./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/reducercommutativity/sep05-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/reducercommutativity/sep05-1.i -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 ac50477087b7e2b9c80860ad42d4d46d99ddf32e797cee205c21d5ff44f08ec3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-21 20:43:57,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 20:43:57,474 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-21 20:43:57,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 20:43:57,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 20:43:57,513 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 20:43:57,514 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 20:43:57,514 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 20:43:57,514 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-21 20:43:57,515 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-21 20:43:57,517 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 20:43:57,517 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 20:43:57,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 20:43:57,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 20:43:57,520 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 20:43:57,520 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 20:43:57,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 20:43:57,521 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 20:43:57,521 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 20:43:57,521 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 20:43:57,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 20:43:57,524 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 20:43:57,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 20:43:57,525 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 20:43:57,525 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-21 20:43:57,525 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 20:43:57,525 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 20:43:57,526 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 20:43:57,526 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 20:43:57,526 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 20:43:57,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 20:43:57,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 20:43:57,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 20:43:57,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 20:43:57,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 20:43:57,528 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 20:43:57,528 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 20:43:57,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 20:43:57,529 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 20:43:57,529 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-21 20:43:57,530 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-21 20:43:57,530 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-21 20:43:57,530 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac50477087b7e2b9c80860ad42d4d46d99ddf32e797cee205c21d5ff44f08ec3 [2024-11-21 20:43:57,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 20:43:57,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 20:43:57,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 20:43:57,808 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 20:43:57,809 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 20:43:57,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/sep05-1.i [2024-11-21 20:43:59,287 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-21 20:43:59,462 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 20:43:59,463 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/sep05-1.i [2024-11-21 20:43:59,469 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e90bff5/fb13128dd2c34a568aef0e1bc9435f8a/FLAGb56da52cf [2024-11-21 20:43:59,482 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e90bff5/fb13128dd2c34a568aef0e1bc9435f8a [2024-11-21 20:43:59,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 20:43:59,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 20:43:59,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 20:43:59,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 20:43:59,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 20:43:59,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,493 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78dc7e95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59, skipping insertion in model container [2024-11-21 20:43:59,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,513 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 20:43:59,693 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/reducercommutativity/sep05-1.i[1287,1300] [2024-11-21 20:43:59,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 20:43:59,701 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 20:43:59,719 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/reducercommutativity/sep05-1.i[1287,1300] [2024-11-21 20:43:59,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 20:43:59,732 INFO L204 MainTranslator]: Completed translation [2024-11-21 20:43:59,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59 WrapperNode [2024-11-21 20:43:59,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 20:43:59,734 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 20:43:59,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 20:43:59,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 20:43:59,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,745 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,761 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2024-11-21 20:43:59,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 20:43:59,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 20:43:59,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 20:43:59,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 20:43:59,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,774 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,786 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 5 writes are split as follows [0, 5]. [2024-11-21 20:43:59,786 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,787 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 20:43:59,809 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 20:43:59,810 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 20:43:59,810 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 20:43:59,810 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59" (1/1) ... [2024-11-21 20:43:59,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 20:43:59,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:43:59,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-21 20:43:59,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-21 20:43:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 20:43:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-21 20:43:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-21 20:43:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-21 20:43:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-21 20:43:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-21 20:43:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 20:43:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 20:43:59,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-21 20:43:59,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-21 20:43:59,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-21 20:43:59,913 INFO L130 BoogieDeclarations]: Found specification of procedure sep [2024-11-21 20:43:59,914 INFO L138 BoogieDeclarations]: Found implementation of procedure sep [2024-11-21 20:44:00,053 INFO L238 CfgBuilder]: Building ICFG [2024-11-21 20:44:00,055 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 20:44:00,232 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-21 20:44:00,232 INFO L287 CfgBuilder]: Performing block encoding [2024-11-21 20:44:00,245 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 20:44:00,247 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-21 20:44:00,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:44:00 BoogieIcfgContainer [2024-11-21 20:44:00,248 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 20:44:00,250 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 20:44:00,251 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 20:44:00,254 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 20:44:00,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:43:59" (1/3) ... [2024-11-21 20:44:00,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a658f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:44:00, skipping insertion in model container [2024-11-21 20:44:00,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:43:59" (2/3) ... [2024-11-21 20:44:00,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a658f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:44:00, skipping insertion in model container [2024-11-21 20:44:00,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:44:00" (3/3) ... [2024-11-21 20:44:00,257 INFO L112 eAbstractionObserver]: Analyzing ICFG sep05-1.i [2024-11-21 20:44:00,276 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 20:44:00,276 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-21 20:44:00,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-21 20:44:00,335 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;@3752e361, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 20:44:00,335 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 20:44:00,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-21 20:44:00,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-21 20:44:00,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:44:00,348 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 20:44:00,349 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:44:00,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:44:00,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1179968903, now seen corresponding path program 1 times [2024-11-21 20:44:00,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:44:00,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382720871] [2024-11-21 20:44:00,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:44:00,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:44:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:44:00,613 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-21 20:44:00,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:44:00,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382720871] [2024-11-21 20:44:00,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382720871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 20:44:00,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 20:44:00,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 20:44:00,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251020113] [2024-11-21 20:44:00,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 20:44:00,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 20:44:00,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:44:00,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 20:44:00,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 20:44:00,648 INFO L87 Difference]: Start difference. First operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-21 20:44:00,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:44:00,690 INFO L93 Difference]: Finished difference Result 54 states and 75 transitions. [2024-11-21 20:44:00,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 20:44:00,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-21 20:44:00,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:44:00,700 INFO L225 Difference]: With dead ends: 54 [2024-11-21 20:44:00,701 INFO L226 Difference]: Without dead ends: 26 [2024-11-21 20:44:00,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 20:44:00,709 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 1 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 20:44:00,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 58 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 20:44:00,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-21 20:44:00,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2024-11-21 20:44:00,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-21 20:44:00,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2024-11-21 20:44:00,753 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 29 [2024-11-21 20:44:00,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:44:00,754 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-11-21 20:44:00,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-21 20:44:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-11-21 20:44:00,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-21 20:44:00,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:44:00,757 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 20:44:00,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 20:44:00,758 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:44:00,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:44:00,760 INFO L85 PathProgramCache]: Analyzing trace with hash 802434324, now seen corresponding path program 1 times [2024-11-21 20:44:00,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:44:00,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105694211] [2024-11-21 20:44:00,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:44:00,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:44:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:44:00,900 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-21 20:44:00,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:44:00,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105694211] [2024-11-21 20:44:00,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105694211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 20:44:00,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329553316] [2024-11-21 20:44:00,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:44:00,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:00,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:44:00,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 20:44:00,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-21 20:44:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:44:01,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-21 20:44:01,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 20:44:01,052 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-21 20:44:01,054 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 20:44:01,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329553316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 20:44:01,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 20:44:01,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-21 20:44:01,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094077138] [2024-11-21 20:44:01,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 20:44:01,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 20:44:01,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:44:01,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 20:44:01,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 20:44:01,058 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-21 20:44:01,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:44:01,075 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2024-11-21 20:44:01,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 20:44:01,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-11-21 20:44:01,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:44:01,077 INFO L225 Difference]: With dead ends: 46 [2024-11-21 20:44:01,078 INFO L226 Difference]: Without dead ends: 28 [2024-11-21 20:44:01,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 20:44:01,080 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 20:44:01,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 51 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 20:44:01,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-21 20:44:01,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-11-21 20:44:01,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-21 20:44:01,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2024-11-21 20:44:01,088 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 31 [2024-11-21 20:44:01,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:44:01,088 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2024-11-21 20:44:01,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-21 20:44:01,089 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-11-21 20:44:01,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-21 20:44:01,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:44:01,090 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 20:44:01,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-21 20:44:01,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:01,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:44:01,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:44:01,292 INFO L85 PathProgramCache]: Analyzing trace with hash -621262767, now seen corresponding path program 1 times [2024-11-21 20:44:01,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:44:01,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692374581] [2024-11-21 20:44:01,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:44:01,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:44:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:44:01,449 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-21 20:44:01,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:44:01,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692374581] [2024-11-21 20:44:01,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692374581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 20:44:01,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217065107] [2024-11-21 20:44:01,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:44:01,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:01,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:44:01,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 20:44:01,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 20:44:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:44:01,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-21 20:44:01,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 20:44:01,574 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-21 20:44:01,576 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 20:44:01,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217065107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 20:44:01,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 20:44:01,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-21 20:44:01,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65773222] [2024-11-21 20:44:01,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 20:44:01,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 20:44:01,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:44:01,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 20:44:01,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 20:44:01,582 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-21 20:44:01,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:44:01,602 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2024-11-21 20:44:01,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 20:44:01,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-11-21 20:44:01,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:44:01,603 INFO L225 Difference]: With dead ends: 42 [2024-11-21 20:44:01,603 INFO L226 Difference]: Without dead ends: 28 [2024-11-21 20:44:01,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 20:44:01,605 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 20:44:01,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 50 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 20:44:01,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-21 20:44:01,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-11-21 20:44:01,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-21 20:44:01,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2024-11-21 20:44:01,611 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 40 [2024-11-21 20:44:01,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:44:01,614 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2024-11-21 20:44:01,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-21 20:44:01,615 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2024-11-21 20:44:01,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-21 20:44:01,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:44:01,616 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 20:44:01,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-21 20:44:01,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-21 20:44:01,821 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:44:01,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:44:01,821 INFO L85 PathProgramCache]: Analyzing trace with hash -862308077, now seen corresponding path program 1 times [2024-11-21 20:44:01,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:44:01,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454890926] [2024-11-21 20:44:01,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:44:01,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:44:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:44:01,935 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-21 20:44:01,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:44:01,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454890926] [2024-11-21 20:44:01,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454890926] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 20:44:01,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382825246] [2024-11-21 20:44:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:44:01,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:01,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:44:01,940 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 20:44:01,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-21 20:44:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:44:02,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 20:44:02,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 20:44:02,058 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-21 20:44:02,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 20:44:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-21 20:44:02,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382825246] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 20:44:02,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 20:44:02,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-21 20:44:02,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055464949] [2024-11-21 20:44:02,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 20:44:02,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-21 20:44:02,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:44:02,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-21 20:44:02,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-21 20:44:02,121 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-21 20:44:02,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:44:02,154 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2024-11-21 20:44:02,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 20:44:02,155 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 42 [2024-11-21 20:44:02,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:44:02,155 INFO L225 Difference]: With dead ends: 55 [2024-11-21 20:44:02,156 INFO L226 Difference]: Without dead ends: 33 [2024-11-21 20:44:02,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-21 20:44:02,157 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 20:44:02,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 75 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 20:44:02,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-21 20:44:02,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-21 20:44:02,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-21 20:44:02,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2024-11-21 20:44:02,167 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 42 [2024-11-21 20:44:02,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:44:02,169 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2024-11-21 20:44:02,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-21 20:44:02,169 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2024-11-21 20:44:02,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-21 20:44:02,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:44:02,171 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 20:44:02,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-21 20:44:02,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:02,372 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:44:02,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:44:02,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1955489561, now seen corresponding path program 2 times [2024-11-21 20:44:02,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:44:02,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086577691] [2024-11-21 20:44:02,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 20:44:02,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:44:02,417 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 20:44:02,417 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 20:44:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-21 20:44:02,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:44:02,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086577691] [2024-11-21 20:44:02,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086577691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 20:44:02,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733653295] [2024-11-21 20:44:02,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 20:44:02,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:02,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:44:02,483 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 20:44:02,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-21 20:44:02,572 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 20:44:02,572 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 20:44:02,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-21 20:44:02,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 20:44:02,663 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-21 20:44:02,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 20:44:02,734 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-21 20:44:02,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733653295] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 20:44:02,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 20:44:02,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 9 [2024-11-21 20:44:02,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033260672] [2024-11-21 20:44:02,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 20:44:02,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-21 20:44:02,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:44:02,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-21 20:44:02,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-21 20:44:02,738 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-21 20:44:02,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:44:02,801 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2024-11-21 20:44:02,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-21 20:44:02,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 48 [2024-11-21 20:44:02,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:44:02,802 INFO L225 Difference]: With dead ends: 62 [2024-11-21 20:44:02,802 INFO L226 Difference]: Without dead ends: 40 [2024-11-21 20:44:02,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 86 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-21 20:44:02,805 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 5 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 20:44:02,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 135 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 20:44:02,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-21 20:44:02,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2024-11-21 20:44:02,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 33 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-21 20:44:02,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2024-11-21 20:44:02,813 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 48 [2024-11-21 20:44:02,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:44:02,813 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2024-11-21 20:44:02,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-21 20:44:02,814 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2024-11-21 20:44:02,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-21 20:44:02,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:44:02,816 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 20:44:02,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-21 20:44:03,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:03,017 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:44:03,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:44:03,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1742720554, now seen corresponding path program 3 times [2024-11-21 20:44:03,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:44:03,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900787945] [2024-11-21 20:44:03,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-21 20:44:03,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:44:03,057 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-21 20:44:03,057 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 20:44:03,116 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-21 20:44:03,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:44:03,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900787945] [2024-11-21 20:44:03,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900787945] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 20:44:03,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319127496] [2024-11-21 20:44:03,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-21 20:44:03,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:03,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:44:03,120 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 20:44:03,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-21 20:44:03,201 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-21 20:44:03,201 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 20:44:03,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-21 20:44:03,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 20:44:03,228 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-21 20:44:03,228 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 20:44:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-21 20:44:03,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319127496] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 20:44:03,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 20:44:03,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-21 20:44:03,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243651291] [2024-11-21 20:44:03,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 20:44:03,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-21 20:44:03,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:44:03,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-21 20:44:03,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-21 20:44:03,281 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-21 20:44:03,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:44:03,313 INFO L93 Difference]: Finished difference Result 70 states and 89 transitions. [2024-11-21 20:44:03,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-21 20:44:03,315 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59 [2024-11-21 20:44:03,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:44:03,316 INFO L225 Difference]: With dead ends: 70 [2024-11-21 20:44:03,316 INFO L226 Difference]: Without dead ends: 47 [2024-11-21 20:44:03,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-21 20:44:03,317 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 12 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 20:44:03,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 79 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 20:44:03,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-21 20:44:03,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-21 20:44:03,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 42 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-21 20:44:03,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2024-11-21 20:44:03,329 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 59 [2024-11-21 20:44:03,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:44:03,330 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2024-11-21 20:44:03,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-21 20:44:03,330 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2024-11-21 20:44:03,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-21 20:44:03,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:44:03,331 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 20:44:03,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-21 20:44:03,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:03,532 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:44:03,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:44:03,532 INFO L85 PathProgramCache]: Analyzing trace with hash 331100635, now seen corresponding path program 4 times [2024-11-21 20:44:03,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:44:03,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251463072] [2024-11-21 20:44:03,532 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-21 20:44:03,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:44:03,632 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-21 20:44:03,632 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 20:44:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-11-21 20:44:03,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:44:03,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251463072] [2024-11-21 20:44:03,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251463072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 20:44:03,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662628660] [2024-11-21 20:44:03,783 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-21 20:44:03,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:03,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:44:03,786 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 20:44:03,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-21 20:44:03,919 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-21 20:44:03,919 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 20:44:03,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 20:44:03,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 20:44:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 180 proven. 1 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-21 20:44:03,935 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 20:44:03,965 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-11-21 20:44:03,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662628660] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 20:44:03,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 20:44:03,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-21 20:44:03,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625701834] [2024-11-21 20:44:03,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 20:44:03,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-21 20:44:03,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:44:03,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-21 20:44:03,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-21 20:44:03,970 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-21 20:44:04,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:44:04,005 INFO L93 Difference]: Finished difference Result 79 states and 96 transitions. [2024-11-21 20:44:04,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 20:44:04,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2024-11-21 20:44:04,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:44:04,006 INFO L225 Difference]: With dead ends: 79 [2024-11-21 20:44:04,007 INFO L226 Difference]: Without dead ends: 53 [2024-11-21 20:44:04,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-21 20:44:04,007 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 20:44:04,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 73 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 20:44:04,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-21 20:44:04,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-21 20:44:04,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 48 states have internal predecessors, (56), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-21 20:44:04,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2024-11-21 20:44:04,019 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 62 transitions. Word has length 86 [2024-11-21 20:44:04,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:44:04,020 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 62 transitions. [2024-11-21 20:44:04,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-21 20:44:04,021 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2024-11-21 20:44:04,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-21 20:44:04,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:44:04,023 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 20:44:04,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-21 20:44:04,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:04,224 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:44:04,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:44:04,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1511214559, now seen corresponding path program 5 times [2024-11-21 20:44:04,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:44:04,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730864153] [2024-11-21 20:44:04,225 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-21 20:44:04,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:44:04,464 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-11-21 20:44:04,464 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 20:44:06,630 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 315 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-21 20:44:06,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:44:06,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730864153] [2024-11-21 20:44:06,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730864153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 20:44:06,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112822763] [2024-11-21 20:44:06,632 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-21 20:44:06,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:06,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:44:06,634 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 20:44:06,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-21 20:44:07,138 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-11-21 20:44:07,138 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 20:44:07,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-11-21 20:44:07,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 20:44:07,350 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 315 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-21 20:44:07,351 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 20:44:07,944 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 4 proven. 315 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-21 20:44:07,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112822763] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 20:44:07,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 20:44:07,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 25 [2024-11-21 20:44:07,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006617513] [2024-11-21 20:44:07,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 20:44:07,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-21 20:44:07,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:44:07,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-21 20:44:07,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2024-11-21 20:44:07,948 INFO L87 Difference]: Start difference. First operand 53 states and 62 transitions. Second operand has 25 states, 24 states have (on average 2.375) internal successors, (57), 20 states have internal predecessors, (57), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-21 20:44:08,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:44:08,244 INFO L93 Difference]: Finished difference Result 134 states and 169 transitions. [2024-11-21 20:44:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-21 20:44:08,245 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.375) internal successors, (57), 20 states have internal predecessors, (57), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 92 [2024-11-21 20:44:08,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:44:08,251 INFO L225 Difference]: With dead ends: 134 [2024-11-21 20:44:08,251 INFO L226 Difference]: Without dead ends: 130 [2024-11-21 20:44:08,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2024-11-21 20:44:08,252 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 14 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-21 20:44:08,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 807 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-21 20:44:08,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-21 20:44:08,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 109. [2024-11-21 20:44:08,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 101 states have (on average 1.2574257425742574) internal successors, (127), 102 states have internal predecessors, (127), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-21 20:44:08,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 141 transitions. [2024-11-21 20:44:08,281 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 141 transitions. Word has length 92 [2024-11-21 20:44:08,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:44:08,282 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 141 transitions. [2024-11-21 20:44:08,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.375) internal successors, (57), 20 states have internal predecessors, (57), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-21 20:44:08,283 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 141 transitions. [2024-11-21 20:44:08,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-21 20:44:08,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:44:08,288 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 5, 5, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 20:44:08,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-21 20:44:08,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:08,489 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:44:08,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:44:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash -831156189, now seen corresponding path program 1 times [2024-11-21 20:44:08,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:44:08,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535228606] [2024-11-21 20:44:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:44:08,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:44:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:44:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 179 proven. 171 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-21 20:44:10,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:44:10,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535228606] [2024-11-21 20:44:10,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535228606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 20:44:10,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513150423] [2024-11-21 20:44:10,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:44:10,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:44:10,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:44:10,703 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 20:44:10,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-21 20:44:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:44:10,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-21 20:44:10,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 20:44:11,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-21 20:44:11,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-21 20:44:19,762 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 181 proven. 132 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-21 20:44:19,763 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 20:44:20,488 INFO L349 Elim1Store]: treesize reduction 4, result has 73.3 percent of original size [2024-11-21 20:44:20,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2024-11-21 20:44:20,552 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 191 proven. 120 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-21 20:44:20,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513150423] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 20:44:20,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 20:44:20,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 16, 15] total 46 [2024-11-21 20:44:20,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073003205] [2024-11-21 20:44:20,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 20:44:20,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-21 20:44:20,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:44:20,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-21 20:44:20,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1914, Unknown=2, NotChecked=0, Total=2070 [2024-11-21 20:44:20,558 INFO L87 Difference]: Start difference. First operand 109 states and 141 transitions. Second operand has 46 states, 44 states have (on average 2.7954545454545454) internal successors, (123), 43 states have internal predecessors, (123), 4 states have call successors, (7), 2 states have call predecessors, (7), 6 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-21 20:44:24,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:44:28,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:44:30,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:44:34,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:44:45,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:44:49,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:44:57,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:44:59,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:45:03,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:45:07,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:45:15,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:45:19,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:45:23,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:45:27,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-21 20:45:35,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]