./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6b731b3e45cc745fc26f764e451c6f49e1c269922dce2bfc9965f3cdd36e32cc
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 08:58:41,534 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 08:58:41,594 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-12-02 08:58:41,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 08:58:41,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 08:58:41,622 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 08:58:41,622 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 08:58:41,623 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 08:58:41,623 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 08:58:41,623 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 08:58:41,623 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 08:58:41,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 08:58:41,624 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 08:58:41,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 08:58:41,624 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 08:58:41,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 08:58:41,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 08:58:41,624 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 08:58:41,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 08:58:41,624 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 08:58:41,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 08:58:41,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 08:58:41,624 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-02 08:58:41,625 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 08:58:41,625 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 08:58:41,625 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 08:58:41,625 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 08:58:41,625 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 08:58:41,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:58:41,625 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:58:41,625 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:58:41,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:58:41,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 08:58:41,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:58:41,625 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:58:41,626 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:58:41,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:58:41,626 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 08:58:41,626 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 08:58:41,626 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 08:58:41,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 08:58:41,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 08:58:41,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 08:58:41,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 08:58:41,626 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 08:58:41,626 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 08:58:41,626 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 08:58:41,626 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_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b731b3e45cc745fc26f764e451c6f49e1c269922dce2bfc9965f3cdd36e32cc
[2024-12-02 08:58:41,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 08:58:41,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 08:58:41,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 08:58:41,877 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 08:58:41,878 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 08:58:41,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i
[2024-12-02 08:58:44,533 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/data/d526c0bf2/be3e67e3a1c64ad580e5aef6f8c0e544/FLAG5c6bc3ec5
[2024-12-02 08:58:44,848 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 08:58:44,848 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i
[2024-12-02 08:58:44,868 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/data/d526c0bf2/be3e67e3a1c64ad580e5aef6f8c0e544/FLAG5c6bc3ec5
[2024-12-02 08:58:44,883 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/data/d526c0bf2/be3e67e3a1c64ad580e5aef6f8c0e544
[2024-12-02 08:58:44,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 08:58:44,887 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 08:58:44,888 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 08:58:44,888 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 08:58:44,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 08:58:44,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:58:44" (1/1) ...
[2024-12-02 08:58:44,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@439c92fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:44, skipping insertion in model container
[2024-12-02 08:58:44,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:58:44" (1/1) ...
[2024-12-02 08:58:44,928 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 08:58:45,572 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:58:45,581 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 08:58:45,657 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:58:45,751 INFO L204 MainTranslator]: Completed translation
[2024-12-02 08:58:45,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45 WrapperNode
[2024-12-02 08:58:45,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 08:58:45,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 08:58:45,753 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 08:58:45,753 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 08:58:45,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (1/1) ...
[2024-12-02 08:58:45,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (1/1) ...
[2024-12-02 08:58:45,791 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65
[2024-12-02 08:58:45,792 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 08:58:45,792 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 08:58:45,792 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 08:58:45,792 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 08:58:45,799 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (1/1) ...
[2024-12-02 08:58:45,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (1/1) ...
[2024-12-02 08:58:45,802 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (1/1) ...
[2024-12-02 08:58:45,814 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0].
[2024-12-02 08:58:45,814 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (1/1) ...
[2024-12-02 08:58:45,814 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (1/1) ...
[2024-12-02 08:58:45,819 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (1/1) ...
[2024-12-02 08:58:45,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (1/1) ...
[2024-12-02 08:58:45,821 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (1/1) ...
[2024-12-02 08:58:45,823 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (1/1) ...
[2024-12-02 08:58:45,823 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (1/1) ...
[2024-12-02 08:58:45,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 08:58:45,826 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 08:58:45,826 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 08:58:45,826 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 08:58:45,827 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (1/1) ...
[2024-12-02 08:58:45,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:58:45,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:58:45,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 08:58:45,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 08:58:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-12-02 08:58:45,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-12-02 08:58:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 08:58:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 08:58:45,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 08:58:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 08:58:45,978 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 08:58:45,979 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 08:58:46,059 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live.
[2024-12-02 08:58:46,059 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 08:58:46,068 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 08:58:46,068 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 08:58:46,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:58:46 BoogieIcfgContainer
[2024-12-02 08:58:46,068 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 08:58:46,070 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 08:58:46,071 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 08:58:46,075 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 08:58:46,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:58:44" (1/3) ...
[2024-12-02 08:58:46,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb7b822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:58:46, skipping insertion in model container
[2024-12-02 08:58:46,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:45" (2/3) ...
[2024-12-02 08:58:46,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb7b822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:58:46, skipping insertion in model container
[2024-12-02 08:58:46,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:58:46" (3/3) ...
[2024-12-02 08:58:46,077 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i
[2024-12-02 08:58:46,092 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 08:58:46,093 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-12-02 08:58:46,140 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 08:58:46,150 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;@372a7f08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 08:58:46,150 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-12-02 08:58:46,154 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)
[2024-12-02 08:58:46,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-12-02 08:58:46,159 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:58:46,160 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:58:46,160 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-02 08:58:46,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:58:46,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1965623918, now seen corresponding path program 1 times
[2024-12-02 08:58:46,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:58:46,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057823507]
[2024-12-02 08:58:46,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:58:46,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:58:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 08:58:46,279 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 08:58:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 08:58:46,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 08:58:46,319 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 08:58:46,320 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-12-02 08:58:46,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-12-02 08:58:46,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 08:58:46,326 INFO L422 BasicCegarLoop]: Path program histogram: [1]
[2024-12-02 08:58:46,343 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 08:58:46,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:58:46 BoogieIcfgContainer
[2024-12-02 08:58:46,346 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 08:58:46,347 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 08:58:46,347 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 08:58:46,347 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 08:58:46,348 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:58:46" (3/4) ...
[2024-12-02 08:58:46,350 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-12-02 08:58:46,350 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 08:58:46,351 INFO L158 Benchmark]: Toolchain (without parser) took 1464.37ms. Allocated memory is still 142.6MB. Free memory was 114.6MB in the beginning and 70.8MB in the end (delta: 43.8MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB.
[2024-12-02 08:58:46,351 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:58:46,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 863.91ms. Allocated memory is still 142.6MB. Free memory was 114.5MB in the beginning and 104.9MB in the end (delta: 9.5MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB.
[2024-12-02 08:58:46,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.38ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 102.2MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 08:58:46,352 INFO L158 Benchmark]: Boogie Preprocessor took 33.15ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 100.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:58:46,353 INFO L158 Benchmark]: RCFGBuilder took 242.39ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 88.5MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 08:58:46,353 INFO L158 Benchmark]: TraceAbstraction took 275.97ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 71.4MB in the end (delta: 16.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 08:58:46,354 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 142.6MB. Free memory was 71.4MB in the beginning and 70.8MB in the end (delta: 532.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 08:58:46,356 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 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 863.91ms. Allocated memory is still 142.6MB. Free memory was 114.5MB in the beginning and 104.9MB in the end (delta: 9.5MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 39.38ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 102.2MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 33.15ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 100.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 242.39ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 88.5MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 275.97ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 71.4MB in the end (delta: 16.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Witness Printer took 3.28ms. Allocated memory is still 142.6MB. Free memory was 71.4MB in the beginning and 70.8MB in the end (delta: 532.3kB). Peak memory consumption was 8.4MB. 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: 1568]: 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]
[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_postdec_18_bad()
[L1550] int data;
[L1551] data = 0
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1555] 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]
[L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1558] data = atoi(inputBuffer)
[L1568] 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: 1568]: 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: 0.2s, 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, 13 NumberOfCodeBlocks, 13 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
[2024-12-02 08:58:46,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6b731b3e45cc745fc26f764e451c6f49e1c269922dce2bfc9965f3cdd36e32cc
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 08:58:48,324 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 08:58:48,403 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2024-12-02 08:58:48,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 08:58:48,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 08:58:48,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2024-12-02 08:58:48,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 08:58:48,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 08:58:48,432 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 08:58:48,432 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 08:58:48,433 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 08:58:48,433 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 08:58:48,433 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 08:58:48,433 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 08:58:48,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 08:58:48,433 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 08:58:48,434 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 08:58:48,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 08:58:48,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 08:58:48,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 08:58:48,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 08:58:48,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 08:58:48,434 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 08:58:48,434 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-12-02 08:58:48,434 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-02 08:58:48,434 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-12-02 08:58:48,435 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 08:58:48,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 08:58:48,435 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 08:58:48,435 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 08:58:48,435 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 08:58:48,435 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:58:48,435 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:58:48,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:58:48,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:58:48,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 08:58:48,435 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:58:48,436 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:58:48,436 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:58:48,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:58:48,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 08:58:48,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 08:58:48,436 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 08:58:48,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 08:58:48,436 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-12-02 08:58:48,436 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-12-02 08:58:48,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 08:58:48,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 08:58:48,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 08:58:48,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 08:58:48,437 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_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b731b3e45cc745fc26f764e451c6f49e1c269922dce2bfc9965f3cdd36e32cc
[2024-12-02 08:58:48,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 08:58:48,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 08:58:48,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 08:58:48,672 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 08:58:48,672 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 08:58:48,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i
[2024-12-02 08:58:51,355 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/data/99f52b18a/584afb12110a4d4782f2a6242ddb2d77/FLAGa58d998ad
[2024-12-02 08:58:51,618 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 08:58:51,619 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i
[2024-12-02 08:58:51,640 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/data/99f52b18a/584afb12110a4d4782f2a6242ddb2d77/FLAGa58d998ad
[2024-12-02 08:58:51,655 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/data/99f52b18a/584afb12110a4d4782f2a6242ddb2d77
[2024-12-02 08:58:51,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 08:58:51,659 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 08:58:51,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 08:58:51,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 08:58:51,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 08:58:51,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:58:51" (1/1) ...
[2024-12-02 08:58:51,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273d0c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:51, skipping insertion in model container
[2024-12-02 08:58:51,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:58:51" (1/1) ...
[2024-12-02 08:58:51,703 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 08:58:52,375 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:58:52,387 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 08:58:52,485 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:58:52,587 INFO L204 MainTranslator]: Completed translation
[2024-12-02 08:58:52,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52 WrapperNode
[2024-12-02 08:58:52,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 08:58:52,588 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 08:58:52,588 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 08:58:52,588 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 08:58:52,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (1/1) ...
[2024-12-02 08:58:52,610 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (1/1) ...
[2024-12-02 08:58:52,626 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64
[2024-12-02 08:58:52,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 08:58:52,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 08:58:52,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 08:58:52,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 08:58:52,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (1/1) ...
[2024-12-02 08:58:52,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (1/1) ...
[2024-12-02 08:58:52,639 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (1/1) ...
[2024-12-02 08:58:52,653 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0].
[2024-12-02 08:58:52,653 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (1/1) ...
[2024-12-02 08:58:52,653 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (1/1) ...
[2024-12-02 08:58:52,660 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (1/1) ...
[2024-12-02 08:58:52,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (1/1) ...
[2024-12-02 08:58:52,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (1/1) ...
[2024-12-02 08:58:52,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (1/1) ...
[2024-12-02 08:58:52,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (1/1) ...
[2024-12-02 08:58:52,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 08:58:52,670 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 08:58:52,670 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 08:58:52,670 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 08:58:52,671 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (1/1) ...
[2024-12-02 08:58:52,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:58:52,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:58:52,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 08:58:52,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 08:58:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-12-02 08:58:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-12-02 08:58:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-12-02 08:58:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 08:58:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 08:58:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 08:58:52,834 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 08:58:52,835 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 08:58:52,933 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-12-02 08:58:52,934 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 08:58:52,942 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 08:58:52,942 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 08:58:52,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:58:52 BoogieIcfgContainer
[2024-12-02 08:58:52,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 08:58:52,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 08:58:52,945 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 08:58:52,950 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 08:58:52,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:58:51" (1/3) ...
[2024-12-02 08:58:52,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1351b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:58:52, skipping insertion in model container
[2024-12-02 08:58:52,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:52" (2/3) ...
[2024-12-02 08:58:52,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1351b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:58:52, skipping insertion in model container
[2024-12-02 08:58:52,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:58:52" (3/3) ...
[2024-12-02 08:58:52,952 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i
[2024-12-02 08:58:52,967 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 08:58:52,968 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-12-02 08:58:53,005 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 08:58:53,014 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;@23ae3063, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 08:58:53,015 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-12-02 08:58:53,017 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)
[2024-12-02 08:58:53,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-12-02 08:58:53,022 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:58:53,023 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:58:53,023 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-02 08:58:53,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:58:53,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1965623918, now seen corresponding path program 1 times
[2024-12-02 08:58:53,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:58:53,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955594535]
[2024-12-02 08:58:53,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:58:53,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:58:53,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:58:53,037 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:58:53,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 08:58:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 08:58:53,152 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 08:58:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 08:58:53,204 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace
[2024-12-02 08:58:53,205 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 08:58:53,206 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-12-02 08:58:53,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-12-02 08:58:53,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 08:58:53,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:58:53,412 INFO L422 BasicCegarLoop]: Path program histogram: [1]
[2024-12-02 08:58:53,427 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 08:58:53,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:58:53 BoogieIcfgContainer
[2024-12-02 08:58:53,429 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 08:58:53,429 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 08:58:53,429 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 08:58:53,430 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 08:58:53,430 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:58:52" (3/4) ...
[2024-12-02 08:58:53,432 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-12-02 08:58:53,433 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 08:58:53,434 INFO L158 Benchmark]: Toolchain (without parser) took 1775.39ms. Allocated memory is still 92.3MB. Free memory was 65.5MB in the beginning and 57.0MB in the end (delta: 8.5MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB.
[2024-12-02 08:58:53,434 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:58:53,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 927.97ms. Allocated memory is still 92.3MB. Free memory was 65.4MB in the beginning and 61.9MB in the end (delta: 3.5MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB.
[2024-12-02 08:58:53,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.77ms. Allocated memory is still 92.3MB. Free memory was 61.9MB in the beginning and 59.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:58:53,435 INFO L158 Benchmark]: Boogie Preprocessor took 41.59ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 56.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:58:53,435 INFO L158 Benchmark]: RCFGBuilder took 273.38ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 43.9MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 08:58:53,436 INFO L158 Benchmark]: TraceAbstraction took 484.07ms. Allocated memory is still 92.3MB. Free memory was 43.4MB in the beginning and 57.0MB in the end (delta: -13.6MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB.
[2024-12-02 08:58:53,436 INFO L158 Benchmark]: Witness Printer took 3.55ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 57.0MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:58:53,438 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 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 927.97ms. Allocated memory is still 92.3MB. Free memory was 65.4MB in the beginning and 61.9MB in the end (delta: 3.5MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 38.77ms. Allocated memory is still 92.3MB. Free memory was 61.9MB in the beginning and 59.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 41.59ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 56.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 273.38ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 43.9MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 484.07ms. Allocated memory is still 92.3MB. Free memory was 43.4MB in the beginning and 57.0MB in the end (delta: -13.6MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB.
* Witness Printer took 3.55ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 57.0MB in the end (delta: 18.4kB). 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: 1568]: 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]
[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_postdec_18_bad()
[L1550] int data;
[L1551] data = 0
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1555] 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]
[L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1558] data = atoi(inputBuffer)
[L1568] 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: 1568]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 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
[2024-12-02 08:58:53,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd1e0e1-2c30-4a0e-bfdd-06e34ecfc9ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample