./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_13_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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 e314a29ac007dec98ba2eef30ad04385da74b9dda89843d5c04504c999a9e9ea
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 08:04:11,408 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 08:04:11,474 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2023-11-19 08:04:11,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 08:04:11,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 08:04:11,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 08:04:11,505 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 08:04:11,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 08:04:11,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 08:04:11,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 08:04:11,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 08:04:11,509 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 08:04:11,510 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 08:04:11,510 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 08:04:11,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 08:04:11,511 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 08:04:11,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 08:04:11,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 08:04:11,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 08:04:11,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 08:04:11,514 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 08:04:11,515 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 08:04:11,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 08:04:11,516 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 08:04:11,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 08:04:11,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 08:04:11,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 08:04:11,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:04:11,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 08:04:11,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 08:04:11,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 08:04:11,519 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 08:04:11,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 08:04:11,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 08:04:11,521 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 08:04:11,521 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 08:04:11,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 08:04:11,521 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 08:04:11,522 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_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e314a29ac007dec98ba2eef30ad04385da74b9dda89843d5c04504c999a9e9ea
[2023-11-19 08:04:11,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 08:04:11,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 08:04:11,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 08:04:11,825 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 08:04:11,825 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 08:04:11,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_13_bad.i
[2023-11-19 08:04:15,015 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 08:04:15,463 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 08:04:15,463 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_13_bad.i
[2023-11-19 08:04:15,496 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/data/e03be4822/9abfe1e45e3842069583ae8796fc7e45/FLAG486daae67
[2023-11-19 08:04:15,515 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/data/e03be4822/9abfe1e45e3842069583ae8796fc7e45
[2023-11-19 08:04:15,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 08:04:15,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 08:04:15,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 08:04:15,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 08:04:15,541 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 08:04:15,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:15" (1/1) ...
[2023-11-19 08:04:15,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f6ec0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:15, skipping insertion in model container
[2023-11-19 08:04:15,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:15" (1/1) ...
[2023-11-19 08:04:15,612 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 08:04:16,012 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 08:04:16,639 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:04:16,656 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 08:04:16,689 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 08:04:16,764 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:04:16,981 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:04:16,982 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:04:16,982 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:04:16,982 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:04:16,982 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:04:16,983 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:04:16,991 INFO L206 MainTranslator]: Completed translation
[2023-11-19 08:04:16,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:16 WrapperNode
[2023-11-19 08:04:16,991 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 08:04:16,992 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 08:04:16,992 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 08:04:16,992 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 08:04:17,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:16" (1/1) ...
[2023-11-19 08:04:17,038 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:16" (1/1) ...
[2023-11-19 08:04:17,067 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55
[2023-11-19 08:04:17,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 08:04:17,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 08:04:17,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 08:04:17,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 08:04:17,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:16" (1/1) ...
[2023-11-19 08:04:17,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:16" (1/1) ...
[2023-11-19 08:04:17,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:16" (1/1) ...
[2023-11-19 08:04:17,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:16" (1/1) ...
[2023-11-19 08:04:17,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:16" (1/1) ...
[2023-11-19 08:04:17,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:16" (1/1) ...
[2023-11-19 08:04:17,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:16" (1/1) ...
[2023-11-19 08:04:17,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:16" (1/1) ...
[2023-11-19 08:04:17,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 08:04:17,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 08:04:17,105 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 08:04:17,106 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 08:04:17,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:16" (1/1) ...
[2023-11-19 08:04:17,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:04:17,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:04:17,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 08:04:17,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 08:04:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-19 08:04:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-19 08:04:17,210 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-19 08:04:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 08:04:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2023-11-19 08:04:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 08:04:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 08:04:17,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 08:04:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 08:04:17,212 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-19 08:04:17,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 08:04:17,362 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 08:04:17,365 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 08:04:17,501 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 08:04:17,509 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 08:04:17,510 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 08:04:17,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:17 BoogieIcfgContainer
[2023-11-19 08:04:17,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 08:04:17,516 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 08:04:17,517 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 08:04:17,520 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 08:04:17,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:04:15" (1/3) ...
[2023-11-19 08:04:17,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277b1c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:17, skipping insertion in model container
[2023-11-19 08:04:17,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:16" (2/3) ...
[2023-11-19 08:04:17,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277b1c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:17, skipping insertion in model container
[2023-11-19 08:04:17,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:17" (3/3) ...
[2023-11-19 08:04:17,524 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_13_bad.i
[2023-11-19 08:04:17,546 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 08:04:17,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-19 08:04:17,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 08:04:17,604 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;@497fd470, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 08:04:17,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-19 08:04:17,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 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 08:04:17,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-11-19 08:04:17,617 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:04:17,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:04:17,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 08:04:17,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:04:17,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times
[2023-11-19 08:04:17,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:04:17,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699487848]
[2023-11-19 08:04:17,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:04:17,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:04:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:04:17,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-19 08:04:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:04:17,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:04:17,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:04:17,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699487848]
[2023-11-19 08:04:17,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699487848] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:04:17,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:04:17,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 08:04:17,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552669393]
[2023-11-19 08:04:17,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:04:17,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 08:04:17,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:04:17,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 08:04:17,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 08:04:17,995 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-19 08:04:18,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:04:18,052 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions.
[2023-11-19 08:04:18,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 08:04:18,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2023-11-19 08:04:18,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:04:18,062 INFO L225 Difference]: With dead ends: 42
[2023-11-19 08:04:18,062 INFO L226 Difference]: Without dead ends: 18
[2023-11-19 08:04:18,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 08:04:18,069 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 08:04:18,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 08:04:18,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2023-11-19 08:04:18,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2023-11-19 08:04:18,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-19 08:04:18,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions.
[2023-11-19 08:04:18,109 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12
[2023-11-19 08:04:18,110 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:04:18,111 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions.
[2023-11-19 08:04:18,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-19 08:04:18,111 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions.
[2023-11-19 08:04:18,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-11-19 08:04:18,116 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:04:18,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:04:18,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 08:04:18,117 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 08:04:18,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:04:18,118 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times
[2023-11-19 08:04:18,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:04:18,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114245284]
[2023-11-19 08:04:18,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:04:18,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:04:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:04:18,169 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:04:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:04:18,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:04:18,259 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 08:04:18,261 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-19 08:04:18,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-19 08:04:18,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 08:04:18,267 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-19 08:04:18,273 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 08:04:18,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:04:18 BoogieIcfgContainer
[2023-11-19 08:04:18,323 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 08:04:18,326 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 08:04:18,327 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 08:04:18,327 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 08:04:18,328 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:17" (3/4) ...
[2023-11-19 08:04:18,333 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 08:04:18,334 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 08:04:18,335 INFO L158 Benchmark]: Toolchain (without parser) took 2813.94ms. Allocated memory was 148.9MB in the beginning and 211.8MB in the end (delta: 62.9MB). Free memory was 112.2MB in the beginning and 111.8MB in the end (delta: 378.7kB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB.
[2023-11-19 08:04:18,335 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 148.9MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:04:18,340 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1469.46ms. Allocated memory was 148.9MB in the beginning and 211.8MB in the end (delta: 62.9MB). Free memory was 112.2MB in the beginning and 164.3MB in the end (delta: -52.1MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB.
[2023-11-19 08:04:18,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.52ms. Allocated memory is still 211.8MB. Free memory was 163.2MB in the beginning and 161.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:04:18,344 INFO L158 Benchmark]: Boogie Preprocessor took 32.05ms. Allocated memory is still 211.8MB. Free memory was 161.1MB in the beginning and 159.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:04:18,344 INFO L158 Benchmark]: RCFGBuilder took 408.42ms. Allocated memory is still 211.8MB. Free memory was 159.0MB in the beginning and 145.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-19 08:04:18,345 INFO L158 Benchmark]: TraceAbstraction took 806.87ms. Allocated memory is still 211.8MB. Free memory was 145.4MB in the beginning and 112.9MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB.
[2023-11-19 08:04:18,345 INFO L158 Benchmark]: Witness Printer took 7.90ms. Allocated memory is still 211.8MB. Free memory was 112.9MB in the beginning and 111.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:04:18,353 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.21ms. Allocated memory is still 148.9MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1469.46ms. Allocated memory was 148.9MB in the beginning and 211.8MB in the end (delta: 62.9MB). Free memory was 112.2MB in the beginning and 164.3MB in the end (delta: -52.1MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 79.52ms. Allocated memory is still 211.8MB. Free memory was 163.2MB in the beginning and 161.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 32.05ms. Allocated memory is still 211.8MB. Free memory was 161.1MB in the beginning and 159.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 408.42ms. Allocated memory is still 211.8MB. Free memory was 159.0MB in the beginning and 145.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 806.87ms. Allocated memory is still 211.8MB. Free memory was 145.4MB in the beginning and 112.9MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB.
* Witness Printer took 7.90ms. Allocated memory is still 211.8MB. Free memory was 112.9MB in the beginning and 111.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1558.
Possible FailurePath:
[L1522] const int GLOBAL_CONST_TRUE = 1;
[L1523] const int GLOBAL_CONST_FALSE = 0;
[L1524] const int GLOBAL_CONST_FIVE = 5;
[L1525] int globalTrue = 1;
[L1526] int globalFalse = 0;
[L1527] int globalFive = 5;
[L1546] int globalArgc = 0;
[L1547] char** globalArgv = ((void *)0);
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1578] 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={4:0}]
[L1414] COND TRUE line != ((void *)0)
[L1578] RET printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741830, argc=1073741830, argv={1073741828:1073741831}, argv={1073741828:1073741831}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1579] CALL CWE191_Integer_Underflow__int_fgets_multiply_13_bad()
[L1550] int data;
[L1551] data = 0
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1552] COND TRUE GLOBAL_CONST_FIVE==5
[L1555] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1558] EXPR data = atoi(inputBuffer)
[L1555] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1554-L1564] {
char inputBuffer[(3 * sizeof(data) + 2)] = "";
if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0))
{
data = atoi(inputBuffer);
}
else
{
printLine("fgets() failed.");
}
}
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1566] COND TRUE GLOBAL_CONST_FIVE==5
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1568] COND TRUE data < 0
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1570] data * 2
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1570]: 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: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 27 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2023-11-19 08:04:18,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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 e314a29ac007dec98ba2eef30ad04385da74b9dda89843d5c04504c999a9e9ea
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 08:04:21,138 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 08:04:21,217 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2023-11-19 08:04:21,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 08:04:21,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 08:04:21,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2023-11-19 08:04:21,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 08:04:21,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 08:04:21,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 08:04:21,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 08:04:21,290 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 08:04:21,291 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 08:04:21,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 08:04:21,294 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 08:04:21,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 08:04:21,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 08:04:21,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 08:04:21,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 08:04:21,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 08:04:21,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 08:04:21,298 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 08:04:21,298 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-19 08:04:21,299 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 08:04:21,299 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-19 08:04:21,300 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 08:04:21,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 08:04:21,300 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 08:04:21,301 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 08:04:21,301 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 08:04:21,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 08:04:21,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:04:21,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 08:04:21,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 08:04:21,304 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 08:04:21,304 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-19 08:04:21,305 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-19 08:04:21,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 08:04:21,305 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 08:04:21,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 08:04:21,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 08:04:21,307 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-19 08:04:21,307 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 08:04:21,307 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_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e314a29ac007dec98ba2eef30ad04385da74b9dda89843d5c04504c999a9e9ea
[2023-11-19 08:04:21,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 08:04:21,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 08:04:21,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 08:04:21,767 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 08:04:21,768 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 08:04:21,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_13_bad.i
[2023-11-19 08:04:25,068 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 08:04:25,574 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 08:04:25,576 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_13_bad.i
[2023-11-19 08:04:25,610 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/data/513c5f4a1/fb1deffc74b74961816878f1637d35a7/FLAGc0d03947d
[2023-11-19 08:04:25,629 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/data/513c5f4a1/fb1deffc74b74961816878f1637d35a7
[2023-11-19 08:04:25,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 08:04:25,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 08:04:25,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 08:04:25,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 08:04:25,646 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 08:04:25,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:25" (1/1) ...
[2023-11-19 08:04:25,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a03657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:25, skipping insertion in model container
[2023-11-19 08:04:25,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:25" (1/1) ...
[2023-11-19 08:04:25,730 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 08:04:26,263 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 08:04:27,061 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:04:27,077 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 08:04:27,096 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 08:04:27,156 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:04:27,329 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:04:27,330 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:04:27,330 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:04:27,330 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:04:27,330 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:04:27,330 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:04:27,338 INFO L206 MainTranslator]: Completed translation
[2023-11-19 08:04:27,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27 WrapperNode
[2023-11-19 08:04:27,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 08:04:27,340 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 08:04:27,341 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 08:04:27,341 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 08:04:27,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ...
[2023-11-19 08:04:27,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ...
[2023-11-19 08:04:27,405 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54
[2023-11-19 08:04:27,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 08:04:27,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 08:04:27,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 08:04:27,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 08:04:27,417 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ...
[2023-11-19 08:04:27,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ...
[2023-11-19 08:04:27,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ...
[2023-11-19 08:04:27,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ...
[2023-11-19 08:04:27,432 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ...
[2023-11-19 08:04:27,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ...
[2023-11-19 08:04:27,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ...
[2023-11-19 08:04:27,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ...
[2023-11-19 08:04:27,444 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 08:04:27,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 08:04:27,446 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 08:04:27,446 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 08:04:27,447 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ...
[2023-11-19 08:04:27,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:04:27,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:04:27,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 08:04:27,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 08:04:27,546 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-19 08:04:27,546 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-19 08:04:27,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-19 08:04:27,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 08:04:27,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-19 08:04:27,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 08:04:27,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 08:04:27,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 08:04:27,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 08:04:27,549 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-19 08:04:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1
[2023-11-19 08:04:27,719 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 08:04:27,722 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 08:04:27,874 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 08:04:27,882 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 08:04:27,882 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 08:04:27,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:27 BoogieIcfgContainer
[2023-11-19 08:04:27,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 08:04:27,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 08:04:27,888 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 08:04:27,891 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 08:04:27,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:04:25" (1/3) ...
[2023-11-19 08:04:27,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583118ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:27, skipping insertion in model container
[2023-11-19 08:04:27,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (2/3) ...
[2023-11-19 08:04:27,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583118ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:27, skipping insertion in model container
[2023-11-19 08:04:27,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:27" (3/3) ...
[2023-11-19 08:04:27,894 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_13_bad.i
[2023-11-19 08:04:27,914 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 08:04:27,914 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-19 08:04:27,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 08:04:27,978 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;@48c5c009, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 08:04:27,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-19 08:04:27,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 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 08:04:27,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-11-19 08:04:27,994 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:04:27,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:04:27,996 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 08:04:28,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:04:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times
[2023-11-19 08:04:28,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 08:04:28,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617163821]
[2023-11-19 08:04:28,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:04:28,017 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 08:04:28,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 08:04:28,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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 08:04:28,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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 08:04:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:04:28,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 08:04:28,212 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:04:28,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:04:28,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 08:04:28,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 08:04:28,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617163821]
[2023-11-19 08:04:28,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617163821] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:04:28,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:04:28,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 08:04:28,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741664548]
[2023-11-19 08:04:28,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:04:28,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 08:04:28,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 08:04:28,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 08:04:28,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 08:04:28,393 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-19 08:04:28,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:04:28,425 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions.
[2023-11-19 08:04:28,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 08:04:28,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2023-11-19 08:04:28,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:04:28,435 INFO L225 Difference]: With dead ends: 42
[2023-11-19 08:04:28,435 INFO L226 Difference]: Without dead ends: 18
[2023-11-19 08:04:28,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 08:04:28,442 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 08:04:28,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 08:04:28,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2023-11-19 08:04:28,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2023-11-19 08:04:28,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-19 08:04:28,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions.
[2023-11-19 08:04:28,480 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12
[2023-11-19 08:04:28,482 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:04:28,482 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions.
[2023-11-19 08:04:28,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-19 08:04:28,483 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions.
[2023-11-19 08:04:28,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-11-19 08:04:28,484 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:04:28,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:04:28,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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)] Ended with exit code 0
[2023-11-19 08:04:28,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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 08:04:28,688 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 08:04:28,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:04:28,689 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times
[2023-11-19 08:04:28,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 08:04:28,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098222606]
[2023-11-19 08:04:28,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:04:28,691 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 08:04:28,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 08:04:28,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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 08:04:28,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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 (3)] Waiting until timeout for monitored process
[2023-11-19 08:04:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:04:28,831 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:04:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:04:28,911 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2023-11-19 08:04:28,916 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 08:04:28,921 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-19 08:04:28,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-19 08:04:28,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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 (3)] Forceful destruction successful, exit code 0
[2023-11-19 08:04:29,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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 08:04:29,129 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-19 08:04:29,132 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 08:04:29,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:04:29 BoogieIcfgContainer
[2023-11-19 08:04:29,162 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 08:04:29,163 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 08:04:29,163 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 08:04:29,163 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 08:04:29,164 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:27" (3/4) ...
[2023-11-19 08:04:29,166 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 08:04:29,168 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 08:04:29,169 INFO L158 Benchmark]: Toolchain (without parser) took 3531.74ms. Allocated memory is still 104.9MB. Free memory was 76.9MB in the beginning and 60.6MB in the end (delta: 16.3MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB.
[2023-11-19 08:04:29,169 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 69.2MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:04:29,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1701.27ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 77.8MB in the end (delta: -1.2MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB.
[2023-11-19 08:04:29,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.23ms. Allocated memory is still 104.9MB. Free memory was 77.8MB in the beginning and 74.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-19 08:04:29,171 INFO L158 Benchmark]: Boogie Preprocessor took 38.34ms. Allocated memory is still 104.9MB. Free memory was 74.2MB in the beginning and 72.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:04:29,171 INFO L158 Benchmark]: RCFGBuilder took 440.29ms. Allocated memory is still 104.9MB. Free memory was 72.1MB in the beginning and 58.3MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-11-19 08:04:29,172 INFO L158 Benchmark]: TraceAbstraction took 1274.44ms. Allocated memory is still 104.9MB. Free memory was 57.4MB in the beginning and 60.6MB in the end (delta: -3.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:04:29,172 INFO L158 Benchmark]: Witness Printer took 4.94ms. Allocated memory is still 104.9MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:04:29,175 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33ms. Allocated memory is still 69.2MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1701.27ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 77.8MB in the end (delta: -1.2MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 65.23ms. Allocated memory is still 104.9MB. Free memory was 77.8MB in the beginning and 74.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 38.34ms. Allocated memory is still 104.9MB. Free memory was 74.2MB in the beginning and 72.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 440.29ms. Allocated memory is still 104.9MB. Free memory was 72.1MB in the beginning and 58.3MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 1274.44ms. Allocated memory is still 104.9MB. Free memory was 57.4MB in the beginning and 60.6MB in the end (delta: -3.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 4.94ms. Allocated memory is still 104.9MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1558.
Possible FailurePath:
[L1522] const int GLOBAL_CONST_TRUE = 1;
[L1523] const int GLOBAL_CONST_FALSE = 0;
[L1524] const int GLOBAL_CONST_FIVE = 5;
[L1525] int globalTrue = 1;
[L1526] int globalFalse = 0;
[L1527] int globalFive = 5;
[L1546] int globalArgc = 0;
[L1547] char** globalArgv = ((void *)0);
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1578] 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={4:0}]
[L1414] COND TRUE line != ((void *)0)
[L1578] 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]
[L1579] CALL CWE191_Integer_Underflow__int_fgets_multiply_13_bad()
[L1550] int data;
[L1551] data = 0
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1552] COND TRUE GLOBAL_CONST_FIVE==5
[L1555] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1558] EXPR data = atoi(inputBuffer)
[L1555] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1554-L1564] {
char inputBuffer[(3 * sizeof(data) + 2)] = "";
if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0))
{
data = atoi(inputBuffer);
}
else
{
printLine("fgets() failed.");
}
}
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]
[L1566] COND TRUE GLOBAL_CONST_FIVE==5
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]
[L1568] COND TRUE data < 0
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]
[L1570] data * 2
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: 1570]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 27 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 46 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2023-11-19 08:04:29,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a817516-4c5c-4a8e-be46-1ed9d3a0f2c7/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