./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/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_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/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_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/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 84abbeab2c929e6ff1f3df3929c646a9a8cef266072a2d77da11e86bd9528e00
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:59:29,833 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:59:29,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2023-11-19 07:59:29,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:59:29,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:59:29,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:59:29,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:59:29,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:59:29,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:59:29,982 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:59:29,983 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:59:29,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:59:29,984 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:59:29,986 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:59:29,986 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:59:29,987 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:59:29,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:59:29,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:59:29,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:59:29,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:59:29,989 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 07:59:29,989 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:59:29,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:59:29,990 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:59:29,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:59:29,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:59:29,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:59:29,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:59:29,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:59:29,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:59:29,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:59:29,993 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:59:29,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:59:29,994 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:59:29,994 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:59:29,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:59:29,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:59:29,995 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:59:29,995 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_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84abbeab2c929e6ff1f3df3929c646a9a8cef266072a2d77da11e86bd9528e00
[2023-11-19 07:59:30,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:59:30,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:59:30,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:59:30,352 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:59:30,353 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:59:30,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i
[2023-11-19 07:59:33,403 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:59:33,758 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:59:33,758 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i
[2023-11-19 07:59:33,782 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/data/d297f8a43/f40a232d4a5a4120be5912a92a8cc8a7/FLAG884ca3ed5
[2023-11-19 07:59:33,797 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/data/d297f8a43/f40a232d4a5a4120be5912a92a8cc8a7
[2023-11-19 07:59:33,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:59:33,801 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:59:33,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:59:33,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:59:33,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:59:33,809 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:33" (1/1) ...
[2023-11-19 07:59:33,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c86c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:33, skipping insertion in model container
[2023-11-19 07:59:33,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:33" (1/1) ...
[2023-11-19 07:59:33,901 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:59:34,313 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:59:34,863 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:59:34,875 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:59:34,905 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:59:34,969 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:59:35,126 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:59:35,127 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:59:35,127 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:59:35,127 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:59:35,128 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:59:35,128 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:59:35,136 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:59:35,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35 WrapperNode
[2023-11-19 07:59:35,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:59:35,138 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:59:35,138 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:59:35,138 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:59:35,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ...
[2023-11-19 07:59:35,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ...
[2023-11-19 07:59:35,212 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58
[2023-11-19 07:59:35,213 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:59:35,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:59:35,214 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:59:35,214 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:59:35,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ...
[2023-11-19 07:59:35,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ...
[2023-11-19 07:59:35,227 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ...
[2023-11-19 07:59:35,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ...
[2023-11-19 07:59:35,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ...
[2023-11-19 07:59:35,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ...
[2023-11-19 07:59:35,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ...
[2023-11-19 07:59:35,239 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ...
[2023-11-19 07:59:35,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:59:35,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:59:35,244 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:59:35,244 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:59:35,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ...
[2023-11-19 07:59:35,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:59:35,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:59:35,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:59:35,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:59:35,317 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-19 07:59:35,318 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-19 07:59:35,318 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-19 07:59:35,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:59:35,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2023-11-19 07:59:35,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:59:35,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:59:35,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:59:35,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:59:35,319 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-19 07:59:35,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:59:35,526 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:59:35,529 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:59:35,731 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:59:35,739 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:59:35,740 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:59:35,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:35 BoogieIcfgContainer
[2023-11-19 07:59:35,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:59:35,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:59:35,745 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:59:35,751 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:59:35,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:33" (1/3) ...
[2023-11-19 07:59:35,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1c414c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:35, skipping insertion in model container
[2023-11-19 07:59:35,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (2/3) ...
[2023-11-19 07:59:35,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1c414c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:35, skipping insertion in model container
[2023-11-19 07:59:35,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:35" (3/3) ...
[2023-11-19 07:59:35,756 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i
[2023-11-19 07:59:35,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:59:35,776 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-19 07:59:35,837 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:59:35,845 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;@d184be2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:59:35,845 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-19 07:59:35,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:59:35,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-11-19 07:59:35,859 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:59:35,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:59:35,861 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 07:59:35,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:59:35,866 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times
[2023-11-19 07:59:35,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:59:35,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649859854]
[2023-11-19 07:59:35,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:59:35,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:59:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:59:36,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:59:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:59:36,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:59:36,215 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:59:36,216 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-19 07:59:36,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-19 07:59:36,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:59:36,228 INFO L445 BasicCegarLoop]: Path program histogram: [1]
[2023-11-19 07:59:36,234 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:59:36,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:59:36 BoogieIcfgContainer
[2023-11-19 07:59:36,278 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:59:36,279 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:59:36,279 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:59:36,279 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:59:36,280 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:35" (3/4) ...
[2023-11-19 07:59:36,282 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 07:59:36,283 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:59:36,284 INFO L158 Benchmark]: Toolchain (without parser) took 2483.27ms. Allocated memory is still 151.0MB. Free memory was 89.7MB in the beginning and 116.6MB in the end (delta: -26.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:59:36,285 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 102.8MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:59:36,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1334.02ms. Allocated memory is still 151.0MB. Free memory was 89.3MB in the beginning and 88.6MB in the end (delta: 724.7kB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB.
[2023-11-19 07:59:36,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.61ms. Allocated memory is still 151.0MB. Free memory was 88.0MB in the beginning and 85.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:59:36,287 INFO L158 Benchmark]: Boogie Preprocessor took 29.05ms. Allocated memory is still 151.0MB. Free memory was 85.6MB in the beginning and 83.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:59:36,288 INFO L158 Benchmark]: RCFGBuilder took 499.56ms. Allocated memory is still 151.0MB. Free memory was 83.8MB in the beginning and 70.9MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-11-19 07:59:36,288 INFO L158 Benchmark]: TraceAbstraction took 533.43ms. Allocated memory is still 151.0MB. Free memory was 69.7MB in the beginning and 116.6MB in the end (delta: -46.8MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB.
[2023-11-19 07:59:36,289 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 151.0MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:59:36,292 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32ms. Allocated memory is still 102.8MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1334.02ms. Allocated memory is still 151.0MB. Free memory was 89.3MB in the beginning and 88.6MB in the end (delta: 724.7kB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 75.61ms. Allocated memory is still 151.0MB. Free memory was 88.0MB in the beginning and 85.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 29.05ms. Allocated memory is still 151.0MB. Free memory was 85.6MB in the beginning and 83.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 499.56ms. Allocated memory is still 151.0MB. Free memory was 83.8MB in the beginning and 70.9MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 533.43ms. Allocated memory is still 151.0MB. Free memory was 69.7MB in the beginning and 116.6MB in the end (delta: -46.8MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB.
* Witness Printer took 4.33ms. Allocated memory is still 151.0MB. Free memory is still 116.6MB. 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: 1586]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1560.
Possible FailurePath:
[L1522] const int GLOBAL_CONST_TRUE = 1;
[L1523] const int GLOBAL_CONST_FALSE = 0;
[L1524] const int GLOBAL_CONST_FIVE = 5;
[L1525] int globalTrue = 1;
[L1526] int globalFalse = 0;
[L1527] int globalFive = 5;
[L1546] int globalArgc = 0;
[L1547] char** globalArgv = ((void *)0);
[L1548] int CWE191_Integer_Underflow__int_fgets_multiply_68_badData;
[L1549] int CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData;
VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1573] CALL printLine("Calling bad()...")
VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, 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)
[L1573] RET printLine("Calling bad()...")
VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741831, argc=1073741831, argv={1073741828:1073741827}, argv={1073741828:1073741827}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1574] CALL CWE191_Integer_Underflow__int_fgets_multiply_68_bad()
[L1554] int data;
[L1555] data = 0
[L1557] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1558] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1560] EXPR data = atoi(inputBuffer)
[L1557] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1556-L1566] {
char inputBuffer[(3 * sizeof(data) + 2)] = "";
if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0))
{
data = atoi(inputBuffer);
}
else
{
printLine("fgets() failed.");
}
}
[L1567] CWE191_Integer_Underflow__int_fgets_multiply_68_badData = data
[L1568] CALL CWE191_Integer_Underflow__int_fgets_multiply_68b_badSink()
[L1583] int data = CWE191_Integer_Underflow__int_fgets_multiply_68_badData;
VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, 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]
[L1584] COND TRUE data < 0
VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, 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]
[L1586] data * 2
VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, 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: 1586]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2023-11-19 07:59:36,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/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_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/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_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/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 84abbeab2c929e6ff1f3df3929c646a9a8cef266072a2d77da11e86bd9528e00
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:59:38,995 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:59:39,137 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2023-11-19 07:59:39,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:59:39,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:59:39,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2023-11-19 07:59:39,193 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:59:39,194 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:59:39,195 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:59:39,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:59:39,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:59:39,201 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:59:39,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:59:39,203 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:59:39,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:59:39,205 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:59:39,206 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:59:39,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:59:39,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:59:39,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:59:39,208 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:59:39,209 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-19 07:59:39,209 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 07:59:39,210 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-19 07:59:39,210 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:59:39,211 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:59:39,211 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:59:39,212 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:59:39,212 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:59:39,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:59:39,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:59:39,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:59:39,214 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:59:39,215 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:59:39,215 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-19 07:59:39,215 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-19 07:59:39,216 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:59:39,216 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:59:39,216 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:59:39,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:59:39,217 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-19 07:59:39,218 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:59:39,218 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_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84abbeab2c929e6ff1f3df3929c646a9a8cef266072a2d77da11e86bd9528e00
[2023-11-19 07:59:39,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:59:39,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:59:39,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:59:39,672 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:59:39,675 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:59:39,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i
[2023-11-19 07:59:42,737 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:59:43,133 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:59:43,133 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i
[2023-11-19 07:59:43,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/data/fc84b4108/f05d281e61414845b4c8685a37b2681d/FLAGc8dd58404
[2023-11-19 07:59:43,175 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/data/fc84b4108/f05d281e61414845b4c8685a37b2681d
[2023-11-19 07:59:43,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:59:43,188 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:59:43,191 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:59:43,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:59:43,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:59:43,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:43" (1/1) ...
[2023-11-19 07:59:43,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d96db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:43, skipping insertion in model container
[2023-11-19 07:59:43,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:43" (1/1) ...
[2023-11-19 07:59:43,265 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:59:43,766 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:59:44,550 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:59:44,565 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:59:44,586 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:59:44,667 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:59:44,847 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:59:44,847 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:59:44,847 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:59:44,847 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:59:44,847 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:59:44,848 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:59:44,856 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:59:44,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:44 WrapperNode
[2023-11-19 07:59:44,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:59:44,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:59:44,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:59:44,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:59:44,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:44" (1/1) ...
[2023-11-19 07:59:44,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:44" (1/1) ...
[2023-11-19 07:59:44,922 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57
[2023-11-19 07:59:44,924 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:59:44,925 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:59:44,925 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:59:44,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:59:44,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:44" (1/1) ...
[2023-11-19 07:59:44,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:44" (1/1) ...
[2023-11-19 07:59:44,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:44" (1/1) ...
[2023-11-19 07:59:44,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:44" (1/1) ...
[2023-11-19 07:59:44,950 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:44" (1/1) ...
[2023-11-19 07:59:44,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:44" (1/1) ...
[2023-11-19 07:59:44,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:44" (1/1) ...
[2023-11-19 07:59:44,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:44" (1/1) ...
[2023-11-19 07:59:44,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:59:44,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:59:44,963 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:59:44,963 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:59:44,964 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:44" (1/1) ...
[2023-11-19 07:59:44,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:59:45,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:59:45,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:59:45,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:59:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-19 07:59:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-19 07:59:45,078 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-19 07:59:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:59:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-19 07:59:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:59:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:59:45,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:59:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:59:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-19 07:59:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1
[2023-11-19 07:59:45,277 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:59:45,279 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:59:45,465 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:59:45,477 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:59:45,480 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:59:45,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:45 BoogieIcfgContainer
[2023-11-19 07:59:45,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:59:45,488 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:59:45,488 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:59:45,492 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:59:45,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:43" (1/3) ...
[2023-11-19 07:59:45,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56824d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:45, skipping insertion in model container
[2023-11-19 07:59:45,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:44" (2/3) ...
[2023-11-19 07:59:45,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56824d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:45, skipping insertion in model container
[2023-11-19 07:59:45,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:45" (3/3) ...
[2023-11-19 07:59:45,498 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i
[2023-11-19 07:59:45,519 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:59:45,519 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-19 07:59:45,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:59:45,604 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;@27795df0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:59:45,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-19 07:59:45,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:59:45,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-11-19 07:59:45,616 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:59:45,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:59:45,617 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 07:59:45,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:59:45,622 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times
[2023-11-19 07:59:45,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:59:45,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723137973]
[2023-11-19 07:59:45,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:59:45,634 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 07:59:45,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:59:45,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/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 07:59:45,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/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 07:59:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:59:45,816 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:59:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:59:45,904 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2023-11-19 07:59:45,906 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:59:45,907 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-19 07:59:45,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-19 07:59:45,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:59:46,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/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 07:59:46,125 INFO L445 BasicCegarLoop]: Path program histogram: [1]
[2023-11-19 07:59:46,130 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:59:46,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:59:46 BoogieIcfgContainer
[2023-11-19 07:59:46,176 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:59:46,178 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:59:46,178 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:59:46,178 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:59:46,179 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:45" (3/4) ...
[2023-11-19 07:59:46,181 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 07:59:46,182 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:59:46,183 INFO L158 Benchmark]: Toolchain (without parser) took 2995.54ms. Allocated memory is still 100.7MB. Free memory was 73.1MB in the beginning and 59.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB.
[2023-11-19 07:59:46,184 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 69.2MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:59:46,185 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1665.31ms. Allocated memory is still 100.7MB. Free memory was 72.8MB in the beginning and 65.4MB in the end (delta: 7.5MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB.
[2023-11-19 07:59:46,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.13ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 62.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:59:46,191 INFO L158 Benchmark]: Boogie Preprocessor took 37.14ms. Allocated memory is still 100.7MB. Free memory was 62.2MB in the beginning and 60.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:59:46,192 INFO L158 Benchmark]: RCFGBuilder took 522.46ms. Allocated memory is still 100.7MB. Free memory was 60.2MB in the beginning and 46.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-19 07:59:46,194 INFO L158 Benchmark]: TraceAbstraction took 687.87ms. Allocated memory is still 100.7MB. Free memory was 45.5MB in the beginning and 60.2MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:59:46,194 INFO L158 Benchmark]: Witness Printer took 4.46ms. Allocated memory is still 100.7MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:59:46,202 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26ms. Allocated memory is still 69.2MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1665.31ms. Allocated memory is still 100.7MB. Free memory was 72.8MB in the beginning and 65.4MB in the end (delta: 7.5MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 67.13ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 62.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 37.14ms. Allocated memory is still 100.7MB. Free memory was 62.2MB in the beginning and 60.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 522.46ms. Allocated memory is still 100.7MB. Free memory was 60.2MB in the beginning and 46.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 687.87ms. Allocated memory is still 100.7MB. Free memory was 45.5MB in the beginning and 60.2MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 4.46ms. Allocated memory is still 100.7MB. Free memory is still 59.6MB. 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: 1586]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1560.
Possible FailurePath:
[L1522] const int GLOBAL_CONST_TRUE = 1;
[L1523] const int GLOBAL_CONST_FALSE = 0;
[L1524] const int GLOBAL_CONST_FIVE = 5;
[L1525] int globalTrue = 1;
[L1526] int globalFalse = 0;
[L1527] int globalFive = 5;
[L1546] int globalArgc = 0;
[L1547] char** globalArgv = ((void *)0);
[L1548] int CWE191_Integer_Underflow__int_fgets_multiply_68_badData;
[L1549] int CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData;
VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1573] CALL printLine("Calling bad()...")
VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, 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)
[L1573] RET printLine("Calling bad()...")
VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, 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]
[L1574] CALL CWE191_Integer_Underflow__int_fgets_multiply_68_bad()
[L1554] int data;
[L1555] data = 0
[L1557] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1558] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1560] EXPR data = atoi(inputBuffer)
[L1557] char inputBuffer[(3 * sizeof(data) + 2)] = "";
[L1556-L1566] {
char inputBuffer[(3 * sizeof(data) + 2)] = "";
if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0))
{
data = atoi(inputBuffer);
}
else
{
printLine("fgets() failed.");
}
}
[L1567] CWE191_Integer_Underflow__int_fgets_multiply_68_badData = data
[L1568] CALL CWE191_Integer_Underflow__int_fgets_multiply_68b_badSink()
[L1583] int data = CWE191_Integer_Underflow__int_fgets_multiply_68_badData;
VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, 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]
[L1584] COND TRUE data < 0
VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, 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]
[L1586] data * 2
VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, 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: 1586]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2023-11-19 07:59:46,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f776f5a-5ea5-49ca-8b1e-c67ff4be1dd8/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