./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1 --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 8ed9c85949a16856c9f15031fec24cb827e576ae518a401576d428e5f7d6073b
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 13:04:43,500 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 13:04:43,559 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-12-02 13:04:43,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 13:04:43,564 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 13:04:43,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 13:04:43,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 13:04:43,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 13:04:43,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 13:04:43,587 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 13:04:43,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 13:04:43,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 13:04:43,588 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 13:04:43,588 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 13:04:43,588 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 13:04:43,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 13:04:43,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 13:04:43,588 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 13:04:43,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 13:04:43,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 13:04:43,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 13:04:43,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 13:04:43,589 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-02 13:04:43,589 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 13:04:43,589 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 13:04:43,589 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 13:04:43,589 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 13:04:43,589 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 13:04:43,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 13:04:43,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 13:04:43,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 13:04:43,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 13:04:43,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 13:04:43,590 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 13:04:43,590 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 13:04:43,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 13:04:43,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 13:04:43,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 13:04:43,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 13:04:43,590 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 13:04:43,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 13:04:43,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 13:04:43,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 13:04:43,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 13:04:43,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 13:04:43,591 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 13:04:43,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 13:04:43,591 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1
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 -> 8ed9c85949a16856c9f15031fec24cb827e576ae518a401576d428e5f7d6073b
[2024-12-02 13:04:43,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 13:04:43,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 13:04:43,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 13:04:43,833 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 13:04:43,834 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 13:04:43,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i
[2024-12-02 13:04:46,463 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/data/97149a6b8/a1034cb62900487babd8ed6cdc74881a/FLAG41230ee46
[2024-12-02 13:04:46,791 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 13:04:46,792 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i
[2024-12-02 13:04:46,808 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/data/97149a6b8/a1034cb62900487babd8ed6cdc74881a/FLAG41230ee46
[2024-12-02 13:04:47,045 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/data/97149a6b8/a1034cb62900487babd8ed6cdc74881a
[2024-12-02 13:04:47,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 13:04:47,048 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 13:04:47,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 13:04:47,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 13:04:47,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 13:04:47,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16817ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47, skipping insertion in model container
[2024-12-02 13:04:47,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,087 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 13:04:47,742 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 13:04:47,750 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 13:04:47,823 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 13:04:47,903 INFO L204 MainTranslator]: Completed translation
[2024-12-02 13:04:47,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47 WrapperNode
[2024-12-02 13:04:47,904 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 13:04:47,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 13:04:47,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 13:04:47,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 13:04:47,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,935 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,954 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69
[2024-12-02 13:04:47,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 13:04:47,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 13:04:47,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 13:04:47,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 13:04:47,961 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,963 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,975 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0].
[2024-12-02 13:04:47,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,980 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 13:04:47,988 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 13:04:47,988 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 13:04:47,988 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 13:04:47,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (1/1) ...
[2024-12-02 13:04:47,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 13:04:48,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 13:04:48,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 13:04:48,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 13:04:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-12-02 13:04:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-12-02 13:04:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 13:04:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 13:04:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 13:04:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue
[2024-12-02 13:04:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue
[2024-12-02 13:04:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 13:04:48,152 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 13:04:48,153 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 13:04:48,259 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live.
[2024-12-02 13:04:48,259 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 13:04:48,267 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 13:04:48,267 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 13:04:48,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:04:48 BoogieIcfgContainer
[2024-12-02 13:04:48,268 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 13:04:48,270 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 13:04:48,270 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 13:04:48,274 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 13:04:48,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:04:47" (1/3) ...
[2024-12-02 13:04:48,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496f02ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:04:48, skipping insertion in model container
[2024-12-02 13:04:48,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:47" (2/3) ...
[2024-12-02 13:04:48,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496f02ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:04:48, skipping insertion in model container
[2024-12-02 13:04:48,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:04:48" (3/3) ...
[2024-12-02 13:04:48,276 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i
[2024-12-02 13:04:48,291 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 13:04:48,293 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i that has 3 procedures, 32 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-12-02 13:04:48,341 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 13:04:48,353 INFO L333 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, 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;@5b6ff2a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 13:04:48,353 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-12-02 13:04:48,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-12-02 13:04:48,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-12-02 13:04:48,364 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:04:48,365 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:04:48,365 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-02 13:04:48,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:04:48,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1811171087, now seen corresponding path program 1 times
[2024-12-02 13:04:48,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:04:48,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030612412]
[2024-12-02 13:04:48,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:04:48,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:04:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:04:48,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-12-02 13:04:48,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:04:48,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030612412]
[2024-12-02 13:04:48,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030612412] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 13:04:48,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626550363]
[2024-12-02 13:04:48,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:04:48,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 13:04:48,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 13:04:48,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 13:04:48,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 13:04:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:04:48,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-12-02 13:04:48,704 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 13:04:48,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-12-02 13:04:48,751 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 13:04:48,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626550363] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:04:48,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 13:04:48,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5
[2024-12-02 13:04:48,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508690934]
[2024-12-02 13:04:48,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:04:48,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 13:04:48,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:04:48,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 13:04:48,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 13:04:48,774 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 13:04:48,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 13:04:48,803 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions.
[2024-12-02 13:04:48,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 13:04:48,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22
[2024-12-02 13:04:48,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 13:04:48,809 INFO L225 Difference]: With dead ends: 53
[2024-12-02 13:04:48,809 INFO L226 Difference]: Without dead ends: 24
[2024-12-02 13:04:48,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 13:04:48,813 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 4 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 13:04:48,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 69 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 13:04:48,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2024-12-02 13:04:48,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2024-12-02 13:04:48,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 13:04:48,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions.
[2024-12-02 13:04:48,840 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 22
[2024-12-02 13:04:48,841 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 13:04:48,841 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions.
[2024-12-02 13:04:48,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 13:04:48,842 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions.
[2024-12-02 13:04:48,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-12-02 13:04:48,843 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:04:48,843 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:04:48,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 13:04:49,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 13:04:49,044 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-02 13:04:49,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:04:49,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1344832596, now seen corresponding path program 1 times
[2024-12-02 13:04:49,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:04:49,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801111919]
[2024-12-02 13:04:49,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:04:49,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:04:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 13:04:49,078 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 13:04:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 13:04:49,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 13:04:49,110 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 13:04:49,111 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-12-02 13:04:49,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-12-02 13:04:49,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 13:04:49,115 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-12-02 13:04:49,139 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 13:04:49,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:04:49 BoogieIcfgContainer
[2024-12-02 13:04:49,142 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 13:04:49,143 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 13:04:49,143 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 13:04:49,143 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 13:04:49,144 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:04:48" (3/4) ...
[2024-12-02 13:04:49,146 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-12-02 13:04:49,146 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 13:04:49,147 INFO L158 Benchmark]: Toolchain (without parser) took 2099.56ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 55.8MB in the end (delta: 58.2MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB.
[2024-12-02 13:04:49,147 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 13:04:49,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 855.48ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 53.2MB in the end (delta: 60.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB.
[2024-12-02 13:04:49,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.31ms. Allocated memory is still 142.6MB. Free memory was 53.2MB in the beginning and 112.5MB in the end (delta: -59.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB.
[2024-12-02 13:04:49,148 INFO L158 Benchmark]: Boogie Preprocessor took 32.68ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 110.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 13:04:49,148 INFO L158 Benchmark]: RCFGBuilder took 280.07ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 97.8MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 13:04:49,149 INFO L158 Benchmark]: TraceAbstraction took 872.47ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 55.8MB in the end (delta: 41.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB.
[2024-12-02 13:04:49,149 INFO L158 Benchmark]: Witness Printer took 3.65ms. Allocated memory is still 142.6MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 13:04:49,151 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 855.48ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 53.2MB in the end (delta: 60.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 49.31ms. Allocated memory is still 142.6MB. Free memory was 53.2MB in the beginning and 112.5MB in the end (delta: -59.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 32.68ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 110.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 280.07ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 97.8MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 872.47ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 55.8MB in the end (delta: 41.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB.
* Witness Printer took 3.65ms. Allocated memory is still 142.6MB. Free memory is still 55.8MB. 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: 1578]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1566, overapproximation of fgets at line 1564.
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]
[L1586] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1414] COND TRUE line != ((void *)0)
[L1586] RET 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]
[L1587] CALL CWE191_Integer_Underflow__int_fgets_multiply_08_bad()
[L1558] int data;
[L1559] 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]
[L1560] CALL staticReturnsTrue()
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1550] return 1;
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1560] RET staticReturnsTrue()
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]
[L1560] COND TRUE staticReturnsTrue()
[L1563] char inputBuffer[(3 * sizeof(data) + 2)] = "";
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]
[L1564] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1566] data = atoi(inputBuffer)
[L1574] CALL staticReturnsTrue()
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1550] return 1;
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1574] RET staticReturnsTrue()
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]
[L1574] COND TRUE staticReturnsTrue()
[L1576] 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]
[L1578] data * 2
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1578]: 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 3 procedures, 32 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 45 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 91 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 4/6 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, ConComCheckerStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-12-02 13:04:49,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1 --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 8ed9c85949a16856c9f15031fec24cb827e576ae518a401576d428e5f7d6073b
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 13:04:51,091 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 13:04:51,168 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2024-12-02 13:04:51,175 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 13:04:51,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 13:04:51,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2024-12-02 13:04:51,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 13:04:51,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 13:04:51,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 13:04:51,198 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 13:04:51,198 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 13:04:51,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 13:04:51,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 13:04:51,199 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 13:04:51,199 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 13:04:51,199 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 13:04:51,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 13:04:51,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 13:04:51,199 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 13:04:51,199 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 13:04:51,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 13:04:51,200 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 13:04:51,200 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 13:04:51,200 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-12-02 13:04:51,200 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-02 13:04:51,200 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-12-02 13:04:51,200 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 13:04:51,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 13:04:51,200 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 13:04:51,200 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 13:04:51,200 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 13:04:51,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 13:04:51,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 13:04:51,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 13:04:51,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 13:04:51,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 13:04:51,201 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 13:04:51,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 13:04:51,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 13:04:51,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 13:04:51,201 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 13:04:51,201 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 13:04:51,201 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 13:04:51,201 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 13:04:51,202 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-12-02 13:04:51,202 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-12-02 13:04:51,202 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 13:04:51,202 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 13:04:51,202 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 13:04:51,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 13:04:51,202 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1
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 -> 8ed9c85949a16856c9f15031fec24cb827e576ae518a401576d428e5f7d6073b
[2024-12-02 13:04:51,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 13:04:51,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 13:04:51,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 13:04:51,458 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 13:04:51,458 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 13:04:51,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i
[2024-12-02 13:04:54,174 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/data/32ddfabf8/4acba6a5762e4217ae494362536e58ae/FLAG6658b0771
[2024-12-02 13:04:54,461 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 13:04:54,462 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i
[2024-12-02 13:04:54,482 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/data/32ddfabf8/4acba6a5762e4217ae494362536e58ae/FLAG6658b0771
[2024-12-02 13:04:54,495 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/data/32ddfabf8/4acba6a5762e4217ae494362536e58ae
[2024-12-02 13:04:54,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 13:04:54,499 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 13:04:54,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 13:04:54,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 13:04:54,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 13:04:54,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:04:54" (1/1) ...
[2024-12-02 13:04:54,505 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cef9e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:54, skipping insertion in model container
[2024-12-02 13:04:54,505 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:04:54" (1/1) ...
[2024-12-02 13:04:54,538 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 13:04:55,178 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 13:04:55,188 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 13:04:55,283 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 13:04:55,387 INFO L204 MainTranslator]: Completed translation
[2024-12-02 13:04:55,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55 WrapperNode
[2024-12-02 13:04:55,387 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 13:04:55,388 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 13:04:55,389 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 13:04:55,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 13:04:55,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (1/1) ...
[2024-12-02 13:04:55,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (1/1) ...
[2024-12-02 13:04:55,429 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66
[2024-12-02 13:04:55,429 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 13:04:55,430 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 13:04:55,430 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 13:04:55,430 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 13:04:55,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (1/1) ...
[2024-12-02 13:04:55,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (1/1) ...
[2024-12-02 13:04:55,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (1/1) ...
[2024-12-02 13:04:55,453 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0].
[2024-12-02 13:04:55,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (1/1) ...
[2024-12-02 13:04:55,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (1/1) ...
[2024-12-02 13:04:55,461 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (1/1) ...
[2024-12-02 13:04:55,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (1/1) ...
[2024-12-02 13:04:55,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (1/1) ...
[2024-12-02 13:04:55,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (1/1) ...
[2024-12-02 13:04:55,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (1/1) ...
[2024-12-02 13:04:55,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 13:04:55,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 13:04:55,470 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 13:04:55,470 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 13:04:55,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (1/1) ...
[2024-12-02 13:04:55,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 13:04:55,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 13:04:55,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 13:04:55,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 13:04:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-12-02 13:04:55,523 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-12-02 13:04:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-12-02 13:04:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 13:04:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 13:04:55,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 13:04:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue
[2024-12-02 13:04:55,523 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue
[2024-12-02 13:04:55,631 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 13:04:55,633 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 13:04:55,751 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live.
[2024-12-02 13:04:55,751 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 13:04:55,759 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 13:04:55,759 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 13:04:55,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:04:55 BoogieIcfgContainer
[2024-12-02 13:04:55,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 13:04:55,761 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 13:04:55,762 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 13:04:55,765 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 13:04:55,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:04:54" (1/3) ...
[2024-12-02 13:04:55,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b489b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:04:55, skipping insertion in model container
[2024-12-02 13:04:55,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:55" (2/3) ...
[2024-12-02 13:04:55,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b489b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:04:55, skipping insertion in model container
[2024-12-02 13:04:55,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:04:55" (3/3) ...
[2024-12-02 13:04:55,767 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i
[2024-12-02 13:04:55,778 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 13:04:55,779 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i that has 3 procedures, 30 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-12-02 13:04:55,822 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 13:04:55,831 INFO L333 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, 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;@24a5bd29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 13:04:55,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-12-02 13:04:55,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-12-02 13:04:55,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2024-12-02 13:04:55,840 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:04:55,841 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:04:55,841 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-02 13:04:55,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:04:55,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1814819498, now seen corresponding path program 1 times
[2024-12-02 13:04:55,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 13:04:55,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186433616]
[2024-12-02 13:04:55,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:04:55,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 13:04:55,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 13:04:55,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 13:04:55,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 13:04:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:04:55,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 13:04:55,959 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 13:04:56,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 13:04:56,020 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 13:04:56,021 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 13:04:56,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186433616]
[2024-12-02 13:04:56,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186433616] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:04:56,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 13:04:56,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 13:04:56,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114838681]
[2024-12-02 13:04:56,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:04:56,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 13:04:56,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 13:04:56,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 13:04:56,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 13:04:56,042 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 13:04:56,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 13:04:56,069 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions.
[2024-12-02 13:04:56,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 13:04:56,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20
[2024-12-02 13:04:56,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 13:04:56,075 INFO L225 Difference]: With dead ends: 51
[2024-12-02 13:04:56,075 INFO L226 Difference]: Without dead ends: 23
[2024-12-02 13:04:56,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 13:04:56,080 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 13:04:56,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 13:04:56,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2024-12-02 13:04:56,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2024-12-02 13:04:56,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 13:04:56,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions.
[2024-12-02 13:04:56,107 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 20
[2024-12-02 13:04:56,108 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 13:04:56,108 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions.
[2024-12-02 13:04:56,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 13:04:56,109 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions.
[2024-12-02 13:04:56,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-12-02 13:04:56,110 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:04:56,110 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:04:56,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 13:04:56,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 13:04:56,311 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-02 13:04:56,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:04:56,311 INFO L85 PathProgramCache]: Analyzing trace with hash -761264401, now seen corresponding path program 1 times
[2024-12-02 13:04:56,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 13:04:56,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153329584]
[2024-12-02 13:04:56,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:04:56,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 13:04:56,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 13:04:56,314 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 13:04:56,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 13:04:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 13:04:56,405 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 13:04:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 13:04:56,448 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace
[2024-12-02 13:04:56,448 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 13:04:56,451 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-12-02 13:04:56,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-12-02 13:04:56,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 13:04:56,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 13:04:56,655 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-12-02 13:04:56,675 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 13:04:56,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:04:56 BoogieIcfgContainer
[2024-12-02 13:04:56,678 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 13:04:56,678 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 13:04:56,678 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 13:04:56,678 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 13:04:56,679 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:04:55" (3/4) ...
[2024-12-02 13:04:56,680 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-12-02 13:04:56,681 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 13:04:56,682 INFO L158 Benchmark]: Toolchain (without parser) took 2183.04ms. Allocated memory is still 92.3MB. Free memory was 67.3MB in the beginning and 43.1MB in the end (delta: 24.2MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB.
[2024-12-02 13:04:56,682 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 13:04:56,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 888.14ms. Allocated memory is still 92.3MB. Free memory was 67.1MB in the beginning and 63.2MB in the end (delta: 3.9MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB.
[2024-12-02 13:04:56,682 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.67ms. Allocated memory is still 92.3MB. Free memory was 63.2MB in the beginning and 60.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 13:04:56,683 INFO L158 Benchmark]: Boogie Preprocessor took 39.84ms. Allocated memory is still 92.3MB. Free memory was 60.5MB in the beginning and 58.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 13:04:56,683 INFO L158 Benchmark]: RCFGBuilder took 289.65ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 45.0MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 13:04:56,683 INFO L158 Benchmark]: TraceAbstraction took 916.13ms. Allocated memory is still 92.3MB. Free memory was 44.1MB in the beginning and 43.7MB in the end (delta: 433.4kB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB.
[2024-12-02 13:04:56,684 INFO L158 Benchmark]: Witness Printer took 2.84ms. Allocated memory is still 92.3MB. Free memory was 43.7MB in the beginning and 43.1MB in the end (delta: 533.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 13:04:56,685 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 888.14ms. Allocated memory is still 92.3MB. Free memory was 67.1MB in the beginning and 63.2MB in the end (delta: 3.9MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 40.67ms. Allocated memory is still 92.3MB. Free memory was 63.2MB in the beginning and 60.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 39.84ms. Allocated memory is still 92.3MB. Free memory was 60.5MB in the beginning and 58.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 289.65ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 45.0MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 916.13ms. Allocated memory is still 92.3MB. Free memory was 44.1MB in the beginning and 43.7MB in the end (delta: 433.4kB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB.
* Witness Printer took 2.84ms. Allocated memory is still 92.3MB. Free memory was 43.7MB in the beginning and 43.1MB in the end (delta: 533.9kB). 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: 1578]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1566, overapproximation of fgets at line 1564.
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]
[L1586] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1414] COND TRUE line != ((void *)0)
[L1586] RET 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]
[L1587] CALL CWE191_Integer_Underflow__int_fgets_multiply_08_bad()
[L1558] int data;
[L1559] 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]
[L1560] CALL staticReturnsTrue()
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1550] return 1;
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1560] RET staticReturnsTrue()
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]
[L1560] COND TRUE staticReturnsTrue()
[L1563] char inputBuffer[(3 * sizeof(data) + 2)] = "";
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]
[L1564] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1566] data = atoi(inputBuffer)
[L1574] CALL staticReturnsTrue()
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1550] return 1;
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1574] RET staticReturnsTrue()
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]
[L1574] COND TRUE staticReturnsTrue()
[L1576] 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]
[L1578] data * 2
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1578]: 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 3 procedures, 30 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 35 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 53 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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, ConComCheckerStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-12-02 13:04:56,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a253c71-9e1a-4d88-b345-c6f3b7e3d3b3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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