./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 9bd2c7ff
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_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu --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 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 08:06:27,360 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 08:06:27,482 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2023-11-19 08:06:27,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 08:06:27,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 08:06:27,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 08:06:27,537 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 08:06:27,537 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 08:06:27,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 08:06:27,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 08:06:27,545 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 08:06:27,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 08:06:27,546 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 08:06:27,548 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 08:06:27,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 08:06:27,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 08:06:27,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 08:06:27,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 08:06:27,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 08:06:27,551 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 08:06:27,551 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 08:06:27,552 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 08:06:27,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 08:06:27,553 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 08:06:27,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 08:06:27,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 08:06:27,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 08:06:27,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:06:27,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 08:06:27,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 08:06:27,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 08:06:27,558 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 08:06:27,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 08:06:27,559 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 08:06:27,559 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 08:06:27,559 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 08:06:27,560 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 08:06:27,560 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 08:06:27,560 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_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf
[2023-11-19 08:06:27,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 08:06:27,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 08:06:27,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 08:06:27,957 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 08:06:27,958 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 08:06:27,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i
[2023-11-19 08:06:31,038 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 08:06:31,509 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 08:06:31,510 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i
[2023-11-19 08:06:31,539 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/data/a5a9f9442/6a1acf9a9c9748aeabb3e73a400d668e/FLAG0849e0550
[2023-11-19 08:06:31,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/data/a5a9f9442/6a1acf9a9c9748aeabb3e73a400d668e
[2023-11-19 08:06:31,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 08:06:31,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 08:06:31,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 08:06:31,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 08:06:31,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 08:06:31,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:31" (1/1) ...
[2023-11-19 08:06:31,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@90ce8de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:31, skipping insertion in model container
[2023-11-19 08:06:31,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:31" (1/1) ...
[2023-11-19 08:06:31,647 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 08:06:32,107 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 08:06:32,626 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:06:32,638 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 08:06:32,659 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 08:06:32,771 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:06:32,934 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:06:32,934 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:06:32,934 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:06:32,935 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:06:32,935 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:06:32,935 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:06:32,942 INFO L206 MainTranslator]: Completed translation
[2023-11-19 08:06:32,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32 WrapperNode
[2023-11-19 08:06:32,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 08:06:32,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 08:06:32,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 08:06:32,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 08:06:32,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32" (1/1) ...
[2023-11-19 08:06:32,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32" (1/1) ...
[2023-11-19 08:06:33,008 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62
[2023-11-19 08:06:33,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 08:06:33,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 08:06:33,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 08:06:33,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 08:06:33,029 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32" (1/1) ...
[2023-11-19 08:06:33,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32" (1/1) ...
[2023-11-19 08:06:33,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32" (1/1) ...
[2023-11-19 08:06:33,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32" (1/1) ...
[2023-11-19 08:06:33,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32" (1/1) ...
[2023-11-19 08:06:33,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32" (1/1) ...
[2023-11-19 08:06:33,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32" (1/1) ...
[2023-11-19 08:06:33,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32" (1/1) ...
[2023-11-19 08:06:33,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 08:06:33,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 08:06:33,051 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 08:06:33,051 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 08:06:33,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32" (1/1) ...
[2023-11-19 08:06:33,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:06:33,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:06:33,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 08:06:33,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 08:06:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-19 08:06:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-19 08:06:33,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-19 08:06:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 08:06:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2023-11-19 08:06:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 08:06:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 08:06:33,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 08:06:33,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 08:06:33,146 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-19 08:06:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 08:06:33,352 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 08:06:33,354 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 08:06:33,499 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 08:06:33,506 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 08:06:33,507 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 08:06:33,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:33 BoogieIcfgContainer
[2023-11-19 08:06:33,510 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 08:06:33,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 08:06:33,513 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 08:06:33,517 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 08:06:33,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:06:31" (1/3) ...
[2023-11-19 08:06:33,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477c9060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:33, skipping insertion in model container
[2023-11-19 08:06:33,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32" (2/3) ...
[2023-11-19 08:06:33,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477c9060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:33, skipping insertion in model container
[2023-11-19 08:06:33,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:33" (3/3) ...
[2023-11-19 08:06:33,520 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i
[2023-11-19 08:06:33,541 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 08:06:33,542 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-19 08:06:33,595 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 08:06:33,602 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@76edce7f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 08:06:33,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-19 08:06:33,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 08:06:33,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-11-19 08:06:33,615 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:06:33,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:06:33,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 08:06:33,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:06:33,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times
[2023-11-19 08:06:33,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:06:33,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947662165]
[2023-11-19 08:06:33,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:06:33,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:06:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:06:33,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:06:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:06:33,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:06:33,983 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 08:06:33,984 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-19 08:06:33,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-19 08:06:33,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 08:06:33,991 INFO L445 BasicCegarLoop]: Path program histogram: [1]
[2023-11-19 08:06:33,996 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 08:06:34,026 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated
[2023-11-19 08:06:34,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:06:34 BoogieIcfgContainer
[2023-11-19 08:06:34,038 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 08:06:34,039 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 08:06:34,039 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 08:06:34,039 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 08:06:34,039 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:33" (3/4) ...
[2023-11-19 08:06:34,044 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 08:06:34,045 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 08:06:34,047 INFO L158 Benchmark]: Toolchain (without parser) took 2487.04ms. Allocated memory is still 157.3MB. Free memory was 126.3MB in the beginning and 118.4MB in the end (delta: 7.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB.
[2023-11-19 08:06:34,047 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 123.7MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:06:34,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1382.73ms. Allocated memory is still 157.3MB. Free memory was 126.1MB in the beginning and 116.8MB in the end (delta: 9.3MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB.
[2023-11-19 08:06:34,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.86ms. Allocated memory is still 157.3MB. Free memory was 116.8MB in the beginning and 113.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:06:34,050 INFO L158 Benchmark]: Boogie Preprocessor took 28.04ms. Allocated memory is still 157.3MB. Free memory was 113.5MB in the beginning and 112.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:06:34,056 INFO L158 Benchmark]: RCFGBuilder took 459.92ms. Allocated memory is still 157.3MB. Free memory was 112.4MB in the beginning and 98.9MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2023-11-19 08:06:34,057 INFO L158 Benchmark]: TraceAbstraction took 525.07ms. Allocated memory is still 157.3MB. Free memory was 97.9MB in the beginning and 119.5MB in the end (delta: -21.6MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB.
[2023-11-19 08:06:34,059 INFO L158 Benchmark]: Witness Printer took 6.65ms. Allocated memory is still 157.3MB. Free memory was 119.5MB in the beginning and 118.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:06:34,068 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30ms. Allocated memory is still 123.7MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1382.73ms. Allocated memory is still 157.3MB. Free memory was 126.1MB in the beginning and 116.8MB in the end (delta: 9.3MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 76.86ms. Allocated memory is still 157.3MB. Free memory was 116.8MB in the beginning and 113.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 28.04ms. Allocated memory is still 157.3MB. Free memory was 113.5MB in the beginning and 112.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 459.92ms. Allocated memory is still 157.3MB. Free memory was 112.4MB in the beginning and 98.9MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 525.07ms. Allocated memory is still 157.3MB. Free memory was 97.9MB in the beginning and 119.5MB in the end (delta: -21.6MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB.
* Witness Printer took 6.65ms. Allocated memory is still 157.3MB. Free memory was 119.5MB in the beginning and 118.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1574.
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]
[L1563] CALL 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, line={2:0}]
[L1414] COND TRUE line != ((void *)0)
[L1563] RET printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741831, argc=1073741831, argv={1073741829:1073741828}, argv={1073741829:1073741828}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_61_bad()
[L1551] int data;
[L1552] data = 0
[L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data)
[L1571] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1572] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1574] EXPR data = atoi(inputBuffer)
[L1571] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1570-L1580] {
char inputBuffer[(3 * sizeof(data) + 2)] = "";
if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0))
{
data = atoi(inputBuffer);
}
else
{
printLine("fgets() failed.");
}
}
[L1581] return data;
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=0, \result=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data)
[L1553] data = CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data)
[L1555] data--
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1555]: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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=23occurred 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, 12 NumberOfCodeBlocks, 12 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
[2023-11-19 08:06:34,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/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_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu --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 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 08:06:36,835 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 08:06:36,908 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2023-11-19 08:06:36,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 08:06:36,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 08:06:36,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2023-11-19 08:06:36,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 08:06:36,946 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 08:06:36,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 08:06:36,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 08:06:36,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 08:06:36,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 08:06:36,950 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 08:06:36,951 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 08:06:36,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 08:06:36,952 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 08:06:36,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 08:06:36,953 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 08:06:36,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 08:06:36,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 08:06:36,960 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 08:06:36,961 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-19 08:06:36,962 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 08:06:36,962 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-19 08:06:36,963 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 08:06:36,963 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 08:06:36,964 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 08:06:36,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 08:06:36,965 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 08:06:36,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 08:06:36,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:06:36,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 08:06:36,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 08:06:36,968 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 08:06:36,969 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-19 08:06:36,969 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-19 08:06:36,970 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 08:06:36,970 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 08:06:36,970 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 08:06:36,971 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 08:06:36,971 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-19 08:06:36,972 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 08:06:36,972 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_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf
[2023-11-19 08:06:37,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 08:06:37,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 08:06:37,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 08:06:37,463 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 08:06:37,464 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 08:06:37,465 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i
[2023-11-19 08:06:40,626 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 08:06:41,022 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 08:06:41,023 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i
[2023-11-19 08:06:41,051 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/data/81a1b54c6/c6de7a4fb75d417c8a9d32ecdd41d28b/FLAGed4441694
[2023-11-19 08:06:41,072 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/data/81a1b54c6/c6de7a4fb75d417c8a9d32ecdd41d28b
[2023-11-19 08:06:41,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 08:06:41,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 08:06:41,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 08:06:41,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 08:06:41,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 08:06:41,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:41" (1/1) ...
[2023-11-19 08:06:41,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44311c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41, skipping insertion in model container
[2023-11-19 08:06:41,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:41" (1/1) ...
[2023-11-19 08:06:41,170 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 08:06:41,675 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 08:06:42,442 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:06:42,467 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 08:06:42,503 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 08:06:42,588 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:06:42,726 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:06:42,727 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:06:42,727 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:06:42,727 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:06:42,727 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:06:42,727 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:06:42,735 INFO L206 MainTranslator]: Completed translation
[2023-11-19 08:06:42,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:42 WrapperNode
[2023-11-19 08:06:42,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 08:06:42,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 08:06:42,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 08:06:42,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 08:06:42,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:42" (1/1) ...
[2023-11-19 08:06:42,775 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:42" (1/1) ...
[2023-11-19 08:06:42,802 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60
[2023-11-19 08:06:42,802 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 08:06:42,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 08:06:42,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 08:06:42,803 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 08:06:42,811 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:42" (1/1) ...
[2023-11-19 08:06:42,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:42" (1/1) ...
[2023-11-19 08:06:42,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:42" (1/1) ...
[2023-11-19 08:06:42,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:42" (1/1) ...
[2023-11-19 08:06:42,826 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:42" (1/1) ...
[2023-11-19 08:06:42,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:42" (1/1) ...
[2023-11-19 08:06:42,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:42" (1/1) ...
[2023-11-19 08:06:42,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:42" (1/1) ...
[2023-11-19 08:06:42,838 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 08:06:42,839 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 08:06:42,839 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 08:06:42,840 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 08:06:42,840 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:42" (1/1) ...
[2023-11-19 08:06:42,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:06:42,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:06:42,895 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 08:06:42,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 08:06:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-19 08:06:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-19 08:06:42,936 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-19 08:06:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 08:06:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-19 08:06:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 08:06:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 08:06:42,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 08:06:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 08:06:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-19 08:06:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1
[2023-11-19 08:06:43,101 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 08:06:43,104 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 08:06:43,261 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 08:06:43,283 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 08:06:43,284 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 08:06:43,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:43 BoogieIcfgContainer
[2023-11-19 08:06:43,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 08:06:43,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 08:06:43,290 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 08:06:43,293 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 08:06:43,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:06:41" (1/3) ...
[2023-11-19 08:06:43,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c979011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:43, skipping insertion in model container
[2023-11-19 08:06:43,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:42" (2/3) ...
[2023-11-19 08:06:43,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c979011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:43, skipping insertion in model container
[2023-11-19 08:06:43,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:43" (3/3) ...
[2023-11-19 08:06:43,298 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i
[2023-11-19 08:06:43,319 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 08:06:43,319 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-19 08:06:43,381 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 08:06:43,389 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@dca0d11, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 08:06:43,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-19 08:06:43,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 08:06:43,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-11-19 08:06:43,402 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:06:43,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:06:43,404 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 08:06:43,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:06:43,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times
[2023-11-19 08:06:43,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 08:06:43,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408195413]
[2023-11-19 08:06:43,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:06:43,431 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
[2023-11-19 08:06:43,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 08:06:43,434 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/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)
[2023-11-19 08:06:43,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/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
[2023-11-19 08:06:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:06:43,640 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:06:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:06:43,760 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2023-11-19 08:06:43,766 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 08:06:43,768 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-19 08:06:43,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-19 08:06:43,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/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
[2023-11-19 08:06:43,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/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
[2023-11-19 08:06:43,982 INFO L445 BasicCegarLoop]: Path program histogram: [1]
[2023-11-19 08:06:43,989 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 08:06:44,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post97 could not be translated
[2023-11-19 08:06:44,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:06:44 BoogieIcfgContainer
[2023-11-19 08:06:44,039 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 08:06:44,041 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 08:06:44,041 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 08:06:44,041 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 08:06:44,042 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:43" (3/4) ...
[2023-11-19 08:06:44,044 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 08:06:44,045 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 08:06:44,047 INFO L158 Benchmark]: Toolchain (without parser) took 2963.63ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 46.1MB in the beginning and 80.1MB in the end (delta: -34.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:06:44,048 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 77.6MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:06:44,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1649.57ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 46.0MB in the beginning and 85.2MB in the end (delta: -39.3MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB.
[2023-11-19 08:06:44,056 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.21ms. Allocated memory is still 113.2MB. Free memory was 85.2MB in the beginning and 82.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:06:44,056 INFO L158 Benchmark]: Boogie Preprocessor took 35.70ms. Allocated memory is still 113.2MB. Free memory was 82.4MB in the beginning and 80.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:06:44,057 INFO L158 Benchmark]: RCFGBuilder took 448.02ms. Allocated memory is still 113.2MB. Free memory was 80.1MB in the beginning and 65.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-19 08:06:44,057 INFO L158 Benchmark]: TraceAbstraction took 749.46ms. Allocated memory is still 113.2MB. Free memory was 65.5MB in the beginning and 80.1MB in the end (delta: -14.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2023-11-19 08:06:44,058 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 113.2MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:06:44,063 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 77.6MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1649.57ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 46.0MB in the beginning and 85.2MB in the end (delta: -39.3MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 65.21ms. Allocated memory is still 113.2MB. Free memory was 85.2MB in the beginning and 82.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 35.70ms. Allocated memory is still 113.2MB. Free memory was 82.4MB in the beginning and 80.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 448.02ms. Allocated memory is still 113.2MB. Free memory was 80.1MB in the beginning and 65.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 749.46ms. Allocated memory is still 113.2MB. Free memory was 65.5MB in the beginning and 80.1MB in the end (delta: -14.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
* Witness Printer took 5.06ms. Allocated memory is still 113.2MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~post97 could not be translated
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1574.
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]
[L1563] CALL 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, line={2:0}]
[L1414] COND TRUE line != ((void *)0)
[L1563] RET printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_61_bad()
[L1551] int data;
[L1552] data = 0
[L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data)
[L1571] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1572] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1574] EXPR data = atoi(inputBuffer)
[L1571] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1570-L1580] {
char inputBuffer[(3 * sizeof(data) + 2)] = "";
if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0))
{
data = atoi(inputBuffer);
}
else
{
printLine("fgets() failed.");
}
}
[L1581] return data;
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=0, \result=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data)
[L1553] data = CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data)
[L1555] data--
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1555]: 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, 23 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=23occurred 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, 12 NumberOfCodeBlocks, 12 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
[2023-11-19 08:06:44,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb1792b-3021-48b6-bbc3-7a4dc0ff66d0/bin/uautomizer-verify-uCwYo4JHxu/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