./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_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_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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 4a2ffd715bb237e27de081f3fb509e4759707f61fe3957e5688adb5c1e28a582
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 08:03:06,611 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 08:03:06,737 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2023-11-19 08:03:06,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 08:03:06,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 08:03:06,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 08:03:06,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 08:03:06,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 08:03:06,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 08:03:06,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 08:03:06,792 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 08:03:06,793 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 08:03:06,793 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 08:03:06,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 08:03:06,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 08:03:06,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 08:03:06,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 08:03:06,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 08:03:06,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 08:03:06,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 08:03:06,798 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 08:03:06,799 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 08:03:06,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 08:03:06,799 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 08:03:06,800 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 08:03:06,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 08:03:06,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 08:03:06,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:03:06,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 08:03:06,803 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 08:03:06,804 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 08:03:06,804 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 08:03:06,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 08:03:06,805 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 08:03:06,805 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 08:03:06,805 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 08:03:06,805 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 08:03:06,806 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 08:03:06,806 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_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a2ffd715bb237e27de081f3fb509e4759707f61fe3957e5688adb5c1e28a582
[2023-11-19 08:03:07,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 08:03:07,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 08:03:07,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 08:03:07,220 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 08:03:07,221 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 08:03:07,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i
[2023-11-19 08:03:10,429 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 08:03:10,864 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 08:03:10,865 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i
[2023-11-19 08:03:10,902 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/data/d2a04a9cc/51872e7772604329a1b04acb073ff8c0/FLAG34182763d
[2023-11-19 08:03:10,921 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/data/d2a04a9cc/51872e7772604329a1b04acb073ff8c0
[2023-11-19 08:03:10,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 08:03:10,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 08:03:10,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 08:03:10,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 08:03:10,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 08:03:10,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:10" (1/1) ...
[2023-11-19 08:03:10,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@682b83ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:10, skipping insertion in model container
[2023-11-19 08:03:10,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:10" (1/1) ...
[2023-11-19 08:03:11,037 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 08:03:11,520 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 08:03:12,128 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:03:12,141 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 08:03:12,162 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 08:03:12,245 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:03:12,474 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:03:12,474 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:03:12,475 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:03:12,475 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:03:12,475 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:03:12,475 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:03:12,483 INFO L206 MainTranslator]: Completed translation
[2023-11-19 08:03:12,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12 WrapperNode
[2023-11-19 08:03:12,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 08:03:12,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 08:03:12,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 08:03:12,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 08:03:12,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12" (1/1) ...
[2023-11-19 08:03:12,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12" (1/1) ...
[2023-11-19 08:03:12,577 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55
[2023-11-19 08:03:12,578 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 08:03:12,579 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 08:03:12,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 08:03:12,579 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 08:03:12,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12" (1/1) ...
[2023-11-19 08:03:12,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12" (1/1) ...
[2023-11-19 08:03:12,610 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12" (1/1) ...
[2023-11-19 08:03:12,610 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12" (1/1) ...
[2023-11-19 08:03:12,616 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12" (1/1) ...
[2023-11-19 08:03:12,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12" (1/1) ...
[2023-11-19 08:03:12,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12" (1/1) ...
[2023-11-19 08:03:12,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12" (1/1) ...
[2023-11-19 08:03:12,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 08:03:12,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 08:03:12,643 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 08:03:12,643 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 08:03:12,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12" (1/1) ...
[2023-11-19 08:03:12,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:03:12,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:03:12,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 08:03:12,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 08:03:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-19 08:03:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-19 08:03:12,736 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-19 08:03:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 08:03:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2023-11-19 08:03:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 08:03:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 08:03:12,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 08:03:12,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 08:03:12,738 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-19 08:03:12,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 08:03:12,935 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 08:03:12,937 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 08:03:13,070 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 08:03:13,078 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 08:03:13,078 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 08:03:13,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:13 BoogieIcfgContainer
[2023-11-19 08:03:13,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 08:03:13,086 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 08:03:13,086 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 08:03:13,090 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 08:03:13,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:03:10" (1/3) ...
[2023-11-19 08:03:13,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49aca05d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:13, skipping insertion in model container
[2023-11-19 08:03:13,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12" (2/3) ...
[2023-11-19 08:03:13,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49aca05d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:13, skipping insertion in model container
[2023-11-19 08:03:13,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:13" (3/3) ...
[2023-11-19 08:03:13,093 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i
[2023-11-19 08:03:13,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 08:03:13,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-19 08:03:13,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 08:03:13,201 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;@3c0c08fa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 08:03:13,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-19 08:03:13,206 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 08:03:13,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-11-19 08:03:13,215 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:03:13,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:03:13,217 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 08:03:13,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:03:13,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times
[2023-11-19 08:03:13,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:03:13,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091797441]
[2023-11-19 08:03:13,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:03:13,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:03:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:03:13,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-19 08:03:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:03:13,543 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 08:03:13,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:03:13,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091797441]
[2023-11-19 08:03:13,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091797441] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:03:13,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:03:13,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 08:03:13,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436296747]
[2023-11-19 08:03:13,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:03:13,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 08:03:13,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:03:13,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 08:03:13,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 08:03:13,589 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 08:03:13,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:03:13,643 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions.
[2023-11-19 08:03:13,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 08:03:13,646 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 08:03:13,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:03:13,654 INFO L225 Difference]: With dead ends: 42
[2023-11-19 08:03:13,654 INFO L226 Difference]: Without dead ends: 18
[2023-11-19 08:03:13,657 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 08:03:13,664 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 08:03:13,666 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 08:03:13,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2023-11-19 08:03:13,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2023-11-19 08:03:13,713 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 08:03:13,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions.
[2023-11-19 08:03:13,717 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12
[2023-11-19 08:03:13,718 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:03:13,719 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions.
[2023-11-19 08:03:13,721 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 08:03:13,721 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions.
[2023-11-19 08:03:13,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-11-19 08:03:13,722 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:03:13,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:03:13,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 08:03:13,723 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 08:03:13,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:03:13,724 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times
[2023-11-19 08:03:13,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:03:13,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273557758]
[2023-11-19 08:03:13,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:03:13,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:03:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:13,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:03:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:13,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:03:13,888 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 08:03:13,890 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-19 08:03:13,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-19 08:03:13,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 08:03:13,897 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-19 08:03:13,901 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 08:03:13,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:03:13 BoogieIcfgContainer
[2023-11-19 08:03:13,958 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 08:03:13,959 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 08:03:13,960 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 08:03:13,960 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 08:03:13,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:13" (3/4) ...
[2023-11-19 08:03:13,965 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 08:03:13,966 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 08:03:13,967 INFO L158 Benchmark]: Toolchain (without parser) took 3038.33ms. Allocated memory is still 144.7MB. Free memory was 96.3MB in the beginning and 105.4MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:03:13,968 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory is still 119.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:03:13,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1552.72ms. Allocated memory is still 144.7MB. Free memory was 96.3MB in the beginning and 96.9MB in the end (delta: -608.4kB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB.
[2023-11-19 08:03:13,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.06ms. Allocated memory is still 144.7MB. Free memory was 96.9MB in the beginning and 94.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:03:13,975 INFO L158 Benchmark]: Boogie Preprocessor took 63.82ms. Allocated memory is still 144.7MB. Free memory was 94.2MB in the beginning and 92.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:03:13,979 INFO L158 Benchmark]: RCFGBuilder took 440.48ms. Allocated memory is still 144.7MB. Free memory was 92.6MB in the beginning and 79.4MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-11-19 08:03:13,979 INFO L158 Benchmark]: TraceAbstraction took 872.98ms. Allocated memory is still 144.7MB. Free memory was 78.6MB in the beginning and 106.3MB in the end (delta: -27.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:03:13,980 INFO L158 Benchmark]: Witness Printer took 7.37ms. Allocated memory is still 144.7MB. Free memory was 106.3MB in the beginning and 105.4MB in the end (delta: 845.0kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:03:13,986 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory is still 119.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1552.72ms. Allocated memory is still 144.7MB. Free memory was 96.3MB in the beginning and 96.9MB in the end (delta: -608.4kB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 92.06ms. Allocated memory is still 144.7MB. Free memory was 96.9MB in the beginning and 94.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 63.82ms. Allocated memory is still 144.7MB. Free memory was 94.2MB in the beginning and 92.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 440.48ms. Allocated memory is still 144.7MB. Free memory was 92.6MB in the beginning and 79.4MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 872.98ms. Allocated memory is still 144.7MB. Free memory was 78.6MB in the beginning and 106.3MB in the end (delta: -27.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 7.37ms. Allocated memory is still 144.7MB. Free memory was 106.3MB in the beginning and 105.4MB in the end (delta: 845.0kB). 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)=1073741829, argc=1073741829, argv={1073741827:1073741830}, argv={1073741827:1073741830}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1579] CALL CWE191_Integer_Underflow__int_fgets_multiply_14_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 globalFive==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 globalFive==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, 0.1s 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 08:03:14,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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 4a2ffd715bb237e27de081f3fb509e4759707f61fe3957e5688adb5c1e28a582
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 08:03:16,710 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 08:03:16,855 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2023-11-19 08:03:16,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 08:03:16,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 08:03:16,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2023-11-19 08:03:16,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 08:03:16,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 08:03:16,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 08:03:16,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 08:03:16,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 08:03:16,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 08:03:16,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 08:03:16,922 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 08:03:16,923 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 08:03:16,923 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 08:03:16,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 08:03:16,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 08:03:16,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 08:03:16,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 08:03:16,925 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 08:03:16,926 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-19 08:03:16,926 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 08:03:16,927 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-19 08:03:16,927 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 08:03:16,928 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 08:03:16,928 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 08:03:16,929 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 08:03:16,929 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 08:03:16,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 08:03:16,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:03:16,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 08:03:16,932 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 08:03:16,932 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 08:03:16,933 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-19 08:03:16,933 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-19 08:03:16,933 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 08:03:16,933 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 08:03:16,934 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 08:03:16,935 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 08:03:16,935 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-19 08:03:16,935 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 08:03:16,936 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_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a2ffd715bb237e27de081f3fb509e4759707f61fe3957e5688adb5c1e28a582
[2023-11-19 08:03:17,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 08:03:17,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 08:03:17,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 08:03:17,342 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 08:03:17,343 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 08:03:17,344 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i
[2023-11-19 08:03:20,678 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 08:03:21,173 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 08:03:21,174 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i
[2023-11-19 08:03:21,205 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/data/a3f94896b/7b7cb57fee1547efac6cc26ca2579bfb/FLAG5aff092d4
[2023-11-19 08:03:21,218 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/data/a3f94896b/7b7cb57fee1547efac6cc26ca2579bfb
[2023-11-19 08:03:21,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 08:03:21,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 08:03:21,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 08:03:21,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 08:03:21,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 08:03:21,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:21" (1/1) ...
[2023-11-19 08:03:21,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79bc4f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:21, skipping insertion in model container
[2023-11-19 08:03:21,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:21" (1/1) ...
[2023-11-19 08:03:21,311 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 08:03:21,833 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 08:03:22,453 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:03:22,483 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 08:03:22,517 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 08:03:22,579 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:03:22,775 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:03:22,776 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:03:22,776 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:03:22,776 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:03:22,776 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:03:22,777 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:03:22,784 INFO L206 MainTranslator]: Completed translation
[2023-11-19 08:03:22,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:22 WrapperNode
[2023-11-19 08:03:22,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 08:03:22,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 08:03:22,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 08:03:22,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 08:03:22,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:22" (1/1) ...
[2023-11-19 08:03:22,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:22" (1/1) ...
[2023-11-19 08:03:22,878 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54
[2023-11-19 08:03:22,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 08:03:22,880 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 08:03:22,880 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 08:03:22,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 08:03:22,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:22" (1/1) ...
[2023-11-19 08:03:22,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:22" (1/1) ...
[2023-11-19 08:03:22,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:22" (1/1) ...
[2023-11-19 08:03:22,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:22" (1/1) ...
[2023-11-19 08:03:22,918 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:22" (1/1) ...
[2023-11-19 08:03:22,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:22" (1/1) ...
[2023-11-19 08:03:22,934 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:22" (1/1) ...
[2023-11-19 08:03:22,946 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:22" (1/1) ...
[2023-11-19 08:03:22,950 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 08:03:22,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 08:03:22,954 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 08:03:22,954 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 08:03:22,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:22" (1/1) ...
[2023-11-19 08:03:22,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:03:22,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:03:22,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 08:03:22,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 08:03:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2023-11-19 08:03:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-11-19 08:03:23,025 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-11-19 08:03:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 08:03:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-19 08:03:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 08:03:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 08:03:23,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 08:03:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 08:03:23,029 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-11-19 08:03:23,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1
[2023-11-19 08:03:23,203 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 08:03:23,206 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 08:03:23,443 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 08:03:23,456 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 08:03:23,457 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 08:03:23,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:23 BoogieIcfgContainer
[2023-11-19 08:03:23,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 08:03:23,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 08:03:23,465 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 08:03:23,468 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 08:03:23,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:03:21" (1/3) ...
[2023-11-19 08:03:23,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4451edce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:23, skipping insertion in model container
[2023-11-19 08:03:23,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:22" (2/3) ...
[2023-11-19 08:03:23,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4451edce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:23, skipping insertion in model container
[2023-11-19 08:03:23,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:23" (3/3) ...
[2023-11-19 08:03:23,476 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i
[2023-11-19 08:03:23,495 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 08:03:23,496 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-19 08:03:23,555 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 08:03:23,563 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;@3fd407cb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 08:03:23,563 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-19 08:03:23,567 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 08:03:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-11-19 08:03:23,575 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:03:23,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:03:23,577 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 08:03:23,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:03:23,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times
[2023-11-19 08:03:23,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 08:03:23,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109481750]
[2023-11-19 08:03:23,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:03:23,597 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 08:03:23,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 08:03:23,603 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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 08:03:23,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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 08:03:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:03:23,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 08:03:23,787 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:03:23,842 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 08:03:23,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 08:03:23,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 08:03:23,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109481750]
[2023-11-19 08:03:23,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109481750] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:03:23,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:03:23,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 08:03:23,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583658370]
[2023-11-19 08:03:23,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:03:23,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 08:03:23,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 08:03:23,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 08:03:23,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 08:03:23,882 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 08:03:23,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:03:23,922 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions.
[2023-11-19 08:03:23,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 08:03:23,924 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 08:03:23,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:03:23,932 INFO L225 Difference]: With dead ends: 42
[2023-11-19 08:03:23,932 INFO L226 Difference]: Without dead ends: 18
[2023-11-19 08:03:23,935 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 08:03:23,940 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 08:03:23,941 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 08:03:23,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2023-11-19 08:03:23,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2023-11-19 08:03:23,973 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 08:03:23,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions.
[2023-11-19 08:03:23,975 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12
[2023-11-19 08:03:23,976 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:03:23,977 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions.
[2023-11-19 08:03:23,977 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 08:03:23,978 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions.
[2023-11-19 08:03:23,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-11-19 08:03:23,979 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:03:23,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:03:23,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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 08:03:24,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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 08:03:24,185 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 08:03:24,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:03:24,186 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times
[2023-11-19 08:03:24,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 08:03:24,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093760203]
[2023-11-19 08:03:24,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:03:24,187 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 08:03:24,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 08:03:24,189 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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 08:03:24,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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 08:03:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:24,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:03:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:24,420 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2023-11-19 08:03:24,420 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 08:03:24,422 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-19 08:03:24,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-19 08:03:24,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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 08:03:24,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/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 08:03:24,632 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-19 08:03:24,635 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 08:03:24,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:03:24 BoogieIcfgContainer
[2023-11-19 08:03:24,676 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 08:03:24,677 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 08:03:24,677 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 08:03:24,677 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 08:03:24,678 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:23" (3/4) ...
[2023-11-19 08:03:24,679 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 08:03:24,680 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 08:03:24,681 INFO L158 Benchmark]: Toolchain (without parser) took 3458.61ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 47.4MB in the beginning and 79.8MB in the end (delta: -32.3MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB.
[2023-11-19 08:03:24,681 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 75.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:03:24,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1561.97ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 47.3MB in the beginning and 60.5MB in the end (delta: -13.2MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB.
[2023-11-19 08:03:24,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.43ms. Allocated memory is still 92.3MB. Free memory was 60.5MB in the beginning and 57.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-19 08:03:24,684 INFO L158 Benchmark]: Boogie Preprocessor took 72.70ms. Allocated memory is still 92.3MB. Free memory was 57.7MB in the beginning and 55.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:03:24,684 INFO L158 Benchmark]: RCFGBuilder took 508.24ms. Allocated memory is still 92.3MB. Free memory was 55.2MB in the beginning and 41.5MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-11-19 08:03:24,685 INFO L158 Benchmark]: TraceAbstraction took 1211.98ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 40.5MB in the beginning and 79.8MB in the end (delta: -39.2MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB.
[2023-11-19 08:03:24,686 INFO L158 Benchmark]: Witness Printer took 3.56ms. Allocated memory is still 111.1MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:03:24,689 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 75.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1561.97ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 47.3MB in the beginning and 60.5MB in the end (delta: -13.2MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 92.43ms. Allocated memory is still 92.3MB. Free memory was 60.5MB in the beginning and 57.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 72.70ms. Allocated memory is still 92.3MB. Free memory was 57.7MB in the beginning and 55.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 508.24ms. Allocated memory is still 92.3MB. Free memory was 55.2MB in the beginning and 41.5MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 1211.98ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 40.5MB in the beginning and 79.8MB in the end (delta: -39.2MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB.
* Witness Printer took 3.56ms. Allocated memory is still 111.1MB. Free memory is still 79.8MB. 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_14_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 globalFive==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 globalFive==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: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 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 08:03:24,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce5b4895-01a5-46a5-98fa-1f307e89e74f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample