./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/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.dd.update-z3-fca748b-m [2024-11-19 22:09:06,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:09:06,114 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:09:06,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:09:06,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:09:06,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:09:06,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:09:06,145 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:09:06,145 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:09:06,145 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:09:06,145 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:09:06,146 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:09:06,146 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:09:06,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:09:06,146 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:09:06,147 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:09:06,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:09:06,147 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:09:06,147 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:09:06,147 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:09:06,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:09:06,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:09:06,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:09:06,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:09:06,152 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:09:06,152 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:09:06,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:09:06,153 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:09:06,153 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:09:06,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:09:06,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:09:06,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:09:06,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:09:06,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:09:06,154 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:09:06,154 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:09:06,154 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:09:06,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:09:06,154 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:09:06,154 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:09:06,154 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:09:06,155 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:09:06,155 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be0a584ba9648c80e7a0523ff51ba530f1926c55cecd3c62f2cee05fbbff42e3 [2024-11-19 22:09:06,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:09:06,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:09:06,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:09:06,377 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:09:06,377 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:09:06,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci03.c [2024-11-19 22:09:07,586 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:09:07,713 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:09:07,714 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci03.c [2024-11-19 22:09:07,722 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/123d77d26/921c32d80fec4ab6bc36988fac2d22e2/FLAGba2aefc61 [2024-11-19 22:09:07,735 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/123d77d26/921c32d80fec4ab6bc36988fac2d22e2 [2024-11-19 22:09:07,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:09:07,739 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:09:07,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:09:07,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:09:07,745 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:09:07,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@316d5616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07, skipping insertion in model container [2024-11-19 22:09:07,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,761 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:09:07,893 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] [2024-11-19 22:09:07,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:09:07,903 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:09:07,912 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] [2024-11-19 22:09:07,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:09:07,925 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:09:07,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07 WrapperNode [2024-11-19 22:09:07,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:09:07,926 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:09:07,927 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:09:07,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:09:07,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,949 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2024-11-19 22:09:07,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:09:07,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:09:07,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:09:07,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:09:07,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,965 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]. [2024-11-19 22:09:07,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,971 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:09:07,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:09:07,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:09:07,974 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:09:07,975 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07" (1/1) ... [2024-11-19 22:09:07,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:09:07,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:09:08,011 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) [2024-11-19 22:09:08,014 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 [2024-11-19 22:09:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2024-11-19 22:09:08,051 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2024-11-19 22:09:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:09:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:09:08,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:09:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:09:08,102 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:09:08,104 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:09:08,204 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-19 22:09:08,204 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:09:08,213 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:09:08,213 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 22:09:08,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:09:08 BoogieIcfgContainer [2024-11-19 22:09:08,214 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:09:08,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:09:08,215 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:09:08,218 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:09:08,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:09:07" (1/3) ... [2024-11-19 22:09:08,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20df45e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:09:08, skipping insertion in model container [2024-11-19 22:09:08,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:07" (2/3) ... [2024-11-19 22:09:08,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20df45e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:09:08, skipping insertion in model container [2024-11-19 22:09:08,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:09:08" (3/3) ... [2024-11-19 22:09:08,220 INFO L112 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2024-11-19 22:09:08,232 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:09:08,232 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:09:08,273 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:09:08,277 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;@6a52776, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:09:08,277 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:09:08,280 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) [2024-11-19 22:09:08,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-19 22:09:08,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:09:08,285 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:09:08,286 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:09:08,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:09:08,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1939714822, now seen corresponding path program 1 times [2024-11-19 22:09:08,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:09:08,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579330322] [2024-11-19 22:09:08,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:09:08,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:09:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:08,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:08,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:09:08,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:09:08,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579330322] [2024-11-19 22:09:08,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579330322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:09:08,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:09:08,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:09:08,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425337075] [2024-11-19 22:09:08,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:09:08,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:09:08,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:09:08,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:09:08,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:09:08,535 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) [2024-11-19 22:09:08,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:09:08,618 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2024-11-19 22:09:08,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:09:08,621 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 [2024-11-19 22:09:08,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:09:08,627 INFO L225 Difference]: With dead ends: 31 [2024-11-19 22:09:08,627 INFO L226 Difference]: Without dead ends: 21 [2024-11-19 22:09:08,630 INFO L431 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 [2024-11-19 22:09:08,633 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2024-11-19 22:09:08,634 INFO L433 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] [2024-11-19 22:09:08,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-19 22:09:08,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2024-11-19 22:09:08,666 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) [2024-11-19 22:09:08,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-11-19 22:09:08,668 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 11 [2024-11-19 22:09:08,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:09:08,668 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-19 22:09:08,668 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) [2024-11-19 22:09:08,668 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-19 22:09:08,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-19 22:09:08,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:09:08,670 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:09:08,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 22:09:08,671 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:09:08,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:09:08,673 INFO L85 PathProgramCache]: Analyzing trace with hash 692912656, now seen corresponding path program 1 times [2024-11-19 22:09:08,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:09:08,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197914097] [2024-11-19 22:09:08,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:09:08,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:09:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:08,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:08,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:09:08,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:09:08,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197914097] [2024-11-19 22:09:08,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197914097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:09:08,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:09:08,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:09:08,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336846653] [2024-11-19 22:09:08,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:09:08,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:09:08,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:09:08,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:09:08,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:09:08,822 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) [2024-11-19 22:09:08,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:09:08,870 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2024-11-19 22:09:08,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:09:08,871 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 [2024-11-19 22:09:08,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:09:08,875 INFO L225 Difference]: With dead ends: 25 [2024-11-19 22:09:08,875 INFO L226 Difference]: Without dead ends: 21 [2024-11-19 22:09:08,875 INFO L431 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 [2024-11-19 22:09:08,876 INFO L432 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:09:08,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 39 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:09:08,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-19 22:09:08,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2024-11-19 22:09:08,884 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) [2024-11-19 22:09:08,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-11-19 22:09:08,885 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2024-11-19 22:09:08,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:09:08,885 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-19 22:09:08,885 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) [2024-11-19 22:09:08,885 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-19 22:09:08,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-19 22:09:08,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:09:08,886 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:09:08,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 22:09:08,886 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:09:08,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:09:08,888 INFO L85 PathProgramCache]: Analyzing trace with hash 453332055, now seen corresponding path program 1 times [2024-11-19 22:09:08,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:09:08,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837754583] [2024-11-19 22:09:08,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:09:08,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:09:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:08,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:09,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:09,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 22:09:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 22:09:09,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:09:09,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837754583] [2024-11-19 22:09:09,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837754583] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:09:09,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632124420] [2024-11-19 22:09:09,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:09:09,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:09:09,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:09:09,056 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) [2024-11-19 22:09:09,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 22:09:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:09,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 22:09:09,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:09:09,179 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 22:09:09,179 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:09:09,369 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 22:09:09,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632124420] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:09:09,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:09:09,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 13 [2024-11-19 22:09:09,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423703858] [2024-11-19 22:09:09,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:09:09,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 22:09:09,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:09:09,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 22:09:09,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:09:09,371 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) [2024-11-19 22:09:09,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:09:09,525 INFO L93 Difference]: Finished difference Result 47 states and 70 transitions. [2024-11-19 22:09:09,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 22:09:09,526 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 [2024-11-19 22:09:09,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:09:09,527 INFO L225 Difference]: With dead ends: 47 [2024-11-19 22:09:09,527 INFO L226 Difference]: Without dead ends: 30 [2024-11-19 22:09:09,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-19 22:09:09,529 INFO L432 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 [2024-11-19 22:09:09,529 INFO L433 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] [2024-11-19 22:09:09,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-19 22:09:09,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-19 22:09:09,539 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) [2024-11-19 22:09:09,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 42 transitions. [2024-11-19 22:09:09,540 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 42 transitions. Word has length 24 [2024-11-19 22:09:09,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:09:09,540 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 42 transitions. [2024-11-19 22:09:09,541 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) [2024-11-19 22:09:09,542 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2024-11-19 22:09:09,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-19 22:09:09,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:09:09,544 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:09:09,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 22:09:09,745 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 [2024-11-19 22:09:09,750 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:09:09,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:09:09,750 INFO L85 PathProgramCache]: Analyzing trace with hash -872442578, now seen corresponding path program 1 times [2024-11-19 22:09:09,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:09:09,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95538807] [2024-11-19 22:09:09,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:09:09,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:09:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:09,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:09,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:09,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:09,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:09,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:09,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:09,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:10,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:10,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:10,009 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 44 proven. 63 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-19 22:09:10,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:09:10,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95538807] [2024-11-19 22:09:10,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95538807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:09:10,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993794510] [2024-11-19 22:09:10,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:09:10,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:09:10,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:09:10,015 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) [2024-11-19 22:09:10,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 22:09:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:10,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 22:09:10,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:09:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 16 proven. 75 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-19 22:09:10,136 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:09:10,460 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-19 22:09:10,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993794510] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:09:10,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:09:10,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 9] total 18 [2024-11-19 22:09:10,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162776359] [2024-11-19 22:09:10,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:09:10,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 22:09:10,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:09:10,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 22:09:10,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-19 22:09:10,462 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) [2024-11-19 22:09:10,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:09:10,671 INFO L93 Difference]: Finished difference Result 74 states and 124 transitions. [2024-11-19 22:09:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 22:09:10,672 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 [2024-11-19 22:09:10,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:09:10,674 INFO L225 Difference]: With dead ends: 74 [2024-11-19 22:09:10,674 INFO L226 Difference]: Without dead ends: 46 [2024-11-19 22:09:10,675 INFO L431 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 [2024-11-19 22:09:10,676 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 42 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:09:10,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 97 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:09:10,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-19 22:09:10,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2024-11-19 22:09:10,688 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) [2024-11-19 22:09:10,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 66 transitions. [2024-11-19 22:09:10,689 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 66 transitions. Word has length 66 [2024-11-19 22:09:10,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:09:10,690 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 66 transitions. [2024-11-19 22:09:10,690 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) [2024-11-19 22:09:10,691 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 66 transitions. [2024-11-19 22:09:10,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-19 22:09:10,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:09:10,696 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 13, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:09:10,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 22:09:10,897 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 [2024-11-19 22:09:10,898 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:09:10,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:09:10,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1025995309, now seen corresponding path program 2 times [2024-11-19 22:09:10,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:09:10,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523530196] [2024-11-19 22:09:10,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:09:10,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:09:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 22:09:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 22:09:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 22:09:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:11,358 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 223 proven. 189 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2024-11-19 22:09:11,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:09:11,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523530196] [2024-11-19 22:09:11,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523530196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:09:11,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439266911] [2024-11-19 22:09:11,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 22:09:11,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:09:11,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:09:11,360 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) [2024-11-19 22:09:11,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 22:09:11,413 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 22:09:11,413 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 22:09:11,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 22:09:11,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:09:11,526 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 52 proven. 316 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2024-11-19 22:09:11,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:09:12,306 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 52 proven. 342 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-19 22:09:12,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439266911] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:09:12,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:09:12,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 13] total 23 [2024-11-19 22:09:12,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561797151] [2024-11-19 22:09:12,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:09:12,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 22:09:12,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:09:12,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 22:09:12,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2024-11-19 22:09:12,310 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) [2024-11-19 22:09:12,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:09:12,643 INFO L93 Difference]: Finished difference Result 114 states and 223 transitions. [2024-11-19 22:09:12,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-19 22:09:12,643 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 [2024-11-19 22:09:12,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:09:12,645 INFO L225 Difference]: With dead ends: 114 [2024-11-19 22:09:12,645 INFO L226 Difference]: Without dead ends: 73 [2024-11-19 22:09:12,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 294 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=438, Invalid=1122, Unknown=0, NotChecked=0, Total=1560 [2024-11-19 22:09:12,648 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 74 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:09:12,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 137 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:09:12,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-19 22:09:12,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 63. [2024-11-19 22:09:12,658 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) [2024-11-19 22:09:12,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 100 transitions. [2024-11-19 22:09:12,660 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 100 transitions. Word has length 132 [2024-11-19 22:09:12,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:09:12,660 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 100 transitions. [2024-11-19 22:09:12,660 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) [2024-11-19 22:09:12,660 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 100 transitions. [2024-11-19 22:09:12,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-19 22:09:12,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:09:12,665 INFO L215 NwaCegarLoop]: trace histogram [67, 67, 54, 33, 33, 33, 33, 33, 33, 33, 21, 13, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:09:12,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 22:09:12,866 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 [2024-11-19 22:09:12,866 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:09:12,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:09:12,867 INFO L85 PathProgramCache]: Analyzing trace with hash 534519633, now seen corresponding path program 3 times [2024-11-19 22:09:12,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:09:12,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409473366] [2024-11-19 22:09:12,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:09:12,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:09:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:09:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 22:09:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 22:09:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:09:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:13,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-19 22:09:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:09:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 22:09:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 22:09:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:09:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 22:09:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 22:09:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:09:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:14,310 INFO L134 CoverageAnalysis]: Checked inductivity of 12387 backedges. 924 proven. 2486 refuted. 0 times theorem prover too weak. 8977 trivial. 0 not checked. [2024-11-19 22:09:14,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:09:14,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409473366] [2024-11-19 22:09:14,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409473366] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:09:14,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177420256] [2024-11-19 22:09:14,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 22:09:14,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:09:14,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:09:14,312 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) [2024-11-19 22:09:14,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 22:09:14,444 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2024-11-19 22:09:14,445 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 22:09:14,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 22:09:14,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:09:14,561 INFO L134 CoverageAnalysis]: Checked inductivity of 12387 backedges. 254 proven. 2070 refuted. 0 times theorem prover too weak. 10063 trivial. 0 not checked. [2024-11-19 22:09:14,561 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:09:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 12387 backedges. 254 proven. 2127 refuted. 0 times theorem prover too weak. 10006 trivial. 0 not checked. [2024-11-19 22:09:16,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177420256] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:09:16,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:09:16,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 11, 17] total 35 [2024-11-19 22:09:16,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041950] [2024-11-19 22:09:16,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:09:16,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-19 22:09:16,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:09:16,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-19 22:09:16,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=909, Unknown=0, NotChecked=0, Total=1190 [2024-11-19 22:09:16,456 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) [2024-11-19 22:09:16,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:09:16,958 INFO L93 Difference]: Finished difference Result 187 states and 400 transitions. [2024-11-19 22:09:16,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-19 22:09:16,958 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 [2024-11-19 22:09:16,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:09:16,961 INFO L225 Difference]: With dead ends: 187 [2024-11-19 22:09:16,961 INFO L226 Difference]: Without dead ends: 126 [2024-11-19 22:09:16,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1039 SyntacticMatches, 6 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=830, Invalid=2592, Unknown=0, NotChecked=0, Total=3422 [2024-11-19 22:09:16,964 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 169 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:09:16,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 209 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:09:16,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-19 22:09:16,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 108. [2024-11-19 22:09:16,978 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) [2024-11-19 22:09:16,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 157 transitions. [2024-11-19 22:09:16,979 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 157 transitions. Word has length 461 [2024-11-19 22:09:16,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:09:16,980 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 157 transitions. [2024-11-19 22:09:16,980 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) [2024-11-19 22:09:16,980 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2024-11-19 22:09:16,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 748 [2024-11-19 22:09:16,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:09:16,990 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 88, 54, 54, 54, 54, 54, 54, 54, 34, 21, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:09:16,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 22:09:17,194 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 [2024-11-19 22:09:17,195 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:09:17,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:09:17,195 INFO L85 PathProgramCache]: Analyzing trace with hash -425340118, now seen corresponding path program 4 times [2024-11-19 22:09:17,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:09:17,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828207088] [2024-11-19 22:09:17,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:09:17,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:09:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:21,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:24,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:25,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:25,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:25,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:25,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:09:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 22:09:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 22:09:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:09:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-19 22:09:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:09:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 22:09:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-11-19 22:09:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:09:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 22:09:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 22:09:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:09:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:26,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2024-11-19 22:09:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:09:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 22:09:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 22:09:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:09:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-19 22:09:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:09:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 22:09:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:09:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 22:09:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 22:09:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:09:27,714 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2024-11-19 22:09:27,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:09:27,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828207088] [2024-11-19 22:09:27,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828207088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:09:27,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282610411] [2024-11-19 22:09:27,715 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 22:09:27,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:09:27,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:09:27,717 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) [2024-11-19 22:09:27,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 22:09:27,905 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 22:09:27,905 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 22:09:27,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 1677 conjuncts, 220 conjuncts are in the unsatisfiable core [2024-11-19 22:09:27,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:09:28,453 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2024-11-19 22:09:28,453 INFO L311 TraceCheckSpWp]: Computing backward predicates...