./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/recursive-simple/afterrec-2.c --full-output --preprocessor.use.memory.slicer false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 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 ../../../trunk/examples/svcomp/recursive-simple/afterrec-2.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 1c92d0a3779cdad7e145b29b6ae35aeb1a90bc327e2327b92a2158da4de5b6ea --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 23:14:59,257 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 23:14:59,334 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-22 23:14:59,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 23:14:59,338 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 23:14:59,363 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 23:14:59,364 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 23:14:59,364 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 23:14:59,365 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 23:14:59,368 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 23:14:59,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 23:14:59,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 23:14:59,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 23:14:59,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 23:14:59,370 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 23:14:59,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 23:14:59,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 23:14:59,371 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 23:14:59,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 23:14:59,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 23:14:59,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 23:14:59,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 23:14:59,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 23:14:59,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 23:14:59,372 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 23:14:59,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 23:14:59,372 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 23:14:59,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 23:14:59,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 23:14:59,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 23:14:59,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 23:14:59,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 23:14:59,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 23:14:59,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 23:14:59,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 23:14:59,375 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 23:14:59,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 23:14:59,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 23:14:59,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 23:14:59,375 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 23:14:59,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 23:14:59,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 23:14:59,376 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c92d0a3779cdad7e145b29b6ae35aeb1a90bc327e2327b92a2158da4de5b6ea Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 23:14:59,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 23:14:59,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 23:14:59,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 23:14:59,613 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 23:14:59,614 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 23:14:59,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/afterrec-2.c [2023-11-22 23:15:00,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 23:15:00,751 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 23:15:00,751 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/afterrec-2.c [2023-11-22 23:15:00,758 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65b01ec27/d0c2d5647ec84291913b766fb09e3a32/FLAGb672b3793 [2023-11-22 23:15:00,778 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65b01ec27/d0c2d5647ec84291913b766fb09e3a32 [2023-11-22 23:15:00,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 23:15:00,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 23:15:00,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 23:15:00,783 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 23:15:00,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 23:15:00,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:15:00" (1/1) ... [2023-11-22 23:15:00,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77491903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00, skipping insertion in model container [2023-11-22 23:15:00,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:15:00" (1/1) ... [2023-11-22 23:15:00,801 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 23:15:00,915 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/afterrec-2.c[318,331] [2023-11-22 23:15:00,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 23:15:00,967 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 23:15:00,977 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/afterrec-2.c[318,331] [2023-11-22 23:15:00,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 23:15:00,987 INFO L206 MainTranslator]: Completed translation [2023-11-22 23:15:00,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00 WrapperNode [2023-11-22 23:15:00,991 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 23:15:00,992 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 23:15:00,992 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 23:15:00,992 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 23:15:00,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00" (1/1) ... [2023-11-22 23:15:01,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00" (1/1) ... [2023-11-22 23:15:01,010 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10 [2023-11-22 23:15:01,011 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 23:15:01,011 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 23:15:01,011 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 23:15:01,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 23:15:01,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00" (1/1) ... [2023-11-22 23:15:01,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00" (1/1) ... [2023-11-22 23:15:01,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00" (1/1) ... [2023-11-22 23:15:01,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00" (1/1) ... [2023-11-22 23:15:01,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00" (1/1) ... [2023-11-22 23:15:01,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00" (1/1) ... [2023-11-22 23:15:01,022 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00" (1/1) ... [2023-11-22 23:15:01,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00" (1/1) ... [2023-11-22 23:15:01,023 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 23:15:01,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 23:15:01,024 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 23:15:01,024 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 23:15:01,024 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00" (1/1) ... [2023-11-22 23:15:01,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 23:15:01,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:15:01,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 23:15:01,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 23:15:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 23:15:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-22 23:15:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-22 23:15:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 23:15:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 23:15:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-22 23:15:01,120 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 23:15:01,122 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 23:15:01,180 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 23:15:01,192 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 23:15:01,193 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-22 23:15:01,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:15:01 BoogieIcfgContainer [2023-11-22 23:15:01,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 23:15:01,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 23:15:01,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 23:15:01,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 23:15:01,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:15:00" (1/3) ... [2023-11-22 23:15:01,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c4ef4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:15:01, skipping insertion in model container [2023-11-22 23:15:01,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:00" (2/3) ... [2023-11-22 23:15:01,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c4ef4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:15:01, skipping insertion in model container [2023-11-22 23:15:01,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:15:01" (3/3) ... [2023-11-22 23:15:01,200 INFO L112 eAbstractionObserver]: Analyzing ICFG afterrec-2.c [2023-11-22 23:15:01,213 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 23:15:01,213 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 23:15:01,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 23:15:01,253 INFO L357 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, mHoare=true, 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;@1b465fe4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 23:15:01,254 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 23:15:01,257 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-22 23:15:01,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-22 23:15:01,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:15:01,263 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-22 23:15:01,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting fErr0ASSERT_VIOLATIONERROR_FUNCTION === [fErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:15:01,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:15:01,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1625650052, now seen corresponding path program 1 times [2023-11-22 23:15:01,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:15:01,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483087108] [2023-11-22 23:15:01,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:15:01,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:15:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:15:01,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:15:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:15:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 23:15:01,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:15:01,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483087108] [2023-11-22 23:15:01,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483087108] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:15:01,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097916223] [2023-11-22 23:15:01,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:15:01,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:15:01,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:15:01,506 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) [2023-11-22 23:15:01,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 23:15:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:15:01,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 23:15:01,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:15:01,597 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-22 23:15:01,598 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:15:01,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097916223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:15:01,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:15:01,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-22 23:15:01,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249929475] [2023-11-22 23:15:01,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:15:01,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 23:15:01,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:15:01,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 23:15:01,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:15:01,640 INFO L87 Difference]: Start difference. First operand has 11 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 23:15:01,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:15:01,690 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2023-11-22 23:15:01,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 23:15:01,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-11-22 23:15:01,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:15:01,697 INFO L225 Difference]: With dead ends: 17 [2023-11-22 23:15:01,697 INFO L226 Difference]: Without dead ends: 0 [2023-11-22 23:15:01,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:15:01,702 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 23:15:01,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 23:15:01,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-22 23:15:01,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-22 23:15:01,718 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) [2023-11-22 23:15:01,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-22 23:15:01,719 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2023-11-22 23:15:01,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:15:01,720 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-22 23:15:01,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 23:15:01,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-22 23:15:01,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-22 23:15:01,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-22 23:15:01,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-22 23:15:01,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-22 23:15:01,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-22 23:15:01,939 INFO L899 garLoopResultBuilder]: For program point fErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2023-11-22 23:15:01,941 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5 10) the Hoare annotation is: true [2023-11-22 23:15:01,941 INFO L895 garLoopResultBuilder]: At program point L8(line 8) the Hoare annotation is: (not (<= |f_#in~n| 2)) [2023-11-22 23:15:01,941 INFO L899 garLoopResultBuilder]: For program point fEXIT(lines 5 10) no Hoare annotation was computed. [2023-11-22 23:15:01,941 INFO L899 garLoopResultBuilder]: For program point L8-1(lines 5 10) no Hoare annotation was computed. [2023-11-22 23:15:01,941 INFO L899 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2023-11-22 23:15:01,941 INFO L899 garLoopResultBuilder]: For program point fFINAL(lines 5 10) no Hoare annotation was computed. [2023-11-22 23:15:01,942 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-22 23:15:01,942 INFO L902 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: true [2023-11-22 23:15:01,942 INFO L899 garLoopResultBuilder]: For program point L13-1(lines 12 14) no Hoare annotation was computed. [2023-11-22 23:15:01,942 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-22 23:15:01,945 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-22 23:15:01,947 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-22 23:15:01,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 11:15:01 BoogieIcfgContainer [2023-11-22 23:15:01,950 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-22 23:15:01,951 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-22 23:15:01,951 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-22 23:15:01,951 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-22 23:15:01,951 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:15:01" (3/4) ... [2023-11-22 23:15:01,953 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-22 23:15:01,955 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2023-11-22 23:15:01,958 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-22 23:15:01,960 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-22 23:15:01,960 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-22 23:15:01,960 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-22 23:15:02,017 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-11-22 23:15:02,017 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2023-11-22 23:15:02,017 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-22 23:15:02,019 INFO L158 Benchmark]: Toolchain (without parser) took 1237.38ms. Allocated memory is still 174.1MB. Free memory was 109.1MB in the beginning and 97.9MB in the end (delta: 11.2MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2023-11-22 23:15:02,019 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 46.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 23:15:02,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.97ms. Allocated memory is still 174.1MB. Free memory was 109.1MB in the beginning and 146.1MB in the end (delta: -37.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-22 23:15:02,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.31ms. Allocated memory is still 174.1MB. Free memory was 146.1MB in the beginning and 144.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-22 23:15:02,020 INFO L158 Benchmark]: Boogie Preprocessor took 11.69ms. Allocated memory is still 174.1MB. Free memory is still 144.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 23:15:02,020 INFO L158 Benchmark]: RCFGBuilder took 169.94ms. Allocated memory is still 174.1MB. Free memory was 143.0MB in the beginning and 133.5MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-22 23:15:02,021 INFO L158 Benchmark]: TraceAbstraction took 755.18ms. Allocated memory is still 174.1MB. Free memory was 133.5MB in the beginning and 102.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-22 23:15:02,021 INFO L158 Benchmark]: Witness Printer took 67.03ms. Allocated memory is still 174.1MB. Free memory was 102.1MB in the beginning and 97.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-22 23:15:02,023 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 46.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.97ms. Allocated memory is still 174.1MB. Free memory was 109.1MB in the beginning and 146.1MB in the end (delta: -37.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.31ms. Allocated memory is still 174.1MB. Free memory was 146.1MB in the beginning and 144.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.69ms. Allocated memory is still 174.1MB. Free memory is still 144.0MB. There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 169.94ms. Allocated memory is still 174.1MB. Free memory was 143.0MB in the beginning and 133.5MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 755.18ms. Allocated memory is still 174.1MB. Free memory was 133.5MB in the beginning and 102.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 67.03ms. Allocated memory is still 174.1MB. Free memory was 102.1MB in the beginning and 97.9MB 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: 9]: 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 2 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 2 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 6 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 1 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 10/14 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 RESULT: Ultimate proved your program to be correct! [2023-11-22 23:15:02,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE