./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i --full-output --architecture 64bit


--------------------------------------------------------------------------------


Checking for overflows
Using default analysis
Version 4e7fbc69
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_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )

 --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-4e7fbc6
[2022-11-23 14:11:00,840 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-23 14:11:00,842 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-23 14:11:00,870 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-23 14:11:00,877 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-23 14:11:00,881 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-23 14:11:00,884 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-23 14:11:00,885 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-23 14:11:00,887 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-23 14:11:00,888 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-23 14:11:00,889 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-23 14:11:00,890 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-23 14:11:00,890 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-23 14:11:00,891 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-23 14:11:00,893 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-23 14:11:00,894 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-23 14:11:00,899 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-23 14:11:00,907 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-23 14:11:00,911 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-23 14:11:00,917 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-23 14:11:00,919 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-23 14:11:00,923 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-23 14:11:00,924 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-23 14:11:00,925 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-23 14:11:00,929 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-23 14:11:00,929 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-23 14:11:00,930 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-23 14:11:00,931 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-23 14:11:00,931 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-23 14:11:00,932 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-23 14:11:00,932 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-23 14:11:00,933 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-23 14:11:00,934 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-23 14:11:00,938 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-23 14:11:00,940 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-23 14:11:00,940 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-23 14:11:00,941 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-23 14:11:00,941 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-23 14:11:00,941 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-23 14:11:00,946 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-23 14:11:00,946 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-23 14:11:00,947 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf
[2022-11-23 14:11:00,993 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-23 14:11:00,994 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-23 14:11:00,994 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-23 14:11:00,994 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-23 14:11:00,995 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-23 14:11:00,996 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-23 14:11:00,996 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-11-23 14:11:00,996 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-11-23 14:11:00,996 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-11-23 14:11:00,997 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-11-23 14:11:00,998 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-11-23 14:11:00,998 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-11-23 14:11:00,998 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2022-11-23 14:11:00,998 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2022-11-23 14:11:00,998 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-11-23 14:11:00,999 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-11-23 14:11:00,999 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2022-11-23 14:11:00,999 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2022-11-23 14:11:01,000 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-23 14:11:01,001 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-11-23 14:11:01,001 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-11-23 14:11:01,001 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-23 14:11:01,001 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-11-23 14:11:01,001 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-23 14:11:01,002 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-11-23 14:11:01,002 INFO  L138        SettingsManager]:  * Check absence of signed integer overflows=true
[2022-11-23 14:11:01,002 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-11-23 14:11:01,002 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-23 14:11:01,003 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-11-23 14:11:01,003 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-23 14:11:01,003 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-23 14:11:01,004 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 14:11:01,004 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-23 14:11:01,004 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2022-11-23 14:11:01,004 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-23 14:11:01,004 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-23 14:11:01,005 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2022-11-23 14:11:01,005 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-23 14:11:01,005 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-23 14:11:01,005 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-11-23 14:11:01,006 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
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_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/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_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
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 -> Taipan
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 -> 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a
[2022-11-23 14:11:01,292 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-23 14:11:01,324 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-23 14:11:01,326 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-23 14:11:01,328 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-23 14:11:01,328 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-23 14:11:01,330 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i
[2022-11-23 14:11:04,334 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-11-23 14:11:04,772 INFO  L351              CDTParser]: Found 1 translation units.
[2022-11-23 14:11:04,773 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i
[2022-11-23 14:11:04,798 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/data/9419b7bd6/75ee70a50a43482e9f9d299e22c85c9b/FLAGdbb5d7582
[2022-11-23 14:11:04,831 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/data/9419b7bd6/75ee70a50a43482e9f9d299e22c85c9b
[2022-11-23 14:11:04,836 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-23 14:11:04,838 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-23 14:11:04,844 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-23 14:11:04,844 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-23 14:11:04,848 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-23 14:11:04,849 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:11:04" (1/1) ...
[2022-11-23 14:11:04,850 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@453dcc21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:04, skipping insertion in model container
[2022-11-23 14:11:04,850 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:11:04" (1/1) ...
[2022-11-23 14:11:04,859 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-23 14:11:04,923 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-23 14:11:05,435 WARN  L611        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2022-11-23 14:11:06,067 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-23 14:11:06,082 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-23 14:11:06,115 WARN  L611        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2022-11-23 14:11:06,218 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-23 14:11:06,347 INFO  L208         MainTranslator]: Completed translation
[2022-11-23 14:11:06,347 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:06 WrapperNode
[2022-11-23 14:11:06,347 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-23 14:11:06,349 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-23 14:11:06,349 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-23 14:11:06,349 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-23 14:11:06,356 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:06" (1/1) ...
[2022-11-23 14:11:06,379 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:06" (1/1) ...
[2022-11-23 14:11:06,402 INFO  L138                Inliner]: procedures = 503, calls = 65, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 60
[2022-11-23 14:11:06,402 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-23 14:11:06,403 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-23 14:11:06,403 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-23 14:11:06,404 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-23 14:11:06,413 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:06" (1/1) ...
[2022-11-23 14:11:06,414 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:06" (1/1) ...
[2022-11-23 14:11:06,416 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:06" (1/1) ...
[2022-11-23 14:11:06,417 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:06" (1/1) ...
[2022-11-23 14:11:06,423 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:06" (1/1) ...
[2022-11-23 14:11:06,424 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:06" (1/1) ...
[2022-11-23 14:11:06,426 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:06" (1/1) ...
[2022-11-23 14:11:06,427 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:06" (1/1) ...
[2022-11-23 14:11:06,430 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-23 14:11:06,431 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-23 14:11:06,431 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-23 14:11:06,431 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-23 14:11:06,432 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:06" (1/1) ...
[2022-11-23 14:11:06,444 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 14:11:06,462 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 14:11:06,479 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-23 14:11:06,504 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-23 14:11:06,524 INFO  L130     BoogieDeclarations]: Found specification of procedure fgets
[2022-11-23 14:11:06,524 INFO  L130     BoogieDeclarations]: Found specification of procedure printLine
[2022-11-23 14:11:06,524 INFO  L138     BoogieDeclarations]: Found implementation of procedure printLine
[2022-11-23 14:11:06,524 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-23 14:11:06,525 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2022-11-23 14:11:06,525 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-23 14:11:06,525 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-23 14:11:06,525 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-23 14:11:06,525 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-23 14:11:06,525 INFO  L130     BoogieDeclarations]: Found specification of procedure time
[2022-11-23 14:11:06,525 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-23 14:11:06,720 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-23 14:11:06,722 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-23 14:11:06,957 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-23 14:11:07,024 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-23 14:11:07,024 INFO  L300             CfgBuilder]: Removed 0 assume(true) statements.
[2022-11-23 14:11:07,027 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:07 BoogieIcfgContainer
[2022-11-23 14:11:07,027 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-23 14:11:07,029 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-23 14:11:07,029 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-23 14:11:07,032 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-23 14:11:07,033 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:11:04" (1/3) ...
[2022-11-23 14:11:07,033 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b1e32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:07, skipping insertion in model container
[2022-11-23 14:11:07,034 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:06" (2/3) ...
[2022-11-23 14:11:07,034 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b1e32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:07, skipping insertion in model container
[2022-11-23 14:11:07,034 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:07" (3/3) ...
[2022-11-23 14:11:07,035 INFO  L112   eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i
[2022-11-23 14:11:07,059 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-23 14:11:07,059 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-23 14:11:07,124 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-23 14:11:07,132 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@1a8228b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-23 14:11:07,132 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-23 14:11:07,137 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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)
[2022-11-23 14:11:07,146 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2022-11-23 14:11:07,147 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-23 14:11:07,148 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 14:11:07,148 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2022-11-23 14:11:07,155 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 14:11:07,156 INFO  L85        PathProgramCache]: Analyzing trace with hash -2079372692, now seen corresponding path program 1 times
[2022-11-23 14:11:07,167 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 14:11:07,168 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353423760]
[2022-11-23 14:11:07,168 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:11:07,168 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 14:11:07,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-23 14:11:07,294 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-23 14:11:07,319 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-23 14:11:07,347 INFO  L130   FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2022-11-23 14:11:07,350 INFO  L359         BasicCegarLoop]: Counterexample is feasible
[2022-11-23 14:11:07,352 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2022-11-23 14:11:07,354 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2022-11-23 14:11:07,355 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-23 14:11:07,363 INFO  L444         BasicCegarLoop]: Path program histogram: [1]
[2022-11-23 14:11:07,369 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2022-11-23 14:11:07,412 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:11:07 BoogieIcfgContainer
[2022-11-23 14:11:07,412 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-23 14:11:07,414 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-23 14:11:07,414 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2022-11-23 14:11:07,415 INFO  L275        PluginConnector]: Witness Printer initialized
[2022-11-23 14:11:07,415 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:07" (3/4) ...
[2022-11-23 14:11:07,419 INFO  L140         WitnessPrinter]: No result that supports witness generation found
[2022-11-23 14:11:07,419 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-23 14:11:07,421 INFO  L158              Benchmark]: Toolchain (without parser) took 2582.63ms. Allocated memory is still 178.3MB. Free memory was 141.0MB in the beginning and 126.7MB in the end (delta: 14.4MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB.
[2022-11-23 14:11:07,421 INFO  L158              Benchmark]: CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory was 68.2MB in the beginning and 68.1MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-23 14:11:07,422 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1504.23ms. Allocated memory is still 178.3MB. Free memory was 141.0MB in the beginning and 79.4MB in the end (delta: 61.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB.
[2022-11-23 14:11:07,424 INFO  L158              Benchmark]: Boogie Procedure Inliner took 54.17ms. Allocated memory is still 178.3MB. Free memory was 79.4MB in the beginning and 76.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-23 14:11:07,429 INFO  L158              Benchmark]: Boogie Preprocessor took 26.89ms. Allocated memory is still 178.3MB. Free memory was 76.5MB in the beginning and 75.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-23 14:11:07,430 INFO  L158              Benchmark]: RCFGBuilder took 596.64ms. Allocated memory is still 178.3MB. Free memory was 75.2MB in the beginning and 145.0MB in the end (delta: -69.8MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB.
[2022-11-23 14:11:07,431 INFO  L158              Benchmark]: TraceAbstraction took 383.17ms. Allocated memory is still 178.3MB. Free memory was 143.5MB in the beginning and 126.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2022-11-23 14:11:07,432 INFO  L158              Benchmark]: Witness Printer took 5.47ms. Allocated memory is still 178.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-23 14:11:07,440 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory was 68.2MB in the beginning and 68.1MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 1504.23ms. Allocated memory is still 178.3MB. Free memory was 141.0MB in the beginning and 79.4MB in the end (delta: 61.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 54.17ms. Allocated memory is still 178.3MB. Free memory was 79.4MB in the beginning and 76.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 26.89ms. Allocated memory is still 178.3MB. Free memory was 76.5MB in the beginning and 75.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 596.64ms. Allocated memory is still 178.3MB. Free memory was 75.2MB in the beginning and 145.0MB in the end (delta: -69.8MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB.
 * TraceAbstraction took 383.17ms. Allocated memory is still 178.3MB. Free memory was 143.5MB in the beginning and 126.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
 * Witness Printer took 5.47ms. Allocated memory is still 178.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - GenericResult: Unfinished Backtranslation
    The program execution was not completely translated back.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - UnprovableResult [Line: 1587]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: overapproximation of atoi at line 1557. 
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);
[L1569]  CALL       printLine("Calling bad()...")
         VAL        [#in~line={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1414]  COND TRUE  line != ((void *)0)
[L1569]  RET        printLine("Calling bad()...")
         VAL        [#in~argv={1073741829:1073741827}, argc=1073741826, argv={1073741829:1073741827}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=1073741826]
[L1570]  CALL       CWE191_Integer_Underflow__int_fgets_postdec_53_bad()
[L1551]             int data;
[L1552]             data = 0
[L1554]             char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1555]  COND TRUE  fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1557]             data = atoi(inputBuffer)
[L1554]             char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1564]  CALL       CWE191_Integer_Underflow__int_fgets_postdec_53b_badSink(data)
[L1577]  CALL       CWE191_Integer_Underflow__int_fgets_postdec_53c_badSink(data)
[L1582]  CALL       CWE191_Integer_Underflow__int_fgets_postdec_53d_badSink(data)
[L1587]             data--
         VAL        [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~data-unknown=-2147483648]

  - UnprovableResult [Line: 1587]: 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, 15 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=15occurred 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, 8 NumberOfCodeBlocks, 8 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 could not prove your program: unable to determine feasibility of some traces
[2022-11-23 14:11:07,464 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis

### Bit-precise run ###
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_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )

 --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-4e7fbc6
[2022-11-23 14:11:09,879 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-23 14:11:09,881 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-23 14:11:09,900 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-23 14:11:09,900 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-23 14:11:09,901 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-23 14:11:09,903 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-23 14:11:09,905 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-23 14:11:09,906 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-23 14:11:09,907 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-23 14:11:09,908 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-23 14:11:09,910 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-23 14:11:09,910 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-23 14:11:09,911 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-23 14:11:09,912 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-23 14:11:09,913 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-23 14:11:09,914 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-23 14:11:09,915 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-23 14:11:09,917 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-23 14:11:09,919 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-23 14:11:09,920 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-23 14:11:09,921 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-23 14:11:09,922 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-23 14:11:09,923 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-23 14:11:09,927 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-23 14:11:09,927 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-23 14:11:09,928 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-23 14:11:09,929 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-23 14:11:09,929 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-23 14:11:09,930 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-23 14:11:09,930 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-23 14:11:09,931 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-23 14:11:09,932 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-23 14:11:09,933 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-23 14:11:09,939 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-23 14:11:09,939 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-23 14:11:09,940 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-23 14:11:09,940 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-23 14:11:09,941 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-23 14:11:09,942 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-23 14:11:09,942 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-23 14:11:09,943 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf
[2022-11-23 14:11:09,991 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-23 14:11:09,992 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-23 14:11:09,993 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-23 14:11:09,993 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-23 14:11:09,994 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-23 14:11:09,994 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-23 14:11:09,994 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-11-23 14:11:09,994 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-11-23 14:11:09,995 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-11-23 14:11:09,995 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-11-23 14:11:09,995 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-11-23 14:11:09,995 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-11-23 14:11:09,996 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-23 14:11:09,996 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-11-23 14:11:09,996 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-23 14:11:09,997 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-11-23 14:11:09,997 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-23 14:11:09,997 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-11-23 14:11:09,997 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-11-23 14:11:09,997 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-11-23 14:11:09,998 INFO  L138        SettingsManager]:  * Check absence of signed integer overflows=true
[2022-11-23 14:11:09,998 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-11-23 14:11:09,998 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-11-23 14:11:09,998 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-23 14:11:09,998 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-11-23 14:11:09,999 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-23 14:11:09,999 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-11-23 14:11:09,999 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-23 14:11:09,999 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 14:11:10,000 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-23 14:11:10,000 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-23 14:11:10,000 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-23 14:11:10,000 INFO  L138        SettingsManager]:  * Trace refinement strategy=WALRUS
[2022-11-23 14:11:10,000 INFO  L138        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2022-11-23 14:11:10,001 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-23 14:11:10,001 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-11-23 14:11:10,001 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-23 14:11:10,001 INFO  L138        SettingsManager]:  * Logic for external solver=AUFBV
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_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/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_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
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 -> Taipan
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 -> 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a
[2022-11-23 14:11:10,371 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-23 14:11:10,398 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-23 14:11:10,403 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-23 14:11:10,405 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-23 14:11:10,406 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-23 14:11:10,408 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i
[2022-11-23 14:11:13,530 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-11-23 14:11:13,971 INFO  L351              CDTParser]: Found 1 translation units.
[2022-11-23 14:11:13,972 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i
[2022-11-23 14:11:14,002 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/data/c2ba169af/e306ddf2f73b45bc8ccafae925102c0e/FLAG2880dc87f
[2022-11-23 14:11:14,017 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/data/c2ba169af/e306ddf2f73b45bc8ccafae925102c0e
[2022-11-23 14:11:14,024 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-23 14:11:14,026 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-23 14:11:14,028 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-23 14:11:14,028 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-23 14:11:14,034 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-23 14:11:14,035 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:11:14" (1/1) ...
[2022-11-23 14:11:14,037 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48febfcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:14, skipping insertion in model container
[2022-11-23 14:11:14,037 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:11:14" (1/1) ...
[2022-11-23 14:11:14,045 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-23 14:11:14,125 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-23 14:11:14,524 WARN  L611        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2022-11-23 14:11:15,414 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-23 14:11:15,433 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-23 14:11:15,489 WARN  L611        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2022-11-23 14:11:15,587 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-23 14:11:15,746 INFO  L208         MainTranslator]: Completed translation
[2022-11-23 14:11:15,746 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:15 WrapperNode
[2022-11-23 14:11:15,747 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-23 14:11:15,748 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-23 14:11:15,748 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-23 14:11:15,748 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-23 14:11:15,756 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:15" (1/1) ...
[2022-11-23 14:11:15,778 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:15" (1/1) ...
[2022-11-23 14:11:15,801 INFO  L138                Inliner]: procedures = 508, calls = 65, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 59
[2022-11-23 14:11:15,802 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-23 14:11:15,802 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-23 14:11:15,803 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-23 14:11:15,803 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-23 14:11:15,812 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:15" (1/1) ...
[2022-11-23 14:11:15,813 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:15" (1/1) ...
[2022-11-23 14:11:15,816 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:15" (1/1) ...
[2022-11-23 14:11:15,816 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:15" (1/1) ...
[2022-11-23 14:11:15,825 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:15" (1/1) ...
[2022-11-23 14:11:15,826 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:15" (1/1) ...
[2022-11-23 14:11:15,829 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:15" (1/1) ...
[2022-11-23 14:11:15,831 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:15" (1/1) ...
[2022-11-23 14:11:15,834 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-23 14:11:15,835 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-23 14:11:15,835 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-23 14:11:15,836 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-23 14:11:15,836 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:15" (1/1) ...
[2022-11-23 14:11:15,843 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 14:11:15,854 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 14:11:15,868 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-23 14:11:15,897 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-23 14:11:15,930 INFO  L130     BoogieDeclarations]: Found specification of procedure fgets
[2022-11-23 14:11:15,931 INFO  L130     BoogieDeclarations]: Found specification of procedure printLine
[2022-11-23 14:11:15,932 INFO  L138     BoogieDeclarations]: Found implementation of procedure printLine
[2022-11-23 14:11:15,933 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-23 14:11:15,933 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-11-23 14:11:15,934 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-23 14:11:15,934 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-23 14:11:15,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-23 14:11:15,934 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-23 14:11:15,934 INFO  L130     BoogieDeclarations]: Found specification of procedure time
[2022-11-23 14:11:15,934 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1
[2022-11-23 14:11:16,127 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-23 14:11:16,129 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-23 14:11:16,332 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-23 14:11:16,348 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-23 14:11:16,348 INFO  L300             CfgBuilder]: Removed 0 assume(true) statements.
[2022-11-23 14:11:16,350 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:16 BoogieIcfgContainer
[2022-11-23 14:11:16,351 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-23 14:11:16,353 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-23 14:11:16,355 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-23 14:11:16,358 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-23 14:11:16,359 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:11:14" (1/3) ...
[2022-11-23 14:11:16,359 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695bef97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:16, skipping insertion in model container
[2022-11-23 14:11:16,361 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:15" (2/3) ...
[2022-11-23 14:11:16,361 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695bef97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:16, skipping insertion in model container
[2022-11-23 14:11:16,362 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:16" (3/3) ...
[2022-11-23 14:11:16,363 INFO  L112   eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i
[2022-11-23 14:11:16,383 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-23 14:11:16,396 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-23 14:11:16,461 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-23 14:11:16,469 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@487983d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-23 14:11:16,469 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-23 14:11:16,473 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 21 states have internal predecessors, (22), 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)
[2022-11-23 14:11:16,482 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-11-23 14:11:16,483 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-23 14:11:16,483 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 14:11:16,484 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2022-11-23 14:11:16,490 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 14:11:16,491 INFO  L85        PathProgramCache]: Analyzing trace with hash 290656206, now seen corresponding path program 1 times
[2022-11-23 14:11:16,508 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WALRUS
[2022-11-23 14:11:16,509 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133046737]
[2022-11-23 14:11:16,509 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 14:11:16,509 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-23 14:11:16,510 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/mathsat
[2022-11-23 14:11:16,519 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-23 14:11:16,558 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-11-23 14:11:16,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-23 14:11:16,722 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-23 14:11:16,771 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-23 14:11:16,837 INFO  L130   FreeRefinementEngine]: Strategy WALRUS found a feasible trace
[2022-11-23 14:11:16,840 INFO  L359         BasicCegarLoop]: Counterexample is feasible
[2022-11-23 14:11:16,841 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2022-11-23 14:11:16,843 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2022-11-23 14:11:16,881 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2022-11-23 14:11:17,052 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-23 14:11:17,057 INFO  L444         BasicCegarLoop]: Path program histogram: [1]
[2022-11-23 14:11:17,066 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2022-11-23 14:11:17,113 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:11:17 BoogieIcfgContainer
[2022-11-23 14:11:17,117 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-23 14:11:17,118 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-23 14:11:17,119 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2022-11-23 14:11:17,120 INFO  L275        PluginConnector]: Witness Printer initialized
[2022-11-23 14:11:17,120 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:16" (3/4) ...
[2022-11-23 14:11:17,126 INFO  L140         WitnessPrinter]: No result that supports witness generation found
[2022-11-23 14:11:17,126 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-23 14:11:17,128 INFO  L158              Benchmark]: Toolchain (without parser) took 3101.00ms. Allocated memory is still 96.5MB. Free memory was 71.8MB in the beginning and 53.3MB in the end (delta: 18.5MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB.
[2022-11-23 14:11:17,128 INFO  L158              Benchmark]: CDTParser took 0.34ms. Allocated memory is still 67.1MB. Free memory was 45.8MB in the beginning and 45.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-23 14:11:17,130 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1719.33ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 62.2MB in the end (delta: 9.4MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB.
[2022-11-23 14:11:17,131 INFO  L158              Benchmark]: Boogie Procedure Inliner took 54.09ms. Allocated memory is still 96.5MB. Free memory was 62.2MB in the beginning and 59.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2022-11-23 14:11:17,135 INFO  L158              Benchmark]: Boogie Preprocessor took 32.06ms. Allocated memory is still 96.5MB. Free memory was 58.9MB in the beginning and 56.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-23 14:11:17,136 INFO  L158              Benchmark]: RCFGBuilder took 515.60ms. Allocated memory is still 96.5MB. Free memory was 56.8MB in the beginning and 42.8MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2022-11-23 14:11:17,137 INFO  L158              Benchmark]: TraceAbstraction took 764.42ms. Allocated memory is still 96.5MB. Free memory was 42.1MB in the beginning and 53.8MB in the end (delta: -11.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-23 14:11:17,138 INFO  L158              Benchmark]: Witness Printer took 8.32ms. Allocated memory is still 96.5MB. Free memory was 53.8MB in the beginning and 53.3MB in the end (delta: 519.0kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-23 14:11:17,141 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.34ms. Allocated memory is still 67.1MB. Free memory was 45.8MB in the beginning and 45.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 1719.33ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 62.2MB in the end (delta: 9.4MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 54.09ms. Allocated memory is still 96.5MB. Free memory was 62.2MB in the beginning and 59.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 32.06ms. Allocated memory is still 96.5MB. Free memory was 58.9MB in the beginning and 56.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 515.60ms. Allocated memory is still 96.5MB. Free memory was 56.8MB in the beginning and 42.8MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
 * TraceAbstraction took 764.42ms. Allocated memory is still 96.5MB. Free memory was 42.1MB in the beginning and 53.8MB in the end (delta: -11.7MB). There was no memory consumed. Max. memory is 16.1GB.
 * Witness Printer took 8.32ms. Allocated memory is still 96.5MB. Free memory was 53.8MB in the beginning and 53.3MB in the end (delta: 519.0kB). There was no memory consumed. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - GenericResult: Unfinished Backtranslation
    The program execution was not completely translated back.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - UnprovableResult [Line: 1587]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: overapproximation of atoi at line 1557. 
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);
         VAL        [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1569]  CALL       printLine("Calling bad()...")
         VAL        [#in~line={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1414]  COND TRUE  line != ((void *)0)
[L1569]  RET        printLine("Calling bad()...")
         VAL        [#in~argv={13:12}, argc=12, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=12]
[L1570]  CALL       CWE191_Integer_Underflow__int_fgets_postdec_53_bad()
[L1551]             int data;
[L1552]             data = 0
[L1554]             char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1555]  COND TRUE  fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1557]             data = atoi(inputBuffer)
[L1554]             char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1564]  CALL       CWE191_Integer_Underflow__int_fgets_postdec_53b_badSink(data)
[L1577]  CALL       CWE191_Integer_Underflow__int_fgets_postdec_53c_badSink(data)
[L1582]  CALL       CWE191_Integer_Underflow__int_fgets_postdec_53d_badSink(data)
[L1587]             data--
         VAL        [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~data-unknown=-2147483648]

  - UnprovableResult [Line: 1587]: 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: 0.6s, 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=25occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 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 could not prove your program: unable to determine feasibility of some traces
[2022-11-23 14:11:17,174 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabd6b52-c320-499e-afeb-929765d150a6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample