./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/Fibonacci03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/Fibonacci03.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be0a584ba9648c80e7a0523ff51ba530f1926c55cecd3c62f2cee05fbbff42e3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 20:56:47,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 20:56:47,790 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 20:56:47,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 20:56:47,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 20:56:47,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 20:56:47,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 20:56:47,814 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 20:56:47,815 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 20:56:47,815 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 20:56:47,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 20:56:47,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 20:56:47,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 20:56:47,817 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 20:56:47,818 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 20:56:47,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 20:56:47,818 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 20:56:47,819 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 20:56:47,819 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 20:56:47,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 20:56:47,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 20:56:47,823 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 20:56:47,823 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 20:56:47,824 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 20:56:47,824 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 20:56:47,824 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 20:56:47,824 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 20:56:47,825 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 20:56:47,825 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 20:56:47,825 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 20:56:47,825 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 20:56:47,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 20:56:47,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:56:47,826 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 20:56:47,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 20:56:47,827 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 20:56:47,827 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 20:56:47,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 20:56:47,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 20:56:47,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 20:56:47,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 20:56:47,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 20:56:47,829 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be0a584ba9648c80e7a0523ff51ba530f1926c55cecd3c62f2cee05fbbff42e3 [2024-11-11 20:56:48,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 20:56:48,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 20:56:48,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 20:56:48,132 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 20:56:48,132 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 20:56:48,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Fibonacci03.c [2024-11-11 20:56:49,638 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 20:56:49,832 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 20:56:49,832 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci03.c [2024-11-11 20:56:49,841 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ff3b9204/0246e6c4a73b4a54ba8cf703e1a5ad69/FLAG70f4d7f4b [2024-11-11 20:56:50,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ff3b9204/0246e6c4a73b4a54ba8cf703e1a5ad69 [2024-11-11 20:56:50,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 20:56:50,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 20:56:50,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 20:56:50,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 20:56:50,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 20:56:50,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21962752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50, skipping insertion in model container [2024-11-11 20:56:50,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,257 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 20:56:50,434 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/recursive/Fibonacci03.c[788,801] [2024-11-11 20:56:50,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:56:50,453 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 20:56:50,469 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/recursive/Fibonacci03.c[788,801] [2024-11-11 20:56:50,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:56:50,488 INFO L204 MainTranslator]: Completed translation [2024-11-11 20:56:50,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50 WrapperNode [2024-11-11 20:56:50,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 20:56:50,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 20:56:50,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 20:56:50,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 20:56:50,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,525 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2024-11-11 20:56:50,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 20:56:50,526 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 20:56:50,526 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 20:56:50,526 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 20:56:50,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,539 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,550 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 20:56:50,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 20:56:50,559 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 20:56:50,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 20:56:50,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 20:56:50,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50" (1/1) ... [2024-11-11 20:56:50,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:56:50,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:56:50,593 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 20:56:50,596 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 20:56:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2024-11-11 20:56:50,636 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2024-11-11 20:56:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 20:56:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 20:56:50,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 20:56:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 20:56:50,688 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 20:56:50,689 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 20:56:50,806 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-11 20:56:50,806 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 20:56:50,820 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 20:56:50,820 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-11 20:56:50,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:56:50 BoogieIcfgContainer [2024-11-11 20:56:50,821 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 20:56:50,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 20:56:50,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 20:56:50,843 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 20:56:50,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 08:56:50" (1/3) ... [2024-11-11 20:56:50,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a274640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:56:50, skipping insertion in model container [2024-11-11 20:56:50,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:56:50" (2/3) ... [2024-11-11 20:56:50,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a274640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:56:50, skipping insertion in model container [2024-11-11 20:56:50,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:56:50" (3/3) ... [2024-11-11 20:56:50,847 INFO L112 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2024-11-11 20:56:50,863 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 20:56:50,863 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 20:56:50,921 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 20:56:50,927 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;@4d3bbc94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 20:56:50,927 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 20:56:50,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 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 20:56:50,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-11 20:56:50,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:56:50,937 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:56:50,937 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:56:50,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:56:50,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1939714822, now seen corresponding path program 1 times [2024-11-11 20:56:50,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:56:50,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487476370] [2024-11-11 20:56:50,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:56:50,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:56:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:51,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:56:51,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:56:51,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487476370] [2024-11-11 20:56:51,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487476370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:56:51,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:56:51,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 20:56:51,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042126876] [2024-11-11 20:56:51,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:56:51,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:56:51,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:56:51,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:56:51,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 20:56:51,351 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 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 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 20:56:51,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:56:51,444 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2024-11-11 20:56:51,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:56:51,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-11 20:56:51,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:56:51,456 INFO L225 Difference]: With dead ends: 31 [2024-11-11 20:56:51,456 INFO L226 Difference]: Without dead ends: 21 [2024-11-11 20:56:51,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 20:56:51,465 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:56:51,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 51 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:56:51,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-11 20:56:51,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2024-11-11 20:56:51,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-11 20:56:51,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-11-11 20:56:51,510 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 11 [2024-11-11 20:56:51,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:56:51,511 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-11 20:56:51,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 20:56:51,511 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-11 20:56:51,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-11 20:56:51,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:56:51,513 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:56:51,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 20:56:51,513 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:56:51,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:56:51,514 INFO L85 PathProgramCache]: Analyzing trace with hash 692912656, now seen corresponding path program 1 times [2024-11-11 20:56:51,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:56:51,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008147598] [2024-11-11 20:56:51,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:56:51,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:56:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:51,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:51,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:56:51,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:56:51,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008147598] [2024-11-11 20:56:51,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008147598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:56:51,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:56:51,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 20:56:51,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882709609] [2024-11-11 20:56:51,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:56:51,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:56:51,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:56:51,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:56:51,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 20:56:51,654 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 20:56:51,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:56:51,718 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2024-11-11 20:56:51,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:56:51,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-11 20:56:51,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:56:51,721 INFO L225 Difference]: With dead ends: 25 [2024-11-11 20:56:51,721 INFO L226 Difference]: Without dead ends: 21 [2024-11-11 20:56:51,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 20:56:51,723 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:56:51,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 39 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:56:51,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-11 20:56:51,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2024-11-11 20:56:51,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-11 20:56:51,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-11-11 20:56:51,730 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2024-11-11 20:56:51,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:56:51,731 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-11 20:56:51,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-11 20:56:51,732 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-11 20:56:51,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-11 20:56:51,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:56:51,733 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:56:51,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 20:56:51,734 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:56:51,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:56:51,735 INFO L85 PathProgramCache]: Analyzing trace with hash 453332055, now seen corresponding path program 1 times [2024-11-11 20:56:51,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:56:51,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772881602] [2024-11-11 20:56:51,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:56:51,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:56:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:51,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:51,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:51,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:56:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-11 20:56:51,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:56:51,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772881602] [2024-11-11 20:56:51,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772881602] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:56:51,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149523531] [2024-11-11 20:56:51,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:56:51,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:56:51,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:56:51,976 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 20:56:51,979 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 20:56:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:52,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-11 20:56:52,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:56:52,143 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-11 20:56:52,144 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 20:56:52,396 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-11 20:56:52,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149523531] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 20:56:52,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 20:56:52,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 13 [2024-11-11 20:56:52,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582589713] [2024-11-11 20:56:52,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 20:56:52,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-11 20:56:52,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:56:52,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-11 20:56:52,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:56:52,400 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-11 20:56:52,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:56:52,623 INFO L93 Difference]: Finished difference Result 47 states and 70 transitions. [2024-11-11 20:56:52,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 20:56:52,624 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) Word has length 24 [2024-11-11 20:56:52,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:56:52,625 INFO L225 Difference]: With dead ends: 47 [2024-11-11 20:56:52,625 INFO L226 Difference]: Without dead ends: 30 [2024-11-11 20:56:52,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-11 20:56:52,627 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 23 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:56:52,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 90 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:56:52,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-11 20:56:52,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-11 20:56:52,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-11 20:56:52,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 42 transitions. [2024-11-11 20:56:52,642 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 42 transitions. Word has length 24 [2024-11-11 20:56:52,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:56:52,643 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 42 transitions. [2024-11-11 20:56:52,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-11 20:56:52,643 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2024-11-11 20:56:52,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 20:56:52,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:56:52,648 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:56:52,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 20:56:52,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:56:52,849 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:56:52,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:56:52,850 INFO L85 PathProgramCache]: Analyzing trace with hash -872442578, now seen corresponding path program 1 times [2024-11-11 20:56:52,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:56:52,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224109442] [2024-11-11 20:56:52,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:56:52,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:56:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:52,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:53,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:53,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:53,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:53,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:56:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:53,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:53,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:53,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:53,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:53,321 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 44 proven. 63 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-11 20:56:53,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:56:53,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224109442] [2024-11-11 20:56:53,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224109442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:56:53,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41032106] [2024-11-11 20:56:53,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:56:53,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:56:53,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:56:53,331 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 20:56:53,336 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 20:56:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:53,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-11 20:56:53,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:56:53,500 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 16 proven. 75 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-11 20:56:53,502 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 20:56:53,955 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-11 20:56:53,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41032106] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 20:56:53,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 20:56:53,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 9] total 18 [2024-11-11 20:56:53,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757115241] [2024-11-11 20:56:53,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 20:56:53,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-11 20:56:53,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:56:53,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-11 20:56:53,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-11 20:56:53,959 INFO L87 Difference]: Start difference. First operand 30 states and 42 transitions. Second operand has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-11 20:56:54,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:56:54,225 INFO L93 Difference]: Finished difference Result 74 states and 124 transitions. [2024-11-11 20:56:54,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 20:56:54,226 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) Word has length 66 [2024-11-11 20:56:54,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:56:54,229 INFO L225 Difference]: With dead ends: 74 [2024-11-11 20:56:54,231 INFO L226 Difference]: Without dead ends: 46 [2024-11-11 20:56:54,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 141 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2024-11-11 20:56:54,235 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 42 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:56:54,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 97 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:56:54,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-11 20:56:54,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2024-11-11 20:56:54,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 30 states have internal predecessors, (34), 7 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (25), 9 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-11 20:56:54,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 66 transitions. [2024-11-11 20:56:54,249 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 66 transitions. Word has length 66 [2024-11-11 20:56:54,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:56:54,249 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 66 transitions. [2024-11-11 20:56:54,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-11 20:56:54,250 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 66 transitions. [2024-11-11 20:56:54,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 20:56:54,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:56:54,254 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 13, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:56:54,271 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 20:56:54,458 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,SelfDestructingSolverStorable3 [2024-11-11 20:56:54,459 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:56:54,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:56:54,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1025995309, now seen corresponding path program 2 times [2024-11-11 20:56:54,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:56:54,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290119323] [2024-11-11 20:56:54,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:56:54,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:56:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:54,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:54,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:54,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:54,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:54,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:54,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:54,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:56:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:54,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:56:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:54,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:54,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:54,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 20:56:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:54,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:55,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:55,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:55,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:55,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:56:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:55,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:56:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:55,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:55,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:55,060 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 223 proven. 189 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2024-11-11 20:56:55,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:56:55,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290119323] [2024-11-11 20:56:55,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290119323] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:56:55,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761273135] [2024-11-11 20:56:55,061 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-11 20:56:55,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:56:55,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:56:55,063 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 20:56:55,065 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 20:56:55,142 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-11 20:56:55,142 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 20:56:55,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-11 20:56:55,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:56:55,282 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 52 proven. 316 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2024-11-11 20:56:55,282 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 20:56:56,319 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 52 proven. 342 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-11 20:56:56,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761273135] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 20:56:56,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 20:56:56,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 13] total 23 [2024-11-11 20:56:56,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688606568] [2024-11-11 20:56:56,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 20:56:56,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-11 20:56:56,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:56:56,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-11 20:56:56,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2024-11-11 20:56:56,323 INFO L87 Difference]: Start difference. First operand 43 states and 66 transitions. Second operand has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 15 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (26), 13 states have call predecessors, (26), 15 states have call successors, (26) [2024-11-11 20:56:56,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:56:56,766 INFO L93 Difference]: Finished difference Result 114 states and 223 transitions. [2024-11-11 20:56:56,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-11 20:56:56,767 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 15 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (26), 13 states have call predecessors, (26), 15 states have call successors, (26) Word has length 132 [2024-11-11 20:56:56,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:56:56,769 INFO L225 Difference]: With dead ends: 114 [2024-11-11 20:56:56,769 INFO L226 Difference]: Without dead ends: 73 [2024-11-11 20:56:56,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 294 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=438, Invalid=1122, Unknown=0, NotChecked=0, Total=1560 [2024-11-11 20:56:56,772 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 74 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:56:56,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 137 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 20:56:56,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-11 20:56:56,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 63. [2024-11-11 20:56:56,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 43 states have internal predecessors, (52), 11 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (37), 13 states have call predecessors, (37), 11 states have call successors, (37) [2024-11-11 20:56:56,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 100 transitions. [2024-11-11 20:56:56,794 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 100 transitions. Word has length 132 [2024-11-11 20:56:56,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:56:56,795 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 100 transitions. [2024-11-11 20:56:56,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 15 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (26), 13 states have call predecessors, (26), 15 states have call successors, (26) [2024-11-11 20:56:56,796 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 100 transitions. [2024-11-11 20:56:56,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-11 20:56:56,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:56:56,810 INFO L218 NwaCegarLoop]: trace histogram [67, 67, 54, 33, 33, 33, 33, 33, 33, 33, 21, 13, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:56:56,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 20:56:57,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:56:57,011 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:56:57,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:56:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash 534519633, now seen corresponding path program 3 times [2024-11-11 20:56:57,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:56:57,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281471943] [2024-11-11 20:56:57,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:56:57,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:56:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:57,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:57,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:56:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:56:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:56:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:56:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:56:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:56:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:56:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-11 20:56:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:56:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:56:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:56:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:56:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:58,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:56:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:56:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:56:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:56:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:56:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:56:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:56:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:56:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:56:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:56:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:56:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 12387 backedges. 924 proven. 2486 refuted. 0 times theorem prover too weak. 8977 trivial. 0 not checked. [2024-11-11 20:56:59,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:56:59,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281471943] [2024-11-11 20:56:59,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281471943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:56:59,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877676319] [2024-11-11 20:56:59,124 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-11 20:56:59,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:56:59,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:56:59,126 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 20:56:59,128 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 20:56:59,312 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2024-11-11 20:56:59,312 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 20:56:59,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-11 20:56:59,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:56:59,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12387 backedges. 254 proven. 2070 refuted. 0 times theorem prover too weak. 10063 trivial. 0 not checked. [2024-11-11 20:56:59,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 20:57:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 12387 backedges. 254 proven. 2127 refuted. 0 times theorem prover too weak. 10006 trivial. 0 not checked. [2024-11-11 20:57:01,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877676319] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 20:57:01,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 20:57:01,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 11, 17] total 35 [2024-11-11 20:57:01,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996218051] [2024-11-11 20:57:01,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 20:57:01,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-11 20:57:01,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:57:01,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-11 20:57:01,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=909, Unknown=0, NotChecked=0, Total=1190 [2024-11-11 20:57:01,989 INFO L87 Difference]: Start difference. First operand 63 states and 100 transitions. Second operand has 35 states, 35 states have (on average 2.5428571428571427) internal successors, (89), 35 states have internal predecessors, (89), 25 states have call successors, (29), 1 states have call predecessors, (29), 14 states have return successors, (44), 25 states have call predecessors, (44), 25 states have call successors, (44) [2024-11-11 20:57:02,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:57:02,622 INFO L93 Difference]: Finished difference Result 187 states and 400 transitions. [2024-11-11 20:57:02,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-11 20:57:02,623 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5428571428571427) internal successors, (89), 35 states have internal predecessors, (89), 25 states have call successors, (29), 1 states have call predecessors, (29), 14 states have return successors, (44), 25 states have call predecessors, (44), 25 states have call successors, (44) Word has length 461 [2024-11-11 20:57:02,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:57:02,626 INFO L225 Difference]: With dead ends: 187 [2024-11-11 20:57:02,626 INFO L226 Difference]: Without dead ends: 126 [2024-11-11 20:57:02,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1039 SyntacticMatches, 6 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=830, Invalid=2592, Unknown=0, NotChecked=0, Total=3422 [2024-11-11 20:57:02,630 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 169 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 20:57:02,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 209 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 20:57:02,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-11 20:57:02,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 108. [2024-11-11 20:57:02,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 77 states have (on average 1.1168831168831168) internal successors, (86), 74 states have internal predecessors, (86), 20 states have call successors, (20), 15 states have call predecessors, (20), 10 states have return successors, (51), 18 states have call predecessors, (51), 20 states have call successors, (51) [2024-11-11 20:57:02,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 157 transitions. [2024-11-11 20:57:02,646 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 157 transitions. Word has length 461 [2024-11-11 20:57:02,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:57:02,647 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 157 transitions. [2024-11-11 20:57:02,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.5428571428571427) internal successors, (89), 35 states have internal predecessors, (89), 25 states have call successors, (29), 1 states have call predecessors, (29), 14 states have return successors, (44), 25 states have call predecessors, (44), 25 states have call successors, (44) [2024-11-11 20:57:02,648 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2024-11-11 20:57:02,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 748 [2024-11-11 20:57:02,661 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:57:02,662 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 88, 54, 54, 54, 54, 54, 54, 54, 34, 21, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:57:02,680 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 20:57:02,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:57:02,862 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:57:02,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:57:02,863 INFO L85 PathProgramCache]: Analyzing trace with hash -425340118, now seen corresponding path program 4 times [2024-11-11 20:57:02,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:57:02,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593339464] [2024-11-11 20:57:02,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:57:02,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:57:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:09,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:13,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:14,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:57:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:57:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:57:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:57:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:15,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:57:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:57:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:57:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-11 20:57:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:57:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:57:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:57:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:57:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-11-11 20:57:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:57:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:57:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:57:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:57:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:16,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:57:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:57:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:57:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2024-11-11 20:57:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:57:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:57:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:57:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:57:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:57:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:17,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:57:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:57:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-11 20:57:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:57:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:57:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:57:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 20:57:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:57:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:57:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:57:18,266 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2024-11-11 20:57:18,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:57:18,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593339464] [2024-11-11 20:57:18,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593339464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:57:18,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494242954] [2024-11-11 20:57:18,266 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-11 20:57:18,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:57:18,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:57:18,270 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 20:57:18,272 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 20:57:18,537 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-11 20:57:18,537 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 20:57:18,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 1677 conjuncts, 220 conjuncts are in the unsatisfiable core [2024-11-11 20:57:18,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:57:19,272 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2024-11-11 20:57:19,273 INFO L312 TraceCheckSpWp]: Computing backward predicates...