./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/reducercommutativity/max40-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/reducercommutativity/max40-1.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 a8d5806586012290ae42296af495175d1f0a3275a3232981eda33ec55888f6d2 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 15:29:57,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 15:29:57,700 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 15:29:57,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 15:29:57,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 15:29:57,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 15:29:57,729 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 15:29:57,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 15:29:57,730 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 15:29:57,731 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 15:29:57,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 15:29:57,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 15:29:57,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 15:29:57,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 15:29:57,733 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 15:29:57,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 15:29:57,735 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 15:29:57,736 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 15:29:57,736 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 15:29:57,736 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 15:29:57,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 15:29:57,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 15:29:57,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 15:29:57,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 15:29:57,737 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 15:29:57,737 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 15:29:57,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 15:29:57,737 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 15:29:57,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 15:29:57,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 15:29:57,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 15:29:57,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 15:29:57,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 15:29:57,738 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 15:29:57,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 15:29:57,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 15:29:57,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 15:29:57,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 15:29:57,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 15:29:57,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 15:29:57,739 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 15:29:57,740 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 15:29:57,740 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8d5806586012290ae42296af495175d1f0a3275a3232981eda33ec55888f6d2 [2024-11-11 15:29:57,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 15:29:57,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 15:29:57,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 15:29:57,964 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 15:29:57,964 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 15:29:57,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/max40-1.i [2024-11-11 15:29:59,336 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 15:29:59,485 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 15:29:59,486 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max40-1.i [2024-11-11 15:29:59,492 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b50436494/c4055b15f37f41a98af0d0eed5456667/FLAGa6f823439 [2024-11-11 15:29:59,503 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b50436494/c4055b15f37f41a98af0d0eed5456667 [2024-11-11 15:29:59,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 15:29:59,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 15:29:59,508 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 15:29:59,508 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 15:29:59,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 15:29:59,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,515 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7899d662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59, skipping insertion in model container [2024-11-11 15:29:59,515 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,531 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 15:29:59,659 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/max40-1.i[1290,1303] [2024-11-11 15:29:59,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 15:29:59,668 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 15:29:59,682 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/max40-1.i[1290,1303] [2024-11-11 15:29:59,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 15:29:59,695 INFO L204 MainTranslator]: Completed translation [2024-11-11 15:29:59,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59 WrapperNode [2024-11-11 15:29:59,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 15:29:59,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 15:29:59,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 15:29:59,697 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 15:29:59,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,719 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2024-11-11 15:29:59,720 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 15:29:59,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 15:29:59,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 15:29:59,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 15:29:59,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,771 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 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]. [2024-11-11 15:29:59,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,795 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 15:29:59,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 15:29:59,817 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 15:29:59,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 15:29:59,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59" (1/1) ... [2024-11-11 15:29:59,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 15:29:59,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:29:59,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 15:29:59,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 15:29:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 15:29:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure max [2024-11-11 15:29:59,892 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2024-11-11 15:29:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 15:29:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 15:29:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 15:29:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-11 15:29:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-11 15:29:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 15:29:59,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 15:29:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-11 15:29:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-11 15:29:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 15:29:59,964 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 15:29:59,966 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 15:30:00,104 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-11 15:30:00,105 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 15:30:00,116 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 15:30:00,117 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-11 15:30:00,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 03:30:00 BoogieIcfgContainer [2024-11-11 15:30:00,118 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 15:30:00,120 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 15:30:00,120 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 15:30:00,122 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 15:30:00,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 03:29:59" (1/3) ... [2024-11-11 15:30:00,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6a68f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 03:30:00, skipping insertion in model container [2024-11-11 15:30:00,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:29:59" (2/3) ... [2024-11-11 15:30:00,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6a68f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 03:30:00, skipping insertion in model container [2024-11-11 15:30:00,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 03:30:00" (3/3) ... [2024-11-11 15:30:00,126 INFO L112 eAbstractionObserver]: Analyzing ICFG max40-1.i [2024-11-11 15:30:00,140 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 15:30:00,140 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 15:30:00,193 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 15:30:00,200 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;@66dbc71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 15:30:00,201 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 15:30:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 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) [2024-11-11 15:30:00,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-11 15:30:00,210 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:00,210 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:30:00,211 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:00,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:00,215 INFO L85 PathProgramCache]: Analyzing trace with hash 350697856, now seen corresponding path program 1 times [2024-11-11 15:30:00,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:00,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117036928] [2024-11-11 15:30:00,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:00,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:00,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 15:30:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:00,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 15:30:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:00,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-11 15:30:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:00,428 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 15:30:00,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:00,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117036928] [2024-11-11 15:30:00,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117036928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 15:30:00,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 15:30:00,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 15:30:00,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516944173] [2024-11-11 15:30:00,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 15:30:00,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 15:30:00,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:00,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 15:30:00,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 15:30:00,453 INFO L87 Difference]: Start difference. First operand has 29 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 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) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2024-11-11 15:30:00,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:00,466 INFO L93 Difference]: Finished difference Result 54 states and 73 transitions. [2024-11-11 15:30:00,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 15:30:00,468 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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 [2024-11-11 15:30:00,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:00,472 INFO L225 Difference]: With dead ends: 54 [2024-11-11 15:30:00,473 INFO L226 Difference]: Without dead ends: 25 [2024-11-11 15:30:00,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 15:30:00,477 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 15:30:00,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 15:30:00,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-11 15:30:00,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-11 15:30:00,501 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) [2024-11-11 15:30:00,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2024-11-11 15:30:00,503 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 29 [2024-11-11 15:30:00,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:00,503 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-11-11 15:30:00,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2024-11-11 15:30:00,504 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-11-11 15:30:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-11 15:30:00,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:00,505 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:30:00,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 15:30:00,505 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:00,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:00,506 INFO L85 PathProgramCache]: Analyzing trace with hash -731724275, now seen corresponding path program 1 times [2024-11-11 15:30:00,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:00,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549409081] [2024-11-11 15:30:00,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:00,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:00,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 15:30:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:00,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 15:30:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:00,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-11 15:30:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:00,665 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-11 15:30:00,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:00,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549409081] [2024-11-11 15:30:00,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549409081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:00,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566069360] [2024-11-11 15:30:00,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:00,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:00,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:00,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:00,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 15:30:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:00,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 15:30:00,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:30:00,790 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 15:30:00,792 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 15:30:00,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566069360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 15:30:00,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 15:30:00,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-11 15:30:00,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734562415] [2024-11-11 15:30:00,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 15:30:00,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 15:30:00,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:00,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 15:30:00,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 15:30:00,795 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. 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) [2024-11-11 15:30:00,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:00,818 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2024-11-11 15:30:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 15:30:00,818 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 [2024-11-11 15:30:00,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:00,819 INFO L225 Difference]: With dead ends: 48 [2024-11-11 15:30:00,820 INFO L226 Difference]: Without dead ends: 27 [2024-11-11 15:30:00,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 15:30:00,822 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 53 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 [2024-11-11 15:30:00,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 53 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 15:30:00,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-11 15:30:00,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2024-11-11 15:30:00,828 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) [2024-11-11 15:30:00,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2024-11-11 15:30:00,830 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 29 [2024-11-11 15:30:00,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:00,830 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2024-11-11 15:30:00,830 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) [2024-11-11 15:30:00,831 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-11-11 15:30:00,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-11 15:30:00,832 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:00,832 INFO L218 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] [2024-11-11 15:30:00,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 15:30:01,036 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 [2024-11-11 15:30:01,037 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:01,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:01,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1391874411, now seen corresponding path program 1 times [2024-11-11 15:30:01,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:01,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266740788] [2024-11-11 15:30:01,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:01,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:01,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 15:30:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:01,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 15:30:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:01,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 15:30:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:01,117 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 15:30:01,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:01,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266740788] [2024-11-11 15:30:01,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266740788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:01,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602598270] [2024-11-11 15:30:01,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:01,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:01,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:01,119 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:01,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 15:30:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:01,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 15:30:01,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:30:01,200 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 15:30:01,200 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 15:30:01,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602598270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 15:30:01,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 15:30:01,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-11 15:30:01,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996747624] [2024-11-11 15:30:01,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 15:30:01,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 15:30:01,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:01,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 15:30:01,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 15:30:01,203 INFO L87 Difference]: Start difference. First operand 26 states and 31 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) [2024-11-11 15:30:01,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:01,222 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2024-11-11 15:30:01,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 15:30:01,223 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 [2024-11-11 15:30:01,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:01,224 INFO L225 Difference]: With dead ends: 49 [2024-11-11 15:30:01,224 INFO L226 Difference]: Without dead ends: 30 [2024-11-11 15:30:01,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 15:30:01,225 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 4 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 52 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 [2024-11-11 15:30:01,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 52 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 15:30:01,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-11 15:30:01,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2024-11-11 15:30:01,230 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) [2024-11-11 15:30:01,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2024-11-11 15:30:01,230 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 31 [2024-11-11 15:30:01,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:01,231 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2024-11-11 15:30:01,231 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) [2024-11-11 15:30:01,231 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2024-11-11 15:30:01,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-11 15:30:01,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:01,238 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2024-11-11 15:30:01,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 15:30:01,438 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 [2024-11-11 15:30:01,439 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:01,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:01,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1997828742, now seen corresponding path program 1 times [2024-11-11 15:30:01,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:01,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606431243] [2024-11-11 15:30:01,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:01,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:01,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 15:30:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:01,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 15:30:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:01,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 15:30:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:01,580 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 15:30:01,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:01,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606431243] [2024-11-11 15:30:01,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606431243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:01,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643042228] [2024-11-11 15:30:01,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:01,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:01,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:01,586 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:01,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 15:30:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:01,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 15:30:01,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:30:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 15:30:01,679 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 15:30:01,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643042228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 15:30:01,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 15:30:01,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-11 15:30:01,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296301622] [2024-11-11 15:30:01,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 15:30:01,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 15:30:01,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:01,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 15:30:01,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 15:30:01,681 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-11 15:30:01,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:01,695 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2024-11-11 15:30:01,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 15:30:01,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 43 [2024-11-11 15:30:01,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:01,697 INFO L225 Difference]: With dead ends: 44 [2024-11-11 15:30:01,698 INFO L226 Difference]: Without dead ends: 29 [2024-11-11 15:30:01,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 15:30:01,699 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 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 [2024-11-11 15:30:01,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 15:30:01,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-11 15:30:01,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2024-11-11 15:30:01,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 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) [2024-11-11 15:30:01,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2024-11-11 15:30:01,706 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 43 [2024-11-11 15:30:01,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:01,707 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2024-11-11 15:30:01,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-11 15:30:01,707 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2024-11-11 15:30:01,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-11 15:30:01,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:01,710 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2024-11-11 15:30:01,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-11 15:30:01,910 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 [2024-11-11 15:30:01,911 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:01,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:01,911 INFO L85 PathProgramCache]: Analyzing trace with hash 271283108, now seen corresponding path program 1 times [2024-11-11 15:30:01,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:01,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455198580] [2024-11-11 15:30:01,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:01,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:01,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 15:30:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:02,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 15:30:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:02,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 15:30:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:02,024 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-11 15:30:02,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:02,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455198580] [2024-11-11 15:30:02,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455198580] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:02,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052074665] [2024-11-11 15:30:02,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:02,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:02,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:02,030 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:02,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 15:30:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:02,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 15:30:02,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:30:02,134 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 15:30:02,134 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:30:02,166 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 15:30:02,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052074665] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:30:02,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:30:02,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2024-11-11 15:30:02,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260517168] [2024-11-11 15:30:02,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:30:02,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 15:30:02,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:02,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 15:30:02,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-11 15:30:02,168 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 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) [2024-11-11 15:30:02,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:02,204 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions. [2024-11-11 15:30:02,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 15:30:02,204 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 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 45 [2024-11-11 15:30:02,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:02,205 INFO L225 Difference]: With dead ends: 64 [2024-11-11 15:30:02,205 INFO L226 Difference]: Without dead ends: 41 [2024-11-11 15:30:02,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-11 15:30:02,206 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 8 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 15:30:02,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 94 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 15:30:02,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-11 15:30:02,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2024-11-11 15:30:02,210 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) [2024-11-11 15:30:02,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2024-11-11 15:30:02,211 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 45 [2024-11-11 15:30:02,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:02,211 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2024-11-11 15:30:02,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 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) [2024-11-11 15:30:02,211 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2024-11-11 15:30:02,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-11 15:30:02,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:02,212 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:30:02,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 15:30:02,413 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 [2024-11-11 15:30:02,414 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:02,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:02,415 INFO L85 PathProgramCache]: Analyzing trace with hash 344212953, now seen corresponding path program 2 times [2024-11-11 15:30:02,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:02,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601285636] [2024-11-11 15:30:02,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:02,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:02,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 15:30:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:02,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 15:30:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:02,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 15:30:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-11 15:30:02,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:02,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601285636] [2024-11-11 15:30:02,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601285636] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:02,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572071876] [2024-11-11 15:30:02,493 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-11 15:30:02,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:02,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:02,496 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:02,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 15:30:02,573 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-11 15:30:02,573 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:30:02,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-11 15:30:02,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:30:02,642 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-11 15:30:02,643 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:30:02,713 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-11 15:30:02,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572071876] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:30:02,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:30:02,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2024-11-11 15:30:02,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502841270] [2024-11-11 15:30:02,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:30:02,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-11 15:30:02,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:02,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-11 15:30:02,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-11 15:30:02,716 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-11 15:30:02,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:02,761 INFO L93 Difference]: Finished difference Result 80 states and 98 transitions. [2024-11-11 15:30:02,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 15:30:02,762 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2024-11-11 15:30:02,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:02,762 INFO L225 Difference]: With dead ends: 80 [2024-11-11 15:30:02,762 INFO L226 Difference]: Without dead ends: 53 [2024-11-11 15:30:02,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-11 15:30:02,763 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 15:30:02,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 140 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 15:30:02,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-11 15:30:02,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2024-11-11 15:30:02,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 47 states have internal predecessors, (52), 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) [2024-11-11 15:30:02,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2024-11-11 15:30:02,768 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 63 [2024-11-11 15:30:02,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:02,769 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2024-11-11 15:30:02,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-11 15:30:02,769 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2024-11-11 15:30:02,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-11 15:30:02,770 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:02,770 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:30:02,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-11 15:30:02,973 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 [2024-11-11 15:30:02,974 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:02,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:02,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1309932629, now seen corresponding path program 3 times [2024-11-11 15:30:02,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:02,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043998784] [2024-11-11 15:30:02,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:02,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:03,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 15:30:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:03,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 15:30:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:03,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 15:30:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:03,206 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-11 15:30:03,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:03,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043998784] [2024-11-11 15:30:03,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043998784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:03,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028022544] [2024-11-11 15:30:03,207 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-11 15:30:03,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:03,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:03,211 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:03,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 15:30:03,280 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-11 15:30:03,280 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:30:03,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 15:30:03,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:30:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-11 15:30:03,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:30:03,379 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-11 15:30:03,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028022544] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:30:03,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:30:03,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 19 [2024-11-11 15:30:03,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034492204] [2024-11-11 15:30:03,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:30:03,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-11 15:30:03,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:03,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-11 15:30:03,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-11 15:30:03,382 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 15:30:03,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:03,457 INFO L93 Difference]: Finished difference Result 100 states and 123 transitions. [2024-11-11 15:30:03,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-11 15:30:03,459 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 77 [2024-11-11 15:30:03,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:03,460 INFO L225 Difference]: With dead ends: 100 [2024-11-11 15:30:03,460 INFO L226 Difference]: Without dead ends: 71 [2024-11-11 15:30:03,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-11 15:30:03,460 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 15:30:03,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 186 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 15:30:03,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-11 15:30:03,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2024-11-11 15:30:03,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 65 states have internal predecessors, (74), 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) [2024-11-11 15:30:03,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2024-11-11 15:30:03,467 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 77 [2024-11-11 15:30:03,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:03,467 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2024-11-11 15:30:03,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 15:30:03,468 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2024-11-11 15:30:03,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 15:30:03,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:03,469 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 11, 11, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:30:03,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-11 15:30:03,672 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 [2024-11-11 15:30:03,672 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:03,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:03,673 INFO L85 PathProgramCache]: Analyzing trace with hash -906758027, now seen corresponding path program 4 times [2024-11-11 15:30:03,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:03,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096721002] [2024-11-11 15:30:03,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:03,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:03,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 15:30:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:03,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 15:30:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:03,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 15:30:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:03,965 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-11 15:30:03,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:03,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096721002] [2024-11-11 15:30:03,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096721002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:03,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030384269] [2024-11-11 15:30:03,965 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-11 15:30:03,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:03,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:03,967 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:03,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-11 15:30:04,080 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-11 15:30:04,080 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:30:04,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-11 15:30:04,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:30:04,117 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-11 15:30:04,118 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:30:04,336 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-11 15:30:04,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030384269] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:30:04,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:30:04,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2024-11-11 15:30:04,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510136244] [2024-11-11 15:30:04,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:30:04,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-11 15:30:04,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:04,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-11 15:30:04,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2024-11-11 15:30:04,339 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 27 states, 27 states have (on average 2.888888888888889) internal successors, (78), 27 states have internal predecessors, (78), 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) [2024-11-11 15:30:04,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:04,394 INFO L93 Difference]: Finished difference Result 141 states and 173 transitions. [2024-11-11 15:30:04,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-11 15:30:04,395 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.888888888888889) internal successors, (78), 27 states have internal predecessors, (78), 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 127 [2024-11-11 15:30:04,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:04,396 INFO L225 Difference]: With dead ends: 141 [2024-11-11 15:30:04,396 INFO L226 Difference]: Without dead ends: 96 [2024-11-11 15:30:04,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2024-11-11 15:30:04,397 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 15:30:04,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 78 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 15:30:04,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-11 15:30:04,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-11 15:30:04,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 91 states have (on average 1.098901098901099) internal successors, (100), 91 states have internal predecessors, (100), 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) [2024-11-11 15:30:04,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2024-11-11 15:30:04,403 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 127 [2024-11-11 15:30:04,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:04,403 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2024-11-11 15:30:04,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.888888888888889) internal successors, (78), 27 states have internal predecessors, (78), 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) [2024-11-11 15:30:04,404 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2024-11-11 15:30:04,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-11 15:30:04,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:04,405 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 18, 18, 18, 18, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:30:04,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-11 15:30:04,609 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 [2024-11-11 15:30:04,610 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:04,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:04,611 INFO L85 PathProgramCache]: Analyzing trace with hash -757608005, now seen corresponding path program 5 times [2024-11-11 15:30:04,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:04,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685198603] [2024-11-11 15:30:04,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:04,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:05,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 15:30:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:05,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 15:30:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:05,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 15:30:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:05,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-11 15:30:05,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:05,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685198603] [2024-11-11 15:30:05,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685198603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:05,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615530529] [2024-11-11 15:30:05,341 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-11 15:30:05,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:05,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:05,342 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:05,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-11 15:30:07,747 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-11-11 15:30:07,747 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:30:07,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-11 15:30:07,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:30:07,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 316 proven. 66 refuted. 0 times theorem prover too weak. 879 trivial. 0 not checked. [2024-11-11 15:30:07,877 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:30:08,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2024-11-11 15:30:08,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615530529] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:30:08,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:30:08,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 9, 9] total 41 [2024-11-11 15:30:08,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233255332] [2024-11-11 15:30:08,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:30:08,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-11 15:30:08,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:08,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-11 15:30:08,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=1170, Unknown=0, NotChecked=0, Total=1640 [2024-11-11 15:30:08,059 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand has 41 states, 41 states have (on average 3.268292682926829) internal successors, (134), 41 states have internal predecessors, (134), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 15:30:08,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:08,164 INFO L93 Difference]: Finished difference Result 176 states and 215 transitions. [2024-11-11 15:30:08,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-11 15:30:08,165 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.268292682926829) internal successors, (134), 41 states have internal predecessors, (134), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 153 [2024-11-11 15:30:08,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:08,166 INFO L225 Difference]: With dead ends: 176 [2024-11-11 15:30:08,166 INFO L226 Difference]: Without dead ends: 131 [2024-11-11 15:30:08,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=470, Invalid=1170, Unknown=0, NotChecked=0, Total=1640 [2024-11-11 15:30:08,167 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 50 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 15:30:08,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 203 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 15:30:08,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-11 15:30:08,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2024-11-11 15:30:08,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 125 states have (on average 1.136) internal successors, (142), 125 states have internal predecessors, (142), 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) [2024-11-11 15:30:08,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 148 transitions. [2024-11-11 15:30:08,174 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 148 transitions. Word has length 153 [2024-11-11 15:30:08,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:08,175 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 148 transitions. [2024-11-11 15:30:08,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.268292682926829) internal successors, (134), 41 states have internal predecessors, (134), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 15:30:08,175 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 148 transitions. [2024-11-11 15:30:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-11 15:30:08,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:08,177 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 42, 25, 25, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:30:08,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-11 15:30:08,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-11 15:30:08,378 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:08,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:08,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1992150769, now seen corresponding path program 6 times [2024-11-11 15:30:08,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:08,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901328330] [2024-11-11 15:30:08,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:08,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:09,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 15:30:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:09,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-11 15:30:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:09,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-11 15:30:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 4214 backedges. 0 proven. 625 refuted. 0 times theorem prover too weak. 3589 trivial. 0 not checked. [2024-11-11 15:30:09,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:09,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901328330] [2024-11-11 15:30:09,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901328330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:09,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425539563] [2024-11-11 15:30:09,257 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-11 15:30:09,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:09,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:09,258 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:09,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-11 15:30:09,393 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-11 15:30:09,393 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:30:09,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 15:30:09,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:30:09,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4214 backedges. 1634 proven. 4 refuted. 0 times theorem prover too weak. 2576 trivial. 0 not checked. [2024-11-11 15:30:09,446 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:30:09,509 INFO L134 CoverageAnalysis]: Checked inductivity of 4214 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4210 trivial. 0 not checked. [2024-11-11 15:30:09,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425539563] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:30:09,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:30:09,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 5, 5] total 34 [2024-11-11 15:30:09,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694337437] [2024-11-11 15:30:09,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:30:09,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-11 15:30:09,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:09,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-11 15:30:09,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=405, Invalid=717, Unknown=0, NotChecked=0, Total=1122 [2024-11-11 15:30:09,514 INFO L87 Difference]: Start difference. First operand 130 states and 148 transitions. Second operand has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 15:30:09,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:09,628 INFO L93 Difference]: Finished difference Result 218 states and 258 transitions. [2024-11-11 15:30:09,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-11 15:30:09,632 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 251 [2024-11-11 15:30:09,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:09,634 INFO L225 Difference]: With dead ends: 218 [2024-11-11 15:30:09,634 INFO L226 Difference]: Without dead ends: 141 [2024-11-11 15:30:09,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=405, Invalid=717, Unknown=0, NotChecked=0, Total=1122 [2024-11-11 15:30:09,635 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 15:30:09,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 162 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 15:30:09,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-11 15:30:09,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2024-11-11 15:30:09,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 135 states have (on average 1.125925925925926) internal successors, (152), 135 states have internal predecessors, (152), 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) [2024-11-11 15:30:09,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 158 transitions. [2024-11-11 15:30:09,645 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 158 transitions. Word has length 251 [2024-11-11 15:30:09,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:09,645 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 158 transitions. [2024-11-11 15:30:09,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 15:30:09,646 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 158 transitions. [2024-11-11 15:30:09,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-11 15:30:09,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:09,648 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 42, 26, 26, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:30:09,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-11 15:30:09,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-11 15:30:09,849 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:09,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:09,849 INFO L85 PathProgramCache]: Analyzing trace with hash 942883655, now seen corresponding path program 7 times [2024-11-11 15:30:09,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:09,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493391684] [2024-11-11 15:30:09,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:09,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:10,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 15:30:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:10,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 15:30:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:10,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-11 15:30:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4297 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 3621 trivial. 0 not checked. [2024-11-11 15:30:10,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:10,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493391684] [2024-11-11 15:30:10,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493391684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:10,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515776852] [2024-11-11 15:30:10,576 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-11 15:30:10,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:10,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:10,577 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:10,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-11 15:30:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:10,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-11 15:30:10,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:30:10,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4297 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 3621 trivial. 0 not checked. [2024-11-11 15:30:10,840 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:30:11,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4297 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 3621 trivial. 0 not checked. [2024-11-11 15:30:11,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515776852] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:30:11,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:30:11,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 43 [2024-11-11 15:30:11,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348575854] [2024-11-11 15:30:11,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:30:11,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-11 15:30:11,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:11,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-11 15:30:11,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2024-11-11 15:30:11,428 INFO L87 Difference]: Start difference. First operand 140 states and 158 transitions. Second operand has 43 states, 43 states have (on average 2.604651162790698) internal successors, (112), 43 states have internal predecessors, (112), 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) [2024-11-11 15:30:11,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:11,514 INFO L93 Difference]: Finished difference Result 253 states and 302 transitions. [2024-11-11 15:30:11,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-11 15:30:11,516 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.604651162790698) internal successors, (112), 43 states have internal predecessors, (112), 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 261 [2024-11-11 15:30:11,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:11,522 INFO L225 Difference]: With dead ends: 253 [2024-11-11 15:30:11,522 INFO L226 Difference]: Without dead ends: 168 [2024-11-11 15:30:11,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 500 SyntacticMatches, 14 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2024-11-11 15:30:11,523 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 15:30:11,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 203 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 15:30:11,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-11 15:30:11,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-11-11 15:30:11,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 163 states have (on average 1.1042944785276074) internal successors, (180), 163 states have internal predecessors, (180), 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) [2024-11-11 15:30:11,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 186 transitions. [2024-11-11 15:30:11,535 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 186 transitions. Word has length 261 [2024-11-11 15:30:11,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:11,535 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 186 transitions. [2024-11-11 15:30:11,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.604651162790698) internal successors, (112), 43 states have internal predecessors, (112), 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) [2024-11-11 15:30:11,535 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 186 transitions. [2024-11-11 15:30:11,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-11-11 15:30:11,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:11,537 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 42, 40, 40, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:30:11,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-11 15:30:11,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-11 15:30:11,738 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:11,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:11,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1486396395, now seen corresponding path program 8 times [2024-11-11 15:30:11,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:11,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343504954] [2024-11-11 15:30:11,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:11,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:12,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 15:30:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:12,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-11 15:30:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:12,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-11 15:30:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:12,251 INFO L134 CoverageAnalysis]: Checked inductivity of 5221 backedges. 0 proven. 2010 refuted. 0 times theorem prover too weak. 3211 trivial. 0 not checked. [2024-11-11 15:30:12,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:12,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343504954] [2024-11-11 15:30:12,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343504954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:12,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540873282] [2024-11-11 15:30:12,252 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-11 15:30:12,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:12,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:12,255 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:12,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-11 15:30:12,472 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-11 15:30:12,472 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:30:12,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-11 15:30:12,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:30:12,536 INFO L134 CoverageAnalysis]: Checked inductivity of 5221 backedges. 1628 proven. 378 refuted. 0 times theorem prover too weak. 3215 trivial. 0 not checked. [2024-11-11 15:30:12,536 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:30:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 5221 backedges. 0 proven. 2010 refuted. 0 times theorem prover too weak. 3211 trivial. 0 not checked. [2024-11-11 15:30:12,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540873282] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:30:12,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:30:12,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 32 [2024-11-11 15:30:12,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512975430] [2024-11-11 15:30:12,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:30:12,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-11 15:30:12,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:12,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-11 15:30:12,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2024-11-11 15:30:12,870 INFO L87 Difference]: Start difference. First operand 168 states and 186 transitions. Second operand has 32 states, 32 states have (on average 4.59375) internal successors, (147), 32 states have internal predecessors, (147), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 15:30:12,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:12,962 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2024-11-11 15:30:12,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-11 15:30:12,963 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.59375) internal successors, (147), 32 states have internal predecessors, (147), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 289 [2024-11-11 15:30:12,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:12,964 INFO L225 Difference]: With dead ends: 315 [2024-11-11 15:30:12,964 INFO L226 Difference]: Without dead ends: 232 [2024-11-11 15:30:12,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2024-11-11 15:30:12,965 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 116 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 15:30:12,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 131 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 15:30:12,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-11 15:30:12,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2024-11-11 15:30:12,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 227 states have (on average 1.145374449339207) internal successors, (260), 227 states have internal predecessors, (260), 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) [2024-11-11 15:30:12,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 266 transitions. [2024-11-11 15:30:12,971 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 266 transitions. Word has length 289 [2024-11-11 15:30:12,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:12,972 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 266 transitions. [2024-11-11 15:30:12,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.59375) internal successors, (147), 32 states have internal predecessors, (147), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 15:30:12,972 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 266 transitions. [2024-11-11 15:30:12,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-11 15:30:12,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:12,976 INFO L218 NwaCegarLoop]: trace histogram [90, 90, 90, 90, 40, 40, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:30:12,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-11 15:30:13,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-11 15:30:13,178 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:13,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:13,178 INFO L85 PathProgramCache]: Analyzing trace with hash -721735269, now seen corresponding path program 9 times [2024-11-11 15:30:13,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:13,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700947230] [2024-11-11 15:30:13,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:13,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:14,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 15:30:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:14,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-11 15:30:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:14,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-11-11 15:30:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:14,792 INFO L134 CoverageAnalysis]: Checked inductivity of 17941 backedges. 0 proven. 9098 refuted. 0 times theorem prover too weak. 8843 trivial. 0 not checked. [2024-11-11 15:30:14,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:14,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700947230] [2024-11-11 15:30:14,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700947230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:14,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150726114] [2024-11-11 15:30:14,793 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-11 15:30:14,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:14,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:14,794 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:14,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-11 15:30:15,034 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-11 15:30:15,034 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:30:15,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-11 15:30:15,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:30:15,192 INFO L134 CoverageAnalysis]: Checked inductivity of 17941 backedges. 7409 proven. 36 refuted. 0 times theorem prover too weak. 10496 trivial. 0 not checked. [2024-11-11 15:30:15,192 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:30:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 17941 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 17905 trivial. 0 not checked. [2024-11-11 15:30:15,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150726114] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:30:15,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:30:15,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 11, 9] total 49 [2024-11-11 15:30:15,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108074008] [2024-11-11 15:30:15,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:30:15,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-11 15:30:15,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:15,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-11 15:30:15,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=652, Invalid=1700, Unknown=0, NotChecked=0, Total=2352 [2024-11-11 15:30:15,382 INFO L87 Difference]: Start difference. First operand 232 states and 266 transitions. Second operand has 49 states, 49 states have (on average 3.7755102040816326) internal successors, (185), 49 states have internal predecessors, (185), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 15:30:15,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:15,544 INFO L93 Difference]: Finished difference Result 402 states and 482 transitions. [2024-11-11 15:30:15,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-11 15:30:15,544 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.7755102040816326) internal successors, (185), 49 states have internal predecessors, (185), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 481 [2024-11-11 15:30:15,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:15,546 INFO L225 Difference]: With dead ends: 402 [2024-11-11 15:30:15,546 INFO L226 Difference]: Without dead ends: 255 [2024-11-11 15:30:15,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 999 GetRequests, 952 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=652, Invalid=1700, Unknown=0, NotChecked=0, Total=2352 [2024-11-11 15:30:15,548 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 106 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 15:30:15,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 250 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 15:30:15,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-11 15:30:15,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 252. [2024-11-11 15:30:15,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.1376518218623481) internal successors, (281), 247 states have internal predecessors, (281), 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) [2024-11-11 15:30:15,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 287 transitions. [2024-11-11 15:30:15,554 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 287 transitions. Word has length 481 [2024-11-11 15:30:15,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:15,554 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 287 transitions. [2024-11-11 15:30:15,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.7755102040816326) internal successors, (185), 49 states have internal predecessors, (185), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 15:30:15,555 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 287 transitions. [2024-11-11 15:30:15,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2024-11-11 15:30:15,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:15,557 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 93, 40, 40, 14, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:30:15,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-11 15:30:15,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-11 15:30:15,762 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:15,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:15,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2070800806, now seen corresponding path program 10 times [2024-11-11 15:30:15,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:15,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6785236] [2024-11-11 15:30:15,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:15,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:16,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 15:30:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:17,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-11 15:30:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:17,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-11-11 15:30:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:17,060 INFO L134 CoverageAnalysis]: Checked inductivity of 19202 backedges. 0 proven. 9711 refuted. 0 times theorem prover too weak. 9491 trivial. 0 not checked. [2024-11-11 15:30:17,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:17,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6785236] [2024-11-11 15:30:17,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6785236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:17,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219659554] [2024-11-11 15:30:17,061 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-11 15:30:17,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:17,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:17,063 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:17,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-11 15:30:17,418 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-11 15:30:17,419 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:30:17,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 1698 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-11 15:30:17,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:30:17,605 INFO L134 CoverageAnalysis]: Checked inductivity of 19202 backedges. 7816 proven. 1891 refuted. 0 times theorem prover too weak. 9495 trivial. 0 not checked. [2024-11-11 15:30:17,605 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:30:18,324 INFO L134 CoverageAnalysis]: Checked inductivity of 19202 backedges. 0 proven. 9711 refuted. 0 times theorem prover too weak. 9491 trivial. 0 not checked. [2024-11-11 15:30:18,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219659554] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:30:18,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:30:18,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 42 [2024-11-11 15:30:18,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613995332] [2024-11-11 15:30:18,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:30:18,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-11 15:30:18,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:30:18,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-11 15:30:18,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2024-11-11 15:30:18,332 INFO L87 Difference]: Start difference. First operand 252 states and 287 transitions. Second operand has 42 states, 42 states have (on average 4.5476190476190474) internal successors, (191), 42 states have internal predecessors, (191), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 15:30:18,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:30:18,530 INFO L93 Difference]: Finished difference Result 455 states and 544 transitions. [2024-11-11 15:30:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-11 15:30:18,531 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 4.5476190476190474) internal successors, (191), 42 states have internal predecessors, (191), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 509 [2024-11-11 15:30:18,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:30:18,532 INFO L225 Difference]: With dead ends: 455 [2024-11-11 15:30:18,532 INFO L226 Difference]: Without dead ends: 288 [2024-11-11 15:30:18,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1056 GetRequests, 992 SyntacticMatches, 24 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2024-11-11 15:30:18,534 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 138 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 15:30:18,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 266 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 15:30:18,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-11 15:30:18,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-11-11 15:30:18,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.1519434628975265) internal successors, (326), 283 states have internal predecessors, (326), 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) [2024-11-11 15:30:18,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 332 transitions. [2024-11-11 15:30:18,542 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 332 transitions. Word has length 509 [2024-11-11 15:30:18,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:30:18,542 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 332 transitions. [2024-11-11 15:30:18,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 4.5476190476190474) internal successors, (191), 42 states have internal predecessors, (191), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 15:30:18,543 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 332 transitions. [2024-11-11 15:30:18,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2024-11-11 15:30:18,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:30:18,545 INFO L218 NwaCegarLoop]: trace histogram [120, 120, 120, 120, 40, 40, 14, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:30:18,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-11 15:30:18,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-11 15:30:18,750 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:30:18,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:30:18,750 INFO L85 PathProgramCache]: Analyzing trace with hash 511111449, now seen corresponding path program 11 times [2024-11-11 15:30:18,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:30:18,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704846718] [2024-11-11 15:30:18,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:30:18,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:30:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:19,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 15:30:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:19,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-11-11 15:30:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:19,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2024-11-11 15:30:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:30:19,472 INFO L134 CoverageAnalysis]: Checked inductivity of 30731 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 30535 trivial. 0 not checked. [2024-11-11 15:30:19,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:30:19,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704846718] [2024-11-11 15:30:19,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704846718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:30:19,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625615445] [2024-11-11 15:30:19,473 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-11 15:30:19,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:30:19,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:30:19,476 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:30:19,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process