./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/sum01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops/sum01-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a3f2d13c78d25176694a62cbb92a7cb676735e2350dda904e35c5c69ea362e5 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 14:02:47,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 14:02:47,470 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 14:02:47,474 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 14:02:47,474 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 14:02:47,504 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 14:02:47,504 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 14:02:47,505 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 14:02:47,505 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 14:02:47,506 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 14:02:47,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 14:02:47,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 14:02:47,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 14:02:47,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 14:02:47,512 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 14:02:47,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 14:02:47,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 14:02:47,513 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 14:02:47,513 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 14:02:47,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 14:02:47,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 14:02:47,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 14:02:47,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 14:02:47,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 14:02:47,516 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 14:02:47,516 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 14:02:47,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 14:02:47,517 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 14:02:47,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 14:02:47,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 14:02:47,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 14:02:47,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 14:02:47,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:02:47,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 14:02:47,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 14:02:47,520 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 14:02:47,520 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 14:02:47,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 14:02:47,520 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 14:02:47,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 14:02:47,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 14:02:47,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 14:02:47,521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a3f2d13c78d25176694a62cbb92a7cb676735e2350dda904e35c5c69ea362e5 [2024-11-08 14:02:47,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 14:02:47,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 14:02:47,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 14:02:47,867 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 14:02:47,868 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 14:02:47,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum01-2.i [2024-11-08 14:02:49,303 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 14:02:49,491 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 14:02:49,491 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum01-2.i [2024-11-08 14:02:49,498 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c08b17880/e85d37b4361c4ff0a8ee1d9e1f644f9c/FLAGc4ff2c8bd [2024-11-08 14:02:49,881 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c08b17880/e85d37b4361c4ff0a8ee1d9e1f644f9c [2024-11-08 14:02:49,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 14:02:49,885 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 14:02:49,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 14:02:49,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 14:02:49,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 14:02:49,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:02:49" (1/1) ... [2024-11-08 14:02:49,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d33973d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:49, skipping insertion in model container [2024-11-08 14:02:49,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:02:49" (1/1) ... [2024-11-08 14:02:49,914 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 14:02:50,101 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/loops/sum01-2.i[849,862] [2024-11-08 14:02:50,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:02:50,128 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 14:02:50,141 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/loops/sum01-2.i[849,862] [2024-11-08 14:02:50,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:02:50,163 INFO L204 MainTranslator]: Completed translation [2024-11-08 14:02:50,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50 WrapperNode [2024-11-08 14:02:50,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 14:02:50,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 14:02:50,166 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 14:02:50,166 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 14:02:50,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50" (1/1) ... [2024-11-08 14:02:50,179 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50" (1/1) ... [2024-11-08 14:02:50,195 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2024-11-08 14:02:50,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 14:02:50,197 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 14:02:50,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 14:02:50,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 14:02:50,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50" (1/1) ... [2024-11-08 14:02:50,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50" (1/1) ... [2024-11-08 14:02:50,208 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50" (1/1) ... [2024-11-08 14:02:50,225 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]. [2024-11-08 14:02:50,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50" (1/1) ... [2024-11-08 14:02:50,226 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50" (1/1) ... [2024-11-08 14:02:50,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50" (1/1) ... [2024-11-08 14:02:50,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50" (1/1) ... [2024-11-08 14:02:50,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50" (1/1) ... [2024-11-08 14:02:50,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50" (1/1) ... [2024-11-08 14:02:50,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 14:02:50,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 14:02:50,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 14:02:50,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 14:02:50,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50" (1/1) ... [2024-11-08 14:02:50,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:02:50,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:02:50,278 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) [2024-11-08 14:02:50,284 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 [2024-11-08 14:02:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 14:02:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 14:02:50,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 14:02:50,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 14:02:50,400 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 14:02:50,403 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 14:02:50,541 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-08 14:02:50,545 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 14:02:50,568 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 14:02:50,572 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 14:02:50,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:02:50 BoogieIcfgContainer [2024-11-08 14:02:50,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 14:02:50,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 14:02:50,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 14:02:50,582 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 14:02:50,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 02:02:49" (1/3) ... [2024-11-08 14:02:50,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be543df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:02:50, skipping insertion in model container [2024-11-08 14:02:50,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:02:50" (2/3) ... [2024-11-08 14:02:50,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be543df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:02:50, skipping insertion in model container [2024-11-08 14:02:50,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:02:50" (3/3) ... [2024-11-08 14:02:50,589 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01-2.i [2024-11-08 14:02:50,606 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 14:02:50,607 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 14:02:50,675 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 14:02:50,686 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;@4a0cf965, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 14:02:50,686 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 14:02:50,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 14:02:50,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 14:02:50,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:02:50,698 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:02:50,699 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:02:50,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:02:50,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1807120264, now seen corresponding path program 1 times [2024-11-08 14:02:50,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:02:50,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748348988] [2024-11-08 14:02:50,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:02:50,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:02:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:02:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:02:50,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:02:50,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748348988] [2024-11-08 14:02:50,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748348988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:02:50,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:02:50,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 14:02:50,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426546357] [2024-11-08 14:02:50,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:02:50,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 14:02:50,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:02:50,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 14:02:50,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 14:02:50,902 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 14:02:50,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:02:50,916 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2024-11-08 14:02:50,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 14:02:50,918 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-08 14:02:50,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:02:50,925 INFO L225 Difference]: With dead ends: 21 [2024-11-08 14:02:50,925 INFO L226 Difference]: Without dead ends: 9 [2024-11-08 14:02:50,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 14:02:50,933 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:02:50,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:02:50,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-08 14:02:50,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-08 14:02:50,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 14:02:50,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-08 14:02:50,964 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2024-11-08 14:02:50,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:02:50,964 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-08 14:02:50,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 14:02:50,965 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-08 14:02:50,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 14:02:50,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:02:50,966 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:02:50,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 14:02:50,967 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:02:50,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:02:50,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1806941518, now seen corresponding path program 1 times [2024-11-08 14:02:50,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:02:50,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393354705] [2024-11-08 14:02:50,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:02:50,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:02:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:02:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:02:51,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:02:51,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393354705] [2024-11-08 14:02:51,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393354705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:02:51,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:02:51,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 14:02:51,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105168588] [2024-11-08 14:02:51,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:02:51,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:02:51,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:02:51,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:02:51,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 14:02:51,121 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 14:02:51,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:02:51,142 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2024-11-08 14:02:51,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:02:51,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-08 14:02:51,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:02:51,144 INFO L225 Difference]: With dead ends: 14 [2024-11-08 14:02:51,144 INFO L226 Difference]: Without dead ends: 10 [2024-11-08 14:02:51,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 14:02:51,145 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:02:51,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:02:51,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-08 14:02:51,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-11-08 14:02:51,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 14:02:51,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-08 14:02:51,149 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2024-11-08 14:02:51,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:02:51,150 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-11-08 14:02:51,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 14:02:51,150 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-08 14:02:51,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 14:02:51,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:02:51,151 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:02:51,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 14:02:51,151 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:02:51,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:02:51,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1357243696, now seen corresponding path program 1 times [2024-11-08 14:02:51,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:02:51,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369553702] [2024-11-08 14:02:51,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:02:51,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:02:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:02:51,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:02:51,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:02:51,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369553702] [2024-11-08 14:02:51,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369553702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:02:51,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597685485] [2024-11-08 14:02:51,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:02:51,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:02:51,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:02:51,507 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) [2024-11-08 14:02:51,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 14:02:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:02:51,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 14:02:51,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:02:51,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:02:51,737 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:02:51,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:02:51,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597685485] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 14:02:51,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 14:02:51,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 14:02:51,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788856338] [2024-11-08 14:02:51,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 14:02:51,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 14:02:51,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:02:51,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 14:02:51,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-11-08 14:02:51,914 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 14:02:52,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:02:52,046 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-08 14:02:52,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 14:02:52,047 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-08 14:02:52,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:02:52,047 INFO L225 Difference]: With dead ends: 19 [2024-11-08 14:02:52,047 INFO L226 Difference]: Without dead ends: 14 [2024-11-08 14:02:52,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-08 14:02:52,052 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:02:52,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:02:52,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-08 14:02:52,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-08 14:02:52,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 14:02:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-11-08 14:02:52,059 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9 [2024-11-08 14:02:52,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:02:52,060 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2024-11-08 14:02:52,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 14:02:52,060 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-11-08 14:02:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 14:02:52,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:02:52,061 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:02:52,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 14:02:52,262 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 [2024-11-08 14:02:52,263 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:02:52,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:02:52,263 INFO L85 PathProgramCache]: Analyzing trace with hash -530250892, now seen corresponding path program 2 times [2024-11-08 14:02:52,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:02:52,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257084165] [2024-11-08 14:02:52,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:02:52,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:02:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:02:52,563 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 14:02:52,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:02:52,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257084165] [2024-11-08 14:02:52,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257084165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:02:52,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109678574] [2024-11-08 14:02:52,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 14:02:52,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:02:52,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:02:52,569 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) [2024-11-08 14:02:52,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 14:02:52,612 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 14:02:52,612 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 14:02:52,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 14:02:52,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:02:52,795 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:02:52,795 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:02:53,065 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:02:53,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109678574] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 14:02:53,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 14:02:53,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 27 [2024-11-08 14:02:53,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426033943] [2024-11-08 14:02:53,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 14:02:53,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-08 14:02:53,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:02:53,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-08 14:02:53,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2024-11-08 14:02:53,071 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 27 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 14:02:53,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:02:53,271 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2024-11-08 14:02:53,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 14:02:53,271 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-08 14:02:53,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:02:53,272 INFO L225 Difference]: With dead ends: 17 [2024-11-08 14:02:53,272 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 14:02:53,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=182, Invalid=940, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 14:02:53,274 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:02:53,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:02:53,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 14:02:53,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 14:02:53,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 14:02:53,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 14:02:53,275 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2024-11-08 14:02:53,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:02:53,275 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 14:02:53,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 14:02:53,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 14:02:53,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 14:02:53,278 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 14:02:53,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 14:02:53,482 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 [2024-11-08 14:02:53,486 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-08 14:02:53,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 14:02:53,533 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 14:02:53,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 02:02:53 BoogieIcfgContainer [2024-11-08 14:02:53,553 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 14:02:53,554 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 14:02:53,554 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 14:02:53,554 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 14:02:53,555 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:02:50" (3/4) ... [2024-11-08 14:02:53,557 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 14:02:53,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-08 14:02:53,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 14:02:53,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 14:02:53,566 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 14:02:53,654 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 14:02:53,654 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 14:02:53,654 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 14:02:53,655 INFO L158 Benchmark]: Toolchain (without parser) took 3770.41ms. Allocated memory is still 178.3MB. Free memory was 138.3MB in the beginning and 80.4MB in the end (delta: 57.9MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2024-11-08 14:02:53,655 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 67.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 14:02:53,656 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.99ms. Allocated memory is still 178.3MB. Free memory was 138.3MB in the beginning and 125.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 14:02:53,656 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.86ms. Allocated memory is still 178.3MB. Free memory was 125.8MB in the beginning and 124.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 14:02:53,656 INFO L158 Benchmark]: Boogie Preprocessor took 37.31ms. Allocated memory is still 178.3MB. Free memory was 124.2MB in the beginning and 122.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 14:02:53,656 INFO L158 Benchmark]: RCFGBuilder took 336.86ms. Allocated memory is still 178.3MB. Free memory was 122.5MB in the beginning and 143.4MB in the end (delta: -20.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 14:02:53,657 INFO L158 Benchmark]: TraceAbstraction took 2978.08ms. Allocated memory is still 178.3MB. Free memory was 142.9MB in the beginning and 84.6MB in the end (delta: 58.3MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2024-11-08 14:02:53,657 INFO L158 Benchmark]: Witness Printer took 100.56ms. Allocated memory is still 178.3MB. Free memory was 84.6MB in the beginning and 80.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 14:02:53,659 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 67.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.99ms. Allocated memory is still 178.3MB. Free memory was 138.3MB in the beginning and 125.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.86ms. Allocated memory is still 178.3MB. Free memory was 125.8MB in the beginning and 124.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.31ms. Allocated memory is still 178.3MB. Free memory was 124.2MB in the beginning and 122.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 336.86ms. Allocated memory is still 178.3MB. Free memory was 122.5MB in the beginning and 143.4MB in the end (delta: -20.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2978.08ms. Allocated memory is still 178.3MB. Free memory was 142.9MB in the beginning and 84.6MB in the end (delta: 58.3MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. * Witness Printer took 100.56ms. Allocated memory is still 178.3MB. Free memory was 84.6MB in the beginning and 80.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 191 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 27 mSDtfsCounter, 191 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=3, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 466 SizeOfPredicates, 2 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 1/30 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((((long long) 2 + sn) == ((long long) 2 * i)) && (sn <= ((long long) 2 * n))) || ((i == 1) && (sn == 0))) RESULT: Ultimate proved your program to be correct! [2024-11-08 14:02:53,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE