./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixDecrement.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixDecrement.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8bdb977ff214625ad8e508f43c66811f5e3cd7c697d49c33523a8c57afa53f24
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 16:19:32,701 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 16:19:32,812 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-11-08 16:19:32,818 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 16:19:32,819 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 16:19:32,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 16:19:32,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 16:19:32,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 16:19:32,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 16:19:32,852 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 16:19:32,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 16:19:32,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 16:19:32,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 16:19:32,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 16:19:32,855 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 16:19:32,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 16:19:32,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 16:19:32,857 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 16:19:32,858 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 16:19:32,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 16:19:32,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 16:19:32,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 16:19:32,860 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 16:19:32,861 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-08 16:19:32,861 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 16:19:32,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 16:19:32,862 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 16:19:32,863 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 16:19:32,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 16:19:32,864 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 16:19:32,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 16:19:32,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 16:19:32,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 16:19:32,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 16:19:32,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 16:19:32,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 16:19:32,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 16:19:32,868 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 16:19:32,869 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 16:19:32,870 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 16:19:32,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 16:19:32,874 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bdb977ff214625ad8e508f43c66811f5e3cd7c697d49c33523a8c57afa53f24
[2024-11-08 16:19:33,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 16:19:33,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 16:19:33,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 16:19:33,228 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 16:19:33,229 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 16:19:33,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixDecrement.i
Unable to find full path for "g++"
[2024-11-08 16:19:35,609 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 16:19:35,918 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 16:19:35,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/sv-benchmarks/c/signedintegeroverflow-regression/PrefixDecrement.i
[2024-11-08 16:19:35,933 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/data/e1a5940f6/23dbf2a55b3c4f6091d23c7231c3cdfb/FLAGe5054e425
[2024-11-08 16:19:35,957 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/data/e1a5940f6/23dbf2a55b3c4f6091d23c7231c3cdfb
[2024-11-08 16:19:35,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 16:19:35,962 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 16:19:35,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 16:19:35,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 16:19:35,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 16:19:35,976 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:19:35" (1/1) ...
[2024-11-08 16:19:35,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f36eaa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:35, skipping insertion in model container
[2024-11-08 16:19:35,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:19:35" (1/1) ...
[2024-11-08 16:19:36,027 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 16:19:36,496 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 16:19:36,503 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 16:19:36,545 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 16:19:36,583 INFO L204 MainTranslator]: Completed translation
[2024-11-08 16:19:36,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36 WrapperNode
[2024-11-08 16:19:36,585 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 16:19:36,586 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 16:19:36,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 16:19:36,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 16:19:36,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36" (1/1) ...
[2024-11-08 16:19:36,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36" (1/1) ...
[2024-11-08 16:19:36,628 INFO L138 Inliner]: procedures = 104, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12
[2024-11-08 16:19:36,628 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 16:19:36,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 16:19:36,630 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 16:19:36,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 16:19:36,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36" (1/1) ...
[2024-11-08 16:19:36,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36" (1/1) ...
[2024-11-08 16:19:36,648 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36" (1/1) ...
[2024-11-08 16:19:36,655 INFO L175 MemorySlicer]: No memory access in input program.
[2024-11-08 16:19:36,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36" (1/1) ...
[2024-11-08 16:19:36,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36" (1/1) ...
[2024-11-08 16:19:36,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36" (1/1) ...
[2024-11-08 16:19:36,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36" (1/1) ...
[2024-11-08 16:19:36,661 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36" (1/1) ...
[2024-11-08 16:19:36,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36" (1/1) ...
[2024-11-08 16:19:36,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 16:19:36,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 16:19:36,666 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 16:19:36,666 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 16:19:36,667 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36" (1/1) ...
[2024-11-08 16:19:36,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 16:19:36,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:19:36,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 16:19:36,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 16:19:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 16:19:36,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 16:19:36,853 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 16:19:36,855 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 16:19:36,959 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live.
[2024-11-08 16:19:36,959 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 16:19:36,973 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 16:19:36,974 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 16:19:36,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:19:36 BoogieIcfgContainer
[2024-11-08 16:19:36,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 16:19:36,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 16:19:36,979 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 16:19:36,984 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 16:19:36,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:19:35" (1/3) ...
[2024-11-08 16:19:36,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c37d97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:19:36, skipping insertion in model container
[2024-11-08 16:19:36,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:36" (2/3) ...
[2024-11-08 16:19:36,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c37d97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:19:36, skipping insertion in model container
[2024-11-08 16:19:36,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:19:36" (3/3) ...
[2024-11-08 16:19:36,988 INFO L112 eAbstractionObserver]: Analyzing ICFG PrefixDecrement.i
[2024-11-08 16:19:37,023 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 16:19:37,024 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-08 16:19:37,106 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 16:19:37,112 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@63afc703, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 16:19:37,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-08 16:19:37,118 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 16:19:37,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-11-08 16:19:37,125 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:19:37,126 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-11-08 16:19:37,126 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-08 16:19:37,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:19:37,134 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times
[2024-11-08 16:19:37,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:19:37,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710202529]
[2024-11-08 16:19:37,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:19:37,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:19:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 16:19:37,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 16:19:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 16:19:37,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 16:19:37,320 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 16:19:37,323 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-11-08 16:19:37,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-11-08 16:19:37,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 16:19:37,335 INFO L407 BasicCegarLoop]: Path program histogram: [1]
[2024-11-08 16:19:37,376 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 16:19:37,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:19:37 BoogieIcfgContainer
[2024-11-08 16:19:37,380 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 16:19:37,381 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 16:19:37,381 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 16:19:37,381 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 16:19:37,384 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:19:36" (3/4) ...
[2024-11-08 16:19:37,386 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample
[2024-11-08 16:19:37,427 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/witness.graphml
[2024-11-08 16:19:37,427 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 16:19:37,430 INFO L158 Benchmark]: Toolchain (without parser) took 1466.58ms. Allocated memory is still 144.7MB. Free memory was 115.2MB in the beginning and 114.9MB in the end (delta: 369.3kB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB.
[2024-11-08 16:19:37,431 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 107.0MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 16:19:37,431 INFO L158 Benchmark]: CACSL2BoogieTranslator took 621.59ms. Allocated memory is still 144.7MB. Free memory was 114.9MB in the beginning and 98.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-08 16:19:37,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.27ms. Allocated memory is still 144.7MB. Free memory was 98.5MB in the beginning and 96.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 16:19:37,434 INFO L158 Benchmark]: Boogie Preprocessor took 35.20ms. Allocated memory is still 144.7MB. Free memory was 96.8MB in the beginning and 95.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 16:19:37,434 INFO L158 Benchmark]: RCFGBuilder took 309.51ms. Allocated memory is still 144.7MB. Free memory was 95.2MB in the beginning and 86.7MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-08 16:19:37,436 INFO L158 Benchmark]: TraceAbstraction took 401.89ms. Allocated memory is still 144.7MB. Free memory was 85.9MB in the beginning and 116.3MB in the end (delta: -30.4MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB.
[2024-11-08 16:19:37,437 INFO L158 Benchmark]: Witness Printer took 46.40ms. Allocated memory is still 144.7MB. Free memory was 116.3MB in the beginning and 114.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 16:19:37,444 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.38ms. Allocated memory is still 107.0MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 621.59ms. Allocated memory is still 144.7MB. Free memory was 114.9MB in the beginning and 98.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 42.27ms. Allocated memory is still 144.7MB. Free memory was 98.5MB in the beginning and 96.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 35.20ms. Allocated memory is still 144.7MB. Free memory was 96.8MB in the beginning and 95.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 309.51ms. Allocated memory is still 144.7MB. Free memory was 95.2MB in the beginning and 86.7MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 401.89ms. Allocated memory is still 144.7MB. Free memory was 85.9MB in the beginning and 116.3MB in the end (delta: -30.4MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB.
* Witness Printer took 46.40ms. Allocated memory is still 144.7MB. Free memory was 116.3MB in the beginning and 114.9MB in the end (delta: 1.4MB). 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: 333]: integer overflow possible
integer overflow possible
We found a FailurePath:
[L332] int x = -2147483647 - 1;
VAL [x=-2147483648]
[L333] --x
- UnprovableResult [Line: 333]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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!
[2024-11-08 16:19:37,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e27d4d6-d49a-4bbb-9bf3-40185de7ba36/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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(OVERFLOW)