./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_05_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/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_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_05_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/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_a54717f3-5b40-4436-8e5f-dc419b4d20cb/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 d7a54320afe5e84b54912feba47561a57a8d4c74bd3349c64b2c951f84395553
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 16:51:53,483 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 16:51:53,549 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-11-08 16:51:53,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 16:51:53,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 16:51:53,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 16:51:53,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 16:51:53,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 16:51:53,581 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 16:51:53,582 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 16:51:53,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 16:51:53,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 16:51:53,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 16:51:53,585 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 16:51:53,585 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 16:51:53,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 16:51:53,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 16:51:53,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 16:51:53,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 16:51:53,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 16:51:53,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 16:51:53,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 16:51:53,589 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 16:51:53,590 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-08 16:51:53,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 16:51:53,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 16:51:53,591 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 16:51:53,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 16:51:53,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 16:51:53,593 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 16:51:53,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 16:51:53,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 16:51:53,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 16:51:53,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 16:51:53,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 16:51:53,595 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 16:51:53,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 16:51:53,596 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 16:51:53,597 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 16:51:53,597 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 16:51:53,597 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 16:51:53,598 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_a54717f3-5b40-4436-8e5f-dc419b4d20cb/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7a54320afe5e84b54912feba47561a57a8d4c74bd3349c64b2c951f84395553
[2024-11-08 16:51:53,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 16:51:53,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 16:51:53,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 16:51:53,989 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 16:51:53,990 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 16:51:53,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_05_bad.i
Unable to find full path for "g++"
[2024-11-08 16:51:56,296 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 16:51:56,747 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 16:51:56,751 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_05_bad.i
[2024-11-08 16:51:56,781 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/data/529cafebf/2f19e279ad2c4aacaf49329b19342b7b/FLAG2111e8a71
[2024-11-08 16:51:56,815 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/data/529cafebf/2f19e279ad2c4aacaf49329b19342b7b
[2024-11-08 16:51:56,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 16:51:56,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 16:51:56,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 16:51:56,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 16:51:56,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 16:51:56,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:51:56" (1/1) ...
[2024-11-08 16:51:56,839 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345bca43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:56, skipping insertion in model container
[2024-11-08 16:51:56,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:51:56" (1/1) ...
[2024-11-08 16:51:56,926 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 16:51:58,351 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 16:51:58,370 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 16:51:58,470 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 16:51:58,615 INFO L204 MainTranslator]: Completed translation
[2024-11-08 16:51:58,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58 WrapperNode
[2024-11-08 16:51:58,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 16:51:58,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 16:51:58,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 16:51:58,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 16:51:58,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58" (1/1) ...
[2024-11-08 16:51:58,652 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58" (1/1) ...
[2024-11-08 16:51:58,684 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71
[2024-11-08 16:51:58,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 16:51:58,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 16:51:58,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 16:51:58,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 16:51:58,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58" (1/1) ...
[2024-11-08 16:51:58,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58" (1/1) ...
[2024-11-08 16:51:58,705 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58" (1/1) ...
[2024-11-08 16:51:58,726 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0].
[2024-11-08 16:51:58,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58" (1/1) ...
[2024-11-08 16:51:58,727 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58" (1/1) ...
[2024-11-08 16:51:58,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58" (1/1) ...
[2024-11-08 16:51:58,742 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58" (1/1) ...
[2024-11-08 16:51:58,746 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58" (1/1) ...
[2024-11-08 16:51:58,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58" (1/1) ...
[2024-11-08 16:51:58,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 16:51:58,755 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 16:51:58,755 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 16:51:58,755 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 16:51:58,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58" (1/1) ...
[2024-11-08 16:51:58,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 16:51:58,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:51:58,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 16:51:58,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 16:51:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-11-08 16:51:58,848 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-11-08 16:51:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 16:51:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 16:51:58,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 16:51:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 16:51:59,029 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 16:51:59,032 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 16:51:59,221 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live.
[2024-11-08 16:51:59,221 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 16:51:59,243 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 16:51:59,248 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 16:51:59,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:51:59 BoogieIcfgContainer
[2024-11-08 16:51:59,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 16:51:59,253 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 16:51:59,254 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 16:51:59,259 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 16:51:59,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:51:56" (1/3) ...
[2024-11-08 16:51:59,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245f4563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:51:59, skipping insertion in model container
[2024-11-08 16:51:59,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:58" (2/3) ...
[2024-11-08 16:51:59,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245f4563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:51:59, skipping insertion in model container
[2024-11-08 16:51:59,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:51:59" (3/3) ...
[2024-11-08 16:51:59,264 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_05_bad.i
[2024-11-08 16:51:59,285 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 16:51:59,285 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-08 16:51:59,362 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 16:51:59,371 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;@2ca2bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 16:51:59,372 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-08 16:51:59,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 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)
[2024-11-08 16:51:59,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-08 16:51:59,389 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:51:59,390 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:51:59,391 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-08 16:51:59,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:51:59,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1958583963, now seen corresponding path program 1 times
[2024-11-08 16:51:59,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:51:59,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336493258]
[2024-11-08 16:51:59,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:51:59,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:51:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:51:59,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:51:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:51:59,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 16:51:59,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:51:59,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336493258]
[2024-11-08 16:51:59,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336493258] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:51:59,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:51:59,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 16:51:59,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492343169]
[2024-11-08 16:51:59,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:51:59,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 16:51:59,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:51:59,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 16:51:59,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 16:51:59,939 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 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 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 16:51:59,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:51:59,983 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions.
[2024-11-08 16:51:59,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 16:51:59,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11
[2024-11-08 16:51:59,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:51:59,997 INFO L225 Difference]: With dead ends: 41
[2024-11-08 16:51:59,998 INFO L226 Difference]: Without dead ends: 18
[2024-11-08 16:52:00,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 16:52:00,008 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:52:00,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 26 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:52:00,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2024-11-08 16:52:00,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2024-11-08 16:52:00,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:52:00,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions.
[2024-11-08 16:52:00,048 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11
[2024-11-08 16:52:00,049 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:52:00,050 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions.
[2024-11-08 16:52:00,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 16:52:00,050 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions.
[2024-11-08 16:52:00,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-08 16:52:00,052 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:52:00,052 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:52:00,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 16:52:00,053 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-08 16:52:00,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:52:00,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1014034784, now seen corresponding path program 1 times
[2024-11-08 16:52:00,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:52:00,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113526892]
[2024-11-08 16:52:00,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:52:00,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:52:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 16:52:00,132 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 16:52:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 16:52:00,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 16:52:00,211 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 16:52:00,214 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-11-08 16:52:00,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-11-08 16:52:00,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 16:52:00,223 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-08 16:52:00,259 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 16:52:00,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:52:00 BoogieIcfgContainer
[2024-11-08 16:52:00,268 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 16:52:00,269 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 16:52:00,270 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 16:52:00,270 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 16:52:00,271 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:51:59" (3/4) ...
[2024-11-08 16:52:00,276 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-08 16:52:00,278 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 16:52:00,280 INFO L158 Benchmark]: Toolchain (without parser) took 3457.41ms. Allocated memory is still 151.0MB. Free memory was 111.2MB in the beginning and 91.6MB in the end (delta: 19.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB.
[2024-11-08 16:52:00,282 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 102.8MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 16:52:00,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1791.01ms. Allocated memory is still 151.0MB. Free memory was 110.5MB in the beginning and 67.5MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB.
[2024-11-08 16:52:00,283 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.85ms. Allocated memory is still 151.0MB. Free memory was 67.5MB in the beginning and 64.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 16:52:00,283 INFO L158 Benchmark]: Boogie Preprocessor took 67.84ms. Allocated memory is still 151.0MB. Free memory was 64.7MB in the beginning and 62.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 16:52:00,287 INFO L158 Benchmark]: RCFGBuilder took 494.49ms. Allocated memory is still 151.0MB. Free memory was 62.6MB in the beginning and 48.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2024-11-08 16:52:00,288 INFO L158 Benchmark]: TraceAbstraction took 1014.98ms. Allocated memory is still 151.0MB. Free memory was 48.0MB in the beginning and 92.5MB in the end (delta: -44.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 16:52:00,289 INFO L158 Benchmark]: Witness Printer took 8.80ms. Allocated memory is still 151.0MB. Free memory was 92.5MB in the beginning and 91.6MB in the end (delta: 878.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 16:52:00,296 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.36ms. Allocated memory is still 102.8MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1791.01ms. Allocated memory is still 151.0MB. Free memory was 110.5MB in the beginning and 67.5MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 68.85ms. Allocated memory is still 151.0MB. Free memory was 67.5MB in the beginning and 64.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 67.84ms. Allocated memory is still 151.0MB. Free memory was 64.7MB in the beginning and 62.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 494.49ms. Allocated memory is still 151.0MB. Free memory was 62.6MB in the beginning and 48.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 1014.98ms. Allocated memory is still 151.0MB. Free memory was 48.0MB in the beginning and 92.5MB in the end (delta: -44.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 8.80ms. Allocated memory is still 151.0MB. Free memory was 92.5MB in the beginning and 91.6MB in the end (delta: 878.9kB). There was no memory consumed. 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
- UnprovableResult [Line: 1571]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1580, overapproximation of fgets at line 1558.
Possible FailurePath:
[L1522] const int GLOBAL_CONST_TRUE = 1;
[L1523] const int GLOBAL_CONST_FALSE = 0;
[L1524] const int GLOBAL_CONST_FIVE = 5;
[L1525] int globalTrue = 1;
[L1526] int globalFalse = 0;
[L1527] int globalFive = 5;
[L1546] int globalArgc = 0;
[L1547] char** globalArgv = ((void *)0);
[L1548] static int staticTrue = 1;
[L1549] static int staticFalse = 0;
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1]
[L1580] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1]
[L1414] COND TRUE line != ((void *)0)
[L1580] RET printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1]
[L1581] CALL CWE191_Integer_Underflow__int_fgets_postdec_05_bad()
[L1552] int data;
[L1553] data = 0
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1]
[L1554] COND TRUE \read(staticTrue)
[L1557] char inputBuffer[(3 * sizeof(data) + 2)] = "";
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1]
[L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1560] data = atoi(inputBuffer)
[L1568] COND TRUE \read(staticTrue)
[L1571] data--
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1]
- UnprovableResult [Line: 1571]: 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 2 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 26 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: unable to determine feasibility of some traces
[2024-11-08 16:52:00,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/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_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_05_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/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 d7a54320afe5e84b54912feba47561a57a8d4c74bd3349c64b2c951f84395553
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 16:52:03,505 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 16:52:03,638 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2024-11-08 16:52:03,645 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 16:52:03,645 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 16:52:03,646 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2024-11-08 16:52:03,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 16:52:03,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 16:52:03,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 16:52:03,678 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 16:52:03,679 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 16:52:03,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 16:52:03,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 16:52:03,684 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 16:52:03,685 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 16:52:03,685 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 16:52:03,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 16:52:03,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 16:52:03,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 16:52:03,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 16:52:03,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 16:52:03,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 16:52:03,694 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 16:52:03,695 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-08 16:52:03,695 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 16:52:03,695 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-08 16:52:03,696 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-08 16:52:03,696 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 16:52:03,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 16:52:03,697 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 16:52:03,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 16:52:03,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 16:52:03,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 16:52:03,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 16:52:03,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 16:52:03,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 16:52:03,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 16:52:03,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 16:52:03,700 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-08 16:52:03,700 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-08 16:52:03,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 16:52:03,702 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 16:52:03,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 16:52:03,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 16:52:03,703 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_a54717f3-5b40-4436-8e5f-dc419b4d20cb/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7a54320afe5e84b54912feba47561a57a8d4c74bd3349c64b2c951f84395553
[2024-11-08 16:52:04,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 16:52:04,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 16:52:04,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 16:52:04,269 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 16:52:04,270 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 16:52:04,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_05_bad.i
Unable to find full path for "g++"
[2024-11-08 16:52:06,490 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 16:52:06,936 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 16:52:06,936 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_05_bad.i
[2024-11-08 16:52:06,969 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/data/f23a663a2/f4ef826dc9b64faea388aa4f02dcd263/FLAG8143e7fdd
[2024-11-08 16:52:06,990 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/data/f23a663a2/f4ef826dc9b64faea388aa4f02dcd263
[2024-11-08 16:52:06,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 16:52:06,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 16:52:06,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 16:52:06,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 16:52:07,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 16:52:07,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:52:06" (1/1) ...
[2024-11-08 16:52:07,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45309a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:07, skipping insertion in model container
[2024-11-08 16:52:07,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:52:06" (1/1) ...
[2024-11-08 16:52:07,085 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 16:52:08,097 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 16:52:08,110 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 16:52:08,240 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 16:52:08,381 INFO L204 MainTranslator]: Completed translation
[2024-11-08 16:52:08,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08 WrapperNode
[2024-11-08 16:52:08,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 16:52:08,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 16:52:08,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 16:52:08,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 16:52:08,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ...
[2024-11-08 16:52:08,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ...
[2024-11-08 16:52:08,449 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70
[2024-11-08 16:52:08,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 16:52:08,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 16:52:08,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 16:52:08,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 16:52:08,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ...
[2024-11-08 16:52:08,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ...
[2024-11-08 16:52:08,466 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ...
[2024-11-08 16:52:08,495 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0].
[2024-11-08 16:52:08,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ...
[2024-11-08 16:52:08,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ...
[2024-11-08 16:52:08,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ...
[2024-11-08 16:52:08,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ...
[2024-11-08 16:52:08,509 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ...
[2024-11-08 16:52:08,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ...
[2024-11-08 16:52:08,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 16:52:08,515 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 16:52:08,515 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 16:52:08,515 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 16:52:08,516 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ...
[2024-11-08 16:52:08,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 16:52:08,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:52:08,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 16:52:08,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 16:52:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-11-08 16:52:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-11-08 16:52:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-08 16:52:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 16:52:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 16:52:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 16:52:08,754 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 16:52:08,757 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 16:52:08,965 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-08 16:52:08,965 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 16:52:08,983 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 16:52:08,983 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 16:52:08,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:52:08 BoogieIcfgContainer
[2024-11-08 16:52:08,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 16:52:08,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 16:52:08,986 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 16:52:08,990 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 16:52:08,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:52:06" (1/3) ...
[2024-11-08 16:52:08,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cbdd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:52:08, skipping insertion in model container
[2024-11-08 16:52:08,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (2/3) ...
[2024-11-08 16:52:08,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cbdd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:52:08, skipping insertion in model container
[2024-11-08 16:52:08,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:52:08" (3/3) ...
[2024-11-08 16:52:08,995 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_05_bad.i
[2024-11-08 16:52:09,012 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 16:52:09,013 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-08 16:52:09,094 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 16:52:09,100 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;@51b86aed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 16:52:09,100 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-08 16:52:09,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 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)
[2024-11-08 16:52:09,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-08 16:52:09,114 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:52:09,114 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:52:09,115 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-08 16:52:09,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:52:09,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1958583963, now seen corresponding path program 1 times
[2024-11-08 16:52:09,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 16:52:09,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2062189823]
[2024-11-08 16:52:09,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:52:09,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:52:09,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:52:09,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:52:09,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 16:52:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:52:09,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-08 16:52:09,279 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:52:09,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 16:52:09,345 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:52:09,346 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 16:52:09,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062189823]
[2024-11-08 16:52:09,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062189823] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:52:09,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:52:09,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 16:52:09,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692424281]
[2024-11-08 16:52:09,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:52:09,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 16:52:09,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 16:52:09,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 16:52:09,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 16:52:09,382 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 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 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 16:52:09,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:52:09,434 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions.
[2024-11-08 16:52:09,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 16:52:09,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11
[2024-11-08 16:52:09,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:52:09,445 INFO L225 Difference]: With dead ends: 50
[2024-11-08 16:52:09,445 INFO L226 Difference]: Without dead ends: 16
[2024-11-08 16:52:09,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 16:52:09,455 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 11 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:52:09,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 56 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:52:09,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2024-11-08 16:52:09,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2024-11-08 16:52:09,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:52:09,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions.
[2024-11-08 16:52:09,504 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 11
[2024-11-08 16:52:09,506 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:52:09,506 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions.
[2024-11-08 16:52:09,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 16:52:09,507 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions.
[2024-11-08 16:52:09,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-08 16:52:09,508 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:52:09,509 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:52:09,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 16:52:09,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:52:09,714 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-08 16:52:09,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:52:09,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1014034784, now seen corresponding path program 1 times
[2024-11-08 16:52:09,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 16:52:09,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286611577]
[2024-11-08 16:52:09,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:52:09,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:52:09,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:52:09,719 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:52:09,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 16:52:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 16:52:09,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 16:52:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 16:52:09,940 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace
[2024-11-08 16:52:09,940 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 16:52:09,947 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-11-08 16:52:09,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-11-08 16:52:09,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-08 16:52:10,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:52:10,159 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-08 16:52:10,203 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 16:52:10,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:52:10 BoogieIcfgContainer
[2024-11-08 16:52:10,210 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 16:52:10,212 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 16:52:10,212 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 16:52:10,212 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 16:52:10,213 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:52:08" (3/4) ...
[2024-11-08 16:52:10,218 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-08 16:52:10,220 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 16:52:10,221 INFO L158 Benchmark]: Toolchain (without parser) took 3226.48ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 53.9MB in the beginning and 57.1MB in the end (delta: -3.2MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB.
[2024-11-08 16:52:10,222 INFO L158 Benchmark]: CDTParser took 1.71ms. Allocated memory is still 79.7MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 16:52:10,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1387.01ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 53.9MB in the beginning and 54.7MB in the end (delta: -817.2kB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB.
[2024-11-08 16:52:10,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.08ms. Allocated memory is still 107.0MB. Free memory was 54.7MB in the beginning and 51.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 16:52:10,228 INFO L158 Benchmark]: Boogie Preprocessor took 64.48ms. Allocated memory is still 107.0MB. Free memory was 51.7MB in the beginning and 77.1MB in the end (delta: -25.3MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB.
[2024-11-08 16:52:10,229 INFO L158 Benchmark]: RCFGBuilder took 468.71ms. Allocated memory is still 107.0MB. Free memory was 77.1MB in the beginning and 61.9MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-08 16:52:10,229 INFO L158 Benchmark]: TraceAbstraction took 1225.26ms. Allocated memory is still 107.0MB. Free memory was 61.3MB in the beginning and 57.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB.
[2024-11-08 16:52:10,230 INFO L158 Benchmark]: Witness Printer took 8.46ms. Allocated memory is still 107.0MB. Free memory was 57.7MB in the beginning and 57.1MB in the end (delta: 596.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 16:52:10,237 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.71ms. Allocated memory is still 79.7MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1387.01ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 53.9MB in the beginning and 54.7MB in the end (delta: -817.2kB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 66.08ms. Allocated memory is still 107.0MB. Free memory was 54.7MB in the beginning and 51.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 64.48ms. Allocated memory is still 107.0MB. Free memory was 51.7MB in the beginning and 77.1MB in the end (delta: -25.3MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 468.71ms. Allocated memory is still 107.0MB. Free memory was 77.1MB in the beginning and 61.9MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 1225.26ms. Allocated memory is still 107.0MB. Free memory was 61.3MB in the beginning and 57.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB.
* Witness Printer took 8.46ms. Allocated memory is still 107.0MB. Free memory was 57.7MB in the beginning and 57.1MB in the end (delta: 596.1kB). There was no memory consumed. 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
- UnprovableResult [Line: 1571]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1580, overapproximation of fgets at line 1558.
Possible FailurePath:
[L1522] const int GLOBAL_CONST_TRUE = 1;
[L1523] const int GLOBAL_CONST_FALSE = 0;
[L1524] const int GLOBAL_CONST_FIVE = 5;
[L1525] int globalTrue = 1;
[L1526] int globalFalse = 0;
[L1527] int globalFive = 5;
[L1546] int globalArgc = 0;
[L1547] char** globalArgv = ((void *)0);
[L1548] static int staticTrue = 1;
[L1549] static int staticFalse = 0;
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1]
[L1580] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1]
[L1414] COND TRUE line != ((void *)0)
[L1580] RET printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1]
[L1581] CALL CWE191_Integer_Underflow__int_fgets_postdec_05_bad()
[L1552] int data;
[L1553] data = 0
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1]
[L1554] COND TRUE \read(staticTrue)
[L1557] char inputBuffer[(3 * sizeof(data) + 2)] = "";
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1]
[L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1560] data = atoi(inputBuffer)
[L1568] COND TRUE \read(staticTrue)
[L1571] data--
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1]
- UnprovableResult [Line: 1571]: 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 2 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 32 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: unable to determine feasibility of some traces
[2024-11-08 16:52:10,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a54717f3-5b40-4436-8e5f-dc419b4d20cb/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
Result:
UNKNOWN: Overapproximated counterexample