./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC --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 aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 18:21:32,589 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 18:21:32,685 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-11-23 18:21:32,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 18:21:32,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 18:21:32,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 18:21:32,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 18:21:32,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 18:21:32,732 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 18:21:32,732 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 18:21:32,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 18:21:32,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 18:21:32,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 18:21:32,734 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 18:21:32,734 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 18:21:32,734 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 18:21:32,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 18:21:32,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 18:21:32,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 18:21:32,735 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 18:21:32,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 18:21:32,735 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 18:21:32,735 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-23 18:21:32,735 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-23 18:21:32,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 18:21:32,736 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 18:21:32,736 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 18:21:32,736 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 18:21:32,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 18:21:32,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 18:21:32,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 18:21:32,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:21:32,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 18:21:32,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 18:21:32,737 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 18:21:32,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 18:21:32,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:21:32,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 18:21:32,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 18:21:32,737 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 18:21:32,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 18:21:32,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 18:21:32,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 18:21:32,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 18:21:32,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 18:21:32,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 18:21:32,738 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 18:21:32,738 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_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC
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 -> aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57
[2024-11-23 18:21:33,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 18:21:33,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 18:21:33,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 18:21:33,095 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 18:21:33,095 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 18:21:33,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i
[2024-11-23 18:21:36,213 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/data/4995d1bf7/9c627ba34c14445f9662c4a7369ae7e8/FLAGa0439858b
[2024-11-23 18:21:36,696 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 18:21:36,700 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i
[2024-11-23 18:21:36,739 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/data/4995d1bf7/9c627ba34c14445f9662c4a7369ae7e8/FLAGa0439858b
[2024-11-23 18:21:36,811 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/data/4995d1bf7/9c627ba34c14445f9662c4a7369ae7e8
[2024-11-23 18:21:36,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 18:21:36,817 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 18:21:36,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 18:21:36,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 18:21:36,824 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 18:21:36,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:21:36" (1/1) ...
[2024-11-23 18:21:36,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76cfbddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:36, skipping insertion in model container
[2024-11-23 18:21:36,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:21:36" (1/1) ...
[2024-11-23 18:21:36,895 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 18:21:38,218 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 18:21:38,230 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 18:21:38,357 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 18:21:38,505 INFO L204 MainTranslator]: Completed translation
[2024-11-23 18:21:38,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38 WrapperNode
[2024-11-23 18:21:38,506 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 18:21:38,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 18:21:38,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 18:21:38,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 18:21:38,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (1/1) ...
[2024-11-23 18:21:38,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (1/1) ...
[2024-11-23 18:21:38,555 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63
[2024-11-23 18:21:38,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 18:21:38,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 18:21:38,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 18:21:38,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 18:21:38,566 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (1/1) ...
[2024-11-23 18:21:38,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (1/1) ...
[2024-11-23 18:21:38,568 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (1/1) ...
[2024-11-23 18:21:38,587 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].
[2024-11-23 18:21:38,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (1/1) ...
[2024-11-23 18:21:38,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (1/1) ...
[2024-11-23 18:21:38,593 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (1/1) ...
[2024-11-23 18:21:38,594 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (1/1) ...
[2024-11-23 18:21:38,596 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (1/1) ...
[2024-11-23 18:21:38,598 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (1/1) ...
[2024-11-23 18:21:38,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (1/1) ...
[2024-11-23 18:21:38,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 18:21:38,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 18:21:38,602 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 18:21:38,602 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 18:21:38,604 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (1/1) ...
[2024-11-23 18:21:38,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:21:38,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 18:21:38,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 18:21:38,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 18:21:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-11-23 18:21:38,671 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-11-23 18:21:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 18:21:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 18:21:38,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 18:21:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 18:21:38,817 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 18:21:38,819 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 18:21:38,945 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-11-23 18:21:38,945 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 18:21:38,955 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 18:21:38,955 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-23 18:21:38,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:21:38 BoogieIcfgContainer
[2024-11-23 18:21:38,956 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 18:21:38,958 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 18:21:38,958 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 18:21:38,963 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 18:21:38,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:21:36" (1/3) ...
[2024-11-23 18:21:38,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb24c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:21:38, skipping insertion in model container
[2024-11-23 18:21:38,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:38" (2/3) ...
[2024-11-23 18:21:38,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb24c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:21:38, skipping insertion in model container
[2024-11-23 18:21:38,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:21:38" (3/3) ...
[2024-11-23 18:21:38,966 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_41_bad.i
[2024-11-23 18:21:38,983 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 18:21:38,984 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_predec_41_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-11-23 18:21:39,048 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 18:21:39,067 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;@1f36df59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 18:21:39,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-23 18:21:39,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-23 18:21:39,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-23 18:21:39,081 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:21:39,082 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:21:39,083 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-23 18:21:39,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:21:39,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times
[2024-11-23 18:21:39,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:21:39,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425312642]
[2024-11-23 18:21:39,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:21:39,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:21:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 18:21:39,248 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 18:21:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 18:21:39,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-23 18:21:39,326 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-23 18:21:39,327 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-11-23 18:21:39,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-11-23 18:21:39,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-23 18:21:39,338 INFO L422 BasicCegarLoop]: Path program histogram: [1]
[2024-11-23 18:21:39,374 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-23 18:21:39,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:21:39 BoogieIcfgContainer
[2024-11-23 18:21:39,377 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-23 18:21:39,378 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-23 18:21:39,378 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-23 18:21:39,378 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-23 18:21:39,379 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:21:38" (3/4) ...
[2024-11-23 18:21:39,383 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-11-23 18:21:39,384 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-23 18:21:39,386 INFO L158 Benchmark]: Toolchain (without parser) took 2568.55ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 47.8MB in the end (delta: 41.8MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB.
[2024-11-23 18:21:39,386 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:21:39,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1687.83ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 81.6MB in the end (delta: 7.7MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB.
[2024-11-23 18:21:39,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.51ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 78.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 18:21:39,389 INFO L158 Benchmark]: Boogie Preprocessor took 45.61ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:21:39,390 INFO L158 Benchmark]: RCFGBuilder took 353.77ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 65.5MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 18:21:39,391 INFO L158 Benchmark]: TraceAbstraction took 419.43ms. Allocated memory is still 117.4MB. Free memory was 65.0MB in the beginning and 47.8MB in the end (delta: 17.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 18:21:39,391 INFO L158 Benchmark]: Witness Printer took 5.76ms. Allocated memory is still 117.4MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:21:39,393 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1687.83ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 81.6MB in the end (delta: 7.7MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 48.51ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 78.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 45.61ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 353.77ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 65.5MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 419.43ms. Allocated memory is still 117.4MB. Free memory was 65.0MB in the beginning and 47.8MB in the end (delta: 17.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Witness Printer took 5.76ms. Allocated memory is still 117.4MB. Free memory is still 47.8MB. 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: 1551]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1564, overapproximation of fgets at line 1562.
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]
[L1576] 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)
[L1576] 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]
[L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_41_bad()
[L1558] int data;
[L1559] data = 0
[L1561] 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]
[L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1564] data = atoi(inputBuffer)
[L1571] CALL badSink(data)
[L1551] --data
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: 1551]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-23 18:21:39,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/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_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC --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 aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 18:21:42,323 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 18:21:42,415 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2024-11-23 18:21:42,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 18:21:42,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 18:21:42,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2024-11-23 18:21:42,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 18:21:42,470 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 18:21:42,470 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 18:21:42,471 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 18:21:42,471 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 18:21:42,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 18:21:42,471 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 18:21:42,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 18:21:42,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 18:21:42,472 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 18:21:42,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 18:21:42,472 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 18:21:42,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 18:21:42,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 18:21:42,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 18:21:42,473 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 18:21:42,473 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 18:21:42,473 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-23 18:21:42,473 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-23 18:21:42,473 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-23 18:21:42,473 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-23 18:21:42,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 18:21:42,473 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 18:21:42,473 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 18:21:42,474 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 18:21:42,474 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 18:21:42,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 18:21:42,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 18:21:42,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:21:42,474 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 18:21:42,474 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 18:21:42,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 18:21:42,475 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 18:21:42,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:21:42,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 18:21:42,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 18:21:42,475 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 18:21:42,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 18:21:42,475 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-23 18:21:42,475 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-23 18:21:42,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 18:21:42,480 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 18:21:42,480 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 18:21:42,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 18:21:42,480 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_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC
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 -> aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57
[2024-11-23 18:21:42,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 18:21:42,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 18:21:42,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 18:21:42,853 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 18:21:42,854 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 18:21:42,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i
[2024-11-23 18:21:45,931 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/data/11dfbd337/80d157f5a8024c2e95ba01cdd1489d45/FLAGde37dc480
[2024-11-23 18:21:46,376 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 18:21:46,376 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i
[2024-11-23 18:21:46,411 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/data/11dfbd337/80d157f5a8024c2e95ba01cdd1489d45/FLAGde37dc480
[2024-11-23 18:21:46,426 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/data/11dfbd337/80d157f5a8024c2e95ba01cdd1489d45
[2024-11-23 18:21:46,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 18:21:46,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 18:21:46,432 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 18:21:46,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 18:21:46,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 18:21:46,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:21:46" (1/1) ...
[2024-11-23 18:21:46,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a2217b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:46, skipping insertion in model container
[2024-11-23 18:21:46,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:21:46" (1/1) ...
[2024-11-23 18:21:46,509 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 18:21:47,646 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 18:21:47,662 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 18:21:47,768 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 18:21:47,956 INFO L204 MainTranslator]: Completed translation
[2024-11-23 18:21:47,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47 WrapperNode
[2024-11-23 18:21:47,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 18:21:47,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 18:21:47,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 18:21:47,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 18:21:47,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (1/1) ...
[2024-11-23 18:21:48,004 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (1/1) ...
[2024-11-23 18:21:48,035 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62
[2024-11-23 18:21:48,038 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 18:21:48,039 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 18:21:48,039 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 18:21:48,039 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 18:21:48,049 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (1/1) ...
[2024-11-23 18:21:48,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (1/1) ...
[2024-11-23 18:21:48,058 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (1/1) ...
[2024-11-23 18:21:48,081 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].
[2024-11-23 18:21:48,085 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (1/1) ...
[2024-11-23 18:21:48,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (1/1) ...
[2024-11-23 18:21:48,099 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (1/1) ...
[2024-11-23 18:21:48,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (1/1) ...
[2024-11-23 18:21:48,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (1/1) ...
[2024-11-23 18:21:48,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (1/1) ...
[2024-11-23 18:21:48,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (1/1) ...
[2024-11-23 18:21:48,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 18:21:48,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 18:21:48,121 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 18:21:48,121 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 18:21:48,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (1/1) ...
[2024-11-23 18:21:48,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:21:48,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 18:21:48,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 18:21:48,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 18:21:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-11-23 18:21:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-11-23 18:21:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-23 18:21:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 18:21:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 18:21:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 18:21:48,358 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 18:21:48,360 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 18:21:48,524 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live.
[2024-11-23 18:21:48,524 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 18:21:48,539 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 18:21:48,539 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-23 18:21:48,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:21:48 BoogieIcfgContainer
[2024-11-23 18:21:48,541 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 18:21:48,544 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 18:21:48,544 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 18:21:48,550 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 18:21:48,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:21:46" (1/3) ...
[2024-11-23 18:21:48,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4af5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:21:48, skipping insertion in model container
[2024-11-23 18:21:48,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:21:47" (2/3) ...
[2024-11-23 18:21:48,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4af5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:21:48, skipping insertion in model container
[2024-11-23 18:21:48,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:21:48" (3/3) ...
[2024-11-23 18:21:48,552 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_41_bad.i
[2024-11-23 18:21:48,567 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 18:21:48,570 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_predec_41_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-11-23 18:21:48,623 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 18:21:48,640 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;@52fbfb55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 18:21:48,641 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-23 18:21:48,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-23 18:21:48,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-23 18:21:48,654 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:21:48,655 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:21:48,656 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-23 18:21:48,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:21:48,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times
[2024-11-23 18:21:48,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:21:48,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883550210]
[2024-11-23 18:21:48,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:21:48,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 18:21:48,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 18:21:48,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 18:21:48,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 18:21:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 18:21:48,871 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 18:21:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 18:21:48,936 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace
[2024-11-23 18:21:48,938 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-23 18:21:48,939 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-11-23 18:21:48,944 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-11-23 18:21:48,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-23 18:21:49,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 18:21:49,148 INFO L422 BasicCegarLoop]: Path program histogram: [1]
[2024-11-23 18:21:49,179 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-23 18:21:49,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:21:49 BoogieIcfgContainer
[2024-11-23 18:21:49,182 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-23 18:21:49,183 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-23 18:21:49,183 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-23 18:21:49,183 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-23 18:21:49,184 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:21:48" (3/4) ...
[2024-11-23 18:21:49,187 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-11-23 18:21:49,187 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-23 18:21:49,188 INFO L158 Benchmark]: Toolchain (without parser) took 2758.16ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 80.9MB in the end (delta: 8.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB.
[2024-11-23 18:21:49,189 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:21:49,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1525.13ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 66.9MB in the end (delta: 22.3MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB.
[2024-11-23 18:21:49,190 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.65ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 64.4MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:21:49,190 INFO L158 Benchmark]: Boogie Preprocessor took 81.37ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 61.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:21:49,190 INFO L158 Benchmark]: RCFGBuilder took 420.73ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 48.2MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-23 18:21:49,191 INFO L158 Benchmark]: TraceAbstraction took 638.05ms. Allocated memory is still 117.4MB. Free memory was 47.8MB in the beginning and 81.6MB in the end (delta: -33.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:21:49,191 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 80.9MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:21:49,193 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1525.13ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 66.9MB in the end (delta: 22.3MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 80.65ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 64.4MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 81.37ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 61.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 420.73ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 48.2MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 638.05ms. Allocated memory is still 117.4MB. Free memory was 47.8MB in the beginning and 81.6MB in the end (delta: -33.8MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 4.32ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 80.9MB in the end (delta: 27.7kB). 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: 1551]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1564, overapproximation of fgets at line 1562.
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]
[L1576] 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)
[L1576] 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]
[L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_41_bad()
[L1558] int data;
[L1559] data = 0
[L1561] 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]
[L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1564] data = atoi(inputBuffer)
[L1571] CALL badSink(data)
[L1551] --data
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: 1551]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-23 18:21:49,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0606f6a2-28cb-4e4c-ac22-746bade7e2ec/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample