./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_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_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/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_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/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_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/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 addf942ede46230b25a4dc028edf6be01eaa699ab60b65838943e2936aa69ff2
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 01:24:02,744 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 01:24:02,809 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-11-24 01:24:02,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 01:24:02,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 01:24:02,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 01:24:02,839 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 01:24:02,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 01:24:02,839 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 01:24:02,840 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 01:24:02,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 01:24:02,840 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 01:24:02,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 01:24:02,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 01:24:02,841 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 01:24:02,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 01:24:02,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 01:24:02,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 01:24:02,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 01:24:02,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 01:24:02,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 01:24:02,842 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 01:24:02,842 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-24 01:24:02,842 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-24 01:24:02,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 01:24:02,843 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 01:24:02,843 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 01:24:02,843 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 01:24:02,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:24:02,843 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:24:02,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:24:02,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:24:02,843 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 01:24:02,844 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:24:02,844 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:24:02,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:24:02,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:24:02,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 01:24:02,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 01:24:02,844 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 01:24:02,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 01:24:02,844 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 01:24:02,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 01:24:02,845 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 01:24:02,845 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 01:24:02,845 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 01:24:02,845 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 01:24:02,845 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_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/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 -> addf942ede46230b25a4dc028edf6be01eaa699ab60b65838943e2936aa69ff2
[2024-11-24 01:24:03,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 01:24:03,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 01:24:03,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 01:24:03,167 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 01:24:03,167 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 01:24:03,168 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i
[2024-11-24 01:24:06,217 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/data/558e76f8c/1776e33b341846f29f35ae68d64d8dd9/FLAG543832639
[2024-11-24 01:24:06,749 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 01:24:06,749 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i
[2024-11-24 01:24:06,769 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/data/558e76f8c/1776e33b341846f29f35ae68d64d8dd9/FLAG543832639
[2024-11-24 01:24:06,784 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/data/558e76f8c/1776e33b341846f29f35ae68d64d8dd9
[2024-11-24 01:24:06,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 01:24:06,789 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 01:24:06,792 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 01:24:06,792 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 01:24:06,797 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 01:24:06,798 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:24:06" (1/1) ...
[2024-11-24 01:24:06,799 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20ea4248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:06, skipping insertion in model container
[2024-11-24 01:24:06,799 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:24:06" (1/1) ...
[2024-11-24 01:24:06,864 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 01:24:07,686 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:24:07,701 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 01:24:07,791 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:24:07,915 INFO L204 MainTranslator]: Completed translation
[2024-11-24 01:24:07,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07 WrapperNode
[2024-11-24 01:24:07,915 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 01:24:07,916 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 01:24:07,916 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 01:24:07,916 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 01:24:07,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (1/1) ...
[2024-11-24 01:24:07,940 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (1/1) ...
[2024-11-24 01:24:07,960 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 67
[2024-11-24 01:24:07,960 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 01:24:07,961 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 01:24:07,961 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 01:24:07,961 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 01:24:07,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (1/1) ...
[2024-11-24 01:24:07,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (1/1) ...
[2024-11-24 01:24:07,972 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (1/1) ...
[2024-11-24 01:24:07,984 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].
[2024-11-24 01:24:07,985 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (1/1) ...
[2024-11-24 01:24:07,985 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (1/1) ...
[2024-11-24 01:24:07,990 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (1/1) ...
[2024-11-24 01:24:07,991 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (1/1) ...
[2024-11-24 01:24:07,993 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (1/1) ...
[2024-11-24 01:24:07,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (1/1) ...
[2024-11-24 01:24:07,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (1/1) ...
[2024-11-24 01:24:07,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 01:24:07,998 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 01:24:07,998 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 01:24:07,998 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 01:24:07,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (1/1) ...
[2024-11-24 01:24:08,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:24:08,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:24:08,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 01:24:08,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 01:24:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-11-24 01:24:08,072 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-11-24 01:24:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 01:24:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 01:24:08,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 01:24:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 01:24:08,237 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 01:24:08,239 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 01:24:08,370 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live.
[2024-11-24 01:24:08,370 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 01:24:08,378 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 01:24:08,378 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-24 01:24:08,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:24:08 BoogieIcfgContainer
[2024-11-24 01:24:08,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 01:24:08,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 01:24:08,382 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 01:24:08,387 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 01:24:08,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:24:06" (1/3) ...
[2024-11-24 01:24:08,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc3fb93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:24:08, skipping insertion in model container
[2024-11-24 01:24:08,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:07" (2/3) ...
[2024-11-24 01:24:08,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc3fb93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:24:08, skipping insertion in model container
[2024-11-24 01:24:08,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:24:08" (3/3) ...
[2024-11-24 01:24:08,392 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i
[2024-11-24 01:24:08,407 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 01:24:08,408 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-11-24 01:24:08,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:24:08,485 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;@3569ee11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:24:08,486 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-24 01:24:08,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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)
[2024-11-24 01:24:08,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-24 01:24:08,496 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:24:08,496 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:24:08,497 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-24 01:24:08,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:24:08,500 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times
[2024-11-24 01:24:08,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:24:08,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847255471]
[2024-11-24 01:24:08,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:24:08,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:24:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:24:08,679 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-24 01:24:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:24:08,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-24 01:24:08,743 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-24 01:24:08,744 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-11-24 01:24:08,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-11-24 01:24:08,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 01:24:08,758 INFO L422 BasicCegarLoop]: Path program histogram: [1]
[2024-11-24 01:24:08,785 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 01:24:08,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:24:08 BoogieIcfgContainer
[2024-11-24 01:24:08,789 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 01:24:08,790 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 01:24:08,790 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 01:24:08,790 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 01:24:08,791 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:24:08" (3/4) ...
[2024-11-24 01:24:08,793 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-11-24 01:24:08,794 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 01:24:08,796 INFO L158 Benchmark]: Toolchain (without parser) took 2006.22ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 74.0MB in the end (delta: 27.1MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB.
[2024-11-24 01:24:08,796 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:24:08,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1124.07ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 41.0MB in the end (delta: 60.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB.
[2024-11-24 01:24:08,798 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.26ms. Allocated memory is still 142.6MB. Free memory was 41.0MB in the beginning and 38.3MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:24:08,799 INFO L158 Benchmark]: Boogie Preprocessor took 36.41ms. Allocated memory is still 142.6MB. Free memory was 38.3MB in the beginning and 36.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:24:08,799 INFO L158 Benchmark]: RCFGBuilder took 381.12ms. Allocated memory is still 142.6MB. Free memory was 36.7MB in the beginning and 93.1MB in the end (delta: -56.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB.
[2024-11-24 01:24:08,799 INFO L158 Benchmark]: TraceAbstraction took 408.14ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 74.7MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 01:24:08,800 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 142.6MB. Free memory was 74.7MB in the beginning and 74.0MB in the end (delta: 667.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:24:08,801 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1124.07ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 41.0MB in the end (delta: 60.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 44.26ms. Allocated memory is still 142.6MB. Free memory was 41.0MB in the beginning and 38.3MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 36.41ms. Allocated memory is still 142.6MB. Free memory was 38.3MB in the beginning and 36.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 381.12ms. Allocated memory is still 142.6MB. Free memory was 36.7MB in the beginning and 93.1MB in the end (delta: -56.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB.
* TraceAbstraction took 408.14ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 74.7MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Witness Printer took 4.53ms. Allocated memory is still 142.6MB. Free memory was 74.7MB in the beginning and 74.0MB in the end (delta: 667.4kB). 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 1558, overapproximation of fgets at line 1556.
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]
[L1570] 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)
[L1570] 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]
[L1571] CALL CWE191_Integer_Underflow__int_fgets_postdec_65_bad()
[L1551] int data;
[L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_postdec_65b_badSink;
[L1553] data = 0
[L1555] char inputBuffer[(3 * sizeof(data) + 2)] = "";
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1558] data = atoi(inputBuffer)
[L1565] CALL funcPtr(data)
[L1578] 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: 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 2 procedures, 24 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=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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
[2024-11-24 01:24:08,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/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
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_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/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_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/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_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/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 addf942ede46230b25a4dc028edf6be01eaa699ab60b65838943e2936aa69ff2
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 01:24:11,381 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 01:24:11,466 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2024-11-24 01:24:11,472 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 01:24:11,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 01:24:11,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2024-11-24 01:24:11,504 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 01:24:11,505 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 01:24:11,505 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 01:24:11,506 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 01:24:11,506 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 01:24:11,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 01:24:11,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 01:24:11,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 01:24:11,507 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 01:24:11,507 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 01:24:11,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 01:24:11,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 01:24:11,507 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 01:24:11,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 01:24:11,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 01:24:11,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 01:24:11,508 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-24 01:24:11,508 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-24 01:24:11,508 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-24 01:24:11,508 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-24 01:24:11,508 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-24 01:24:11,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 01:24:11,509 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 01:24:11,509 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 01:24:11,509 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 01:24:11,509 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:24:11,509 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:24:11,509 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:24:11,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:24:11,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 01:24:11,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:24:11,513 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:24:11,513 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:24:11,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:24:11,514 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 01:24:11,514 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 01:24:11,514 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 01:24:11,514 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 01:24:11,514 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-24 01:24:11,514 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-24 01:24:11,514 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 01:24:11,514 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 01:24:11,514 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 01:24:11,514 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 01:24:11,514 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_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/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 -> addf942ede46230b25a4dc028edf6be01eaa699ab60b65838943e2936aa69ff2
[2024-11-24 01:24:11,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 01:24:11,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 01:24:11,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 01:24:11,849 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 01:24:11,850 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 01:24:11,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i
[2024-11-24 01:24:14,927 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/data/0d8eca0cb/f50069ea5c5d45e8bfb82df2bf5b8c97/FLAG4ae564552
[2024-11-24 01:24:15,425 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 01:24:15,426 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i
[2024-11-24 01:24:15,463 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/data/0d8eca0cb/f50069ea5c5d45e8bfb82df2bf5b8c97/FLAG4ae564552
[2024-11-24 01:24:15,479 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/data/0d8eca0cb/f50069ea5c5d45e8bfb82df2bf5b8c97
[2024-11-24 01:24:15,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 01:24:15,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 01:24:15,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 01:24:15,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 01:24:15,489 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 01:24:15,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:24:15" (1/1) ...
[2024-11-24 01:24:15,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e418341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:15, skipping insertion in model container
[2024-11-24 01:24:15,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:24:15" (1/1) ...
[2024-11-24 01:24:15,536 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 01:24:16,403 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:24:16,416 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 01:24:16,528 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:24:16,696 INFO L204 MainTranslator]: Completed translation
[2024-11-24 01:24:16,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16 WrapperNode
[2024-11-24 01:24:16,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 01:24:16,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 01:24:16,698 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 01:24:16,698 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 01:24:16,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (1/1) ...
[2024-11-24 01:24:16,746 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (1/1) ...
[2024-11-24 01:24:16,771 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 66
[2024-11-24 01:24:16,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 01:24:16,772 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 01:24:16,772 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 01:24:16,772 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 01:24:16,781 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (1/1) ...
[2024-11-24 01:24:16,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (1/1) ...
[2024-11-24 01:24:16,787 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (1/1) ...
[2024-11-24 01:24:16,818 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].
[2024-11-24 01:24:16,822 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (1/1) ...
[2024-11-24 01:24:16,822 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (1/1) ...
[2024-11-24 01:24:16,833 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (1/1) ...
[2024-11-24 01:24:16,836 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (1/1) ...
[2024-11-24 01:24:16,837 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (1/1) ...
[2024-11-24 01:24:16,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (1/1) ...
[2024-11-24 01:24:16,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (1/1) ...
[2024-11-24 01:24:16,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 01:24:16,853 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 01:24:16,853 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 01:24:16,853 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 01:24:16,854 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (1/1) ...
[2024-11-24 01:24:16,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:24:16,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:24:16,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 01:24:16,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 01:24:16,926 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-11-24 01:24:16,927 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-11-24 01:24:16,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-24 01:24:16,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 01:24:16,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 01:24:16,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 01:24:17,119 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 01:24:17,121 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 01:24:17,306 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live.
[2024-11-24 01:24:17,310 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 01:24:17,321 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 01:24:17,324 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-24 01:24:17,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:24:17 BoogieIcfgContainer
[2024-11-24 01:24:17,324 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 01:24:17,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 01:24:17,328 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 01:24:17,333 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 01:24:17,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:24:15" (1/3) ...
[2024-11-24 01:24:17,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7a29ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:24:17, skipping insertion in model container
[2024-11-24 01:24:17,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:24:16" (2/3) ...
[2024-11-24 01:24:17,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7a29ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:24:17, skipping insertion in model container
[2024-11-24 01:24:17,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:24:17" (3/3) ...
[2024-11-24 01:24:17,338 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i
[2024-11-24 01:24:17,355 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 01:24:17,356 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-11-24 01:24:17,429 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:24:17,448 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;@67824fa6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:24:17,448 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-24 01:24:17,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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)
[2024-11-24 01:24:17,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-24 01:24:17,461 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:24:17,461 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:24:17,462 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-24 01:24:17,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:24:17,472 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times
[2024-11-24 01:24:17,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:24:17,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [52541635]
[2024-11-24 01:24:17,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:24:17,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:24:17,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:24:17,492 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:24:17,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 01:24:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:24:17,685 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-24 01:24:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:24:17,734 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace
[2024-11-24 01:24:17,736 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-24 01:24:17,737 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-11-24 01:24:17,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-11-24 01:24:17,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-24 01:24:17,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:24:17,946 INFO L422 BasicCegarLoop]: Path program histogram: [1]
[2024-11-24 01:24:17,965 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 01:24:17,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:24:17 BoogieIcfgContainer
[2024-11-24 01:24:17,968 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 01:24:17,968 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 01:24:17,968 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 01:24:17,969 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 01:24:17,969 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:24:17" (3/4) ...
[2024-11-24 01:24:17,972 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-11-24 01:24:17,972 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 01:24:17,974 INFO L158 Benchmark]: Toolchain (without parser) took 2490.86ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 37.5MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB.
[2024-11-24 01:24:17,974 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 83.9MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:24:17,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1212.80ms. Allocated memory is still 83.9MB. Free memory was 56.5MB in the beginning and 50.4MB in the end (delta: 6.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB.
[2024-11-24 01:24:17,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.11ms. Allocated memory is still 83.9MB. Free memory was 50.4MB in the beginning and 47.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:24:17,975 INFO L158 Benchmark]: Boogie Preprocessor took 80.07ms. Allocated memory is still 83.9MB. Free memory was 47.7MB in the beginning and 45.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:24:17,977 INFO L158 Benchmark]: RCFGBuilder took 471.63ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 31.4MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 01:24:17,978 INFO L158 Benchmark]: TraceAbstraction took 640.25ms. Allocated memory is still 83.9MB. Free memory was 31.0MB in the beginning and 37.5MB in the end (delta: -6.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:24:17,978 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 83.9MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:24:17,980 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.47ms. Allocated memory is still 83.9MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1212.80ms. Allocated memory is still 83.9MB. Free memory was 56.5MB in the beginning and 50.4MB in the end (delta: 6.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 74.11ms. Allocated memory is still 83.9MB. Free memory was 50.4MB in the beginning and 47.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 80.07ms. Allocated memory is still 83.9MB. Free memory was 47.7MB in the beginning and 45.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 471.63ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 31.4MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 640.25ms. Allocated memory is still 83.9MB. Free memory was 31.0MB in the beginning and 37.5MB in the end (delta: -6.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 4.31ms. Allocated memory is still 83.9MB. Free memory is still 37.5MB. 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 1558, overapproximation of fgets at line 1556.
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]
[L1570] 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)
[L1570] 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]
[L1571] CALL CWE191_Integer_Underflow__int_fgets_postdec_65_bad()
[L1551] int data;
[L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_postdec_65b_badSink;
[L1553] data = 0
[L1555] char inputBuffer[(3 * sizeof(data) + 2)] = "";
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1558] data = atoi(inputBuffer)
[L1565] CALL funcPtr(data)
[L1578] 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: 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 2 procedures, 24 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=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s 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
[2024-11-24 01:24:17,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a49dac-565e-42de-a4a8-39a5c4eb2dfb/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
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample