./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/bitvector-loops/diamond_2-1.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/bitvector-loops/diamond_2-1.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 cfc9b98f01b5740214418c1e274ef62d42bd44052b6c9ba666982a6bcd7671c6
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-c4f9136-m
[2023-11-23 15:24:19,969 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-23 15:24:20,024 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-23 15:24:20,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-23 15:24:20,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-23 15:24:20,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-23 15:24:20,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-23 15:24:20,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-23 15:24:20,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-23 15:24:20,058 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-11-23 15:24:20,059 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-23 15:24:20,059 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-23 15:24:20,060 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-23 15:24:20,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-23 15:24:20,061 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-23 15:24:20,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-23 15:24:20,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-23 15:24:20,062 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-23 15:24:20,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-23 15:24:20,062 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-23 15:24:20,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-23 15:24:20,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-23 15:24:20,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-23 15:24:20,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-23 15:24:20,063 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-23 15:24:20,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-23 15:24:20,064 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-23 15:24:20,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-23 15:24:20,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-23 15:24:20,065 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-23 15:24:20,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-23 15:24:20,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 15:24:20,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-23 15:24:20,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-23 15:24:20,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-23 15:24:20,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-23 15:24:20,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-23 15:24:20,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-23 15:24:20,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-23 15:24:20,067 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-23 15:24:20,068 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-23 15:24:20,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-23 15:24:20,068 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfc9b98f01b5740214418c1e274ef62d42bd44052b6c9ba666982a6bcd7671c6
[2023-11-23 15:24:20,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-23 15:24:20,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-23 15:24:20,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-23 15:24:20,317 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-23 15:24:20,317 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-23 15:24:20,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-loops/diamond_2-1.c
[2023-11-23 15:24:21,371 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-23 15:24:21,515 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-23 15:24:21,515 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-loops/diamond_2-1.c
[2023-11-23 15:24:21,520 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de9e61f9c/5b3fb1e050f84211b4ab0a56a495af3a/FLAG3676ee36f
[2023-11-23 15:24:21,530 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de9e61f9c/5b3fb1e050f84211b4ab0a56a495af3a
[2023-11-23 15:24:21,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-23 15:24:21,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-23 15:24:21,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-23 15:24:21,537 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-23 15:24:21,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-23 15:24:21,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62082635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21, skipping insertion in model container
[2023-11-23 15:24:21,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,560 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-23 15:24:21,664 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-loops/diamond_2-1.c[373,386]
[2023-11-23 15:24:21,688 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 15:24:21,696 INFO L202 MainTranslator]: Completed pre-run
[2023-11-23 15:24:21,704 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-loops/diamond_2-1.c[373,386]
[2023-11-23 15:24:21,715 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 15:24:21,729 INFO L206 MainTranslator]: Completed translation
[2023-11-23 15:24:21,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21 WrapperNode
[2023-11-23 15:24:21,729 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-23 15:24:21,730 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-23 15:24:21,730 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-23 15:24:21,730 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-23 15:24:21,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,773 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56
[2023-11-23 15:24:21,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-23 15:24:21,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-23 15:24:21,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-23 15:24:21,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-23 15:24:21,782 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,792 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,806 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 15:24:21,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,815 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,825 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-23 15:24:21,833 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-23 15:24:21,833 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-23 15:24:21,833 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-23 15:24:21,834 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21" (1/1) ...
[2023-11-23 15:24:21,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 15:24:21,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-23 15:24:21,861 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 15:24:21,868 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 15:24:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-23 15:24:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-23 15:24:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-23 15:24:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-23 15:24:21,943 INFO L241 CfgBuilder]: Building ICFG
[2023-11-23 15:24:21,945 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-23 15:24:22,070 INFO L282 CfgBuilder]: Performing block encoding
[2023-11-23 15:24:22,096 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-23 15:24:22,096 INFO L309 CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-23 15:24:22,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:24:22 BoogieIcfgContainer
[2023-11-23 15:24:22,097 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-23 15:24:22,098 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-23 15:24:22,098 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-23 15:24:22,101 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-23 15:24:22,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:24:21" (1/3) ...
[2023-11-23 15:24:22,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd7c62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:24:22, skipping insertion in model container
[2023-11-23 15:24:22,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:24:21" (2/3) ...
[2023-11-23 15:24:22,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd7c62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:24:22, skipping insertion in model container
[2023-11-23 15:24:22,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:24:22" (3/3) ...
[2023-11-23 15:24:22,103 INFO L112 eAbstractionObserver]: Analyzing ICFG diamond_2-1.c
[2023-11-23 15:24:22,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-23 15:24:22,120 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-23 15:24:22,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-23 15:24:22,160 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;@71e9bdd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-23 15:24:22,161 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-23 15:24:22,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.875) internal successors, (30), 17 states have internal predecessors, (30), 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)
[2023-11-23 15:24:22,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2023-11-23 15:24:22,169 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 15:24:22,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2023-11-23 15:24:22,171 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 15:24:22,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 15:24:22,175 INFO L85 PathProgramCache]: Analyzing trace with hash 112088733, now seen corresponding path program 1 times
[2023-11-23 15:24:22,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 15:24:22,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891786697]
[2023-11-23 15:24:22,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:24:22,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 15:24:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:24:22,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:24:22,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-23 15:24:22,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891786697]
[2023-11-23 15:24:22,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891786697] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 15:24:22,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-23 15:24:22,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-23 15:24:22,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479545394]
[2023-11-23 15:24:22,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 15:24:22,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-23 15:24:22,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-23 15:24:22,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-23 15:24:22,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-23 15:24:22,431 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.875) internal successors, (30), 17 states have internal predecessors, (30), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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)
[2023-11-23 15:24:22,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 15:24:22,489 INFO L93 Difference]: Finished difference Result 26 states and 41 transitions.
[2023-11-23 15:24:22,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-23 15:24:22,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5
[2023-11-23 15:24:22,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 15:24:22,496 INFO L225 Difference]: With dead ends: 26
[2023-11-23 15:24:22,497 INFO L226 Difference]: Without dead ends: 18
[2023-11-23 15:24:22,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-23 15:24:22,501 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-23 15:24:22,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 26 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-23 15:24:22,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2023-11-23 15:24:22,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17.
[2023-11-23 15:24:22,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.6875) internal successors, (27), 16 states have internal predecessors, (27), 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)
[2023-11-23 15:24:22,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 27 transitions.
[2023-11-23 15:24:22,568 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 27 transitions. Word has length 5
[2023-11-23 15:24:22,568 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 15:24:22,569 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 27 transitions.
[2023-11-23 15:24:22,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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)
[2023-11-23 15:24:22,569 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 27 transitions.
[2023-11-23 15:24:22,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2023-11-23 15:24:22,570 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 15:24:22,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 15:24:22,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-23 15:24:22,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 15:24:22,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 15:24:22,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1424693200, now seen corresponding path program 1 times
[2023-11-23 15:24:22,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 15:24:22,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470355343]
[2023-11-23 15:24:22,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:24:22,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 15:24:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:24:22,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:24:22,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-23 15:24:22,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470355343]
[2023-11-23 15:24:22,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470355343] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 15:24:22,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-23 15:24:22,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-23 15:24:22,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075970927]
[2023-11-23 15:24:22,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 15:24:22,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-23 15:24:22,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-23 15:24:22,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-23 15:24:22,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-23 15:24:22,654 INFO L87 Difference]: Start difference. First operand 17 states and 27 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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)
[2023-11-23 15:24:22,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 15:24:22,714 INFO L93 Difference]: Finished difference Result 47 states and 77 transitions.
[2023-11-23 15:24:22,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-23 15:24:22,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) Word has length 16
[2023-11-23 15:24:22,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 15:24:22,715 INFO L225 Difference]: With dead ends: 47
[2023-11-23 15:24:22,715 INFO L226 Difference]: Without dead ends: 32
[2023-11-23 15:24:22,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-23 15:24:22,717 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-23 15:24:22,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 20 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-23 15:24:22,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2023-11-23 15:24:22,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28.
[2023-11-23 15:24:22,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 27 states have internal predecessors, (39), 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)
[2023-11-23 15:24:22,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 39 transitions.
[2023-11-23 15:24:22,726 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 39 transitions. Word has length 16
[2023-11-23 15:24:22,726 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 15:24:22,726 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 39 transitions.
[2023-11-23 15:24:22,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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)
[2023-11-23 15:24:22,726 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions.
[2023-11-23 15:24:22,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2023-11-23 15:24:22,727 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 15:24:22,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 15:24:22,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-23 15:24:22,728 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 15:24:22,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 15:24:22,729 INFO L85 PathProgramCache]: Analyzing trace with hash 202269940, now seen corresponding path program 1 times
[2023-11-23 15:24:22,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 15:24:22,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469972289]
[2023-11-23 15:24:22,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:24:22,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 15:24:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-23 15:24:22,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-23 15:24:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-23 15:24:22,806 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-23 15:24:22,807 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-23 15:24:22,808 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-23 15:24:22,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-23 15:24:22,813 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-11-23 15:24:22,816 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-23 15:24:22,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:24:22 BoogieIcfgContainer
[2023-11-23 15:24:22,837 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-23 15:24:22,838 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-23 15:24:22,838 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-23 15:24:22,838 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-23 15:24:22,838 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:24:22" (3/4) ...
[2023-11-23 15:24:22,839 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2023-11-23 15:24:22,874 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2023-11-23 15:24:22,874 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-23 15:24:22,875 INFO L158 Benchmark]: Toolchain (without parser) took 1341.17ms. Allocated memory is still 153.1MB. Free memory was 85.1MB in the beginning and 103.4MB in the end (delta: -18.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 15:24:22,875 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 15:24:22,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.13ms. Allocated memory is still 153.1MB. Free memory was 85.0MB in the beginning and 74.3MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-23 15:24:22,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.68ms. Allocated memory is still 153.1MB. Free memory was 74.3MB in the beginning and 124.8MB in the end (delta: -50.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB.
[2023-11-23 15:24:22,876 INFO L158 Benchmark]: Boogie Preprocessor took 58.05ms. Allocated memory is still 153.1MB. Free memory was 124.8MB in the beginning and 123.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-23 15:24:22,877 INFO L158 Benchmark]: RCFGBuilder took 263.84ms. Allocated memory is still 153.1MB. Free memory was 123.1MB in the beginning and 111.0MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-11-23 15:24:22,878 INFO L158 Benchmark]: TraceAbstraction took 738.97ms. Allocated memory is still 153.1MB. Free memory was 110.5MB in the beginning and 105.5MB in the end (delta: 4.9MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB.
[2023-11-23 15:24:22,879 INFO L158 Benchmark]: Witness Printer took 36.90ms. Allocated memory is still 153.1MB. Free memory was 105.5MB in the beginning and 103.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-23 15:24:22,880 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 193.13ms. Allocated memory is still 153.1MB. Free memory was 85.0MB in the beginning and 74.3MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 43.68ms. Allocated memory is still 153.1MB. Free memory was 74.3MB in the beginning and 124.8MB in the end (delta: -50.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 58.05ms. Allocated memory is still 153.1MB. Free memory was 124.8MB in the beginning and 123.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 263.84ms. Allocated memory is still 153.1MB. Free memory was 123.1MB in the beginning and 111.0MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 738.97ms. Allocated memory is still 153.1MB. Free memory was 110.5MB in the beginning and 105.5MB in the end (delta: 4.9MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB.
* Witness Printer took 36.90ms. Allocated memory is still 153.1MB. Free memory was 105.5MB in the beginning and 103.4MB 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.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: 8]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L14] unsigned int x = 0;
[L15] unsigned int y = __VERIFIER_nondet_uint();
[L17] COND TRUE x < 99
VAL [x=0]
[L18] COND FALSE !(y % 2 == 0)
[L19] x += 2
VAL [x=2, y=1]
[L21] COND FALSE !(y % 2 == 0)
[L22] x -= 2
VAL [x=0, y=1]
[L24] COND FALSE !(y % 2 == 0)
[L25] x += 2
VAL [x=2, y=1]
[L27] COND FALSE !(y % 2 == 0)
[L28] x -= 2
VAL [x=0, y=1]
[L30] COND FALSE !(y % 2 == 0)
[L31] x += 2
VAL [x=2, y=1]
[L33] COND FALSE !(y % 2 == 0)
[L34] x -= 4
VAL [x=4294967294, y=1]
[L36] COND FALSE !(y % 2 == 0)
[L37] x += 4
VAL [x=2, y=1]
[L39] COND FALSE !(y % 2 == 0)
[L40] x += 2
VAL [x=4, y=1]
[L42] COND FALSE !(y % 2 == 0)
[L43] x -= 4
VAL [x=0, y=1]
[L45] COND FALSE !(y % 2 == 0)
[L46] x -= 4
VAL [x=4294967292, y=1]
[L17] COND FALSE !(x < 99)
VAL [x=4294967292, y=1]
[L49] CALL __VERIFIER_assert((x % 2) == (y % 2))
[L7] COND TRUE !(cond)
VAL [\old(cond)=0, cond=0]
[L8] reach_error()
VAL [\old(cond)=0, cond=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 39 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 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 15:24:22,909 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