./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/recursive/BallRajamani-SPIN2000-Fig1.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version c4f91361
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/BallRajamani-SPIN2000-Fig1.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 fb642764a70597a56a9c7e88ddf473ddd44e8ae88be573923352b61cd2189845
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-c4f9136-m
[2023-11-23 14:22:52,610 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-23 14:22:52,662 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-23 14:22:52,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-23 14:22:52,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-23 14:22:52,701 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-23 14:22:52,702 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-23 14:22:52,702 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-23 14:22:52,702 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-23 14:22:52,705 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-11-23 14:22:52,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-23 14:22:52,706 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-23 14:22:52,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-23 14:22:52,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-23 14:22:52,708 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-23 14:22:52,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-23 14:22:52,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-23 14:22:52,708 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-23 14:22:52,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-23 14:22:52,709 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-23 14:22:52,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-23 14:22:52,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-23 14:22:52,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-23 14:22:52,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-23 14:22:52,710 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-23 14:22:52,710 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-23 14:22:52,710 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-23 14:22:52,711 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-23 14:22:52,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-23 14:22:52,711 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-23 14:22:52,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-23 14:22:52,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 14:22:52,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-23 14:22:52,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-23 14:22:52,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-23 14:22:52,713 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-23 14:22:52,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-23 14:22:52,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-23 14:22:52,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-23 14:22:52,714 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-23 14:22:52,714 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-23 14:22:52,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-23 14:22:52,714 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb642764a70597a56a9c7e88ddf473ddd44e8ae88be573923352b61cd2189845
[2023-11-23 14:22:52,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-23 14:22:52,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-23 14:22:52,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-23 14:22:52,911 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-23 14:22:52,911 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-23 14:22:52,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/BallRajamani-SPIN2000-Fig1.c
[2023-11-23 14:22:53,990 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-23 14:22:54,136 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-23 14:22:54,137 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/BallRajamani-SPIN2000-Fig1.c
[2023-11-23 14:22:54,143 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d762058/5e60ee5dc124488b833bfaf9202b4785/FLAGc69355256
[2023-11-23 14:22:54,155 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d762058/5e60ee5dc124488b833bfaf9202b4785
[2023-11-23 14:22:54,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-23 14:22:54,161 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-23 14:22:54,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-23 14:22:54,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-23 14:22:54,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-23 14:22:54,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15faaaf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54, skipping insertion in model container
[2023-11-23 14:22:54,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,183 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-23 14:22:54,295 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/BallRajamani-SPIN2000-Fig1.c[718,731]
[2023-11-23 14:22:54,298 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 14:22:54,308 INFO L202 MainTranslator]: Completed pre-run
[2023-11-23 14:22:54,318 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/BallRajamani-SPIN2000-Fig1.c[718,731]
[2023-11-23 14:22:54,319 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 14:22:54,329 INFO L206 MainTranslator]: Completed translation
[2023-11-23 14:22:54,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54 WrapperNode
[2023-11-23 14:22:54,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-23 14:22:54,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-23 14:22:54,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-23 14:22:54,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-23 14:22:54,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,350 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25
[2023-11-23 14:22:54,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-23 14:22:54,351 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-23 14:22:54,351 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-23 14:22:54,351 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-23 14:22:54,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,359 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,366 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].
[2023-11-23 14:22:54,366 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,372 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-23 14:22:54,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-23 14:22:54,377 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-23 14:22:54,377 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-23 14:22:54,378 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54" (1/1) ...
[2023-11-23 14:22:54,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 14:22:54,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-23 14:22:54,409 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)
[2023-11-23 14:22:54,426 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
[2023-11-23 14:22:54,449 INFO L130 BoogieDeclarations]: Found specification of procedure A
[2023-11-23 14:22:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure A
[2023-11-23 14:22:54,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-23 14:22:54,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-23 14:22:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-23 14:22:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-23 14:22:54,500 INFO L241 CfgBuilder]: Building ICFG
[2023-11-23 14:22:54,502 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-23 14:22:54,617 INFO L282 CfgBuilder]: Performing block encoding
[2023-11-23 14:22:54,633 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-23 14:22:54,633 INFO L309 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-23 14:22:54,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:54 BoogieIcfgContainer
[2023-11-23 14:22:54,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-23 14:22:54,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-23 14:22:54,635 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-23 14:22:54,638 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-23 14:22:54,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:22:54" (1/3) ...
[2023-11-23 14:22:54,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fcdcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:54, skipping insertion in model container
[2023-11-23 14:22:54,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54" (2/3) ...
[2023-11-23 14:22:54,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fcdcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:54, skipping insertion in model container
[2023-11-23 14:22:54,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:54" (3/3) ...
[2023-11-23 14:22:54,640 INFO L112 eAbstractionObserver]: Analyzing ICFG BallRajamani-SPIN2000-Fig1.c
[2023-11-23 14:22:54,653 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-23 14:22:54,653 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-23 14:22:54,683 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-23 14:22:54,689 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;@7cb582bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-23 14:22:54,689 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-23 14:22:54,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-23 14:22:54,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2023-11-23 14:22:54,697 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 14:22:54,697 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 14:22:54,704 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 14:22:54,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 14:22:54,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1944176839, now seen corresponding path program 1 times
[2023-11-23 14:22:54,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 14:22:54,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273399007]
[2023-11-23 14:22:54,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 14:22:54,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 14:22:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 14:22:54,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-23 14:22:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 14:22:54,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2023-11-23 14:22:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 14:22:54,975 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-23 14:22:54,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-23 14:22:54,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273399007]
[2023-11-23 14:22:54,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273399007] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 14:22:54,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818251531]
[2023-11-23 14:22:54,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 14:22:54,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 14:22:54,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-23 14:22:54,987 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)
[2023-11-23 14:22:55,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-23 14:22:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 14:22:55,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-23 14:22:55,040 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 14:22:55,101 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-23 14:22:55,102 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-23 14:22:55,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-23 14:22:55,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818251531] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-23 14:22:55,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-23 14:22:55,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7
[2023-11-23 14:22:55,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886295224]
[2023-11-23 14:22:55,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-23 14:22:55,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-23 14:22:55,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-23 14:22:55,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-23 14:22:55,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2023-11-23 14:22:55,197 INFO L87 Difference]: Start difference. First operand has 16 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-23 14:22:55,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 14:22:55,377 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions.
[2023-11-23 14:22:55,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2023-11-23 14:22:55,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15
[2023-11-23 14:22:55,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 14:22:55,385 INFO L225 Difference]: With dead ends: 36
[2023-11-23 14:22:55,385 INFO L226 Difference]: Without dead ends: 16
[2023-11-23 14:22:55,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110
[2023-11-23 14:22:55,394 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-23 14:22:55,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 30 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-23 14:22:55,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2023-11-23 14:22:55,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2023-11-23 14:22:55,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2023-11-23 14:22:55,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions.
[2023-11-23 14:22:55,429 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 15
[2023-11-23 14:22:55,429 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 14:22:55,429 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions.
[2023-11-23 14:22:55,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-23 14:22:55,429 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions.
[2023-11-23 14:22:55,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2023-11-23 14:22:55,431 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 14:22:55,431 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 14:22:55,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-23 14:22:55,635 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
[2023-11-23 14:22:55,635 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 14:22:55,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 14:22:55,639 INFO L85 PathProgramCache]: Analyzing trace with hash -554895117, now seen corresponding path program 1 times
[2023-11-23 14:22:55,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 14:22:55,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986811111]
[2023-11-23 14:22:55,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 14:22:55,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 14:22:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-23 14:22:55,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-23 14:22:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-23 14:22:55,691 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-23 14:22:55,691 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-23 14:22:55,692 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-23 14:22:55,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-23 14:22:55,696 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-23 14:22:55,698 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-23 14:22:55,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated
[2023-11-23 14:22:55,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated
[2023-11-23 14:22:55,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated
[2023-11-23 14:22:55,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret7 could not be translated
[2023-11-23 14:22:55,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:22:55 BoogieIcfgContainer
[2023-11-23 14:22:55,717 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-23 14:22:55,717 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-23 14:22:55,717 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-23 14:22:55,718 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-23 14:22:55,718 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:54" (3/4) ...
[2023-11-23 14:22:55,719 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2023-11-23 14:22:55,728 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated
[2023-11-23 14:22:55,728 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated
[2023-11-23 14:22:55,729 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated
[2023-11-23 14:22:55,729 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret7 could not be translated
[2023-11-23 14:22:55,760 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2023-11-23 14:22:55,768 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-23 14:22:55,768 INFO L158 Benchmark]: Toolchain (without parser) took 1607.47ms. Allocated memory is still 153.1MB. Free memory was 119.6MB in the beginning and 105.5MB in the end (delta: 14.1MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB.
[2023-11-23 14:22:55,769 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 14:22:55,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.80ms. Allocated memory is still 153.1MB. Free memory was 119.6MB in the beginning and 109.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-23 14:22:55,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.75ms. Allocated memory is still 153.1MB. Free memory was 109.0MB in the beginning and 107.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 14:22:55,769 INFO L158 Benchmark]: Boogie Preprocessor took 20.65ms. Allocated memory is still 153.1MB. Free memory was 107.9MB in the beginning and 106.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-23 14:22:55,770 INFO L158 Benchmark]: RCFGBuilder took 257.13ms. Allocated memory is still 153.1MB. Free memory was 106.3MB in the beginning and 95.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-23 14:22:55,770 INFO L158 Benchmark]: TraceAbstraction took 1081.74ms. Allocated memory is still 153.1MB. Free memory was 95.3MB in the beginning and 107.6MB in the end (delta: -12.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 14:22:55,772 INFO L158 Benchmark]: Witness Printer took 50.58ms. Allocated memory is still 153.1MB. Free memory was 107.6MB in the beginning and 105.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-23 14:22:55,773 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 121.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 167.80ms. Allocated memory is still 153.1MB. Free memory was 119.6MB in the beginning and 109.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 19.75ms. Allocated memory is still 153.1MB. Free memory was 109.0MB in the beginning and 107.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 20.65ms. Allocated memory is still 153.1MB. Free memory was 107.9MB in the beginning and 106.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 257.13ms. Allocated memory is still 153.1MB. Free memory was 106.3MB in the beginning and 95.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 1081.74ms. Allocated memory is still 153.1MB. Free memory was 95.3MB in the beginning and 107.6MB in the end (delta: -12.3MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 50.58ms. Allocated memory is still 153.1MB. Free memory was 107.6MB in the beginning and 105.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~ret7 could not be translated
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~ret7 could not be translated
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
* 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
- CounterExampleResult [Line: 33]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L16] int g;
[L28] int g = __VERIFIER_nondet_int();
[L29] int h = !g;
VAL [g=0, g=5, h=0]
[L30] CALL A(g,h)
VAL [\old(a1)=5, \old(a2)=0, \old(g)=0, g=0]
[L19] COND TRUE \read(a1)
VAL [\old(a1)=5, \old(a2)=0, \old(g)=0, a1=5, a2=0, g=0]
[L20] CALL A(a2,a1)
VAL [\old(a1)=0, \old(a2)=5, \old(g)=0, g=0]
[L19] COND FALSE !(\read(a1))
[L22] g = a2
VAL [\old(a1)=0, \old(a2)=5, \old(g)=0, a1=0, a2=5, g=5]
[L20] RET A(a2,a1)
VAL [\old(a1)=5, \old(a2)=0, \old(g)=0, a1=5, a2=0, g=5]
[L30] RET A(g,h)
VAL [g=5, g=5, h=0]
[L31] CALL A(g,h)
VAL [\old(a1)=5, \old(a2)=0, \old(g)=5, g=5]
[L19] COND TRUE \read(a1)
VAL [\old(a1)=5, \old(a2)=0, \old(g)=5, a1=5, a2=0, g=5]
[L20] CALL A(a2,a1)
VAL [\old(a1)=0, \old(a2)=5, \old(g)=5, g=5]
[L19] COND FALSE !(\read(a1))
[L22] g = a2
VAL [\old(a1)=0, \old(a2)=5, \old(g)=5, a1=0, a2=5, g=5]
[L20] RET A(a2,a1)
VAL [\old(a1)=5, \old(a2)=0, \old(g)=5, a1=5, a2=0, g=5]
[L31] RET A(g,h)
VAL [g=5, g=5, h=0]
[L32] COND TRUE \read(g)
VAL [g=5, g=5, h=0]
[L33] reach_error()
VAL [g=5, g=5, h=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 10 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 9, 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 1 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 3/12 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
RESULT: Ultimate proved your program to be incorrect!
[2023-11-23 14:22:55,796 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
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE