-11 17:04:09,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:09,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:10,357 INFO L134 CoverageAnalysis]: Checked inductivity of 4296 backedges. 2275 proven. 95 refuted. 0 times theorem prover too weak. 1926 trivial. 0 not checked. [2024-11-11 17:04:10,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:10,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350345663] [2024-11-11 17:04:10,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350345663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:04:10,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414393934] [2024-11-11 17:04:10,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:10,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:10,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:04:10,360 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) [2024-11-11 17:04:10,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-11 17:04:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:10,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:04:10,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:04:10,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4296 backedges. 1216 proven. 0 refuted. 0 times theorem prover too weak. 3080 trivial. 0 not checked. [2024-11-11 17:04:10,793 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:04:10,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414393934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:10,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:04:10,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-11 17:04:10,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843100878] [2024-11-11 17:04:10,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:10,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:10,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:10,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:10,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:10,796 INFO L87 Difference]: Start difference. First operand 5572 states and 5848 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:11,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:11,168 INFO L93 Difference]: Finished difference Result 11318 states and 11874 transitions. [2024-11-11 17:04:11,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:11,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 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 1207 [2024-11-11 17:04:11,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:11,169 INFO L225 Difference]: With dead ends: 11318 [2024-11-11 17:04:11,169 INFO L226 Difference]: Without dead ends: 0 [2024-11-11 17:04:11,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1210 GetRequests, 1206 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:11,173 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 84 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:11,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 222 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 17:04:11,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-11 17:04:11,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-11 17:04:11,174 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) [2024-11-11 17:04:11,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-11 17:04:11,174 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1207 [2024-11-11 17:04:11,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:11,175 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-11 17:04:11,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:11,175 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-11 17:04:11,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-11 17:04:11,178 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 17:04:11,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-11 17:04:11,382 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,SelfDestructingSolverStorable23 [2024-11-11 17:04:11,385 INFO L421 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] [2024-11-11 17:04:11,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-11 17:04:12,637 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 17:04:12,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 05:04:12 BoogieIcfgContainer [2024-11-11 17:04:12,654 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 17:04:12,655 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 17:04:12,655 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 17:04:12,655 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 17:04:12,656 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 05:03:26" (3/4) ... [2024-11-11 17:04:12,658 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-11 17:04:12,686 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-11 17:04:12,690 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-11 17:04:12,691 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-11 17:04:12,692 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-11 17:04:12,859 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-11 17:04:12,860 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-11 17:04:12,860 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 17:04:12,861 INFO L158 Benchmark]: Toolchain (without parser) took 48987.93ms. Allocated memory was 148.9MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 88.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 170.8MB. Max. memory is 16.1GB. [2024-11-11 17:04:12,861 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 148.9MB. Free memory is still 109.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 17:04:12,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 671.46ms. Allocated memory was 148.9MB in the beginning and 213.9MB in the end (delta: 65.0MB). Free memory was 88.8MB in the beginning and 177.4MB in the end (delta: -88.6MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. [2024-11-11 17:04:12,863 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.21ms. Allocated memory is still 213.9MB. Free memory was 177.4MB in the beginning and 166.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-11 17:04:12,863 INFO L158 Benchmark]: Boogie Preprocessor took 164.39ms. Allocated memory is still 213.9MB. Free memory was 166.9MB in the beginning and 154.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-11 17:04:12,863 INFO L158 Benchmark]: RCFGBuilder took 1561.28ms. Allocated memory is still 213.9MB. Free memory was 154.3MB in the beginning and 154.9MB in the end (delta: -672.0kB). Peak memory consumption was 107.0MB. Max. memory is 16.1GB. [2024-11-11 17:04:12,863 INFO L158 Benchmark]: TraceAbstraction took 46284.43ms. Allocated memory was 213.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 153.9MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 890.1MB. Max. memory is 16.1GB. [2024-11-11 17:04:12,865 INFO L158 Benchmark]: Witness Printer took 205.11ms. Allocated memory is still 1.5GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-11 17:04:12,866 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 148.9MB. Free memory is still 109.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 671.46ms. Allocated memory was 148.9MB in the beginning and 213.9MB in the end (delta: 65.0MB). Free memory was 88.8MB in the beginning and 177.4MB in the end (delta: -88.6MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.21ms. Allocated memory is still 213.9MB. Free memory was 177.4MB in the beginning and 166.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 164.39ms. Allocated memory is still 213.9MB. Free memory was 166.9MB in the beginning and 154.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1561.28ms. Allocated memory is still 213.9MB. Free memory was 154.3MB in the beginning and 154.9MB in the end (delta: -672.0kB). Peak memory consumption was 107.0MB. Max. memory is 16.1GB. * TraceAbstraction took 46284.43ms. Allocated memory was 213.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 153.9MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 890.1MB. Max. memory is 16.1GB. * Witness Printer took 205.11ms. Allocated memory is still 1.5GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 170]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.9s, OverallIterations: 24, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2783 SdHoareTripleChecker+Valid, 12.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2783 mSDsluCounter, 2531 SdHoareTripleChecker+Invalid, 10.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140 mSDsCounter, 1495 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13030 IncrementalHoareTripleChecker+Invalid, 14525 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1495 mSolverCounterUnsat, 2391 mSDtfsCounter, 13030 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10692 GetRequests, 10613 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6768occurred in iteration=15, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 24 MinimizatonAttempts, 8544 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 21.2s InterpolantComputationTime, 24994 NumberOfCodeBlocks, 24994 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 26438 ConstructedInterpolants, 172 QuantifiedInterpolants, 92271 SizeOfPredicates, 2 NumberOfNonLiveVariables, 11268 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 38 InterpolantComputations, 23 PerfectInterpolantSequences, 66534/69248 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: 890]: Loop Invariant Derived loop invariant: ((((((((((((a21 == 8) && (a24 == 1)) && (((((long long) a12 * 9) >= 0) ? (((long long) a12 * 9) / 10) : ((((long long) a12 * 9) / 10) - 1)) <= 545613)) && (8 <= a15)) || ((((7 <= a15) && (a24 == 1)) && (((((long long) a12 * 9) >= 0) ? (((long long) a12 * 9) / 10) : ((((long long) a12 * 9) / 10) - 1)) <= 545613)) && (81 <= a12))) || (((((long long) a12 + 43) <= 0) && (a24 == 1)) && (10 <= a21))) || (((((a24 == 1) && (5 == a15)) && (a21 == 6)) && (((((long long) a12 * 9) >= 0) ? (((long long) a12 * 9) / 10) : ((((long long) a12 * 9) / 10) - 1)) <= 545613)) && (81 <= a12))) || (((((6 <= a15) && (a24 == 1)) && (a21 == 9)) && (((((long long) a12 * 9) >= 0) ? (((long long) a12 * 9) / 10) : ((((long long) a12 * 9) / 10) - 1)) <= 545613)) && (81 <= a12))) || (((((long long) a12 + 43) <= 0) && (a15 <= 8)) && (a21 <= 6))) || ((((a12 <= 73282) && (a24 == 1)) && (a15 <= 8)) && (a21 != 6))) || ((((a12 <= 11) && (a24 == 1)) && (0 <= ((long long) a12 + 42))) && (8 <= a15))) || (((((6 <= a15) && (a24 == 1)) && (a15 <= 8)) && (a21 <= 6)) && (((((long long) a12 * 9) >= 0) ? (((long long) a12 * 9) / 10) : ((((long long) a12 * 9) / 10) - 1)) <= 545613))) RESULT: Ultimate proved your program to be correct! [2024-11-11 17:04:12,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE